Hisao Kobayashi

(小林寿夫)

Profile Information

Affiliation: Graduate School of Science, University of Hyogo

Degree: Ph.D. Science(Mar, 1988, Tohoku University)

J-GLOBAL ID: 201801006388867430
researchmap Member ID: B000341131

Research Areas

Natural sciences / Magnetism, superconductivity, and strongly correlated systems /

Research History

Apr, 2007 - Present

Professor, Graduate School of Material Science, University of Hyogo

Awards

1998

原田研究奨励賞, (財)金属研究助成会

小林寿夫

Papers

142

Magnetic properties and lattice dynamics in non-doped and Si-doped type-I clathrate Eu8Ga16Ge30 studied by 151Eu Mossbauer effect and magnetic circular dichroism

S. Tsutsui, Y. Kobayashi, M. Mizumaki, N. Kawamura, M.K. Kubo, S. Ikeda, H. Kobayashi, Y. Yoda, T. Onimaru, M.A. Avila, T. Takabatake

J. Phys. Soc. Jpn., 93 084702, 2024 Peer-reviewed
Effects of Si substitution on ferromagnetic order and off-center rattling of Eu ions in the type-I clathrate Eu8Ga16Ge30

Takahiro Onimaru, Shuhei Yamamoto, Marcos A. Avila, Koichiro Suekuni, Satoshi Tsutsui, Shugo Ikeda, Hisao Kobayashi, Yoshitaka Yoda, Toshiro Takabatake

Journal of Magnetism and Magnetic Materials, 588 171379-171379, Dec, 2023 Peer-reviewed
Observation of a critical charge mode in a strange metal

Hisao Kobayashi, Yui Sakaguchi, Hayato Kitagawa, Momoko Oura, Shugo Ikeda, Kentaro Kuga, Shintaro Suzuki, Satoru Nakatsuji, Ryo Masuda, Yasuhiro Kobayashi, Makoto Seto, Yoshitaka Yoda, Kenji Tamasaku, Yashar Komijani, Premala Chandra, Piers Coleman

Science, 379(6635) 908-911, Mar 3, 2023 Peer-reviewed
Synchrotron-radiation-based 174Yb Mössbauer Spectroscopy of the 1/1 Au-Al-Yb Approximant

Kinoshita, Y., Kobayashi, H., Nagasawa, N., Yoda, Y., Masuda, R., Nakamura, Y., Sakakibara, Y., Deguchi, K.

New Physics: Sae Mulli, 73(12), 2023 Peer-reviewed
161Dy synchrotron-radiation-based Mössbauer absorption spectroscopy

Ryo Masuda, Shinji Kitao, Hiroyuki Tajima, Hiroki Taniguchi, Takaya Mitsui, Kosuke Fujiwara, Yoshitaka Yoda, Nobumoto Nagasawa, Daisuke Ishikawa, Alfred. Q. R. Baron, Takefumi Yoshida, Tetsu Sato, Keiichi Katoh, Hisao Kobayashi, Makoto Seto

Hyperfine Interactions, 243(1), Dec, 2022 Peer-reviewed
Pressure-induced changes of valence fluctuation in beta-YbAlB4 probed by x-ray absorption spectroscopy

Yui Sakaguchi, Shugo Ikeda, Naomi Kawamura, Masaichiro Mizumaki, Kentaro Kuga, Shintaro Suzuki, Keita Sone, Satoru Nakatsuji, Hisao Kobayashi

PHYSICAL REVIEW B, 105(15) 155129-1-155129-8, Apr, 2022 Peer-reviewed
希土類元素に対するエネルギー領域の放射光メスバウアー分光法

増田亮, 北尾真司, 田嶋寛介, 谷口博紀, 三井隆也, 藤原孝将, 依田芳卓, 永澤延元, 石川大介, Baron Alfred. Q, 吉田健文, 佐藤鉄, 加藤恵一, 小林寿夫, 瀬戸誠

アイソトープ・放射線研究発表会, 2 16, 2022
Evaluation of isomer shifts via 57Fe nuclear forward scattering technique with α-Fe under external magnetic field

