Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6829404 | Optical switch | Takanori Sugiyama, Yoshihiro Mihara | 2004-12-07 |
| 6791233 | Semiconductor device | Shigeaki Tomonari, Hitoshi Yoshida, Masanao Kamakura, Hiroshi Kawada, Masaaki Saito +2 more | 2004-09-14 |
| 6608539 | Electromagnet driving apparatus and electromagnetic relay | Kazuaki Nishimura, Shunsuke Egashira | 2003-08-19 |
| 6426689 | Electromagnetic relay | Masafumi Nakagawa, Fumihiro Kamitani, Osamu Matsui, Masanori Motoyama, Toyotaka Nishikawa | 2002-07-30 |
| 6384509 | Semiconductor device | Shigeaki Tomonari, Hitoshi Yoshida, Masanao Kamakura, Hiroshi Kawada, Masaaki Saito +2 more | 2002-05-07 |
| 6014068 | Electromagnetic relay | Hiroyuki Kita, Kazuaki Nishimura | 2000-01-11 |
| 5337029 | Polarized relay | Kyoji Ueda, Hiroyuki Kita | 1994-08-09 |
| 4975666 | Polarized electromagnetic relay | — | 1990-12-04 |
| 4703293 | Polarized electromagnetic actuator device | Kenji Ono | 1987-10-27 |
| 4695813 | Polarized electromagnetic relay | Kenji Ono | 1987-09-22 |
| 4688010 | Electromagnetic relay | Kenji Ono, Keiji Okahashi, Sueyoshi Matsumura | 1987-08-18 |
| 4339735 | Electromagnetic relay | Kenji Ono, Hans Sauer | 1982-07-13 |