Issued Patents All Time
Showing 76–91 of 91 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5097364 | Magnetic recording and reproducing apparatus and method of recording and reproducing | Manabu Tsukamoto, Masayuki Ishida, Yoshinobu Ishida | 1992-03-17 |
| 5045527 | Method of producing a superconductive oxide conductor | Yoshimitsu Ikeno, Osamu Kohno, Atsushi Kume, Shin'ya Aoki, Nobuyuki Sadakata +4 more | 1991-09-03 |
| 4466405 | Feedback type ignition timing control system for internal combustion engines | Tadashi Hattori, Hiroaki Yamaguchi, Yoshinori Ootsuka, Daisaku Sawada | 1984-08-21 |
| 4385606 | Ignition timing regulating device for internal combustion engine | Tadashi Hattori, Daisaku Sawada, Takashi Shigematu, Hiroaki Yamaguchi, Minoru Nishida | 1983-05-31 |
| 4328779 | Feedback type ignition timing control system for internal combustion engines | Tadashi Hattori, Hiroaki Yamaguchi, Yoshinori Ootsuka, Daisaku Sawada | 1982-05-11 |
| 4290398 | Ignition timing control system for internal combustion engine | Tadashi Hattori, Daisaku Sawada, Takashi Shigematu, Hiroaki Yamaguchi, Minoru Nishida +1 more | 1981-09-22 |
| 4274379 | Method and system for controlling ignition timing of internal combustion engines | Toshiharu Iwata, Tadashi Hattori, Siniti Mukainakano, Daisaku Sawada | 1981-06-23 |
| 4269154 | Ignition timing control system for internal combustion engines | Toshiharu Iwata, Tadashi Hattori, Siniti Mukainakano, Daisaku Sawada | 1981-05-26 |
| 4269155 | Ignition timing control system for internal combustion engines | Toshiharu Iwata, Tadashi Hattori, Siniti Mukainakano, Daisaku Sawada | 1981-05-26 |
| 4261313 | Method of and apparatus for controlling ignition timing of an internal-combustion engine | Toshiharu Iwata, Tadashi Hattori, Siniti Mukainakano, Daisaku Sawada | 1981-04-14 |
| 4245591 | Ignition timing control system for internal combustion engines | Minoru Nishida, Tadashi Hattori, Hiroaki Yamaguchi, Daisaku Sawada, Takashi Shigematu | 1981-01-20 |
| 4236491 | Ignition timing control apparatus for internal combustion engines | Tadashi Hattori, Daisaku Sawada, Takashi Shigematu, Hiroaki Yamaguchi, Minoru Nishida +1 more | 1980-12-02 |
| 4232642 | Ignition timing control system for internal combustion engines | Hiroaki Yamaguchi, Tadashi Hattori, Minoru Nishida, Daisaku Sawada, Takashi Shigematu | 1980-11-11 |
| 4225802 | Piezoelectric knocking detector for internal combustion engine | Yutaka Suzuki, Osamu Ito, Nobuhito Hobo, Daisaku Sawada, Takashi Shigematu +1 more | 1980-09-30 |
| 4211194 | Ignition system for internal combustion engines | Tadashi Hattori, Daisaku Sawada, Takashi Shigematu, Yuji Takeda, Hiroaki Yamaguchi +1 more | 1980-07-08 |
| 4205040 | Exposed aggregate finishing method for concrete | Tsuyoshi Aoyama, Yoshimasa Hayashi, Hirotaka Toba, Akira Yoshida, Motoaki Kawakama | 1980-05-27 |