Issued Patents All Time
Showing 1–25 of 81 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6864652 | Drive system for automotive vehicle of front-and-rear wheel drive type | Tadanobu Kumagai, Toshifumi Sakai, Naoyuki Sakai, Akihiro Ohno | 2005-03-08 |
| 5895333 | Hybrid vehicle drive system, wherein mechanism for synthesizing engine and motor outputs is disposed adjacent to transmission | Kunio Morisawa, Yutaka Taga | 1999-04-20 |
| 5875691 | Hybrid drive system | Hiroshi Hata, Yutaka Taga, Ryuji Ibaraki | 1999-03-02 |
| 5856709 | Hybrid vehicle drive system having clutch between engine and synthesizing/distributing mechanism which is operatively connected to motor/generator | Ryuji Ibaraki, Yutaka Taga, Hiroshi Hata, Tsuyoshi Mikami, Hideaki Matsui | 1999-01-05 |
| 5789882 | Vehicle control apparatus adapted to select engine-or motor-drive mode based on physical quantity reflecting energy conversion efficiencies in motor-drive mode | Ryuji Ibaraki, Yutaka Taga, Hiroshi Hata, Atsushi Tabata | 1998-08-04 |
| 5769749 | Automatic transmission | Makoto Funahashi, Hiroshi Ito, Teruhumi Miyazaki | 1998-06-23 |
| 5725064 | Hybrid vehicle with pumping loss reducing function | Ryuji Ibaraki, Yutaka Taga | 1998-03-10 |
| 5722911 | Vehicle control apparatus adapted to charge energy storage device by generator driven by surplus engine power which changes with required vehicle drive force | Ryuji Ibaraki, Yutaka Taga | 1998-03-03 |
| 5411451 | Control system for controlling the pressure of the oncoming servo hydraulic pressure based on a predicted time to sync from output shaft acceleration in automatic transmission | Masahiko Ando, Koji Noda, Yoshihisa Yamamoto, Masahiro Hayabuchi, Kazumasa Tsukamoto +3 more | 1995-05-02 |
| 5368531 | Control method of and system thereof for inversely proportionally raising and lowering servo hydraulic pressure, based on input torque, for engaging and disengaging frictional elements in automatic transmission | Masahiko Ando, Koji Noda, Yoshihisa Yamamoto, Masahiro Hayabuchi, Kazumasa Tsukamoto +3 more | 1994-11-29 |
| 5334114 | Control system for servo hydraulic pressure in vehicular automatic transmission | Masahiko Ando, Koji Noda, Yoshihisa Yamamoto, Masahiro Hayabuchi, Kazumasa Tsukamoto +3 more | 1994-08-02 |
| 5254053 | Five-speed automatic transmission | Takao Taniguchi, Kazumasa Tsukamoto, Masahiro Hayabuchi, Masanori Kadotani, Masahiko Ando +3 more | 1993-10-19 |
| 5235877 | Shift control apparatus for automatic transmission | Tokuyuki Takahashi, Yasunari Nakamura, Kagenori Fukumura, Kohjiroh Kuramochi, Takashi Ohta +2 more | 1993-08-17 |
| 5052247 | Hydraulic control apparatus for belt-and-pulley type continuously variable transmission, incorporating fail-safe protective means | Nobuyuki Kato, Katsumi Kouno, Tetsuya Abe, Hiroshi Itoh, Kunio Morisawa +1 more | 1991-10-01 |
| 4963124 | Planetary gear transmission for motor vehicle | Tokuyuki Takahashi, Hiroshi Itoh, Masayuki Fukai | 1990-10-16 |
| 4944719 | Planetary gear type speed change device having one-way clutch operable in two functions | Tokuyuki Takahashi, Hiroshi Ito | 1990-07-31 |
| 4940446 | Coupling structure for a rotating member and a shaft | Masaki Inui, Mitsuhiko Okada, Shozoh Okuda, Masaki Hosono | 1990-07-10 |
| 4938096 | Automatic transmission for vehicle having forward clutch and counter drive gear positioned between torque converter and gear mechanism | Tokuyuki Takahashi, Masahumi Kinoshita, Hiroshi Itoh | 1990-07-03 |
| 4911260 | Four-wheel drive vehicle | Masakatsu Miura, Tatsuya Iwatsuki | 1990-03-27 |
| 4909345 | Power transmission device for four wheel drive vehicles | Tatsuya Iwatsuki, Takenori Kano, Fumitomo Yokoyama, Yasunari Nakamura, Isamu Minemoto +2 more | 1990-03-20 |
| 4896739 | Four-wheel drive vehicle | Masakatsu Miura, Tatsuya Iwatsuki | 1990-01-30 |
| 4890512 | Hydraulic servo for friction coupling element of automatic transmission | Takenori Kano, Koji Kobayashi, Koji Sumiya, Kazuaki Watanabe | 1990-01-02 |
| 4882952 | Hydraulic control system for automatic transmission with shifting shock reducing means | Yuji Kashihara, Yutaka Taga | 1989-11-28 |
| 4881725 | Accumulator piston having a coil spring secured thereto | Yasuhiro Shioda, Shinya Nakamura, Makoto Funahashi | 1989-11-21 |
| 4879921 | Transaxle casing for automatic transmission | Toshiyuki Asada, Shinya Nakamura, Masafumi Kinoshita, Takaaki Kuroda | 1989-11-14 |