Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5209668 | Socket with a lamp without a metallic base | Masato Higano, Tetsuya Sato, Masakazu Yanagiya | 1993-05-11 |
| D334243 | Electric lamp | Masato Higano, Masakazu Yanagiya, Tetuya Sato | 1993-03-23 |