Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8769803 | Speaker manufacturing method | Toshiyuki Koike, Tadashi Akiyama | 2014-07-08 |
| 7315628 | Diaphragm for loud speaker and loud speaker employing it | Ryo Kuribayashi | 2008-01-01 |
| D529899 | Speaker for an automobile | Hiroyuki Amada | 2006-10-10 |
| D529898 | Speaker for an automobile | Ryo Kuribayashi, Hiroyuki Amada | 2006-10-10 |
| D526312 | Speaker for an automobile | Ryo Kuribayashi, Hiroyuki Amada | 2006-08-08 |
| D526311 | Speaker for an automobile | Hiroyuki Amada | 2006-08-08 |
| 7079665 | Loudspeaker | Katsuya Shimomura, Shuji Ido, Shigeru Nishida | 2006-07-18 |
| D524290 | Speaker for an automobile | Hiroyuki Amada | 2006-07-04 |
| D524289 | Speaker for an automobile | Hiroyuki Amada | 2006-07-04 |
| D524300 | Speaker for an automobile | Hiroyuki Amada | 2006-07-04 |
| D523844 | Speaker for an automobile | Hiroyuki Amada | 2006-06-27 |
| D523417 | Speaker for an automobile | Hiroyuki Amada | 2006-06-20 |
| D519496 | Speaker for an automobile | Hiroyuki Amada | 2006-04-25 |
| 6987860 | Speaker installation structure | Takayuki Kurihara, Hiroyuki Tanno, Katsuya Shimomura | 2006-01-17 |