IS

Isao Sumida

HI Hitachi: 9 patents #4,653 of 28,497Top 20%
HC Hitachi Chemical Company: 1 patents #1,071 of 1,946Top 60%
HC Hitachi Engineering Co.: 1 patents #187 of 572Top 35%
Overall (All Time): #591,571 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5295169 Reactor containment facilities Kenji Tominaga, Tetsuo Horiuchi, Tsuyoshi Niino, Shouichiro Kinoshita, Shozo Yamanari +5 more 1994-03-15
5272737 Nuclear reactor installation Tadashi Fujii, Yoshiyuki Kataoka, Tohru Fukui, Masataka Hidaka, Toshitsugu Nakao +5 more 1993-12-21
5217680 Liquid filling method for a high-temperature and high-pressure vessel and apparatus therefor Masato Koshiishi, Shouichirou Kinoshita, Minoru Akita 1993-06-08
5211906 Reactor containment vessel Shigeo Hatamiya, Masanori Naitoh, Yoshiyuki Kataoka, Hiroaki Suzuki, Toshitsugu Nakao +5 more 1993-05-18
5120490 Liquid filling method for a high-temperature and high-pressure vessel and apparatus therefor Masato Koshiishi, Shouichirou Kinoshita, Minoru Akita 1992-06-09
5021212 Primary containment vessel with outer pool Yoshiyuki Kataoka, Masataka Hidaka, Masanori Naitoh 1991-06-04
4879087 Nuclear power plant Takao Akiyama, Tetsuo Ito 1989-11-07
4877574 Method of and apparatus for controlling power of natural circulation reactor Hiroaki Suzuki, Yoshiyuki Kataoka, Michio Murase, Kotaro Inoue, Shozo Yamanari +3 more 1989-10-31
4440151 Solar heat collector Takanobu Yamamoto, Moriaki Tsukamoto, Kazutake Imani, Naohisa Watahiki 1984-04-03