Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875918 | Method of manufacturing fiber preform for single-mode fibers | Futoshi Mizutani, Takeshi Kyogoku, Shigeki Endoh | 1989-10-24 |
| 4405274 | Snap ring intended for prevention of looseness of a nut | Tsutomu Hasebe | 1983-09-20 |