Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8531068 | Rotation sensor and direct current motor | Ken Tanaka, Yasuhiro Fukagawa | 2013-09-10 |
| 8525464 | Rotation detecting apparatus and rotation detecting system | Ken Tanaka, Yasuhiro Fukagawa | 2013-09-03 |
| 8222776 | Rotation detector and direct-current motor | Ken Tanaka, Tsutomu Nakamura, Kenji Takeda, Yasuhiro Fukagawa | 2012-07-17 |