Shugo Ikeda, Yuu Tsuchiya, Takumi Kikegawa, Hisao Kobayashi

Hyperfine Interactions, 241(1), Dec, 2020 Peer-reviewedLast author
Valence Transition of EuRh2Si2 Studied by Synchrotron Mössbauer Spectroscopy

Akihiro Mitsuda, Hirofumi Wada, Ryo Masuda, Shinji Kitao, Makoto Seto, Yoshitaka Yoda, Hisao Kobayashi

Journal of the Physical Society of Japan, 89(10) 104703-104703, Oct 15, 2020 Peer-reviewedLast author
Magnetic anisotropies of La–Co substituted M-type Sr hexaferrites studied by 57Fe Mössbauer spectroscopy with external magnetic fields

Nobumoto Nagasawa, Momoko Oura, Shugo Ikeda, Takeshi Waki, Yoshikazu Tabata, Hiroyuki Nakamura, Hisao Kobayashi

Journal of Applied Physics, 128(13) 133901-133901, Oct 7, 2020 Peer-reviewedLast author
Multi-Step Magnetic Transitions in EuNiIn4

Shugo Ikeda, Koji Kaneko, Yuki Tanaka, Takuro Kawasaki, Takayasu Hanashima, Koji Munakata, Akiko Nakao, Ryoji Kiyanagi, Takashi Ohhara, Kenji Mochizuki, Akihiro Kondo, Koichi Kindo, Yoshiya Homma, Matthias D. Frontzek, Hisao Kobayashi

Journal of the Physical Society of Japan, 89(1) 014707-014707, Jan 15, 2020 Peer-reviewedLast author
Synchrotron-radiation-based Mössbauer absorption spectroscopy with high resonant energy nuclides

Masuda, R., Kusada, K., Yoshida, T., Michimura, S., Kobayashi, Y., Kitao, S., Tajima, H., Mitsui, T., Kobayashi, H., Kitagawa, H., Seto, M.

Hyperfine Interactions, 240(1), Nov 26, 2019 Peer-reviewed
New antiferromagnetic order with pressure-induced superconductivity in EuFe2As2

Shugo Ikeda, Yuu Tsuchiya, Xiao Wei Zhang, Shunji Kishimoto, Takumi Kikegawa, Yoshitaka Yoda, Hiroki Nakamura, Masahiko Machida, James K. Glasbrenner, Hisao Kobayashi

Physical Review B, 98(10), Sep 18, 2018 Peer-reviewed
Valence fluctuating compound α-YbAlB4 studied by 174Yb Mössbauer spectroscopy and X-ray diffraction using synchrotron radiation

Momoko Oura, Shugo Ikeda, Ryo Masuda, Yasuhiro Kobayashi, Makoto Seto, Yoshitaka Yoda, Naohisa Hirao, Saori I. Kawaguchi, Yasuo Ohishi, Shintaro Suzuki, Kentaro Kuga, Satoru Nakatsuji, Hisao Kobayashi

Physica B: Condensed Matter, 536 162-164, May 1, 2018 Peer-reviewed
57Fe Mössbauer and Co K β x-ray emission spectroscopic investigations of La-Co and la substituted strontium hexaferrite

Momoko Oura, Nobumoto Nagasawa, Shugo Ikeda, Aiko Shimoda, Takeshi Waki, Yoshikazu Tabata, Hiroyuki Nakamura, Nozomu Hiraoka, Hisao Kobayashi

Journal of Applied Physics, 123(3), Jan 21, 2018 Peer-reviewed
Pressure dependence of transverse acoustic phonon energy in ferropericlase across the spin transition

Hiroshi Fukui, Alfred Q. R. Baron, Daisuke Ishikawa, Hiroshi Uchiyama, Yasuo Ohishi, Taku Tsuchiya, Hisao Kobayashi, Takuya Matsuzaki, Takashi Yoshino, Tomoo Katsura

JOURNAL OF PHYSICS-CONDENSED MATTER, 29(24) 245401-245401, Jun, 2017 Peer-reviewed
Pressure-Induced Phase Transition in KxFe2-yS2

Yuu Tsuchiya, Shugo Ikeda, Xiao-Wei Zhang, Shunji Kishimoto, Takumi Kikegawa, Naohisa Hirao, Saori I. Kawaguchi, Yasuo Ohishi, Hisao Kobayashi

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 86(3), Mar, 2017 Peer-reviewed
Electronic States and Local Structure at the Ni ions of YbNiO₃ under High Pressure

Nagasawa N., Kobayashi H., Ikeda S., Kawaguchi S. I., Hirao N., Ohishi Y., Hiraoka N., Alonso J. A., Martinez-Lope M. J., Abd-Elmeguid M. M.

