Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7551748 | Earphone | Shotaro Kamo, Eiji Matsuyama, Isao Fushimi, Masayoshi Sugiyama | 2009-06-23 |
| 7447327 | Flexible PCB voice coil connector | Yoshio Imahori, Isao Fushimi | 2008-11-04 |
| D547305 | Speaker for vehicle | Shigeru Sugiyama | 2007-07-24 |
| 6763120 | Speaker | Shigeru Sugiyama, Yoshio Imahori | 2004-07-13 |
| 6675930 | Speaker holder | Shigeru Sugiyama, Yoshio Imahori | 2004-01-13 |
| 6621912 | Speaker | Shigeru Sugiyama, Naohiro Fujinami, Yoshio Imahori, Hitoshi Yamashima | 2003-09-16 |
| 6513623 | Speaker | Shigeru Sugiyama, Naohiro Fujinami, Yoshio Imahori, Hitoshi Yamashima | 2003-02-04 |
| D466888 | Speaker | Shigeru Sugiyama | 2002-12-10 |
| 6484844 | Speaker | Shigeru Sugiyama, Naohiro Fujinami, Masami Kushida, Hisashi Kubota | 2002-11-26 |
| 6476711 | Sounding-body driving circuit and operating sound generating apparatus using the same | Naohiro Fujinami, Katsuyoshi Omori | 2002-11-05 |