Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5739943 | Polarization control unit | Shigeru Ohshima, Tazuko Tomioka, Senji Shimanuki, Manish Sharma, Hiroyuki Ibe +2 more | 1998-04-14 |
| 4998256 | Semiconductor laser apparatus | Shigeru Ohshima | 1991-03-05 |