Meeting Abstracts of the Physical Society of Japan, 72 2200-2200, 2017 Peer-reviewed
Charge ordering in Sm4Bi3 under pressure

H. Kobayashi, S. Yamaoka, S. Ikeda, N. Hirao, Y. Ohishi, Y. Yoda, A. Ochiai

JOINT AIRAPT-25TH & EHPRG-53RD INTERNATIONAL CONFERENCE ON HIGH PRESSURE SCIENCE AND TECHNOLOGY, 2015, 950 042035, 2017 Peer-reviewed
Pressure-Induced Local Structural Changes in Heavy Fermion beta-YbAlB4

Yui Sakaguchi, Shugo Ikeda, Kentaro Kuga, Shintaro Suzuki, Satoru Nakatsuji, Naohisa Hirao, Yasuo Ohishi, Hisao Kobayashi

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 85(2), Mar, 2016 Peer-reviewed
Single-crystalline M-type Sr Hexaferrites studied by Fe-57 Mossbauer spectroscopy

Nobumoto Nagasawa, Shugo Ikeda, Aiko Shimoda, Takeshi Waki, Yoshikazu Tabata, Hiroyuki Nakamura, Hisao Kobayashi

HYPERFINE INTERACTIONS, 237, Feb, 2016 Peer-reviewed
Fe-57 Mossbauer spectroscopic studies of single-crystalline KxFe2-yS2 and KxFe2-ySe2

Yuu Tsuchiya, Shugo Ikeda, Hisao Kobayashi

HYPERFINE INTERACTIONS, 237, Feb, 2016 Peer-reviewed
21aPS-65 X-ray Crystal Structure Analysis of YbNiO_3 under High Pressure

Nagasawa N., Oura M., Ikeda S., Hirao N., Ohishi Y., Hiraoka N., Alonso J. A., Martinez-Lope M. J., Abd-Elmeguid M. M., Kobayashi H.

Meeting Abstracts of the Physical Society of Japan, 71 2259-2259, 2016
22aBQ-6 Pressure-induced phase transition in K_xFe_<2-y>S_2

Tsuchiya Y., Ikeda S., Kishimoto S., Kikegawa T., Hirao N., Imada S., Ohishi N., Kobayashi H.

Meeting Abstracts of the Physical Society of Japan, 71 2387-2387, 2016
21aPS-19 Electronic properties of EuFe_2As_2 studied nuclear resonant forward scattering

Ikeda S., Tuchiya Y., Yoda Y., Zhang X., Kishimoto S., Kikegawa T., Kobayashi H.

Meeting Abstracts of the Physical Society of Japan, 71 2216-2216, 2016
Pressure Dependence of Valence States of Nickel in YbNiO₃ Studeied by PFY-XAS

Nagasawa N., Oura M., Ikeda S., Hiraoka N., Alonso J. A., Martinez-Lope M. J., Abd-Elmeguid M. M., Kobayashi H.

Meeting Abstracts of the Physical Society of Japan, 71 2292-2292, 2016
Pressure-induced unusual metallic state in EuNiO3

Hisao Kobayashi, Shugo Ikeda, Yoshitaka Yoda, Naohisa Hirao, Yasuo Ohishi, J. A. Alonso, M. J. Martinez-Lope, R. Lengsdorf, D. I. Khomskii, M. M. Abd-Elmeguid

Physical Review B - Condensed Matter and Materials Physics, 91(19), May 28, 2015 Peer-reviewed
Pressure-induced unusual metallic state in EuNiO3

Hisao Kobayashi, Shugo Ikeda, Yoshitaka Yoda, Naohisa Hirao, Yasuo Ohishi, J. A. Alonso, M. J. Martinez-Lope, R. Lengsdorf, D. I. Khomskii, M. M. Abd-Elmeguid

PHYSICAL REVIEW B, 91(19), May, 2015 Peer-reviewed
19aPS-48 Magnetism and superconductivity in AFe_2As_2 (A: Sr, Eu)

Ikeda S., Tuchiya Y., Yoda Y., Zhang X., Kishimoto S., Kikegawa T., Kobayashi H.

