Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5386484 | Optical fiber type polarizer | Akihiro Ooka, Kenji Kawamura, Yozo Nishiura, Takaki Iwashita, Yasuhiko Nishi +2 more | 1995-01-31 |
| D294797 | Package wrapping cutter | — | 1988-03-22 |
| 4595806 | On-load tap changer | — | 1986-06-17 |
| 4472615 | Contact switching device | Yuji Mihara | 1984-09-18 |