Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4406258 | Helically-shaped intake port of an internal combustion engine | Katsuhiko Motosugi, Hiroshi Takahashi | 1983-09-27 |
| 4336776 | Swirl-inducing apparatus for internal combustion engines | Masaharu Sumiyoshi, Katsuhiko Motosugi, Hiroshi Takahashi, Shuhei Toyoda | 1982-06-29 |
| 4294213 | Fuel supplying device for use in fuel injection type internal combustion engine | Masaharu Sumiyoshi, Katsuhiko Motosugi, Junzo Uozumi, Tsuneo Ando, Yuzo Takeuchi +1 more | 1981-10-13 |
| 4256063 | Intake system of a multi-cylinder internal combustion engine | Masaharu Sumiyoshi, Katsuhiko Motosugi | 1981-03-17 |
| 4254747 | Intake system of a multi-cylinder internal combustion engine | Masaharu Sumiyoshi, Katsuhiko Motosugi | 1981-03-10 |
| 4253440 | Fuel supply apparatus for internal combustion engines | Masaharu Sumiyoshi, Katsuhiko Motosugi, Junzo Uozumi, Tsuneo Ando, Yuzo Takeuchi +1 more | 1981-03-03 |
| 4237826 | Multi-cylinder internal combustion engine equipped with an accumulation chamber | Katsuhiko Motosugi, Hidetaka Nohira, Sumio Ito, Hisashi Ohki, Teruo Kumai | 1980-12-09 |
| 4235210 | Fuel supply apparatus for internal combustion engines | Masaharu Sumiyoshi, Katsuhiko Motosugi, Junzo Uozumi, Tsuneo Ando, Yuzo Takeuchi +1 more | 1980-11-25 |
| 4211201 | Fuel supply apparatus for internal combustion engines | Masaharu Sumiyoshi, Katsuhiko Motosugi, Junzo Uozumi, Tsuneo Ando, Yuzo Takeuchi +1 more | 1980-07-08 |
| 4207849 | Air-fuel ratio control apparatus of a fuel supply system for an internal combustion engine | Masaharu Sumiyoshi, Katsuhiko Motosugi, Junzo Uozumi, Tsuneo Ando, Yuzo Takeuchi +1 more | 1980-06-17 |
| 4206599 | Internal combustion engine | Masaharu Sumiyoshi, Katsuhiko Motosugi, Junzo Uozumi, Tsuneo Ando, Yuzo Takeuchi +1 more | 1980-06-10 |
| 4194478 | Air-fuel ratio control system for an internal combustion engine | Masaharu Sumiyoshi, Katsuhiko Motosugi, Junzo Uozumi, Tsuneo Ando, Yuzo Takeuchi +1 more | 1980-03-25 |
| 4187816 | Air-fuel ratio controlling system for an internal combustion engine | Masaharu Sumiyoshi, Katsuhiko Motosugi, Junzo Uozumi, Tsuneo Ando, Yuzo Takeuchi +1 more | 1980-02-12 |