Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6747395 | Piezoelectric loudspeaker | Kazue Satoh, Hiroyuki Takewa, Mikio Iwasa | 2004-06-08 |
| 6700987 | Loudspeaker | Shuji Saiki, Hiroyuki Takewa | 2004-03-02 |
| 6655495 | Loudspeaker damper and loudspeaker | Hiroyuki Takewa, Kazue Satoh, Mikio Iwasa | 2003-12-02 |
| 6373958 | Electrical/mechanical/sound converter and apparatus of electrical/mechanical/sound conversion | Mitsutaka Enomoto, Masakuni Hirata, Takanori Fukuyama | 2002-04-16 |
| 6259935 | Electro-mechanical-acoustic transducing device | Shuji Saiki, Kazue Sato, Sawako Usuki | 2001-07-10 |
| 6208237 | Electro-mechanical and acoustic transducer for portable terminal unit | Shuji Saiki, Sawako Usuki | 2001-03-27 |