Issued Patents All Time
Showing 1–25 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11670696 | Semiconductor device and production method therefor | Go Nishio | 2023-06-06 |
| 10901332 | Image forming apparatus and image forming method | Toshiki Fujita, Masahito Ishino, Kiyotaka Kobayashi | 2021-01-26 |
| 10879349 | Method for manufacturing semiconductor device and edge termination structure of semiconductor device | Tohru Oka, Junya Nishii | 2020-12-29 |
| 10854454 | Semiconductor device and method for manufacturing the same | Yukihisa Ueno, Junya Nishii, Toru Oka | 2020-12-01 |
| 10832911 | Semiconductor device | Toru Oka, Yukihisa Ueno, Kota Yasunishi | 2020-11-10 |
| 10698359 | Image forming apparatus and image forming method | Toshiki Fujita, Ikuo Makie, Masahito Ishino, Kiyotaka Kobayashi | 2020-06-30 |
| 10635013 | Image forming apparatus and image forming method | Masahito Ishino, Toshiki Fujita, Teppei Shibuya, Kiyotaka Kobayashi | 2020-04-28 |
| 10490408 | Method for manufacturing semiconductor device | Junya Nishii, Tohru Oka | 2019-11-26 |
| 10310441 | Electrophotographic image forming apparatus, and electricity removing member used in image forming apparatus | Shingo Sakato, Kiyotaka Kobayashi, Hiroka Itani, Takuji Watanabe, Eriko Hayashi | 2019-06-04 |
| 10256323 | Method of manufacturing semiconductor device including an n type semiconductor region formed in a p type semiconductor layer | Tohru Oka | 2019-04-09 |
| 10177234 | Semiconductor device | Tohru Oka | 2019-01-08 |
| 10153356 | Method of manufacturing semiconductor device, and semiconductor device | Tohru Oka | 2018-12-11 |
| 10153352 | Semiconductor device | Tohru Oka | 2018-12-11 |
| 10042318 | Electrophotographic image forming apparatus and electricity removing member used in the same | Hiroka Itani, Shingo Sakato, Kiyotaka Kobayashi, Takuji Watanabe, Eriko Hayashi | 2018-08-07 |
| 10026808 | Semiconductor device including insulating film that includes negatively charged microcrystal | Tohru Oka, Kazuya Hasegawa, Noriaki Murakami, Takahiro Sonoyama | 2018-07-17 |
| 9985127 | Semiconductor device including a mesa groove and a recess groove | Yukihisa Ueno | 2018-05-29 |
| 9972725 | Semiconductor device and manufacturing method of the same | Kazuya Hasegawa, Tohru Oka | 2018-05-15 |
| 9711661 | Semiconductor device and manufacturing method thereof | Tohru Oka, Kazuya Hasegawa, Noriaki Murakami | 2017-07-18 |
| 9691846 | Semiconductor device including an insulating layer which includes negatively charged microcrystal | Tohru Oka, Kazuya Hasegawa, Noriaki Murakami, Takahiro Sonoyama | 2017-06-27 |
| 9685348 | Semiconductor device, method of manufacturing the same and power converter | Tsutomu INA, Tohru Oka | 2017-06-20 |
| 9653564 | Semiconductor device and method of manufacturing the same | Tohru Oka | 2017-05-16 |
| 9583580 | Manufacturing method of the semiconductor device electrode having three metal layers | Tohru Oka | 2017-02-28 |
| 9559218 | Semiconductor device and method of manufacturing the same | Kazuya Hasegawa, Tohru Oka | 2017-01-31 |
| 9443950 | Semiconductor device | Toru Oka | 2016-09-13 |
| 9431260 | Semiconductor device and manufacturing method of the same | Tohru Oka | 2016-08-30 |