Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5612523 | Vacuum circuit-breaker and electrode assembly therefor and a manufacturing method thereof | Yoshimi Hakamata, Toru Tanimizu, Akira Osaka | 1997-03-18 |
| 5594224 | Vacuum circuit interrupter | Toru Tanimizu, Yoshimi Hakamata, Masato Kobayashi, Akira Osaka | 1997-01-14 |
| 5589652 | Ceramic-particle-dispersed metallic member, manufacturing method of same and use of same | Toshiaki Arato, Yasuhisa Aono, Shigeo Tsuruoka | 1996-12-31 |
| 5557083 | Vacuum circuit breaker and electric contact | Yoshitaka Kojima, Yukio Kurosawa, Yoshio Koguchi, Toru Tanimizu, Yoshimi Hakamata +1 more | 1996-09-17 |
| 5364248 | Sliding member, a method for producing same, and usages of same | Shoichi Nakashima, Yukiko Fukaya, Tadashi Iizuka | 1994-11-15 |
| 4383970 | Process for preparation of graphite-containing aluminum alloys | Masateru Suwa, Koh Soeno, Masato Ohsawa | 1983-05-17 |
| 4207096 | Method of producing graphite-containing copper alloys | Masateru Suwa | 1980-06-10 |