Issued Patents All Time
Showing 26–47 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5734131 | Speaker mount structure of vehicle | — | 1998-03-31 |
| 5717775 | Voice coil and loudspeaker structure | Itsuki Kawabata | 1998-02-10 |
| 5701657 | Method of manufacturing a repulsion magnetic circuit type loudspeaker | — | 1997-12-30 |
| 5701357 | Loudspeaker structure with a diffuser | Shinta Matsuo | 1997-12-23 |
| 5682436 | Multipoint driving loudspeaker having repulsion magnetic-type driving unit | Toshitaka Kawamidori | 1997-10-28 |
| 5668886 | Loudspeaker structure | Shuhei Ohta | 1997-09-16 |
| 5594805 | Loudspeaker | Shiro Iwakura, Akio Tanase, Kaoru Yamazaki | 1997-01-14 |
| 5590210 | Loudspeaker structure and method of assembling loudspeaker | Shinta Matsuo | 1996-12-31 |
| 5550332 | Loudspeaker assembly | — | 1996-08-27 |
| 5452366 | Loudspeaker | Hiroyuki Kumakura | 1995-09-19 |
| 5399081 | Film molding apparatus | — | 1995-03-21 |
| 5283027 | Method of molding an acoustic diaphragm part of para aromatic polyamide | Syuhei Ohta, Yuji Yabuki, Shigemitsu Muraoka | 1994-02-01 |
| 5273705 | Film molding method | — | 1993-12-28 |
| 5249236 | Wiring structure of loudspeaker | — | 1993-09-28 |
| 5234501 | Oxidation metod | Ken Nakao, Sadao Maruchi | 1993-08-10 |
| 5191697 | Loudspeaker damper and method of manufacturing the same | Akihiko Haga | 1993-03-09 |
| 5125473 | Speaker damper configuration | Akihiko Haga | 1992-06-30 |
| 5091958 | Wiring structure of loudspeaker | Shiro Iwakura | 1992-02-25 |
| 4954684 | Vertical type heat-treating apparatus and heat-treating method | Kazutsugu Aoki, Noboru Fuse | 1990-09-04 |
| 4799266 | Electroacoustic converter | Kaoru Yamazaki | 1989-01-17 |
| 4752963 | Electroacoustic converter having a recessed step on the center pole | Kaoru Yamazaki, Shiro Iwakura, Masatoshi Kunii, Toshihiro Hayashi | 1988-06-21 |
| 4617284 | Catalyst component for polymerization of olefins and process for production thereof | Mitsuyuki Matsuura, Takashi Fujita | 1986-10-14 |