Issued Patents 2018
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10163829 | Compound semiconductor substrate and power amplifier module | Yasunari Umemoto, Masahiro Shibata | 2018-12-25 |
| 10134842 | Heterojunction bipolar transistor | Shigeru Yoshida | 2018-11-20 |
| 10056476 | Heterojunction bipolar transistor | Yasunari Umemoto, Shigeki Koya | 2018-08-21 |
| 9997516 | Semiconductor device and power amplifier circuit | Shigeru Yoshida, Kaoru IDENO | 2018-06-12 |
| 9859405 | Heterojunction bipolar transistor | Yasunari Umemoto, Shigeru Yoshida, Masahiro Shibata | 2018-01-02 |