Meeting Abstracts of the Physical Society of Japan, 70 2141-2141, 2015
19aPS-28 Single crystal growth and physical properties of (Sr,K)Fe_2As_2

Nakamura A., Ikeda S., Kobayashi H.

Meeting Abstracts of the Physical Society of Japan, 70 2122-2122, 2015
24aPS-53 Single crystal growth and physical properties of K_xFe_<2-y>Se_2

Tsuchiya Y., Ikeda S., Kobayashi H.

Meeting Abstracts of the Physical Society of Japan, 70 2404-2404, 2015
21pBA-4 Electronic property of EuFe_2As_2 studied by ^<57>Fe nuclear resonant forward scattering

Ikeda S., Tuchiya Y., Yoda Y., Zhang X., Kishimoto S., Kikegawa T., Kobayashi H.

Meeting Abstracts of the Physical Society of Japan, 70 1990-1990, 2015
Pressure-induced change of the electronic state in the tetragonal phase of CaFe2As2

Yui Sakaguchi, Shugo Ikeda, Tetsuji Kuse, Hisao Kobayashi

JOURNAL OF PHYSICS-CONDENSED MATTER, 26(29) 295702-295702, Jul, 2014 Peer-reviewed
Charge Density Wave Accompanied by Spin Density Wave in Mn3Si

Shoichi Tomiyoshi, Hiroyuki Ohsumi, Hisao Kobayashi, Akiji Yamamoto

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 83(4), Apr, 2014 Peer-reviewed
Sm atomic dynamics in a charge density wave compound SmNiC2

Satoshi Tsutsui, Susumu Shimomura, Yoshitaka Yoda, Hisao Kobayashi, Hideya Onodera

HYPERFINE INTERACTIONS, 226(1-3) 637-642, Apr, 2014 Peer-reviewed
La-Ni substituted M-type Sr hexaferrite studied by 57Fe Mï¿½ssbauer spectroscopy

N. Nagasawa, S. Ikeda, A. Shimoda, T. Waki, Y. Tabata, H. Nakamura, H. Kobayashi

Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, 61(S1) S266-S269, 2014 Peer-reviewed
Structural and magnetic properties of alpha-Yb(Al1-xFex)B4 under hydrostatic pressure

Y. Sakaguchi, S. Ikeda, K. Kuga, S. Nakatsuji, N. Hirao, Y. Ohishi, H. Kobayashi

JPS Conf. Proc., 3 11059, 2014 Peer-reviewed
Mossbauer spectroscopic studies of NdFe2Al10

A. Yasuda, Y. Sakaguchi, S. Ikeda, M. Nakamura, H. Nohara, H. Tanida, M. Sera, H. Kobayashi

JPS Conf. Proc., 3 12027, 2014 Peer-reviewed
Single crystal growth and magnetic properties of EuTIn4 (T: Ni and Pd)

S. Ikeda, Y. Tanaka, H. Kobayashi

JPS Conf. Proc., 3 01402, 2014 Peer-reviewed
Nuclear Resonant Scattering and Mossbauer Spectroscopy under High Pressure Using Synchrotron Radiation -Current Statuses and Future Prospects-

KOBAYASHI Hisao

The Review of High Pressure Science and Technology, 23(3) 260-267, Aug 20, 2013

The nuclear resonant scattering and Mössbauer spectroscopy are going to be the experimental technique to investigate the element-specific electronic and vibrational properties in materials under multi-extreme conditions by using synchrotron radiation as an excitation source for a Mössbauer isotope. In this article, I introduced the basic principles of nuclear resonant scattering and Mössbauer spectroscopy and reviewed these current statuses in material science. Finally, I described future prospects of these methods using shorter-pulsed structure and higher-brilliance Xrays from new-generation synchrotron radiation facilities.<br>
Mossbauer spectroscopy of Fe-doped valence-fluctuating alpha-YbAlB4

