Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11006349 | Communication system and program update method | Yoshiyuki Tanaka, Eiichi Saito | 2021-05-11 |
| 9762187 | Audio output circuit for driving an electroacoustic conversion element | Takayuki Ibusuki, Hideo Araki | 2017-09-12 |
| 9071216 | Signal processing device and signal processing method | Makoto Nagasue | 2015-06-30 |
| 8774426 | Signal processing apparatus, semiconductor chip, signal processing system, and method of processing signal | Masanori Inazumi | 2014-07-08 |
| 8558562 | Method and circuitry for identifying type of plug connected to a dual-use jack | — | 2013-10-15 |
| 8300843 | Sound effect circuit and processing method | Kouya Shimazaki | 2012-10-30 |
| 8103010 | Acoustic signal processing apparatus and acoustic signal processing method | Tsuguto Maruko | 2012-01-24 |
| 7924190 | Adjustble gain signal processing device | Tsuguto Maruko | 2011-04-12 |