Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8404391 | Method of operating polymer electrolyte fuel cell | Hisaaki Gyoten, Akira Taomoto | 2013-03-26 |
| 8337732 | Method for fabricating a polymer electrolyte membrane for a fuel cell | Hisaaki Gyoten, Akira Taomoto | 2012-12-25 |
| 6373393 | Flame detection device and flame detection | Hidenari Matsukuma, Hiroshi Shima | 2002-04-16 |
| 5576697 | Fire alarm system | Tetsuya Nagashima | 1996-11-19 |
| 5280272 | Fire alarm system which distinguishes between different types of smoke | Tetsuya Nagashima | 1994-01-18 |