Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12278601 | Power amplifier semiconductor device | Akihiko Nishio, Katsuhiko Kawashima, Takashi Yui | 2025-04-15 |
| 12224331 | Semiconductor device | Katsuhiko Kawashima, Yoshinori Takami, Dai Motojima | 2025-02-11 |
| 12166103 | Semiconductor device for power amplification | Katsuhiko Kawashima, Kenichi MIYAJIMA | 2024-12-10 |
| 12142677 | Semiconductor device | — | 2024-11-12 |
| 11876120 | Semiconductor device and method of manufacturing semiconductor device | Kenichi MIYAJIMA | 2024-01-16 |
| 11257918 | Semiconductor device and method of manufacturing the device | Hideyuki Okita, Manabu Yanagihara, Takeshi Harada | 2022-02-22 |
| 7463569 | Optical disk apparatus with a wavelength plate having a two-dimensional array of birefringent regions | Seiji Nishiwaki, Kazuo Momoo, Jun-ichi Asada, Kenji Otani | 2008-12-09 |