Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6742622 | Molded foam resin, process for forming the same and speaker diaphragm consisting of the same | Masatoshi Sato, Yoshitaka Kobayashi | 2004-06-01 |
| 6633280 | Touch panel device | Kanya Matsumoto | 2003-10-14 |
| 6628271 | Touch panel device | Kanya Matsumoto | 2003-09-30 |
| 6597798 | Loudspeaker | Shigeru Watanabe | 2003-07-22 |
| 6334504 | Molded foam resin, process for forming the same and speaker diaphragm consisting of the same | Masatoshi Sato, Yoshitaka Kobayashi | 2002-01-01 |
| 6030561 | Methods for making a loudspeaker vibrating diaphragm | Masatoshi Sato, Kunio Mitobe, Fumio Murayama | 2000-02-29 |
| 5793002 | Loudspeaker vibrating diaphragm and methods for its production | Masatoshi Sato, Kunio Mitobe, Fumio Murayama | 1998-08-11 |