Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812154 | Method for producing glass preform for optical fiber | Akio Shiomi, Kazuhisa Watanabe | 1989-03-14 |
| 4563312 | Gas supplying apparatus | Hiroaki Takimoto, Tetsuo Miyajiri, Tamio Turita | 1986-01-07 |