Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5952930 | Ionic flame detector using plural electrodes | Takahiro Umeda, Takeshi Nagai, Toshiro Ogino, Akio Fukuda | 1999-09-14 |
| 5216404 | SiC thin-film thermistor | Takeshi Nagai, Shuji Itou | 1993-06-01 |
| 5186810 | Oxygen sensor | Takeshi Nagai | 1993-02-16 |
| 4212854 | Method for purification of air containing carbon monoxide | Masao Maki, Seiichi Sano, Ikuo Kobayashi | 1980-07-15 |