Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5909439 | Satellite communications system | Takao Udaka, Norihiko Nakazawa, Kazuyoshi Miyoshi | 1999-06-01 |
| 4972400 | Optical pickup apparatus having switch for allowing positional adjustment | Kazuo Hirasawa, Kiyomitsu Nishimura | 1990-11-20 |
| 4224046 | Method for manufacturing an optical fiber preform | Tatsuo Izawa, Yuichi Masuda, Yuji Kameo | 1980-09-23 |