Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4770898 | Method for producing optical fiber | Masakatsu Sugai, Katsuyuki Tsuneishi | 1988-09-13 |
| 4655545 | Glass fiber for optical transmission | Toru Yamanishi, Masaaki Yoshida, Masao Yuto, Chihaya Tanaka | 1987-04-07 |
| 4549391 | Wire-like structure twisting machine | Yuichi Toda, Katsuji Sakamoto, Shigeru Tanaka | 1985-10-29 |
| 4458986 | Coated plastic optical fiber | Masao Yuto | 1984-07-10 |
| 4224046 | Method for manufacturing an optical fiber preform | Tatsuo Izawa, Toru Kuwabara, Yuichi Masuda | 1980-09-23 |