Takuya Kunihiro

  • 740 Citations
  • 12 h-Index
20012019
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Research Output 2001 2019

  • 740 Citations
  • 12 h-Index
  • 28 Article
  • 1 Chapter
  • 1 Conference contribution
2019

Hypervelocity collision and water-rock interaction in space preserved in the Chelyabinsk ordinary chondrite

Nakamura, E., Kunihiro, T., Ota, T., Sakaguchi, C., Tanaka, R., Kitagawa, H., Kobayashi, K., Yamanaka, M., Shimaki, Y., Edward Bebout, G., Miura, H., Yamamoto, T., Malkovets, V., Grokhovsky, V., Koroleva, O. & Litasov, K., Jan 1 2019, In : Proceedings of the Japan Academy. Series B, Physical and biological sciences. 95, 4, p. 165-177 13 p.

Research output: Contribution to journalArticle

Open Access
Meteoroids
hypervelocity
Silicates
chondrites
Isotopes

Lithium- and oxygen-isotope compositions of chondrule constituents in the Allende meteorite

Kunihiro, T., Ota, T. & Nakamura, E., May 1 2019, In : Geochimica et Cosmochimica Acta. 252, p. 107-125 19 p.

Research output: Contribution to journalArticle

Oxygen Isotopes
Allende meteorite
Meteorites
chondrule
lithium
2018
1 Citation (Scopus)
freeze drying
Drying
Water
water
Sublimation
4 Citations (Scopus)

Oxygen isotopes of chondritic components

Yurimoto, H., Krot, A. N., Choi, B. G., Aleon, J., Kunihiro, T. & Brearley, A. J., Nov 15 2018, Oxygen in the Solar System. De Gruyter Mouton, p. 141-186 46 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

chondrule
oxygen isotope
oxygen
isotopic composition
matrix
2014
3 Citations (Scopus)
software
Personal computers
Systems analysis
Rocks
thin section

地球惑星試料デポジトリDREAM の構想と現状

Kunihiro, T., 2014, In : 宇宙科学情報解析論文誌. 3, p. 71-77 7 p.

Research output: Contribution to journalArticle

2012
58 Citations (Scopus)

Space environment of an asteroid preserved on micrograins returned by the Hayabusa spacecraft

Nakamura, E., Makishima, A., Moriguti, T., Kobayashi, K., Tanaka, R., Kunihiro, T., Tsujimori, T., Sakaguchi, C., Kitagawa, H., Ota, T., Yachi, Y., Yada, T., Abe, M., Fujimura, A., Ueno, M., Mukai, T., Yoshikawa, M. & Kawaguchi, J., Mar 13 2012, In : Proceedings of the National Academy of Sciences of the United States of America. 109, 11

Research output: Contribution to journalArticle

Minor Planets
Spacecraft
Hypogravity
Planetary Evolution
Meteoroids
2011
31 Citations (Scopus)

Melt inclusion Pb-isotope analysis by LA-MC-ICPMS: Assessment of analytical performance and application to OIB genesis

Paul, B., Woodhead, J. D., Hergt, J., Danyushevsky, L., Kunihiro, T. & Nakamura, E., Oct 23 2011, In : Chemical Geology. 289, 3-4, p. 210-223 14 p.

Research output: Contribution to journalArticle

melt inclusion
ocean island basalt
Isotopes
isotope
seamount
195 Citations (Scopus)

The oxygen isotopic composition of the sun inferred from captured solar wind

McKeegan, K. D., Kallio, A. P. A., Heber, V. S., Jarzebinski, G., Mao, P. H., Coath, C. D., Kunihiro, T., Wiens, R. C., Nordholt, J. E., Moses, R. W., Reisenfeld, D. B., Jurewicz, A. J. G. & Burnett, D. S., Jun 24 2011, In : Science. 332, 6037, p. 1528-1532 5 p.

Research output: Contribution to journalArticle

Solar System
Oxygen
Oxygen Isotopes
Meteoroids
United States National Aeronautics and Space Administration
13 Citations (Scopus)

Elemental and isotopic abundances of lithium in chondrule constituents in the Allende meteorite

Maruyama, S., Watanabe, M., Kunihiro, T. & Nakamura, E., Feb 1 2009, In : Geochimica et Cosmochimica Acta. 73, 3, p. 778-793 16 p.

Research output: Contribution to journalArticle

Allende meteorite
Meteorites
chondrule
lithium
Lithium

Oxygen Isotopes in a Genesis Concentrator Sample

Kunihiro, T., 2009, In : 40th Lunar and Planetary Science Conference. 40, p. 2494-2494 1 p.

Research output: Contribution to journalArticle

2008
29 Citations (Scopus)
Boron
tourmaline
boron
Isotopes
lithosphere
11 Citations (Scopus)

MegaSIMS: a SIMS/AMS hybrid for measurement of the Sun's oxygen isotopic composition

Mao, P. H., Burnett, D. S., Coath, C. D., Jarzebinski, G., Kunihiro, T. & McKeegan, K. D., Dec 15 2008, In : Applied Surface Science. 255, 4, p. 1461-1464 4 p.

