Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4991074 | Lighting lamp | Yasuo Kobayashi, Yasuo Hirasawa, Churyo Kodama, Katsumi Miyazaki, Masami Yanagisawa +1 more | 1991-02-05 |
| 4954937 | Lighting lamp | Yasuo Kobayashi, Naoki Hagiwara, Taisuke Hirota, Churyo Kodama, Yasuo Hirasawa +4 more | 1990-09-04 |