• 781 Citations
  • 16 h-Index
1993 …2019
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Research Output 1993 2019

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Conference contribution
2017
1 Citation (Scopus)

Influence of nozzle jet flushing on wire breakage in 1st-cut wire edm from start hole

Kawata, A., Okada, A., Okamoto, Y. & Kurihara, H., 2017, Recent Development in Machining, Materials and Mechanical Technologies II - IC3MT 2016. Trans Tech Publications Ltd, Vol. 749 KEM. p. 130-135 6 p. (Key Engineering Materials; vol. 749 KEM).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nozzles
Wire
Debris
Electric discharge machining
Flow fields
1 Citation (Scopus)

Multi-wire EDM slicing of semiconductors with group power supplying method

Okamoto, Y., Ikeda, T., Kurihara, H., Okada, A. & Kido, M., Jan 1 2017, Proceedings of the 17th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2017. euspen, p. 183-184 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

slicing
supplying
wire
Wire
Semiconductor materials
1 Citation (Scopus)

Study on clarification of large-Area eb irradiation phenomenon by electron track analysis

Kimura, Y., Shinonaga, T. & Okada, A., 2017, Recent Development in Machining, Materials and Mechanical Technologies II - IC3MT 2016. Trans Tech Publications Ltd, Vol. 749 KEM. p. 118-123 6 p. (Key Engineering Materials; vol. 749 KEM).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electron beams
Irradiation
Electrons
Analytical models
Metals
2016
1 Citation (Scopus)

Formation of Periodic Nanostructures with Femtosecond Laser for Creation of New Functional Biomaterials

Shinonaga, T., Kinoshita, S., Okamoto, Y., Tsukamoto, M. & Okada, A., 2016, Procedia CIRP. Elsevier, Vol. 42. p. 57-61 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ultrashort pulses
Biomaterials
Nanostructures
Titanium
Lasers
4 Citations (Scopus)

High-speed Observation of Thin Wire Movement in Fine Wire EDM

Kamei, T., Okada, A. & Okamoto, Y., 2016, Procedia CIRP. Elsevier, Vol. 42. p. 596-600 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wire
Electrodes
High speed cameras
Tungsten
Machining
16 Citations (Scopus)

Improvement in Surface Characteristics by EDM with Chromium Powder Mixed Fluid

Toshimitsu, R., Okada, A., Kitada, R. & Okamoto, Y., 2016, Procedia CIRP. Elsevier, Vol. 42. p. 231-235 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Chromium
Powders
Fluids
Powder metals
Corrosion resistance

Influence of Pulse duration on Processing Characteristics of Transparent Conductive Film Containing Silver Nanowires by ns Pulsed Fiber Laser

Oshita, M., Nishi, N., Okamoto, Y., Okada, A., Shinonaga, T. & Sakagawa, T., 2016, Procedia CIRP. Elsevier, Vol. 42. p. 62-66 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Conductive films
Fiber lasers
Pulsed lasers
Nanowires
Surface properties
2 Citations (Scopus)

Study on high efferent micro-deburring by large- Area EB irradiation

Shinonaga, T., Kimura, Y., Okada, A. & Miyoshi, T., 2016, Proceedings of the 16th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2016. euspen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Deburring
Electron beams
Irradiation
electron beams
irradiation
2015
1 Citation (Scopus)

Effects of focusing condition on micro-welding characteristics of borosilicate glass by picosecond pulsed laser

Takekuni, T., Okamoto, Y., Fujiwara, T., Okada, A. & Miyamoto, I., 2015, Key Engineering Materials. Trans Tech Publications Ltd, Vol. 656-657. p. 461-467 7 p. (Key Engineering Materials; vol. 656-657).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Borosilicate glass
Pulsed lasers
Welding
Molten materials
Glass

Film formation mechanism in alumina coating by large-area electron beam irradiation

Takata, M., Shinonaga, T., Okamoto, Y., Okada, A., Inoue, M. & Sano, S., Oct 18 2015, Proceedings of the 8th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2015. Japan Society of Mechanical Engineers

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electron beams
Alumina
Irradiation
Coatings
Jigs

Fundamental study on curved hole drilling method by EDM with suspended ball electrode

Yamaguchi, A., Okada, A., Miyake, T. & Ikeshima, T., Oct 18 2015, Proceedings of the 8th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2015. Japan Society of Mechanical Engineers

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Drilling
Machining
Electrodes
Metals
Electric potential

