Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6118930 | Apparatus for recording digital signals by controlling frequency characteristics of digital signals utilizing bit extraction and interleaved NRZI modulation | Shinji Hamai, Yasunori Kawakami | 2000-09-12 |
| 5892982 | External expansion bus interface circuit for connecting a micro control unit, and a digital recording and reproducing apparatus incorporating said interface circuit | Makoto Mitsuda, Akihiko Nakamura, Katsuyuki Tamai, Tsutomu Miyoshi, Masafumi Sato +1 more | 1999-04-06 |
| 5825567 | Apparatus for recording digital signals by controlling frequency characteristics of digital signals utilizing bit extraction and interleaved NRZI molulation | Shinji Hamai, Yasunori Kawakami | 1998-10-20 |
| 5579182 | Apparatus for recording digital signals superposed with controlled frequency components | Shinji Hamai, Yasunori Kawakami | 1996-11-26 |
| 5028656 | Resin composition, and molded articles therefrom | Akikzau Amgai, Haruaki Eto, Yasuo Tanaka | 1991-07-02 |
| 5026764 | Resin composition based on modified polyphenylene ether and polyphenylene sulfide, and molded articles therefrom | Akikzau Amgai, Haruaki Eto, Yasuo Tanaka | 1991-06-25 |
| 4686131 | Silylated polyphenylene ether membrane for gas separation | Akitoshi Sugio, Masamichi Mizukami, Yoshihiko Sekine | 1987-08-11 |
| 4683255 | Polyphenylene ether resin composition having excellent fire retardancy | Akitoshi Sugio, Akikazu Amagai | 1987-07-28 |
| 4663376 | Polyphenylene ether resin composition | Akitoshi Sugio, Toshihiko Kobayashi | 1987-05-05 |
| 4614773 | Novel polyphenylene ether resin composition | Akitoshi Sugio, Akikazu Amagai | 1986-09-30 |
| 4532306 | Polyphenylene ether resin composition | Akitoshi Sugio | 1985-07-30 |
| 4489186 | Polyphenylene ether resin composition | Akitoshi Sugio, Masanobu Masu, Eiji Ukita | 1984-12-18 |
| 4472546 | Polyphenylene ether resin composition | Akitoshi Sugio, Masanobu Masu, Eiji Ukita | 1984-09-18 |
| 4427814 | Polyphenylene ether resin composition having improved heat stability | Akitoshi Sugio, Masanobu Masu, Yukio Sasaki, Kozo Ishiyama | 1984-01-24 |
| 4392744 | Method of and apparatus for determining angular and transversal displacements of shield machine and succeeding pipe | Tetsuro Tatsuhama | 1983-07-12 |
| 4383066 | Polyphenylene ether resin composition | Akitoshi Sugio, Masanobu Masu, Kozo Ishiyama | 1983-05-10 |
| 4341879 | Polyphenylene ether resin composition having improved heat stability and impact strength | Akitoshi Sugio, Masanobu Masu, Masatugu Matunaga, Kozo Ishiyama | 1982-07-27 |