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, Munehiko Yanagida, Tetsuya Sato | 1993-05-11 |
| D334243 | Electric lamp | Masato Higano, Tetuya Sato, Munehiko Yanagida | 1993-03-23 |