Issued Patents All Time
Showing 1–25 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7862305 | Variable displacement vane pump | Hideo Konishi, Fusao Semba | 2011-01-04 |
| 5584323 | Fluid control valve | — | 1996-12-17 |
| 5032065 | Radial piston pump | Nobuteru Hitomi | 1991-07-16 |
| 4938737 | Transmission belt | — | 1990-07-03 |
| 4819514 | Pulley actuating hydraulic pressure control for continuously variable transmission | Haruyoshi Kumura | 1989-04-11 |
| 4776829 | Power transmission belt | Yoshiro Morimoto, Keiju Abo | 1988-10-11 |
| 4764155 | Method of controlling continuously variable transmission | Haruyoshi Kumura, Hiroyuki Hirano, Keiju Abo, Masaki Nakano | 1988-08-16 |
| 4736655 | Apparatus for controlling reduction ratio in continuously variable transmission | Haruyoshi Kumura, Hiroyuki Hirano, Keiju Abo, Masaki Nakano | 1988-04-12 |
| 4735113 | Creep torque and lock-up control for automatic transmission | Keiju Abo, Hiroyuki Hirano, Haruyoshi Kumura, Masaki Nakano | 1988-04-05 |
| 4679466 | Line pressure control device for hydraulic control system of automatic transmission | Haruyoshi Kumura, Keiju Abo, Hiroyuki Hirano, Masaki Nakano | 1987-07-14 |
| 4651776 | Fluid pressure control valve for hydraulic actuator | Masaki Nakano, Hiroyuki Hirano, Keiju Abo, Haruyoshi Kumura | 1987-03-24 |
| 4616530 | Hydraulic control system for automatic transmission such as a continuously variable transmission | Yoshikazu Tanaka, Haruyoshi Kumura, Keiju Abo, Hiroyuki Hirano | 1986-10-14 |
| 4603602 | Method of controlling continuously variable transmission | Yoshikazu Tanaka, Haruyoshi Kumura, Keiju Abo, Hiroyuki Hirano | 1986-08-05 |
| 4597308 | Method and apparatus for controlling reduction ratio of continuously variable transmission | Yoshikazu Tanaka, Keiju Abo, Haruyoshi Kumura, Hiroyuki Hirano, Yoshiro Morimoto | 1986-07-01 |
| 4590561 | Method and apparatus for controlling reduction ratio of continuously variable transmission with accelerator pedal displacement speed compensation | Keiju Abo, Haruyoshi Kumura, Hiroyuki Hirano, Yoshikazu Tanaka, Yoshiro Morimoto | 1986-05-20 |
| 4589071 | Method and apparatus for controlling reduction ratio of continuously variable transmission with acceleration compensation | Keiju Abo, Yoshikazu Tanaka, Haruyoshi Kumura, Hiroyuki Hirano, Yoshiro Morimoto | 1986-05-13 |
| 4584909 | Hydraulic control system for continuously variable V-belt transmission | Keiju Abo, Haruyoshi Kumura, Yoshikazu Tanaka, Hiroyuki Hirano | 1986-04-29 |
| 4583627 | Vehicle/engine operational parameter responsive clutch control | Haruyoshi Kumura, Yoshikazu Tanaka, Hiroyuki Hirano, Keiju Abo | 1986-04-22 |
| 4579021 | Method and apparatus for controlling line pressure in continuously variable transmission | Keiju Abo, Yoshikazu Tanaka, Haruyoshi Kumura, Hiroyuki Hirano, Yoshiro Morimoto | 1986-04-01 |
| 4576265 | Control system for hydraulic automatic clutch | Haruyoshi Kumura, Yoshikazu Tanaka, Keiju Abo, Hiroyuki Hirano | 1986-03-18 |
| 4566354 | Method and apparatus for controlling reduction ratio of continuously variable transmission with engine coolant temperature compensation | Haruyoshi Kumura, Keiju Abo, Yoshikazu Tanaka, Hiroyuki Hirano, Yoshiro Morimoto | 1986-01-28 |
| 4557706 | Control system for continuously variable V-belt transmission | Yoshikazu Tanaka, Keiju Abo, Hiroyuki Hirano, Haruyoshi Kumura, Yoshiro Morimoto | 1985-12-10 |
| 4545265 | Hydraulic control system for continuously variable V-belt transmission | Keiju Abo, Yoshikazu Tanaka, Haruyoshi Kumura, Hiroyuki Hirano | 1985-10-08 |
| 4543077 | Method and apparatus for controlling continuously variable V-belt transmission | Hiroyuki Hirano, Yoshiro Morimoto, Yoshikazu Tanaka | 1985-09-24 |
| 4542665 | Control system for continuously variable transmission with space saving automatic clutch control | Haruyoshi Kumura, Yoshikazu Tanaka, Keiju Abo, Hiroyuki Hirano | 1985-09-24 |