Issued Patents All Time
Showing 51–75 of 79 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4675662 | Machine oil deterioration detection | Kenji Kondo, Tadashi Hattori, Kinya Atsumi | 1987-06-23 |
| 4615749 | Cold rolled dual-phase structure steel sheet having an excellent deep drawability and a method of manufacturing the same | Susumu Satoh, Hideo Suzuki, Takashi Obara, Osamu Hashimoto | 1986-10-07 |
| 4586965 | Production of a base steel sheet to be surface-treated which is to produce no stretcher strain | Takashi Obara, Kazunori Osawa, Kei Sakata, Hideo Kuguminato | 1986-05-06 |
| 4576656 | Method of producing cold rolled steel sheets for deep drawing | Susumu Satoh, Takashi Obara | 1986-03-18 |
| 4523552 | Ignition system for engine | Shinichi Mukainakano, Tadashi Hattori, Toru Mizuno, Tukasa Goto | 1985-06-18 |
| 4520781 | Ignition control system of internal combustion engine | — | 1985-06-04 |
| 4502897 | Method for producing hot-rolled steel sheets having a low yield ratio and a high tensile strength due to dual phase structure | Masahiko Morita, Junichi Mano, Tomoo Tanaka, Nobuo Aoyagi, Syoichi Takizawa | 1985-03-05 |
| 4476412 | Spark plug | Tadashi Hattori, Takanori Yanagisawa | 1984-10-09 |
| 4439707 | Spark plug with a wide discharge gap | Tadashi Hattori, Hiroaki Yamaguchi, Minoru Ohta | 1984-03-27 |
| 4439708 | Spark plug having dual gaps | Tadashi Hattori, Hiroaki Yamaguchi, Minoru Ohta | 1984-03-27 |
| 4434753 | Ignition apparatus for internal combustion engine | Shinichi Mukainakano, Tadashi Hattori, Toru Mizuno, Tukasa Goto | 1984-03-06 |
| 4416226 | Laser ignition apparatus for an internal combustion engine | Tadashi Hattori, Shinichi Mukainakano, Toru Mizuno, Tukasa Goto | 1983-11-22 |
| 4393850 | Ignition system for internal combustion engines | Tadashi Hattori, Akira Tanaka | 1983-07-19 |
| 4385606 | Ignition timing regulating device for internal combustion engine | Tadashi Hattori, Kenji Goto, Daisaku Sawada, Takashi Shigematu, Hiroaki Yamaguchi | 1983-05-31 |
| 4331899 | Spark plug | Tadashi Hattori, Akira Tanaka | 1982-05-25 |
| 4330529 | Antibacterial composition | Hiroshi Imanaka | 1982-05-18 |
| 4329615 | Spark plug for internal combustion engines | Akira Tanaka, Tadashi Hattori | 1982-05-11 |
| 4290398 | Ignition timing control system for internal combustion engine | Tadashi Hattori, Kenji Goto, Daisaku Sawada, Takashi Shigematu, Hiroaki Yamaguchi +1 more | 1981-09-22 |
| 4268503 | Antibacterial composition | Hiroshi Imanaka | 1981-05-19 |
| 4266518 | Method of controlling ignition timing for internal combustion engines and apparatus for carrying out the same | Tadashi Hattori, Hiroaki Yamaguchi | 1981-05-12 |
| 4245591 | Ignition timing control system for internal combustion engines | Tadashi Hattori, Hiroaki Yamaguchi, Kenji Goto, Daisaku Sawada, Takashi Shigematu | 1981-01-20 |
| 4236491 | Ignition timing control apparatus for internal combustion engines | Tadashi Hattori, Kenji Goto, Daisaku Sawada, Takashi Shigematu, Hiroaki Yamaguchi +1 more | 1980-12-02 |
| 4232642 | Ignition timing control system for internal combustion engines | Hiroaki Yamaguchi, Tadashi Hattori, Kenji Goto, Daisaku Sawada, Takashi Shigematu | 1980-11-11 |
| 4220125 | Ignition timing control system for internal combustion engines | Tadashi Hattori, Hiroaki Yamaguchi | 1980-09-02 |
| 4211194 | Ignition system for internal combustion engines | Tadashi Hattori, Daisaku Sawada, Kenji Goto, Takashi Shigematu, Yuji Takeda +1 more | 1980-07-08 |