Patents per Year
Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4794441 | Semiconductor switch circuit | Yoshitaka Sugawara, Tadakatsu Kimura, Yasunobu Inabe, Masa-aki Tanabe | 1988-12-27 | $47,000 |
| 4465967 | Current supply circuit | Michio Tokunaga, Akio Sagawa, Toshio Hayashi, Kazuo Hamazato | 1984-08-14 | $76,000 |
| 4385336 | Current supplying circuit with shorted-to-ground fault detecting function | Tetsuo Takeshita, Koichi Hagishima | 1983-05-24 | $101,000 |
| 4380021 | Semiconductor integrated circuit | Mitsuo Matsuyama, Ichiro Ohhinata | 1983-04-12 | $123,000 |
| 4360709 | Loop detecting circuit | Kazuo Hamazato, Tetsuo Takeshita | 1982-11-23 | $246,000 |
| 4277696 | Semiconductor switch circuit | Michio Tokunaga | 1981-07-07 | $150,000 |