Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8102110 | Lamp with outer bulb | Yasushi Sasai, Kanae Matsumoto | 2012-01-24 |
| 8040031 | Lamp with outer tube and attaching member | Yasushi Sasai | 2011-10-18 |
| 8008844 | Triple walled lamp | Yasushi Sasai | 2011-08-30 |
| 4628187 | Planar resistance heating element | Noboru Sato, Hiroki Igarashi, Akiyoshi Ozawa, Iemi Nakazawa | 1986-12-09 |