Issued Patents 2018
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10104477 | Speaker for generating sound based on digital signal | Kenji Ogata, Akihiko Hosaka | 2018-10-16 |
| 10021473 | Digital speaker, speaker system, and earphones | Kenji Ogata, Akihiko Hosaka | 2018-07-10 |
| 9973857 | Piezoelectric speaker and electroacoustic transducer | Yasukazu Tokuhisa, Takashi Tomita, Hiroshi Hamada, Shigeo Ishii, Yutaka Doshida | 2018-05-15 |
| 9911811 | Method for manufacturing silicon carbide semiconductor device, method for manufacturing semiconductor base, silicon carbide semiconductor device, and device for manufacturing silicon carbide semiconductor device | Yusuke Fukuda | 2018-03-06 |
| 9891736 | Vibrating device and electronic device using same | Shigeo Ishii | 2018-02-13 |