Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6935302 | In-cylinder injection type internal combustion engine | Toshimi Kashiwagura, Masaharu Ichise, Takashi Hashima, Hiroshi Nomura | 2005-08-30 |
| 6651615 | Direct fuel injection-type spark-ignition internal combustion engine | Hisao Suzuki, Terutoshi Tomoda, Toshimi Kashiwagura, Fumito Chiba, Sachio Mori +1 more | 2003-11-25 |
| 6629518 | Direct cylinder injection-type spark ignition internal combustion engine | Toyokazu Baika, Tatsuo Kobayashi, Fumiaki Hattori, Takashi Hashima, Hiroyuki Hokuto +5 more | 2003-10-07 |
| 6615794 | Direct cylinder injection-type spark ignition internal combustion engine | Toyokazu Baika, Tatsuo Kobayashi, Fumiaki Hattori, Takashi Hashima, Hiroyuki Hokuto +5 more | 2003-09-09 |
| 6363909 | Direct-fuel-injection-type spark-ignition internal combustion engine and method of fuel injection | Terutoshi Tomoda, Takashi Usui, Toshimi Kashiwagura | 2002-04-02 |
| 6349697 | Direct-fuel-injection-type spark-ignition internal combustion engine and method of controlling the internal combustion engine | Chiemi Sasaki | 2002-02-26 |
| 6341591 | Direct fuel injection-type spark ignition internal combustion engine | Yasuhito Tsutsumi, Toyokazu Baika, Tatehito Ueda, Takeshi Okumura, Toshimi Kashiwagura +1 more | 2002-01-29 |
| 6336437 | Direct cylinder injection-type spark ignition internal combustion engine | Toyokazu Baika, Tatsuo Kobayashi, Fumiaki Hattori, Takashi Hashima, Hiroyuki Hokuto +5 more | 2002-01-08 |
| 6289870 | Direct fuel injection-type spark-ignition internal combustion engine | Rio Shimizu, Toshimi Kashiwagura, Fumiaki Hattori | 2001-09-18 |
| 6257199 | Direct fuel injection-type spark-ignition internal combustion engine | Toshimi Kashiwagura, Fumiaki Hattori, Yoshihiro Nomura | 2001-07-10 |
| 6186113 | Direct cylinder injection-type spark ignition internal combustion engine | Fumiaki Hattori, Hiroyuki Hokuto, Toshimi Kashiwagura, Makoto Koike, Tetsunori Suzuoki | 2001-02-13 |
| 5649513 | Combustion chamber of internal combustion engine | — | 1997-07-22 |
| 4762102 | Intake device of an internal combustion engine | — | 1988-08-09 |
| 4730579 | Internal combustion engine cylinder head with port coolant passage independent of and substantially wider than combustion chamber coolant passage | Toshio Yamada, Yoshihiro Iwashita, Takeshi Okumura | 1988-03-15 |
| 4700665 | Cylinder head with coolant passage passing around outside of cylinder head fixing bolt boss and directing coolant flow toward squish area cooling passage portion | Takeshi Okumura, Yoshihiro Iwashita | 1987-10-20 |
| 4690105 | Cylinder head with coolant passage following squish area and of generally uniform cross sectional area | — | 1987-09-01 |
| 4530312 | Piston with crown cooling cavity and radial ribs formed therein | Souichi Matsushita, Kiyoshi Nakanishi | 1985-07-23 |
| 4506632 | Piston assembly with cooling lubricant reservoir defining member engaged to piston pin mounting bosses | Tokuta Inoue, Souichi Matsushita, Kiyoshi Nakanishi | 1985-03-26 |
| 4505233 | Piston assembly with cooling lubricant reservoir defining member with a deep narrow reservoir and a shallow wide reservoir | Souichi Matsushita, Kiyoshi Nakanishi, Tokuta Inoue | 1985-03-19 |
| 4503819 | Helically-shaped intake port of an internal-combustion engine | Takeshi Okumura, Kiyoshi Nakanishi, Takeshi Kotani, Tokuta Inoue | 1985-03-12 |
| 4499868 | Intake device of an internal combustion engine | Kiyoshi Nakanishi, Tokuta Inoue, Mikio Nakajima | 1985-02-19 |
| 4485775 | Helically-shaped intake port of an internal-combustion engine | Kiyoshi Nakanishi, Takeshi Okumura, Takeshi Kotani, Tokuta Inoue | 1984-12-04 |
| 4485773 | Helically-shaped intake port of an internal-combustion engine | Kiyoshi Nakanishi, Tokuta Inoue | 1984-12-04 |
| 4485774 | Helically-shaped intake port of an internal-combustion engine | Kiyoshi Nakanishi, Takeshi Okumura, Takeshi Kotani, Tokuta Inoue | 1984-12-04 |
| 4481915 | Helically-shaped intake port of an internal combustion engine | Kiyoshi Nakanishi, Takeshi Okumura, Takeshi Kotani, Tokuta Inoue | 1984-11-13 |