KO

Keizou Ohtsuka

HI Hitachi: 10 patents #4,206 of 28,497Top 15%
BA Babcock-Hitachi: 2 patents #128 of 415Top 35%
Overall (All Time): #527,357 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
5563003 Fuel cell and supplementary electrolyte container and method for supplementing fuel cell with electrolyte Hiroaki Suzuki, Toshiki Kahara, Tadashi Yoshida 1996-10-08
5213909 Insulated fuel cell Sei Takashima, Toshiki Kahara, Yasutaka Komatsu 1993-05-25
5212022 Internal-reforming fuel cells and power stations using the same Tsutomu Takahashi, Toshiki Kahara, Yasutaka Komatsu 1993-05-18
4902587 Fuel cell Toshihiro Saitoh, Shuhei Yamaguchi, Toshiki Kahara 1990-02-20
4781996 Fuel cell Hajime Toriya, Akio Sohma 1988-11-01
4741279 Method of and apparatus for combusting coal-water mixture Shigeru Azuhata, Kazutoshi Higashiyama, Kiyoshi Narato, Hironobu Kobayashi, Norio Arashi +7 more 1988-05-03
4653998 Furnace system Ken-ichi Sohma, Norio Arashi, Shigeru Azuhata, Kiyoshi Narato, Tooru Inada +2 more 1987-03-31
4515094 Fuel jet method and apparatus for pulverized coal burner Shigeru Azuhata, Norio Arashi, Kiyoshi Narato, Tooru Inada, Kenichi Souma +2 more 1985-05-07
4436699 Monitoring system for checking electric rotary machine for local overheating Kiyoshi Narato, Tooru Inada, Takashi Watanabe 1984-03-13
4364032 Method and apparatus for diagnosing local overheating in a rotary electric machine Kiyoshi Narato, Sadahiko Niwa 1982-12-14