Issued Patents All Time
Showing 101–106 of 106 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4613167 | Insulating pipe joint | Kazuo Okahashi, Osamu Hayashi, Isao Ishii | 1986-09-23 |
| 4592003 | Measuring circuit device | Takao Ohta, Masatsugu Miura, Hidetoshi Matsumoto | 1986-05-27 |
| 4433724 | Electrode device for electrically heating underground deposits of hydrocarbons | Toshio Nagano, Nobutaka Koshirakawa, Takeo Inoue | 1984-02-28 |
| 4412124 | Electrode unit for electrically heating underground hydrocarbon deposits | — | 1983-10-25 |
| 4237878 | Dripping fluid level detector | Hideharu Nakai, Isao Kai, Yoshinori Yonemori | 1980-12-09 |
| 4212348 | Heat-radiating floor board | — | 1980-07-15 |