Issued Patents All Time
Showing 26–48 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4982624 | Hydraulic control device for automatic transmission for vehicle having friction engaging means operative in two jumping apart speed stages | Hiroshi Itoh, Tokuyuki Takahashi, Makoto Funahashi | 1991-01-08 |
| 4928557 | Hydraulic transmission controller with coupling pressure compensation | Tokuyuki Takahashi, Hiroshi Itoh | 1990-05-29 |
| 4920829 | Hydraulic pressure control device for automatic transmission for vehicle including reverse stage and lock-up clutch control systems | Hiroshi Itoh, Tokuyuki Takahashi | 1990-05-01 |
| 4872115 | Apparatus for controlling continuously variable transmission | Hiroshi Itoh | 1989-10-03 |
| 4867262 | Four wheel drive system for vehicle | Hiroshi Itoh, Tokuyuki Takahashi | 1989-09-19 |
| 4771656 | Cruise control method and apparatus for a vehicle with a continuously variable transmission | Hiroshi Itoh, Shigeki Hiramatsu | 1988-09-20 |
| 4753133 | Control system for continuously variable transmission in motor vehicle | Hiroshi Itoh | 1988-06-28 |
| 4751856 | Device for controlling 4wd vehicle central differential restriction device according to vehicle road speed and engine load, and method of operation thereof | Yasunari Nakamura | 1988-06-21 |
| 4751859 | Hydraulic control apparatus for hydraulically-operated power transmitting system having continuously variable transmission | Hiroshi Itoh, Nobuyuki Kato | 1988-06-21 |
| 4747327 | Hydraulic control apparatus for hydraulically-operated power transmitting system having continuously variable transmission | Hiroshi Itoh, Nobuyuki Kato | 1988-05-31 |
| 4702341 | Four wheel drive vehicle slippage control device and method limiting center differential action according to input torque supplied thereto | Yutaka Taga, Seitoku Kubo, Yuji Kashihara, Kunio Morisawa, Yasunari Nakamura | 1987-10-27 |
| 4698764 | Diagnostic apparatus for continuously variable transmission | Takafumi Inagaki, Hiroshi Sasaoka, Susumu Masutomi, Hiroshi Itoh | 1987-10-06 |
| 4689745 | Apparatus for controlling continuously variable transmission used in vehicle | Hiroshi Itoh, Hiroshi Sasaoka, Takahumi Inagaki, Susumu Masutomi | 1987-08-25 |
| 4682518 | Method and apparatus for controlling hydraulically-operated power transmitting system including continuously variable transmission | Hiroshi Itoh, Shigeki Hiramatsu, Tadashi Tamura | 1987-07-28 |
| 4672863 | Method and apparatus for controlling power transmission system in an automotive vehicle | Hiroshi Itoh | 1987-06-16 |
| 4669336 | Apparatus for controlling line pressure used in V-belt type continuously variable transmission for automobile | Mitsuhiko Okada, Hiroshi Itoh, Nobuyuki Kato | 1987-06-02 |
| 4663990 | Method for controlling continuously variable transmission | Hiroshi Itoh | 1987-05-12 |
| 4653353 | Spool-type control valve assembly with reduced spool stroke for hydraulic belt-and-pulley type continuously variable transmission | Hiroshi Itoh, Teruo Akashi | 1987-03-31 |
| 4637279 | Method for controlling a continuously variable transmission | Hiroshi Itoh | 1987-01-20 |
| 4628773 | Method and apparatus for controlling hydraulically-operated continuously variable transmission of belt-and-pulley type | Hiroshi Itoh, Shigeki Hiramatsu, Tadashi Tamura | 1986-12-16 |
| 4622865 | Apparatus for controlling continuously variable transmission when accelerating from low speeds | Hiroshi Itoh | 1986-11-18 |
| 4594916 | Method for controlling an engine installed with continuously variable transmission | Hiroshi Ito, Shigeki Hiramatsu | 1986-06-17 |
| 4569254 | Method for controlling an engine installed with continuously variable transmission | Hiroshi Itoh, Shigeki Hiramatsu | 1986-02-11 |