Yui Sakaguchi, Shugo Ikeda, Hisao Kobayashi, Kentaro Kuga, Keita Sone, Satoru Nakatsuji

JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 62(12) 2146-2149, Jul, 2013 Peer-reviewed
Note: Improved sensitivity of magnetic measurements under high pressure in miniature ceramic anvil cell for a commercial SQUID magnetometer

Naoyuki Tateiwa, Yoshinori Haga, Tatsuma D. Matsuda, Zachary Fisk, Shugo Ikeda, Hisao Kobayashi

REVIEW OF SCIENTIFIC INSTRUMENTS, 84(4) 046105-046105, Apr, 2013 Peer-reviewed
Observation of a pressure-induced As-As hybridization associated with a change in the electronic state of Fe in the tetragonal phase of EuFe2As2

Hisao Kobayashi, Shugo Ikeda, Yui Sakaguchi, Yoshitaka Yoda, Hiroki Nakamura, Masahiko Machida

JOURNAL OF PHYSICS-CONDENSED MATTER, 25(2) 022201-022201, Jan, 2013 Peer-reviewed
149Sm and 57Fe nuclear resonant inelastic scattering of filled skutterudites SmFe4X12 (X: Pnictogen)

S. Tsutsui, H. Kobayashi, Y. Yoda, H. Sugawara, C. Sekine, T. Namiki, I. Shirotani, H. Sato

Hyperfine Interactions, 206(1-3) 67-70, Mar, 2012 Peer-reviewed
Electronic property of SrFe2As2 under high pressure studied by Fe-57 Mossbauer spectroscopy

Shugo Ikeda, Kazuki Yoshida, Hisao Kobayashi

HYPERFINE INTERACTIONS, 208(1-3) 7-11, Mar, 2012 Peer-reviewed
Magnetic Interactions on Single-Crystal EuFe2As2 Studied by Fe-57 Mossbauer Spectroscopy

Shugo Ikeda, Kazuki Yoshida, Hisao Kobayashi

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 81(3), Mar, 2012 Peer-reviewed
Sm-149 and Fe-57 nuclear resonant inelastic scattering of filled skutterudites SmFe4X12 (X: pnictogen)

Satoshi Tsutsui, Hisao Kobayashi, Yoshitaka Yoda, Hitoshi Sugawara, Chihiro Sekine, Takahiro Namiki, Ichimin Shirotani, Hideyuki Sato

HYPERFINE INTERACTIONS, 206(1-3) 67-70, Mar, 2012 Peer-reviewed
Upgrade of the nuclear resonant scattering beamline, BL09XU in SPring-8

Yoshitaka Yoda, Yasuhiko Imai, Hisao Kobayashi, Syunji Goto, Kunikazu Takeshita, Makoto Seto

HYPERFINE INTERACTIONS, 206(1-3) 83-86, Mar, 2012 Peer-reviewed
Orthorhombic fluctuations in tetragonal AFe(2)As(2) (A = Sr and Eu)

Hisao Kobayashi, Shugo Ikeda, Yoshitaka Yoda, Hiroki Nakamura, Masahiko Machida

PHYSICAL REVIEW B, 84(18), Nov, 2011 Peer-reviewed
HIP synthesis of eta-carbide-type nitrides Fe3W3N and Fe6W6N and their magnetic properties

T. Waki, S. Terazawa, Y. Tabata, Y. Murase, M. Kato, K. Hirota, S. Ikeda, H. Kobayashi, K. Sato, K. Kindo, H. Nakamura

JOURNAL OF ALLOYS AND COMPOUNDS, 509(39) 9451-9455, Sep, 2011 Peer-reviewed

Misc.

