Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12363927 | Wide gap semiconductor device | Yusuke Maeyama, Jin Onuki | 2025-07-15 |
| 11686449 | Vehicle headlamp device | Kenshin Katami | 2023-06-27 |
| 11674660 | Vehicle headlamp device | Kenshin Katami | 2023-06-13 |
| 11437506 | Wide-gap semiconductor device | — | 2022-09-06 |
| 11393911 | Method of manufacturing semiconductor device and semiconductor device | Teppei Takahashi, Tetsuto Inoue, Akihiko Sugai, Takashi Mochizuki | 2022-07-19 |
| 11342435 | Wide-gap semiconductor device | — | 2022-05-24 |
| 11309415 | Wide gap semiconductor device | — | 2022-04-19 |
| 11264494 | Wide-gap semiconductor device | — | 2022-03-01 |
| 11195907 | Semiconductor device and semiconductor device manufacturing method | Akihiko Shibukawa, Yusuke Maeyama | 2021-12-07 |
| 10600869 | Silicon carbide semiconductor device and method of manufacturing the same | Akihiko Sugai, Tetsuto Inoue | 2020-03-24 |
| 10510841 | Method of manufacturing a silicon carbide semiconductor device | Akihiko Sugai, Tetsuto Inoue | 2019-12-17 |
| 10403497 | Method of manufacturing silicon carbide semiconductor device and silicon carbide semiconductor device | Yusuke Fukuda, Yoshiyuki Watanabe | 2019-09-03 |
| 9960228 | Wide gap semiconductor device and method of manufacturing the same | Yusuke Maeyama, Atsushi Ogasawara, Ryohei Osawa, Akihiko Shibukawa | 2018-05-01 |
| 9831316 | Semiconductor device and method of manufacturing semiconductor device | Tetsuto Inoue, Akihiko Sugai | 2017-11-28 |
| 9716168 | Silicon carbide semiconductor device, method of manufacturing silicon carbide semiconductor device and method of designing silicon carbide semiconductor device | Tetsuto Inoue, Akihiko Sugai | 2017-07-25 |
| 9640618 | Silicon carbide semiconductor device, method of manufacturing silicon carbide semiconductor device and method of designing silicon carbide semiconductor device | Tetsuto Inoue, Akihiko Sugai | 2017-05-02 |
| 9496366 | Method for manufacturing silicon carbide (SiC) semiconductor device by introducing nitrogen concentration of 5X1019 cm-3 or more at a boundary surface between thermal oxide film and the SiC substrate and then removing the thermal oxide film | Yusuke Maeyama, Yoshiyuki Watanabe | 2016-11-15 |
| 7273414 | Race game device | Yuji Nagao, Takanori Akiyama, Naoki Kawajiri, Seiji Hayashi, Susumu Murata +8 more | 2007-09-25 |
| 6394898 | Race game device | Yuji Nagao, Takanori Akiyama, Naoki Kawajiri, Seiji Hayashi, Susumu Murata +8 more | 2002-05-28 |
| 5976019 | Running simulation apparatus | Yuji Ikeda, Susumu Murata, Shinya Saito, Kaoru Igarashi | 1999-11-02 |
| 5238735 | Microporous shaped article and process for preparation thereof | Satoshi Nagou, Takeshi Nishibayashi | 1993-08-24 |
| 5031307 | Apparatus for joining slider body and pull tab | Masataka Yoneda | 1991-07-16 |
| 5025544 | Method of joining slider body and pull tab | Masataka Yoneda | 1991-06-25 |
| 4840290 | Bulk loaded coin dispensing machine | Kouichi Iimura, Kikuo Nakamura, Susumu Ozawa | 1989-06-20 |
| 4791144 | Microporous film and process for production thereof | Satoshi Nagou | 1988-12-13 |