Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9048302 | Field effect transistor having semiconductor operating layer formed with an inclined side wall | Yoshihiro Sato, Hiroshi Kambayashi, Yuki Niiyama, Takehiko Nomura, Masayuki Iwami +1 more | 2015-06-02 |
| 8729603 | GaN-based semiconductor element | Nariaki Ikeda | 2014-05-20 |
| 8525225 | Semiconductor device | Hiroshi Kambayashi, Nariaki Ikeda | 2013-09-03 |
| 8421182 | Field effect transistor having MOS structure made of nitride compound semiconductor | Takehiko Nomura, Sadahiro Kato | 2013-04-16 |
| 8350293 | Field effect transistor and method of manufacturing the same | Tat-Sing P. Chow, Takehiko Nomura, Yuki Niiyama, Hiroshi Kambayashi | 2013-01-08 |
| 8304809 | GaN-based semiconductor device and method of manufacturing the same | Shusuke Kaya, Sadahiro Kato, Takehiko Nomura, Nariaki Ikeda, Masayuki Iwami +3 more | 2012-11-06 |
| 8183597 | GaN semiconductor device having a high withstand voltage | Nariaki Ikeda, Jiang Li | 2012-05-22 |
| 8178898 | GaN-based semiconductor element | Nariaki Ikeda | 2012-05-15 |
| 8134181 | Semiconductor device | Yoshihiro Sato, Sadahiro Kato | 2012-03-13 |
| 8093626 | Normally-off field effect transistor using III-nitride semiconductor and method for manufacturing such transistor | Yuki Niiyama, Shinya Ootomo, Tatsuyuki Shinagawa, Takehiko Nomura, Hiroshi Kambayashi | 2012-01-10 |
| 8072002 | Field effect transistor | Yuki Niyama, Hiroshi Kambayashi, Takehiko Nomura, Masayuki Iwami, Shinya Ootomo | 2011-12-06 |
| 7998848 | Method of producing field effect transistor | Yuki Niiyama, Hiroshi Kambayashi, Takehiko Nomura | 2011-08-16 |
| 7855155 | Process for producing semiconductor device using optical absorption layer | Yuki Niiyama, Hiroshi Kambayashi, Takehiko Nomura | 2010-12-21 |
| 7821035 | ED inverter circuit and integrate circuit element including the same | Takehiko Nomura, Hiroshi Kambayashi, Yuki Niiyama | 2010-10-26 |
| 7812371 | GaN based semiconductor element | Shusuke Kaya, Sadahiro Kato, Takehiko Nomura, Nariaki Ikeda, Masayuki Iwami +3 more | 2010-10-12 |
| 7723752 | Nitride semiconductor heterojunction field effect transistor | Fumio Hasegawa | 2010-05-25 |
| 7329908 | Nitride-based compound semiconductor electron device including a buffer layer structure | — | 2008-02-12 |
| 7038253 | GaN-based field effect transistor of a normally-off type | Masayuki Sasaki | 2006-05-02 |
| 6897495 | Field effect transistor and manufacturing method therefor | Takahiro Wada, Hironari Takehara | 2005-05-24 |
| 6768146 | III-V nitride semiconductor device, and protection element and power conversion apparatus using the same | — | 2004-07-27 |
| 6674101 | GaN-based semiconductor device | — | 2004-01-06 |
| 6580101 | GaN-based compound semiconductor device | — | 2003-06-17 |
| 6576927 | Semiconductor device and GaN-based field effect transistor for use in the same | Hironari Takehara, Takahiro Wada | 2003-06-10 |
| 6534801 | GaN-based high electron mobility transistor | — | 2003-03-18 |
| 6396085 | GaN-type semiconductor vertical field effect transistor | — | 2002-05-28 |