Fundamental study on metal film coating by large-area EB irradiation

Takata, M., Shinonaga, T., Okada, A., Inoue, M. & Sano, S., 2015, Proceedings - ASPE 2015 Annual Meeting. American Society for Precision Engineering, ASPE, p. 595-598 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Irradiation
Coatings
Metals

High-quality and reliable removal method of ZnO by ns pulsed fiber laser with square core optical fiber

Nishi, N., Okamoto, Y., Okada, A., Nakashiba, S. I. & Sakagawa, T., Oct 18 2015, Proceedings of the 8th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2015. Japan Society of Mechanical Engineers

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fiber lasers
Pulsed lasers
Optical fibers
Masks
Zinc oxide

Investigation of laser micro-drilling method for multi-layered artificial skin

Asako, K., Okamoto, Y., Okada, A., Minagi, S., Maeda, N., Pan, Q., Jin, K. & Nishigawa, G., Oct 18 2015, Proceedings of the 8th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2015. Japan Society of Mechanical Engineers

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Pulse repetition rate
Drilling
Skin
Air permeability
Lasers

Investigation of machining controllabillity in multi-wire EDM slicing with group power supplying method

Suzuki, A., Okamoto, Y., Okada, A., Kurihara, H. & Kido, M., Oct 18 2015, Proceedings of the 8th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2015. Japan Society of Mechanical Engineers

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Machining
Wire
Monocrystalline silicon
Electrodes
Electric potential

Smart laser micro-welding of difficult-to-weld materials for electronic industry

Okamoto, Y., Nishi, N., Nakashiba, S., Sakagawa, T. & Okada, A., 2015, Laser-Based Micro- and Nanoprocessing IX. SPIE, Vol. 9351. 935103

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electronics industry
Welding
welding
aluminum alloys
YAG lasers

Study on applicability of large-area EB irradiation to micro-deburring

Miyoshi, T., Okada, A. & Okamoto, Y., 2015, Key Engineering Materials. Trans Tech Publications Ltd, Vol. 656-657. p. 369-374 6 p. (Key Engineering Materials; vol. 656-657).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Deburring
Electron beams
Irradiation
Metals
Steel

Study on surface characteristics of EDMed surface with nickel powder mixed fluid

Iwasaki, S., Kitada, R., Okada, A. & Okamoto, Y., 2015, Key Engineering Materials. Trans Tech Publications Ltd, Vol. 656-657. p. 375-380 6 p. (Key Engineering Materials; vol. 656-657).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nickel
Powders
Fluids
Metals
Molds
2014
2 Citations (Scopus)

Development of simple power supplying system in multi-wire EDM slicing method

Okamoto, Y., Suzuki, A., Kimura, A., Okada, A., Kurihara, H. & Kido, M., 2014, Proceedings - ASPE 2014 Annual Meeting. American Society for Precision Engineering, ASPE, p. 251-254 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wire

Effect of Jet flushing with tilting nozzle in wire electrical discharge machining

Okada, A., Konishi, T., Okamoto, Y. & Kurihara, H., 2014, Conference Proceedings - 14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014. euspen, Vol. 2. p. 149-152 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

flushing
Electric discharge machining
debris
Debris
machining
2 Citations (Scopus)

Novel micro-welding of silicon and glass by ultrashort pulsed laser

Okamoto, Y., Miyamoto, I., Vihinen, J. & Okada, A., 2014, Advanced Materials Research. Trans Tech Publications, Vol. 783-786. p. 2792-2797 6 p. (Advanced Materials Research; vol. 783-786).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Pulsed lasers
Welding
Glass
Silicon
Lasers
2013
11 Citations (Scopus)

Fundamental study on micro-deburring by large-area EB irradiation

Okada, A., Yonehara, H. & Okamoto, Y., 2013, Procedia CIRP. Vol. 5. p. 19-24 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Deburring
Electron beams
Irradiation
Alloy steel
Metals
10 Citations (Scopus)

Fundamental study on multi-wire EDM slicing of SiC by wire electrode with track-shaped section

Kimura, A., Okamoto, Y., Okada, A., Ohya, J. & Yamauchi, T., 2013, Procedia CIRP. Vol. 6. p. 232-237 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wire
Electrodes
Ingots
Silicon carbide
Brass
4 Citations (Scopus)

Fundamental study on sputter deposition of ceramic film by large-area electron beam irradiation

Misumi, S., Okada, A., Okamoto, Y. & Inoue, M., 2013, Procedia CIRP. Vol. 6. p. 486-491 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sputter deposition
Electron beams
Irradiation
Steel
Zirconia
2 Citations (Scopus)

