Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5254178 | Thermoelectric transducer apparatus comprising N- and P-type semiconductors and having electronic control capabilities | Kenji Yamada, Tatsuya Oike, Kazutoshi Nishizawa | 1993-10-19 |
| 5038569 | Thermoelectric converter | Yuichi Shirota, Kazutoshi Nishizawa, Kenichi Fujiwara, Hideo Ohta, Kenji Yamada | 1991-08-13 |