Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5524022 | Digital graphic equalizer | Hisashi Kihara, Shuichi Mori, Atsushi Makino, Shinya Honjo, Masayuki Kato | 1996-06-04 |
| 4849709 | Variable frequency characteristic circuit for a vehicular sound device | Hiroshi Hattori | 1989-07-18 |
| 4845775 | Loudspeaker reproduction apparatus in vehicle | — | 1989-07-04 |