Issued Patents 2023
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11817356 | Semiconductor device | Yasunari Umemoto, Shigeki Koya, Kaoru IDENO | 2023-11-14 |
| 11735541 | Semiconductor device with protective protrusion | Kazuya Kobayashi, Atsushi Kurokawa, Hiroaki Tokuya, Yuichi Saito | 2023-08-22 |
| 11705509 | Heterojunction bipolar transistor | Yasunari Umemoto, Shigeki Koya | 2023-07-18 |
| 11705875 | Power amplifier module | Shigeki Koya, Yasunari Umemoto, Yuichi Saito, Takayuki Tsutsui | 2023-07-18 |
| 11658180 | Semiconductor device having a plurality of bipolar transistors with different heights between their respective emitter layers and emitter electrodes | Shigeki Koya, Yasunari Umemoto, Takayuki Tsutsui | 2023-05-23 |
| 11631758 | Semiconductor device | Yasunari Umemoto, Kaoru IDENO, Shigeki Koya | 2023-04-18 |
| 11626511 | Semiconductor device | Yasunari Umemoto, Masahiro Shibata, Shigeki Koya, Masao Kondo, Takayuki Tsutsui | 2023-04-11 |
| 11621678 | Semiconductor device and power amplifier module | Yasunari Umemoto, Masahiro Shibata, Kenichi Nagura | 2023-04-04 |
| 11557664 | Heterojunction bipolar transistor including ballast resistor and semiconductor device | Yasunari Umemoto, Takayuki Tsutsui, Satoshi Tanaka | 2023-01-17 |