Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6624374 | Switching apparatus | Kenichi Koyama, Hiroyuki Sasao, Hiroyuki Akita, Yukimori Kishida, Mitsuru Tsukima +1 more | 2003-09-23 |
| 6611413 | Switching apparatus | Toshie Takeuchi, Hiroyuki Sasao, Hiroyuki Akita, Yukimori Kishida, Mitsuru Tsukima +2 more | 2003-08-26 |
| 6580345 | Switching device | Hiroyuki Akita, Hiroyuki Sasao, Kenichi Koyama, Yukimori Kishida, Mitsuru Tsukima +1 more | 2003-06-17 |