Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4554449 | Fiber optic magnetic field sensor | Tetsuo Taniuchi | 1985-11-19 |
| 4498730 | Optical switching device | Tsutomu Tanaka, Hiroyuki Serizawa, Katsuji Hattori | 1985-02-12 |
| 4304460 | Optical switching device | Tsutomu Tanaka, Hiroyuki Serizawa, Katsuji Hattori | 1981-12-08 |