Issued Patents All Time
Showing 1–25 of 78 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12406844 | Wafer having a silicon carbide crystal layer with stacking faults provided on a silicon carbide base body and semiconductor device manufactured using the wafer | Chiharu Ota, Tatsuo Shimizu, Ryosuke Iijima | 2025-09-02 |
| 12148799 | Semiconductor device, method for manufacturing semiconductor device, inverter circuit, drive device, vehicle, and elevator | Tatsuo Shimizu, Yukio Nakabayashi, Chiharu Ota, Toshihide Ito | 2024-11-19 |
| 11973116 | Semiconductor device | Chiharu Ota | 2024-04-30 |
| 11848211 | Semiconductor device, method for manufacturing semiconductor device, inverter circuit, drive device, vehicle, and elevator | Tatsuo Shimizu, Yukio Nakabayashi, Chiharu Ota, Toshihide Ito | 2023-12-19 |
| 11764269 | Semiconductor device, semiconductor device manufacturing method, inverter circuit, driver device, vehicle, and elevator | Tatsuo Shimizu, Yukio Nakabayashi, Chiharu Ota, Toshihide Ito | 2023-09-19 |
| 11764059 | Method for manufacturing substrate, method for manufacturing semiconductor device, substrate, and semiconductor device | Tatsuo Shimizu | 2023-09-19 |
| 11764270 | Semiconductor device, method for manufacturing semiconductor device, inverter circuit, drive device, vehicle, and elevator | Tatsuo Shimizu, Yukio Nakabayashi, Chiharu Ota, Toshihide Ito | 2023-09-19 |
| 11621167 | Semiconductor device, method for manufacturing semiconductor device, inverter circuit, drive device, vehicle, and elevator | Tatsuo Shimizu, Yukio Nakabayashi, Chiharu Ota, Toshihide Ito | 2023-04-04 |
| 11563090 | Semiconductor device | Tatsuo Shimizu | 2023-01-24 |
| 11469301 | Semiconductor device, semiconductor device manufacturing method, inverter circuit, driver device, vehicle, and elevator | Tatsuo Shimizu, Yukio Nakabayashi, Chiharu Ota, Toshihide Ito | 2022-10-11 |
| 11450745 | Semiconductor device and method for manufacturing the same | Tatsuo Shimizu, Takashi Shinohe | 2022-09-20 |
| 11443946 | Method for manufacturing silicon carbide base body, method for manufacturing semiconductor device, silicon carbide base body, and semiconductor device | Chiharu Ota | 2022-09-13 |
| 11424326 | Semiconductor device | Yukio Nakabayashi, Tatsuo Shimizu, Toshihide Ito, Chiharu Ota | 2022-08-23 |
| 11245017 | Semiconductor device, inverter circuit, drive device, vehicle, and elevator | Shinya Kyogoku, Ryosuke Iijima | 2022-02-08 |
| 11239079 | Semiconductor device, method for manufacturing semiconductor device, inverter circuit, drive device, vehicle, and elevator | Tatsuo Shimizu, Yukio Nakabayashi, Chiharu Ota, Toshihide Ito | 2022-02-01 |
| 11152470 | Method for manufacturing semiconductor device, method for manufacturing substrate, semiconductor device, substrate, and manufacturing apparatus of substrate | Chiharu Ota, Ryosuke Iijima | 2021-10-19 |
| 10998401 | Semiconductor device having a base body of silicon carbide | Chiharu Ota, Ryosuke Iijima | 2021-05-04 |
| 10930732 | Semiconductor device including a silicon carbide layer | Mitsuhiro Kushibe, Tatsuo Shimizu | 2021-02-23 |
| 10707306 | Semiconductor device and method of manufacturing the same | Tatsuo Shimizu, Ryosuke Iijima, Teruyuki Ohashi | 2020-07-07 |
| 10680058 | Semiconductor device having regions of different concentraton of lifetime killer impurity provided in a silicon carbide layer | Mitsuhiro Kushibe, Tatsuo Shimizu | 2020-06-09 |
| 10546932 | Semiconductor device, substrate, method for manufacturing semiconductor device, and method for manufacturing substrate | Tatsuo Shimizu, Mitsuhiro Kushibe | 2020-01-28 |
| 10529558 | Semiconductor device, substrate, method for manufacturing semiconductor device, and method for manufacturing substrate | Tatsuo Shimizu, Mitsuhiro Kushibe | 2020-01-07 |
| 10424640 | Semiconductor device and method of manufacturing the same | Tatsuo Shimizu, Ryosuke Iijima, Teruyuki Ohashi | 2019-09-24 |
| 10312330 | Method for fabricating semiconductor substrate, semiconductor substrate, and semiconductor device | Ryosuke Iijima, Kazuto Takao, Takashi Shinohe | 2019-06-04 |
| 10177009 | Manufacturing method for semiconductor device including first and second thermal treatments | Tatsuo Shimizu, Takashi Shinohe | 2019-01-08 |