Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11517881 | Exhaust gas purification catalyst | Hiroki Tanaka, Masaaki Inamura | 2022-12-06 |
| 11233011 | Power semiconductor device | Takashi Hirao | 2022-01-25 |
| 10550321 | Phosphor and use thereof | Masaaki Inamura, Takayoshi Mori, Masanori Sato, Jun Itoh | 2020-02-04 |
| 10229974 | Semiconductor device and power conversion device | Mieko Matsumura, Junichi Sakano, Naoki Tega, Yuki Mori, Keisuke Kobayashi | 2019-03-12 |
| 9543395 | Normally-off power JFET and manufacturing method thereof | Koichi Arai, Yasuaki Kagotoshi, Nobuo Machida, Natsuki Yokoyama | 2017-01-10 |
| 9406743 | Semiconductor device with counter doped layer | Yasuaki Kagotoshi, Koichi Arai, Natsuki Yokoyama | 2016-08-02 |
| 9394478 | Phosphor, LED light-emission element, and light source device | Masaaki Inamura, Michiyo INOUE, Akinori Kumagai, Takayoshi Mori, Jun Itoh | 2016-07-19 |
| 9293453 | Electronic circuit device | Natsuki Yokoyama | 2016-03-22 |
| 9166119 | Light-emitting device | Masaaki Inamura, Asuka Sasakura, Akinori Kumagai | 2015-10-20 |
| 9048264 | Manufacturing method of semiconductor device and semiconductor device | Yasuaki Kagotoshi, Koichi Arai, Natsuki Yokoyama | 2015-06-02 |
| 9041049 | Power JFET | Koichi Arai, Yasuaki Kagotoshi, Nobuo Machida, Natsuki Yokoyama | 2015-05-26 |
| 8890169 | Semiconductor device | Norifumi Kameshiro | 2014-11-18 |
| 8872191 | Electronic circuit device | Natsuki Yokoyama | 2014-10-28 |
| 8766277 | Semiconductor device and manufacturing method of the same | Natsuki Yokoyama | 2014-07-01 |
| 8564060 | Semiconductor device with large blocking voltage and manufacturing method thereof | Natsuki Yokoyama | 2013-10-22 |
| 8524552 | Normally-off power JFET and manufacturing method thereof | Koichi Arai, Yasuaki Kagotoshi, Nobuo Machida, Natsuki Yokoyama | 2013-09-03 |
| 8436397 | Semiconductor device including normally-off type junction transistor and method of manufacturing the same | Natsuki Yokoyama | 2013-05-07 |
| 8390001 | Electronic circuit device | Natsuki Yokoyama | 2013-03-05 |
| 8049223 | Semiconductor device with large blocking voltage | Hidekatsu Onose | 2011-11-01 |
| 7880174 | Circuit arrangement having a free-wheel diode | Katsumi Ishikawa, Masahiro Nagasu, Dai Tsugawa | 2011-02-01 |
| 7772613 | Semiconductor device with large blocking voltage and method of manufacturing the same | Natsuki Yokoyama | 2010-08-10 |