Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812155 | Method for production of glass preform for optical fibers | Michihisa Kyoto, Naoki Yoshioka, Gotaro Tanaka, Hiroo Kanamori, Minoru Watanabe | 1989-03-14 |
| 4804247 | Quartz glass optical fiber | Michihisa Kyoto, Shuzo Suzuki, Minoru Watanabe | 1989-02-14 |
| 4801322 | Method, apparatus and burner for fabricating an optical fiber preform | Hiroyuki Suda, Shuichi Shibata | 1989-01-31 |