Influence of weld bead geometry on thermal deformation in laser micro-welding

Matsuoka, S., Okamoto, Y. & Okada, A., 2013, Procedia CIRP. Vol. 6. p. 492-497 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Welding
Welds
Geometry
Lasers
Laser beam effects

Singulation of semiconductor package by superposition of pulsed fiber laser and green yag laser

Okamoto, Y., Shirasaya, K., Kitada, R. & Okada, A., 2013, ICALEO 2013 - 32nd International Congress on Applications of Lasers and Electro-Optics. p. 829-835 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fiber lasers
Pulsed lasers
Semiconductor materials
Laser pulses
Lasers

Study on releasability of molded resin from EDM finished surface with metal powder mixed fluid

Okada, A., Kitada, R., Iwasaki, S. & Okamoto, Y., 2013, Proceedings of the 28th Annual Meeting of the American Society for Precision Engineering, ASPE 2013. p. 554-557 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

resin
fluid
metal
2012

Applicability of reactive ion etching to fabrication of micro-prism-array for dioptrics system

Fujie, R., Okada, A. & Uno, Y., 2012, 10th International Conference on Progress of Machining Technology, ICPMT 2012. p. 245-248 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Reactive ion etching
Prisms
Fabrication
Lenses
Intraocular lenses
10 Citations (Scopus)

Challenge to development of functional multi-wire EDM slicing method using wire electrode with track-shaped section

Okamoto, Y., Kimura, A., Okada, A., Uno, Y., Ohya, J. & Yamauchi, T., 2012, Key Engineering Materials. Vol. 523-524. p. 287-292 6 p. (Key Engineering Materials; vol. 523-524).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electric discharge machining
Wire
Electrodes
Steel
Brass

Effect of plasma nitriding on cutting performance of stainless steel cutlery

Tamaoki, T., Okada, A., Uemura, K. & Uno, Y., 2012, Proceedings of the 12th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2012. euspen, Vol. 2. p. 266-270 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

razor blades
nitriding
Nitriding
Stainless Steel
stainless steels

Evaluation of damaged region at the groove edge of TCO film in pulsed fiber laser processing

Okamoto, Y., Takahashi, N., Nakashiba, S. I., Sakagawa, T. & Okada, A., 2012, ICALEO 2012 - 31st International Congress on Applications of Lasers and Electro-Optics. p. 860-865 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fiber lasers
Pulsed lasers
Lenses
Cracks
Laser beams

High-performance micro-welding of aluminum alloy by combination of pulsed Nd: YAG laser and continuous diode laser

Okamoto, Y., Nakashiba, S., Sakagawa, T. & Okada, A., 2012, Materials Science and Technology Conference and Exhibition 2012, MS and T 2012. Vol. 1. p. 332-339 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Semiconductor lasers
Aluminum alloys
Welding
Lasers
Heating

Hight-speed observation of wire movement in fine wire EDM

Ichii, S., Okada, A. & Okamoto, Y., 2012, 10th International Conference on Progress of Machining Technology, ICPMT 2012. p. 56-59 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wire
Electrodes
High speed cameras
Video cameras
Machining

Influence of surrounding gas type and pressure condition on micro-drilling of silicon carbide by harmonics of Nd: YAG laser

Okamoto, Y., Urushibata, S., Okada, A., Sakagawa, T. & Nakashiba, S. I., 2012, ICALEO 2012 - 31st International Congress on Applications of Lasers and Electro-Optics. p. 1269-1276 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Silicon carbide
Drilling
Gases
Lasers
Plasmas
1 Citation (Scopus)

Investigation on micro-machining characteristics and phenomenon of semiconductor materials by harmonics of Nd: YAG laser

Hirano, T., Okamoto, Y., Okada, A., Uno, Y., Sakagawa, T. & Nakashiba, S. I., 2012, Key Engineering Materials. Vol. 516. p. 36-41 6 p. (Key Engineering Materials; vol. 516).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Machining
Semiconductor materials
Plasmas
Wavelength
Lasers
1 Citation (Scopus)

Novel approach for slicing of silicon carbide by multi-wire EDM using wire electrode with track-shaped section

Okamoto, Y., Kimura, A., Okada, A., Ohya, J. & Yamauchi, T., 2012, Proceedings - ASPE 2012 Annual Meeting. 54 ed. p. 331-334 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Silicon carbide
Wire
Electrodes
5 Citations (Scopus)

Optimization of nozzle flushing method for smooth debris exclusion in wire EDM

Fujimoto, T., Okada, A., Okamoto, Y. & Uno, Y., 2012, Key Engineering Materials. Vol. 516. p. 73-78 6 p. (Key Engineering Materials; vol. 516).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Debris
Nozzles
Wire
Machining
Flow fields

