Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7948725 | Composite integrated semiconductor device | Shin Kiuchi, Kazuhiko Yoshida, Takeshi Ichimura, Naoki Yaezawa | 2011-05-24 |
| 7352548 | Composite integrated semiconductor device | Shin Kiuchi, Kazuhiko Yoshida, Takeshi Ichimura, Naoki Yaezawa | 2008-04-01 |
| 7042063 | Semiconductor wafer, semiconductor device, and process for manufacturing the semiconductor device | — | 2006-05-09 |
| 6462382 | MOS type semiconductor apparatus | Kazuhiko Yoshida, Tatsuhiko Fujihira, Motoi Kudoh, Shigeyuki Takeuchi | 2002-10-08 |
| 6336448 | Ignition semiconductor device | Minoru Nishio | 2002-01-08 |
| 6229180 | MOS type semiconductor apparatus | Kazuhiko Yoshida, Tatsuhiko Fujihira, Motoi Kudoh, Shigeyuki Takeuchi | 2001-05-08 |
| 5970964 | Circuit device for igniting internal combustion engine and semiconductor device for igniting internal combustion engine | Shigeyuki Takeuchi, Tatsuhiko Fujihira | 1999-10-26 |
| 5973359 | MOS type semiconductor device | Takashi Kobayashi, Tatsuhiko Fujihira, Shigeyuki Takeuchi, Yoshiki Kondo | 1999-10-26 |
| 5621601 | Over-current protection apparatus for transistor | Tatsuhiko Fujihira, Shin Kiuchi, Kazuhiko Yoshida, Yukio Yano, Kazunori Oyabe +1 more | 1997-04-15 |
| 5521421 | Semiconductor device | — | 1996-05-28 |
| 5341004 | Semiconductor switching device with reduced switching loss | — | 1994-08-23 |
| 5233503 | Pressure-contact type semiconductor device | — | 1993-08-03 |
| 5227964 | Switching power supply with overcurrent protection circuit | — | 1993-07-13 |
| 5202619 | Control circuit for a switching transistor | Naoto Fujisawa, Seiki Igarashi | 1993-04-13 |
| 5091664 | Insulated gate bipolar transistor circuit with overcurrent protection | — | 1992-02-25 |
| 4825279 | Semiconductor device | — | 1989-04-25 |
| 4740722 | Composite semiconductor device | — | 1988-04-26 |