Research output: Contribution to journalArticle

Mass spectrometers
Sun
Particle accelerators
Ions
Oxygen
86 Citations (Scopus)

Oxygen isotopes of chondritic components

Yurimoto, H., Krot, A. N., Choi, B. G., Aléon, J., Kunihiro, T. & Brearley, A. J., 2008, In : Reviews in Mineralogy and Geochemistry. 68, p. 141-186 46 p.

Research output: Contribution to journalArticle

Oxygen Isotopes
chondrule
oxygen isotope
Refractory materials
Oxygen
2007

小惑星を加熱した消滅核種

Kunihiro, T., 2007, In : 遊・星・人. 16, (2), p. 151-157 7 p.

Research output: Contribution to journalArticle

2005
7 Citations (Scopus)

Carbon-rich chondritic clast PV1 from the Plainview H-chondrite regolith breccia: Formation from H3 chondrite material by possible cometary impact

Rubin, A. E., Trigo-Rodriguez, J. M., Kunihiro, T., Kallemeyn, G. W. & Wasson, J. T., Jul 1 2005, In : Geochimica et Cosmochimica Acta. 69, 13, p. 3419-3430 12 p.

Research output: Contribution to journalArticle

regolith
breccia
chondrite
clast
Silicates
32 Citations (Scopus)

Microscopic oxygen isotopic homogeneity/heterogeneity in the matrix of the Vigarano CV3 chondrite

Kunihiro, T., Nagashima, K. & Yurimoto, H., Feb 1 2005, In : Geochimica et Cosmochimica Acta. 69, 3, p. 763-773 11 p.

Research output: Contribution to journalArticle

chondrite
homogeneity
Oxygen Isotopes
Ions
Oxygen
30 Citations (Scopus)

Oxygen-isotopic compositions of low-FeO relicts in high-FeO host chondrules in Acfer 094, a type 3.0 carbonaceous chondrite closely related to CM

Kunihiro, T., Rubin, A. E. & Wasson, J. T., Aug 1 2005, In : Geochimica et Cosmochimica Acta. 69, 15, p. 3831-3840 10 p.

Research output: Contribution to journalArticle

chondrule
carbonaceous chondrite
Carbon Monoxide
chondrite
isotopic composition
2004
91 Citations (Scopus)

Initial 26Al/27Al in carbonaceous-chondrite chondrules: Too little 26Al to melt asteroids

Kunihiro, T., Rubin, A. E., McKeegan, K. D. & Wasson, J. T., Jul 1 2004, In : Geochimica et Cosmochimica Acta. 68, 13, p. 2947-2957 11 p.

Research output: Contribution to journalArticle

Asteroids
chondrule
carbonaceous chondrite
asteroid
chondrite
40 Citations (Scopus)

Oxygen-isotopic compositions of relict and host grains in chondrules in the Yamato 81020 CO3.0 chondrite

Kunihiro, T., Rubin, A. E., McKeegan, K. D. & Wasson, J. T., Sep 1 2004, In : Geochimica et Cosmochimica Acta. 68, 17, p. 3599-3606 8 p.

Research output: Contribution to journalArticle

chondrule
chondrite
isotopic composition
Oxygen
oxygen
2003
21 Citations (Scopus)

Dark current reduction in stacked-type CMOS-APS for charged particle imaging

Kunihiro, T., 2003, In : IEEE Trans. Electron Devices. 50, p. 70-76 7 p.

Research output: Contribution to journalArticle

65 Citations (Scopus)

High precision isotope micro-imaging of materials

Yurimoto, H., Nagashima, K. & Kunihiro, T., Jan 15 2003, In : Applied Surface Science. 203-204, p. 793-797 5 p.

Research output: Contribution to journalArticle

isotope ratios
Isotopes
secondary ion mass spectrometry
isotopes
Secondary ion mass spectrometry
2001
2 Citations (Scopus)

A low dark current stacked CMOS-APS for charged particle imaging

Takayanagi, I., Nakamura, J., Eid, E. S., Fossum, E. R., Nagashima, K., Kunihiro, T. & Yurimoto, H., 2001, Technical Digest - International Electron Devices Meeting. p. 551-554 4 p.

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

Dark currents
Charged particles
Pixels
Imaging techniques
Sensors
10 Citations (Scopus)

Noise characteristics of stacked CMOS active pixel sensor for charged particles

Kunihiro, T., Nagashima, K., Takayanagi, I., Nakamura, J., Kosaka, K. & Yurimoto, H., Sep 11 2001, In : Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 470, 3, p. 512-519 8 p.

Research output: Contribution to journalArticle

Charged particles
CMOS
charged particles
Pixels
pixels
11 Citations (Scopus)

Output characteristics of stacked CMOS-type active pixel sensor for charged particles

Nagashima, K., Kunihiro, T., Takayanagi, I., Nakamura, J., Kosaka, K. & Yurimoto, H., Feb 2001, In : Surface and Interface Analysis. 31, 2, p. 131-137 7 p.

Research output: Contribution to journalArticle

Charged particles
CMOS
charged particles
Pixels
pixels