Issued Patents All Time
Showing 51–66 of 66 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7583812 | Electro-acoustic converter and electronic device using the same | Koji Sano, Kazuya Yamasaki, Kazutaka Kubo, Masahide Sumiyama | 2009-09-01 |
| 7548627 | Speaker, and module, electronic apparatus, and device that use the speaker | Tomoyasu Takase, Masanori Nakano, Masahide Sumiyama, Hiroshi Yano, Kazutaka Kubo +6 more | 2009-06-16 |
| 7548632 | Speaker, module using the same, electronic equipment and device, and speaker producing method | Takanori Fukuyama, Tomoyasu Takase, Koji Sano, Hiroshi Yano, Masanori Nakano +6 more | 2009-06-16 |
| 7527516 | Portable electronic device | Mitsutaka Enomoto, Toshiharu Takahashi, Shoji Nakajima, Kyoichi Hasegawa, Masahide Sumiyama | 2009-05-05 |
| 7497003 | Apparatus and method for supporting speaker design, and program therefor | Akira Tanaka, Koji Sano, Tomoko Handa | 2009-03-03 |
| D577712 | Speaker | Satoshi Itoh, Koji Sano, Kazuya Yamasaki | 2008-09-30 |
| 7428946 | Suspension and electro-acoustic transducer using the suspension | Koji Sano, Tatsuya Omori | 2008-09-30 |
| 7362877 | Electric acoustic converter and electronic device using the same | Koji Sano, Kazutaka Kubo, Kazuya Yamasaki, Hiroshi Yano, Takeshi Shimokawatoko +4 more | 2008-04-22 |
| 6002781 | Speaker system | Satoshi Takayama | 1999-12-14 |
| 5932850 | Speaker system | Takashi Sabato, Toshihide Takizawa, Teruo Doi, Takafumi Yuasa | 1999-08-03 |
| 5929392 | Speaker system | Takashi Sabato, Toshihide Takizawa, Teruo Doi, Takafumi Yuasa | 1999-07-27 |
| 5793000 | Speaker system | Takashi Sabato, Toshihide Takizawa, Teruo Doi, Takafumi Yuasa | 1998-08-11 |
| 5371805 | Speaker and speaker system employing the same | Shuji Saiki, Satoshi Koura | 1994-12-06 |
| 5325435 | Sound field offset device | Toshihiko Date, Shuji Saiki | 1994-06-28 |
| 5150418 | Speaker system | Hiroyuki Takewa, Shuji Saiki, Kazue Satoh | 1992-09-22 |
| 4930596 | Loudspeaker system | Syuji Saiki, Kazue Sato | 1990-06-05 |