Singulation of sapphire substrate with high aspect ratio internal modification by sub-nanosecond pulsed fiber laser

Okamoto, Y., Takahashi, K. & Okada, A., 2012, ICALEO 2012 - 31st International Congress on Applications of Lasers and Electro-Optics. p. 813-819 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Aluminum Oxide
Fiber lasers
Pulsed lasers
Sapphire
Aspect ratio

Surface modification of cemented tungsten carbide with nickel binder by large-area electron beam

Okada, A., Misumi, S. & Okamoto, Y., 2012, 10th International Conference on Progress of Machining Technology, ICPMT 2012. p. 80-83 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Tungsten carbide
Binders
Surface treatment
Electron beams
Nickel

Thermal deformation in micro-welding of thin stainless steel sheet by single-mode fiber laser

Okamoto, Y., Matsuoka, S., Ismail, M. I. S. & Okada, A., 2012, 10th International Conference on Progress of Machining Technology, ICPMT 2012. p. 144-147 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Steel sheet
Single mode fibers
Fiber lasers
Welding
Stainless steel
2011

Clarification of surface layer temperature in EB polishing by unsteady heat conduction analysis

Fujita, T., Okada, A., Okamoto, Y. & Uno, Y., 2011, Proceedings of the 6th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2011.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Polishing
Heat conduction
Temperature
Tungsten carbide
Carbides

Effect of continuous diode laser on crack generation in pulsed Nd: YAG laser welding of aluminum alloy

Miura, K., Okamoto, Y., Nakashiba, S. I., Sakagawa, T., Okada, A. & Uno, Y., 2011, Proceedings of the 6th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2011.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Laser beam welding
Semiconductor lasers
Aluminum alloys
Cracks
Stress concentration

Effects of laser wavelength and intensity distribution on removal characteristics of TCO film

Takahashi, N., Okamoto, Y., Nakashiba, S. I., Sakagawa, T., Okada, A. & Uno, Y., 2011, Proceedings of the 6th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2011.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Laser beams
Wavelength
Lasers
Laser pulses

High-quality dicing of semiconductor package by superposition of pulsed fiber laser and SHG: YAG laser

Yamamoto, H., Okamoto, Y., Bin Mohd Noor, M. F., Kitada, R. & Okada, A., 2011, Proceedings of the 6th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2011.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fiber lasers
Pulsed lasers
Semiconductor materials
Laser beams
Lasers

Improvement of razor blade surface integrity by plasma nitriding

Tamaoki, T., Uemura, K., Okada, A. & Uno, Y., 2011, Proceedings of the 6th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2011.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nitriding
Plasmas
Temperature
Wear resistance
Surface treatment
1 Citation (Scopus)

Influence of carbon fiber direction on EDM characteristics of CFRP

Ichii, S., Okada, A., Okamoto, Y. & Uno, Y., 2011, Proceedings of the 6th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2011.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Carbon fiber reinforced plastics
Carbon fibers
Machining
Fibers
6 Citations (Scopus)

Welding characteristics of aluminum alloy by pulsed nd: Yag laser with pre-and post-irradiation of superposed continuous diode laser

Nakashiba, S. I., Okamoto, Y., Sakagawa, T., Miura, K., Okada, A. & Uno, Y., 2011, 30th International Congress on Applications of Lasers and Electro-Optics, ICALEO 2011. p. 825-832 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Semiconductor lasers
Aluminum alloys
Welding
Irradiation
Lasers
2010
9 Citations (Scopus)

EDM characteristics of carbon fiber reinforced plastic

Wang, H., Habib, S., Okada, A. & Uno, Y., 2010, 16th International Symposium on Electromachining, ISEM 2010. Shanghai Jiaotong University Press, p. 65-68 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electric discharge machining
Carbon fiber reinforced plastics
Machining
Surface roughness
Wear of materials
2 Citations (Scopus)

Increases in corrosion resistance and water repellency of metal Mold surface by EB polishing

Okada, A., Uno, Y. & Uemura, K., 2010, Proceedings - ASPE 2010 Annual Meeting. Vol. 50. p. 301-304 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Polishing
Corrosion resistance
Metals
Water
2 Citations (Scopus)

Surface finishing of cemented carbide by large-area EB irradiation

Guo, H., Kitada, R., Okada, A. & Uno, Y., 2010, 16th International Symposium on Electromachining, ISEM 2010. Shanghai Jiaotong University Press, p. 451-454 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Carbides
Electron beams
Irradiation
Surface treatment
Resins