Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10854523 | Semiconductor device | Koichiro Nishizawa, Katsumi Miyawaki, Shinsuke Watanabe, Toshihiko Shiga | 2020-12-01 |
| 9508564 | Method for manufacturing semiconductor device | Yoshinori Yokoyama, Kazuyo Endo, Jun Fujita, Shinnosuke Soda, Kazuyasu Nishikawa +2 more | 2016-11-29 |
| 9159654 | Semiconductor device | Youichi Nogami, Hidetoshi Koyama | 2015-10-13 |
| 9117742 | High electron mobility transistor with shortened recovery time | Hiroyuki Kinoshita, Tetsuo Kunii | 2015-08-25 |
| 8912099 | Method of manufacturing semiconductor device | Kenichiro Kurahashi, Yoshitaka Kamo | 2014-12-16 |
| 8878333 | Semiconductor device having improved RF characteristics and moisture resistance and method for manufacturing the same | Youichi Nogami, Hidetoshi Koyama | 2014-11-04 |
| 8816493 | Semiconductor device | Yoichi Nogami, Akira Inoue, Yoshinori Yokoyama, Jun Fujita, Kazuyo Endo +2 more | 2014-08-26 |
| 8247844 | Semiconductor device and manufacturing method thereof | Toshiyuki Oishi, Hiroshi Otsuka, Koji Yamanaka, Akira Inoue | 2012-08-21 |
| 8232609 | Semiconductor device including field effect transistor with reduced electric field concentration | Tetsuo Kunii, Hirotaka Amasuga, Youichi Nogami | 2012-07-31 |
| 7700972 | Semiconductor device | Hideo Takeuchi | 2010-04-20 |
| 7656514 | Method and apparatus for evaluating semiconductor layers | Hideo Takeuchi | 2010-02-02 |
| 7612633 | High-frequency switch | Masatake Hangai, Yukinobu Tarui, Tamotsu Nishino, Moriyasu Miyazaki, Yoji Isota | 2009-11-03 |
| 7528443 | Semiconductor device with recessed gate and shield electrode | Tetsuo Kunii, Hirotaka Amasuga | 2009-05-05 |
| 7420684 | Method and apparatus for measuring surface carrier recombination velocity and surface Fermi level | Hideo Takeuchi | 2008-09-02 |
| 7038768 | Optical measuring method for semiconductor multiple layer structures and apparatus therefor | Hideo Takeuchi | 2006-05-02 |
| 6998615 | Method for evaluating piezoelectric fields | Hideo Takeuchi, Takahide Ishikawa | 2006-02-14 |
| 6911837 | Method and apparatus for evaluating and adjusting microwave integrated circuit | Takahide Ishikawa, Tetsuo Kunii, Satoshi Suzuki, Hirotaka Amasuga | 2005-06-28 |
| 6819119 | Method for evaluating a crystalline semiconductor substrate | Satoshi Suzuki, Ryo Hattori | 2004-11-16 |
| 6570390 | Method for measuring surface leakage current of sample | Taisei Hirayama, Koichiro Ito, Ryo Hattori, Yoshihiro Notani, Shinichi Miyakuni | 2003-05-27 |
| 6043520 | III-V heterojunction bipolar transistor having a GaAs emitter ballast | Ryo Hattori | 2000-03-28 |
| 6037242 | Method of making hetero-structure | Norio Hayafuji | 2000-03-14 |
| 5874753 | Field effect transistor | Norio Hayafuji | 1999-02-23 |
| 5811843 | Field effect transistor | Norio Hayafuji | 1998-09-22 |
| 5796127 | High electron mobility transistor | Norio Hayafuji, Hirotaka Kizuki | 1998-08-18 |
| 5729030 | Semiconductor device | Norio Hayafuji | 1998-03-17 |