Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10680091 | Semiconductor device | Tomoyoshi Kushida, Yoshitaka Nagasato, Hiroyuki Sakaki | 2020-06-09 |
| 6724253 | Predistortion type linearizer controlled by two control voltages | Gary Hau | 2004-04-20 |
| 6720200 | Field effect transistor and fabrication process thereof | Keiko Yamaguchi | 2004-04-13 |
| 6624440 | Field effect transistor | Yasunori Bito | 2003-09-23 |
| 6570194 | Compound semiconductor field effect transistor with improved ohmic contact layer structure and method of forming the same | Takehiko Kato | 2003-05-27 |
| 6552373 | Hetero-junction field effect transistor having an intermediate layer | Yuji Ando, Hironobu Miyamoto, Koji Matsunaga, Masaaki Kuzuhara, Kensuke Kasahara +5 more | 2003-04-22 |
| 6534790 | Compound semiconductor field effect transistor | Takehiko Kato, Kazuki Ota, Hironobu Miyamoto, Masaaki Kuzuhara | 2003-03-18 |
| 6436756 | Semiconductor device and fabrication method thereof | Takeshi Nishimura | 2002-08-20 |
| 6426523 | Heterojunction field effect transistor | Keiko Yamaguchi | 2002-07-30 |
| 6388530 | Microwave amplifier implemented by heterojunction field effect transistors | Takeshi Nishimura | 2002-05-14 |
| 6353360 | Linearized power amplifier based on active feedforward-type predistortion | Gary Hau | 2002-03-05 |
| 6144051 | Semiconductor device having a metal-insulator-metal capacitor | Takeshi Nishimura | 2000-11-07 |
| 6130589 | Matching circuit and a method for matching a transistor circuit | Keiko Yamaguchi | 2000-10-10 |
| 6072205 | Passive element circuit | Keiko Yamaguchi | 2000-06-06 |
| 6025613 | Semiconductor device capable of reducing leak current and having excellent pinch-off characteristic and method of manufacturing the same | Yasunori Bito | 2000-02-15 |
| 5943577 | Method of making heterojunction bipolar structure having air and implanted isolations | Walter Contrata | 1999-08-24 |
| 4689646 | Depletion mode two-dimensional electron gas field effect transistor and the method for manufacturing the same | Yoshishige Matsumoto | 1987-08-25 |