Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4481915 | Helically-shaped intake port of an internal combustion engine | Kiyoshi Nakanishi, Takeshi Okumura, Mutsumi Kanda, Takeshi Kotani | 1984-11-13 |
| 4481916 | Helically-shaped intake port of an internal combustion engine | Kiyoshi Nakanishi, Takeshi Okumura, Mutsumi Kanda, Takeshi Kotani | 1984-11-13 |
| 4478182 | Helically-shaped intake port of an internal combustion engine | Kiyoshi Nakanishi, Takeshi Okumura, Mutsumi Kanda, Takeshi Kotani | 1984-10-23 |
| 4473040 | Flow control device of a helically-shaped intake port for use in a diesel engine | Masahito Shibata, Kiyoshi Nakanishi, Takeshi Okumura, Mutumi Kanda | 1984-09-25 |
| 4466398 | Flow control device of a helically-shaped intake port | Kiyoshi Nakanishi, Takeshi Okumura | 1984-08-21 |
| 4438741 | Device for controlling a flow in a helical type intake port | Takeshi Okumura, Kiyoshi Nakanishi | 1984-03-27 |
| 4411226 | Intake system for an internal combustion engine | Takeshi Okumura, Kiyoshi Nakanishi | 1983-10-25 |
| 4350125 | Fuel injection type internal combustion engine | Mutsumi Kanda, Kiyoshi Nakanishi | 1982-09-21 |
| 4344408 | Cylinder head, spark plug, and piston configuration | Kiyoshi Nakanishi, Mutsumi Kanda, Masahiko Nakada, Toshiharu Matsuura | 1982-08-17 |
| 4302405 | Variable venturi type carburetor | Norihiko Nakamura, Takaaki Itoh | 1981-11-24 |
| 4272460 | Variable venturi type carburetor | Noboru Watanabe, Kiyohiko Oishi | 1981-06-09 |
| 4264537 | Variable venturi type carburetor | Noboru Watanabe, Kiyohiko Oishi | 1981-04-28 |
| 4259935 | Fuel injection type throttle valve | Noboru Watanabe, Masaki Mitsuyasu | 1981-04-07 |
| 4242997 | Exhaust gas recirculation system for internal combustion engines | Tokio Kohama, Takeshi Matsui, Akira Nishimatsu, Kiyohiko Oishi, Kiyoshi Kobashi | 1981-01-06 |
| 4216753 | Fuel air mixture supply system for use in fuel-injection-type internal combustion engine | Takatoshi Masui, Masaki Mitsuyasu, Shigetaka Takada, Masayuki Okamura | 1980-08-12 |