Issued Patents All Time
Showing 51–75 of 87 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10374071 | Heterojunction bipolar transistor | Shigeki Koya, Shigeru Yoshida, Isao Obu | 2019-08-06 |
| 10361666 | Semiconductor device and power amplifier module | Isao Obu, Masahiro Shibata, Kenichi Nagura | 2019-07-23 |
| 10355114 | Heterojunction bipolar transistor | Isao Obu, Shigeru Yoshida, Masahiro Shibata | 2019-07-16 |
| 10297680 | Bipolar transistor and method for producing the same | Shigeki Koya, Atsushi Kurokawa | 2019-05-21 |
| 10163829 | Compound semiconductor substrate and power amplifier module | Isao Obu, Masahiro Shibata | 2018-12-25 |
| 10147809 | Semiconductor device | Atsushi Kurokawa, Tsunekazu Saimei | 2018-12-04 |
| 10056476 | Heterojunction bipolar transistor | Shigeki Koya, Isao Obu | 2018-08-21 |
| 10002950 | Bipolar transistor and method for producing the same | Shigeki Koya, Atsushi Kurokawa | 2018-06-19 |
| 9991217 | Semiconductor device | Daisuke Tokuda, Tsunekazu Saimei, Hiroaki Tokuya | 2018-06-05 |
| 9859405 | Heterojunction bipolar transistor | Isao Obu, Shigeru Yoshida, Masahiro Shibata | 2018-01-02 |
| 9508669 | Semiconductor device | Daisuke Tokuda, Tsunekazu Saimei, Hiroaki Tokuya | 2016-11-29 |
| 9397204 | Heterojunction bipolar transistor with two base layers | Isao Obu, Atsushi Kurokawa | 2016-07-19 |
| 9331187 | Bipolar transistor | Atsushi Kurokawa, Tsunekazu Saimei | 2016-05-03 |
| 9263559 | Semiconductor device and radio communication device | Satoshi Sasaki, Yasuo Osone, Tsutomu Kobori, Chushiro Kusano, Isao Ohbu +1 more | 2016-02-16 |
| 9130004 | Heterojunction bipolar transistor, power amplifier including the same, and method for fabricating heterojunction bipolar transistor | Isao Obu, Atsushi Kurokawa | 2015-09-08 |
| 8860093 | Semiconductor device and radio communication device | Satoshi Sasaki, Yasuo Osone, Tsutomu Kobori, Chushiro Kusano, Isao Ohbu +1 more | 2014-10-14 |
| 8546939 | RF module including control IC without the aid of a relay pad | Kenji Sasaki, Tomonori Tanoue, Sakae Kikuchi, Toshifumi Makino, Takeshi Sato +2 more | 2013-10-01 |
| 8227836 | Semiconductor device and radio communication device | Satoshi Sasaki, Yasuo Osone, Tsutomu Kobori, Chushiro Kusano, Isao Ohbu +1 more | 2012-07-24 |
| 8072001 | Heterojunction bipolar transistor and method for manufacturing the same, and power amplifier using the same | Isao Ohbu, Chushiro Kusano, Atsushi Kurokawa | 2011-12-06 |
| 7804109 | Heterojunction bipolar transistor and method for manufacturing the same, and power amplifier using the same | Isao Ohbu, Chushiro Kusano, Atsushi Kurokawa | 2010-09-28 |
| 7723753 | Semiconductor device and manufacturing method of the same | Kenji Sasaki, Ikuro Akazawa, Yoshinori Imamura, Atsushi Kurokawa, Tatsuhiko Ikeda +2 more | 2010-05-25 |
| 7622756 | Semiconductor device and radio communication device | Satoshi Sasaki, Yasuo Osone, Tsutomu Kobori, Chushiro Kusano, Isao Ohbu +1 more | 2009-11-24 |
| 7511315 | Semiconductor device and manufacturing method therefor | Satoru Konishi, Tsuneo Endo, Hirokazu Nakajima, Satoshi Sasaki, Chushiro Kusano +2 more | 2009-03-31 |
| 7256434 | Heterojunction bipolar transistor and method for manufacturing the same, and power amplifier using the same | Isao Ohbu, Chushiro Kusano, Atsushi Kurokawa | 2007-08-14 |
| 7045877 | Semiconductor protection device | Hideyuki Ono, Tomonori Tanoue, Yasuo Ohsone, Isao Ohbu, Chushiro Kusano +2 more | 2006-05-16 |