Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5295192 | Electronic noise attenuation method and apparatus for use in effecting such method | Hareo Hamada, Akio Kinoshita, Noriharu Sato, Keiichiro Mizuno, Minoru Takahashi | 1994-03-15 |
| 5018202 | Electronic noise attenuation system | Minoru Takahashi, Hareo Hamada, Hideki Hyoudo, Ryusuke Gotoda, Yasushi Yoshimura +2 more | 1991-05-21 |
| 4783817 | Electronic noise attenuation system | Hareo Hamada, Takashi Enokida, Minoru Takahashi, Takashi Kuribayashi, Kinichiro Asami +1 more | 1988-11-08 |
| 4586194 | Earphone characteristic measuring device | Makoto Kohashi, Kaoru Okabe, Haruo Hamada | 1986-04-29 |