Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8538056 | Hearing aid | Masahiro Ishibashi, Takeshi Umeda, Takashi Fujikawa | 2013-09-17 |
| 8345905 | Hearing aid | Keiichi Takeda, Minoru Tada, Makoto Yagi, Fumihiro Asayama | 2013-01-01 |
| D672874 | Eartip retainer for hearing aids | Masahiro Ishibashi, Takeshi Umeda, Takashi Fujikawa | 2012-12-18 |
| D672875 | Eartip retainer for hearing aids | Masahiro Ishibashi, Takeshi Umeda, Takashi Fujikawa | 2012-12-18 |
| 8270650 | Hearing aid | Minoru Tada, Kazumasa Okamura | 2012-09-18 |
| 8270645 | Hearing aid | Keiichi Takeda, Minoru Tada, Makoto Yagi, Fumihiro Asayama | 2012-09-18 |
| 7936893 | Hearing aid | Minoru Tada, Kazumasa Okamura | 2011-05-03 |