Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8502415 | Uninterrupted power supply unit | Masaki Yamada, Akihiko Iwata | 2013-08-06 |
| 7964990 | Power supply apparatus | Masaki Yamada, Akihiko Iwata | 2011-06-21 |
| 7034515 | Instantaneous voltage lowering detection device | Yasufumi Shimoe | 2006-04-25 |
| 6423808 | Ethylene-&agr;-olefin copolymer and composition, and film, laminate and electrical insulating material comprising same | Hideo Watanabe, Masahiko Sato, Masaaki Ikeda, Takaaki Hattori, Naoki Miwa +3 more | 2002-07-23 |
| 6162871 | Ethylene-.alpha.-olefin copolymer and composition, and film, laminate and electrical insulating material comprising same | Hideo Watanabe, Masahiko Sato, Masaaki Ikeda, Takaaki Hattori, Naoki Miwa +3 more | 2000-12-19 |
| 5874513 | Ethylene-.alpha.-olefin copolymer and composition, and film, laminate and electrical insulating material comprising same | Hideo Watanabe, Masahiko Sato, Masaaki Ikeda, Takaaki Hattori, Naoki Miwa +3 more | 1999-02-23 |
| 5375032 | Trip control device for circuit breaker | Yoshiyuki Fujisawa | 1994-12-20 |
| 5353188 | Overcurrent detector circuit for a circuit-breaker | — | 1994-10-04 |
| 4901184 | Trip control apparatus of circuit breaker | Kazuhiro Ishii, Kazushi Sato, Akira Takao | 1990-02-13 |
| 4819125 | Overcurrent detector | Ichirou Arinobu | 1989-04-04 |
| 4814935 | Circuit breaker reactive to three time-overcurrent characteristics | Ichirou Arinobu | 1989-03-21 |
| 4752865 | Power source device for circuit breaker | Ichirou Arinobu | 1988-06-21 |