Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6476338 | Vacuum switch | Tetsu Shioiri, Kunio Yokokura | 2002-11-05 |
| 6346683 | Vacuum interrupter and vacuum switch thereof | Tsutomu Okutomi, Takashi Kusano, Mitsutaka Homma, Atsushi Yamamoto, Takanobu Nishimura | 2002-02-12 |
| 6210809 | Contact material | Tsutomu Okutomi, Atsushi Yamamoto, Tsuneyo Seki, Mitsutaka Homma, Takashi Kusano | 2001-04-03 |
| 6080952 | Electrode arrangement of vacuum circuit breaker with magnetic member for longitudinal magnetization | Tsutomu Okutomi, Tsuneyo Seki, Mitsutaka Homma, Hiromichi Somei, Kumi Uchiyama +2 more | 2000-06-27 |
| 5610958 | Reactor circulating pump system | Kunio Shimano, Youichi Nakamura, Osamu Ozaki | 1997-03-11 |
| 5410574 | Internal component of fusion reactor | Hiroshi Masumoto, Tsutomu Honda, Nobuo Tachikawa, Takashi Ishitori, Nobuhiko Tanaka +1 more | 1995-04-25 |
| 5202104 | Process for preparing silica having a low silanol content | Naotake Watanabe, Koichi Orii, Junsuke Yagi | 1993-04-13 |
| 5154905 | Method for producing unsintered cristobalite particles | Koichi Orii, Naotake Watanabe, Yasumasa Yamaguchi | 1992-10-13 |
| 4853198 | Process for producing unsintered cristobalite silica | Koichi Orii, Naotake Watanabe | 1989-08-01 |
| 4683128 | Process for manufacturing high purity silica | Koichi Orii, Masashi Nishida, Junsuke Yagi | 1987-07-28 |
| 4607958 | Apparatus for stirring hydrogel particles of water-soluble polymer | Takeshi Narita, Ryoji Handa, Jun Hosoda | 1986-08-26 |
| 4587543 | Method and device for detecting metal ions | Ryoichi Ohtani | 1986-05-06 |
| 4362890 | Process for the preparation of unsaturated quaternary ammonium salts | Yasutaka Nakashima | 1982-12-07 |
| 4297873 | Plugging device | Hiromichi Nei, Ryoichi Ohtani, Yuji Horikawa | 1981-11-03 |
| 4274280 | Plugging indicator | Hiromichi Nei, Ryoichi Ohtani, Yuji Horikawa | 1981-06-23 |
| 4259666 | Apparatus for detecting degradation of characteristics of arresters | Shigeru Takahashi, Masaki Honda, Mizuho Yamashita | 1981-03-31 |
| 4247437 | Method for cooling polymeric hydrogel blocks | Yasutaka Nakashima | 1981-01-27 |
| 4232352 | Protective gap devices for protecting circuit breakers | Shinichi Menju, Shigeru Takahashi | 1980-11-04 |