Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5034655 | Circular fluorescent lamp | Seiichi Murayama, Hiromitsu Matsuno, Tetsuo Ono, Yasusuke Seki, Churyo Kodama +1 more | 1991-07-23 |
| 4694224 | Lighting apparatus for an electric discharge lamp | Hisato Nakagawa, Hideo Kuwahara, Mitsuo Akatsuka | 1987-09-15 |