Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5212736 | Ribbon speaker | — | 1993-05-18 |
| 5200760 | Thermal head for a thermal printer | Takashi Ujihara | 1993-04-06 |
| 5135819 | Photomagnetic memory medium having a non-columnar structure | Hiroshi Ito, Masahiko Naoe | 1992-08-04 |
| 4518443 | Acoustic diaphragm | Shinichi Yokozeki, Masami Kimura | 1985-05-21 |
| 4404315 | Molding compositions and diaphragms, arm pipes and head shells molded therefrom | Etsuro Nemoto, Shinichi Yokozseki, Sumio Hagiwara, Toshikazu Yoshino, Yasuyuki Arai +1 more | 1983-09-13 |
| 4395814 | Acoustic vibrating element of graphite and method of manufacturing same | Teruo Tohma, Shinichi Yokozeki | 1983-08-02 |
| 4366205 | Tone-arm elements | Shinichi Yokozeki, Sumio Hagiwara, Masataka Uchidoi, Toshikazu Yoshino, Yasuyuki Arai | 1982-12-28 |
| 4362772 | Vibratory elements for audio equipment | Shinichi Yokozeki, Sumio Hagiwara, Masataka Uchidoi, Toshikazu Yoshino, Yasuyuki Arai | 1982-12-07 |
| 4352407 | Diaphragms for acoustic instruments and method of producing the same | Shinichi Yokozeki, Toshikazu Yoshino, Yasuyuki Arai | 1982-10-05 |
| 4351412 | Diaphragm for acoustic instruments and method of manufacturing the same | Isao Yamamuro | 1982-09-28 |
| 4343376 | Vibratory elements for audio equipment | Shinichi Yokozeki, Sumio Hagiwara, Masataka Uchidoi, Toshikazu Yoshino, Yasuyuki Arai | 1982-08-10 |
| 4341838 | Molding compositions and diaphragms, arm pipes and head shells molded therefrom | Kunio Imai, Shinichi Yokozeki, Toshikazu Yoshino, Yasuyuki Arai | 1982-07-27 |
| 4269416 | Head shell for record player tonearms | Toshikazu Yoshino, Yasuyuki Arai, Shinichi Yokozeki | 1981-05-26 |
| 4261580 | Arm pipe for record player tonearms | Shinichi Yokozeki, Toshikazu Yoshino, Yasuyuki Arai | 1981-04-14 |
| 4254184 | Vibrating member for acoustic transducer and method for manufacturing the same | Shin Suzuki, Hitomi Ogino | 1981-03-03 |
| 4221773 | Method of producing a carbon diaphragm for an acoustic instrument | Teruo Toma, Shinichi Yokozeki, Toshikazu Yoshino | 1980-09-09 |
| 4196022 | Surface hardening method | Teruo Tohma, Toshikazu Yoshino | 1980-04-01 |