Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9083283 | Digital amplifier | Hiroshi Sugawara, Hisayuki Sasaki, Shigeki Niwayama, Yoshiki Maeda | 2015-07-14 |
| 8975956 | Digital amplifier | Hiroshi Sugawara, Hisayuki Sasaki, Shigeki Niwayama, Yoshiki Maeda | 2015-03-10 |