Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4941251 | Rollers for rolling mills | Masahisa Sobue, Sensuke Okada, Kimihiko Akahori, Toshimi Sasaki, Toshiyuki Kajiwara +2 more | 1990-07-17 |
| 4839949 | Rollers for rolling mills | Masahisa Sobue, Sensuke Okada, Kimihiko Akahori, Toshimi Sasaki, Toshiyuki Kajiwara +2 more | 1989-06-20 |
| 4689091 | Process for producing zirconium-based alloy | Toshimi Yoshida, Hideo Maki, Hajime Umehara, Tetsuo Yasuda, Isao Masaoka +3 more | 1987-08-25 |
| 4678521 | Process for producing zirconium-based alloy and the product thereof | Toshimi Yoshida, Hideo Maki, Hajime Umehara, Tetsuo Yasuda, Isao Masaoka +3 more | 1987-07-07 |
| 4664727 | Zirconium alloy having superior corrosion resistance | Masahisa Inagaki, Ryutaro Jinbo, Isao Masaoka, Hideo Maki | 1987-05-12 |
| 4551596 | Surge-absorberless vacuum circuit interrupter | Ryuji Watanabe, Hisashi Ando, Yukio Kurosawa | 1985-11-05 |
| 4547639 | Vacuum circuit breaker | Ryuji Watanabe, Kiyoji Iwashita, Sadami Tomita, Hideaki Tsuda | 1985-10-15 |
| 4497875 | Ceramic substrate with metal plate | Hideo Arakawa, Akio Chiba, Seiki Shimizu | 1985-02-05 |
| 4482912 | Stacked structure having matrix-fibered composite layers and a metal layer | Akio Chiba, Seiki Shimizu, Jin Onuki | 1984-11-13 |
| 4478363 | Method of production of composite billet for fuel cladding tube | Hiromichi Imahashi, Shigeo Turuoka, Tomio Iizuka, Akira Kawahara | 1984-10-23 |
| 4470063 | Copper matrix electrode having carbon fibers therein | Hideo Arakawa, Takashi Namekawa, Masabumi Ohashi | 1984-09-04 |
| 4347413 | Electrodes of vacuum circuit breaker | Ryuji Watanabe | 1982-08-31 |
| 4254548 | Method of fabricating electrode plate for supporting semiconductor device | Hideo Arakawa, Masabumi Ohashi | 1981-03-10 |
| 4253038 | Light source excited by high frequency for Zeeman effect atomic absorption analysis | Akira Hosoya, Kunihiro Maeda, Sadami Tomita, Kohnosuke Ohishi | 1981-02-24 |
| 4231814 | Method of producing a vacuum circuit breaker | Ryuji Watanabe, Hideo Arakawa | 1980-11-04 |
| 4229631 | Vacuum-type circuit breaker | Hideo Arakawa, Takashi Namekawa, Hiroyuki Sugawara | 1980-10-21 |
| 4226917 | Composite joint system including composite structure of carbon fibers embedded in copper matrix | Masao Tsuruoka, Hideyuki Yagi, Keiichi Morita | 1980-10-07 |
| 4196442 | Semiconductor device | Hideo Arakawa, Kunihiro Maeda, Keiichi Morita | 1980-04-01 |