Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5674082 | Rotary connector device | Takeshi Okuhara, Kazumi Honjo, Hiroshi Ohishi | 1997-10-07 |
| 4315196 | Disconnection detecting circuit of double-filament spherical lamp | — | 1982-02-09 |