Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6180965 | Semiconductor device having a static induction in a recessed portion | — | 2001-01-30 |
| 6159776 | Method for manufacturing semiconductor device | — | 2000-12-12 |
| 6075269 | Semiconductor device and process for manufacturing the same | Takayuki Sekiya | 2000-06-13 |
| 6025233 | Method of manufacturing a semiconductor device | — | 2000-02-15 |
| 6002143 | Hybrid vertical type power semiconductor device | — | 1999-12-14 |
| 5956577 | Method of manufacturing serrated gate-type or joined structure | — | 1999-09-21 |
| 5950075 | Semiconductor device having recessed gate regions and method of manufacturing the same | — | 1999-09-07 |
| 5946572 | Method of manufacturing a semiconductor device having recessed gate structures | — | 1999-08-31 |
| 5930651 | Method of forming a semiconductor device having a plurality of cavity defined gating regions | — | 1999-07-27 |
| 5894140 | Semiconductor device having recessed gate structures and method of manufacturing the same | — | 1999-04-13 |
| 5847417 | Semiconductor device and method of manufacturing same | — | 1998-12-08 |
| 5841155 | Semiconductor device containing two joined substrates | — | 1998-11-24 |
| 5757035 | Semiconductor device | — | 1998-05-26 |
| 5739044 | Method of manufacturing semiconductor device | — | 1998-04-14 |
| 5702962 | Fabrication process for a static induction transistor | — | 1997-12-30 |
| 5648665 | Semiconductor device having a plurality of cavity defined gating regions and a fabrication method therefor | — | 1997-07-15 |
| 5602405 | Semiconductor device with base formed by the junction of two semiconductors of the same conductive type | — | 1997-02-11 |
| 5591991 | Semiconductor device and method of manufacturing the same | — | 1997-01-07 |
| 4713679 | Reverse blocking type semiconductor device | Saburo Oikawa | 1987-12-15 |
| 4514747 | Field controlled thyristor with double-diffused source region | Kenji Miyata, Saburo Oikawa, Susumu Murakami, Masahiro Okamura | 1985-04-30 |
| 4404580 | Light activated semiconductor device | Nobutake Konishi, Masayoshi Naito, Tsutomu Yatsuo | 1983-09-13 |
| 4354121 | Field controlled thyristor control circuit with additional FCT in reverse bias circuit | Kenji Miyata, Saburo Oikawa, Susumu Murakami, Masahiro Okamura, Takuzo Ogawa | 1982-10-12 |
| 4329772 | Method for manufacturing a semiconductor device utilizing selective epitaxial growth and post heat treating | Saburo Oikawa, Susumu Murakami | 1982-05-18 |
| 4223328 | Field controlled thyristor with dual resistivity field layer | Kenji Miyata, Masayoshi Naito, Takuzo Ogawa, Masahiro Okamura | 1980-09-16 |
| 4214254 | Amplified gate semiconductor controlled rectifier with reduced lifetime in auxiliary thyristor portion | Shin Kimura, Hiroshi Fukui | 1980-07-22 |