Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7386145 | Loudspeaker system, method and apparatus of manufacturing the same | Teruho Yamada, Masahiko Kawahara, Yukio Sugimoto, Seiji Mori | 2008-06-10 |
| 6899794 | Speaker device, and method and device for producing the same | Teruho Yamada, Masahiko Kawahara, Yukio Sugimoto, Seiji Mori | 2005-05-31 |
| 6371241 | Speaker device | Teruho Yamada, Tsuyoshi Nakada, Seiji Mori | 2002-04-16 |
| 6073996 | Structure of seat back with armrest and method for forming the same | Susumu Hatsuta | 2000-06-13 |