Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11710423 | Endoscope manipulation training apparatus | Yoshiaki Ito | 2023-07-25 |
| 8457344 | Speaker device | Hiroyuki Kobayashi, Toshihiro Hikichi, Minoru Horigome | 2013-06-04 |
| 8235167 | Vibrating body for speaker and speaker device | Hiroyuki Kobayashi, Toshihiro Hikichi, Takuei Nagasawa, Koji Takayama, Koji Maekawa +2 more | 2012-08-07 |
| 8139813 | Speaker device | Hiroyuki Kobayashi, Toshihiro Hikichi, Minoru Horigome | 2012-03-20 |
| 7653209 | Speaker apparatus | Hiroyuki Kobayashi | 2010-01-26 |
| 7284637 | Low-frequency sound reproducing speaker apparatus | Chuichi Endo, Koji Nakane, Yumi Takigami | 2007-10-23 |
| 6929092 | Speaker diaphragm | Takashi Suzuki, Koji Matsumoto, Koji Takayama | 2005-08-16 |
| 6817084 | Method for manufacturing a speaker apparatus | Takeshi Tokusho, Fumio Murayama | 2004-11-16 |
| 6814181 | Electrically conductive damper device for speaker | Koji Matsumoto, Koji Takayama, Hiroyuki Tomiyama | 2004-11-09 |
| 6788799 | Speaker device and associated method for manufacturing the speaker device | Toshihiro Ishigaki, Yoshitaka Kobayashi | 2004-09-07 |
| 6590990 | Speaker apparatus | Takashi Suzuki, Koji Matsumoto | 2003-07-08 |
| 6343136 | Speaker apparatus and manufacturing method thereof | Takeshi Tokusho, Fumio Murayama | 2002-01-29 |
| 5104833 | Refractory for casting a basic substance | Osami Matsumoto, Toshihiro Isobe, Hisashi Matsuoka | 1992-04-14 |