Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7599207 | Semiconductor memory device | — | 2009-10-06 |
| 7319607 | Ferroelectric memory | — | 2008-01-15 |
| 7193882 | Semiconductor memory device | Kazuhiko Takahashi, Shoichi Kokubo | 2007-03-20 |
| 7154767 | Method for manufacture of semiconductor device | — | 2006-12-26 |
| 7012830 | Semiconductor memory device | Kazuhiko Takahashi, Shoichi Kokubo | 2006-03-14 |
| 6999336 | Ferroelectric memory | — | 2006-02-14 |
| 6914799 | Semiconductor memory device | Kazuhiko Takahashi, Shoichi Kokubo | 2005-07-05 |
| 6870754 | Ferroelectric memory | — | 2005-03-22 |
| 6781862 | Semiconductor memory device | Kazuhiko Takahashi, Shoichi Kokubo | 2004-08-24 |
| 5850362 | Semiconductor memory device employing an improved layout of sense amplifiers | Sampei Miyamoto | 1998-12-15 |
| 5313426 | Semiconductor memory device | Sampei Miyamoto | 1994-05-17 |
| 4707577 | Vacuum interrupter | Nobuaki Tamaki, Toshimasa Fukai, Masatoshi Takihana | 1987-11-17 |
| 4661666 | Vacuum interrupter | Nobuaki Tamaki, Hideo Kawakami | 1987-04-28 |
| 4499349 | Vacuum interrupter | Junichi Warabi, Masayuki Kano, Yutaka Kashimoto | 1985-02-12 |
| RE31797 | Arc-shield supporting structure of a vacuum power interrupter | Junichi Warabi | 1985-01-08 |
| 4481390 | Vacuum circuit interrupter | Yoshiyuki Kashiwagi, Yutaka Kashimoto, Junichi Warabi, Yukio Kobari, Hidemi Kawaguchi | 1984-11-06 |
| 4465991 | Operating device for effecting opening and closing operation of a vacuum interrupter with an electromagnet incorporated therein | Hifumi Yanagisawa, Kazuo Tokuhata, Hiroshi Miyagawa | 1984-08-14 |
| 4446346 | Vacuum interrupter | Yutaka Kashimoto, Eiji Umeya | 1984-05-01 |
| 4434331 | Vacuum power interrupting device | Hifumi Yanagisawa, Kazuo Tokuhata, Hiroshi Miyagawa | 1984-02-28 |
| 4431885 | Vacuum interrupter | Junichi Warabi, Yutaka Kashimoto | 1984-02-14 |
| 4429197 | Vacuum power interrupting device | Hifumi Yanagisawa, Kazuo Tokuhata, Hiroshi Miyagawa | 1984-01-31 |
| 4421961 | Vacuum circuit breaker | Hifumi Yanagisawa, Kazuo Tokuhata, Hiroshi Miyagawa | 1983-12-20 |
| 4417110 | Vacuum interrupter | Hifumi Yanagisawa, Junichi Warabi | 1983-11-22 |
| 4414448 | Vacuum circuit interrupter | Yutaka Kashimoto, Junichi Warabi, Yukio Kobari, Hidemi Kawaguchi | 1983-11-08 |
| 4410777 | Vacuum circuit interrupter | Junichi Warabi, Yukio Kobari | 1983-10-18 |