Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10897194 | Power factor improvement circuit and semiconductor apparatus | Takato Sugawara | 2021-01-19 |
| D667371 | Solar cell | Makoto SHIMOSAWA | 2012-09-18 |
| 4908640 | Apparatus for taking photograph with monitoring system | — | 1990-03-13 |
| 4872199 | Battery-feed circuit for exchange | Shigeru Kawami, Takashi Tabu, Shigeo Sano | 1989-10-03 |