165

価数揺動系物質 Au-Al-Yb の準結晶と近似結晶のメスバウアー分光法による電子状態の解明

木下勇海, 永澤延元, 増田亮, 依田芳卓, 中村優貴, 榊原裕也, 米山祐樹, 出口和彦, 小林寿夫

日本物理学会講演概要集, Mar, 2024
Synchrotron-radiation-based ¹⁷⁴Yb Moessbauer Spectroscopy under high pressure of the valence-fluctuating Au-Al-Yb 1/1 Approximant: II

木下勇海, 永澤延元, 池田修悟, 河智史朗, 増田亮, 依田芳卓, 中村優貴, 榊原祐弥, 米山祐樹, 横尾恭真, 金井辰也, 出口和彦, 小林寿夫

日本物理学会講演概要集(CD-ROM), 79(1), 2024
Magnetism and superconductivity in the iron-based ladder compound studied by ⁵⁷Fe nuclear resonance forward scattering under pressure

池田修悟, 岩本遥貴, 河智史朗, 青山拓也, 大串研也, 小林寿夫

日本物理学会講演概要集(CD-ROM), 79(2), 2024
Conductivity measurements of the Fe-based superconductor EuFe₂As₂ in magnetic fields

齋藤一輝, 脇舎和平, 中村光輝, 吉澤正人, 池田修悟, 小林寿夫, 中西良樹

日本物理学会講演概要集(CD-ROM), 79(2), 2024
核共鳴前方散乱実験による鉄系超伝導体の圧力下軌道秩序相の観測

池田修悟, 河智史郎, 小林寿夫

高圧討論会, Oct, 2023

Books and Other Publications

物質科学の世界

小林寿夫 (Role: Joint author, ５章)

共立出版, 2010
放射光Ｘ線磁気分光と散乱

小林寿夫 (Role: Joint author, １２章)

(株)アイピーシー, 2007

Presentations

Wear and Debris Formation of Engineering Plastics by in-situ Observations of the Friction Interfaces Using Borosilicate Glass Plate

Yoshiyuki Sugai, Syogo Ikeda, Hiroshi Kinoshita, Hisao Kobayashi

International Tribology Conference
Investigation of Friction Coefficients of Engineering Plastic Materials as a Function of Temperature and Load Using Ring-on-plate Type Tribometer in Dry Lubrication

S. Ikeda, Y. Sugai, H. Kinoshita, H. Kobayashi
Observation of a critical charge mode in a strange metal.

Hisao Kobayashi, Yui Sakaguchi, Hayato Kitagawa, Momoko Oura, Shugo Ikeda, Kentaro Kuga, Shintaro Suzuki, Satoru Nakatsuji, Ryo Masuda, Yasuhiro Kobayashi, Makoto Seto, Yoshitaka Yoda, Kenji Tamasaku, Yashar Komijani, Premala Chandra, Piers Coleman

The International Conference on Strongly Correlated Electron Systems Invited
Synchrotron-radiation-based 174Yb Mössbauer Spectroscopy of the 1/1 Au-Al-Yb Approximant

Y. Kinoshita, N. Nagasawa, Y. Yoda, R. Masuda, Y. Nakamura, Y. Sakakibara, K. Deguchi, H. Kobayashi

Strongly Correlated Electron Systems
Synchrotron-Radiation-based 174Yb Mossbauer spectroscopic studies on valence fluctuating YbAlB4

Hisao Kobayashi

Inter. Workshop: Novel Phenomena in Quantum Materials driven by Multipoles and Topology, Apr, 2018 Invited

Research Projects

低温・高圧力下鉄系超伝導体の軌道・スピン秩序の直接観測による超伝導発現機構の研究

科学研究費助成事業基盤研究(C), 日本学術振興会, Apr, 2023 - Mar, 2026

小林寿夫
Development of innovative magnetic materials via active site-selective substitution in hexagonal ferrites as multi-site compounds

Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A), Japan Society for the Promotion of Science, Apr, 2022 - Mar, 2026
放射光メスバウアー分光法を用いた価数不安定性を持つ準結晶の基底状態の研究

科学研究費助成事業新学術領域研究(研究領域提案型), 日本学術振興会, Apr, 2022 - Mar, 2024

小林寿夫
Correlation effect between localized multipoles and conduction electrons

Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area), Japan Society for the Promotion of Science, Jun, 2015 - Mar, 2020

Nakatsuji Satoru
Dynamics of valence fluctuation in quantum criticalities for Yb valence fluctuation compounds

Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C), Japan Society for the Promotion of Science, Apr, 2015 - Mar, 2018

Kobayashi Hisao, NAKATSUJI Satoru

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