Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848727 | Solenoid valve | Masahiro Nanbu | 1989-07-18 |
| 4801322 | Method, apparatus and burner for fabricating an optical fiber preform | Shuichi Shibata, Motohiro Nakahara | 1989-01-31 |