HH

Hiromasa Hirakawa

HI Hitachi: 10 patents #4,206 of 28,497Top 15%
HC Hitachi Engineering Co.: 4 patents #38 of 572Top 7%
Overall (All Time): #527,696 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
5304261 Method of fabricating a channel box or other part for a nuclear reactor Nobukazu Yamamoto, Kouichi Matsumoto, Junjiro Nakajima, Hideo Maki, Masahisa Inagaki +4 more 1994-04-19
5297177 Fuel assembly, components thereof and method of manufacture Masahisa Inagaki, Masayoshi Kanno, Hideaki Ishizaki, Nobukazu Yamamoto, Hideo Maki +3 more 1994-03-22
5265139 Fuel assembly Yoshihiko Yanagi, Junjiro Nakajima, Kenji Kanamori, Hajime Umehara, Yasuhiro Aizawa +2 more 1993-11-23
5176877 Nuclear fuel assembly and nuclear reactor core containing said assembly Akinobu Nakajima, Yasunori Bessho, Motoo Aoyama, Junichi Koyama, Junichi Yamashita +1 more 1993-01-05
5164153 Control rod assembly for a boiling water reactor Takashi Fukumoto, Norio Kawashima, Yasuhiro Aizawa, Hideaki Ishizaki 1992-11-17
5106575 Nuclear fuel assemblies Shozo Nakamura, Tadashi Mizuno, Tetsuo Yasuda, Akira Maru, Yoshishige Kawada +4 more 1992-04-21
4926450 Fuel assembly Yasuhiro Masuhara, Soamu Yokomizo, Kotaro Inoue, Sadao Uchikawa, Motoo Aoyama +3 more 1990-05-15
4914679 Fuel assembly Akio Tomiyama, Osamu Yokomizo, Yasuhiro Masuhara, Toshitsugu Nakao, Shin-ichi Kashiwai +2 more 1990-04-03
4686079 Fuel assembly Toshimitsu Ishikawa, Mishihiro Ozawa, Mikio Sakurai, Mutsuo Konno, Yasuhiro Aizawa +1 more 1987-08-11
4318777 Apparatus for detecting failure of the nuclear fuel rod Takeshi Sujumura, Shozo Saito, Takashi Saito 1982-03-09