Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6795608 | Optical communication link | Youichi Akasaka | 2004-09-21 |
| 6704486 | Optical fiber and optical signal transmission system using this optical fiber | — | 2004-03-09 |
| 6175680 | Dispersion shifted optical fiber | Shinichi Arai, Noritsugu Enomoto, Youichi Akasaka | 2001-01-16 |
| 5887104 | Dispersion compensating optical fiber | Ryuichi Sugizaki, Youichi Akasaka | 1999-03-23 |
| 5305656 | Balancer apparatus for engine | Makoto Ishikawa, Masaaki Konishi, Keisuke Suga | 1994-04-26 |
| 4832721 | Method of fabricating optical fiber base material | Nobuhito Uchiyama, Yasuhiro Shibayama | 1989-05-23 |
| 4813989 | Apparatus for fabricating optical fiber preform | Nobuhito Uchiyama, Yasuhiro Shibayama, Shigeo Takagi, Sakae Katano | 1989-03-21 |
| 4798563 | Self-contained type automatic belt tensioner | Yoshio Okabe, Yukimori Kobayashi, Makoto Ishikawa, Tomiaki Atsumi | 1989-01-17 |
| 4772303 | Process for fabricating optical fiber | Yasuhiro Shibayama, Nobuhito Uchiyama, Noboru Sato | 1988-09-20 |