Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4836657 | Optical change-over switch utilizing ferroelectric liquid crystal material | Yasuhiro Gunji, Masato Isogai, Katsumi Kondo, Masahiko Ibamoto, Kazuhiro Kuwabara +1 more | 1989-06-06 |
| 4502286 | Constant pressure type boiling cooling system | Hisao Sonobe, Tomoaki Mino | 1985-03-05 |
| 4330033 | Constant pressure type ebullient cooling equipment | Hisao Sonobe | 1982-05-18 |