Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6752072 | Rice polisher, pre-polished rice producing apparatus, leveling device and pre-polished rice producing facility | Soichi Yamamoto, Masashi Shibata, Yoichi Adachi, Yuji Suzuki | 2004-06-22 |
| 6748852 | Rice polisher, pre-polished rice producing apparatus, leveling device and pre-polished rice producing facility | Soichi Yamamoto, Masashi Shibata, Yoichi Adachi, Yuji Suzuki | 2004-06-15 |
| 6539849 | Rice-polisher, pre-polished rice producing apparatus, leveling device and pre-polished rice producing facility | Soichi Yamamoto, Masashi Shibata, Yoichi Adachi, Yuji Suzuki | 2003-04-01 |
| 6493481 | Optical switch unit | Hideaki Okayama, Takayuki Kakinuma | 2002-12-10 |
| 5259303 | Rice cleaning machine | Soichi Yamamoto | 1993-11-09 |
| 5065111 | Differential amplifying circuit operable at high speed | Akinori Tsukuda, Masahisa Nemoto | 1991-11-12 |
| 4530001 | High voltage integrated semiconductor devices using a thermoplastic resin layer | Yasuo Ohno, Yutaka Ohta, Hiroshi Tanabe, Kotaro Kato | 1985-07-16 |
| 4489340 | PNPN Light sensitive semiconductor switch with phototransistor connected across inner base regions | Jun Ueda, Kazuo Hagimura, Hirokazu Tsukada, Kotaro Kato | 1984-12-18 |
| 4244000 | PNPN Semiconductor switches | Jun Ueda, Kazuo Hagimura, Kotaro Kato | 1981-01-06 |