Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9399455 | Device for controlling distribution force in a four-wheel drive vehicle | Osamu Sugitani, Kotaro Tanaka | 2016-07-26 |
| 7780563 | Drive force distribution apparatus | — | 2010-08-24 |
| 7033303 | Transfer drive mode switching control system | Osamu Sugitani | 2006-04-25 |
| 6454070 | Drain mechanism for hydraulic power transmission joint | Hiroyuki Nakano, Tadahiko Kato, Akira Nakabayashi, Hirotaka Kusukawa, Shigeo Murata | 2002-09-24 |
| 6422368 | Hydraulic power transmission joint | Hidemitsu Sumino, Tadahiko Kato, Akira Nakabayashi, Hirotaka Kusukawa, Shigeo Murata | 2002-07-23 |
| 6382380 | Hydraulic power transmission joint | Kazuhisa Shimada, Tadahiko Kato, Yoshiaki Tajima, Hirotaka Kusukawa, Shigeo Murata | 2002-05-07 |
| 6341682 | Hydraulic power transmission joint | Kazuhisa Shimada, Tadahiko Kato, Masaki Nakamura, Hirotaka Kusukawa, Shigeo Murata | 2002-01-29 |
| 6336539 | Drain mechanism for hydraulic power transmission joint | Hiroyuki Nakano, Kazuhisa Shimada, Tadahiko Kato, Hirotaka Kusukawa, Shigeo Murata | 2002-01-08 |
| 6293381 | Hydraulic power transmission joint | Kazuhisa Shimada, Tadahiko Kato, Hirotaka Kusukawa, Shigeo Murata | 2001-09-25 |
| 6283264 | Hydraulic power transmission joint | Tadahiko Kato, Kazuhisa Shimada, Hiroyuki Nakano, Kiyonori Hirao, Yoshiaki Tajima +2 more | 2001-09-04 |
| 6257387 | Hydraulic power transmission joint | Kazuhisa Shimada, Tadahiko Kato, Kiyonori Hirao, Hirotaka Kusukawa, Shigeo Murata | 2001-07-10 |
| 6244386 | Lubrication apparatus in power transmission unit | Hirotaka Kusukawa | 2001-06-12 |
| 6070685 | Four wheel drive system for automotive vehicle | Tomoyuki Hara | 2000-06-06 |
| 5839084 | Driving-torque control system for four-wheel-drive vehicle | Tomoyuki Hara | 1998-11-17 |
| 5819194 | System for controlling four-wheel drive for motor vehicle | Tomoyuki Hara | 1998-10-06 |
| 5813490 | Four Wheel drive system for automotive vehicle | Tomoyuki Hara | 1998-09-29 |
| 5811679 | Wheel Tachometer | Tomoyuki Hara | 1998-09-22 |
| 5803197 | Torque-split control system for four-wheel-drive vehicles | Tomoyuki Hara | 1998-09-08 |
| 5754970 | Driving force transfer apparatus for four-wheel drive vehicle with fail safe structure | Tomoyuki Hara | 1998-05-19 |
| 5752211 | Control system for distributing drive torque between front and rear wheels of vehicle | Tomoyuki Hara | 1998-05-12 |
| 5723779 | System for determining residual life of friction clutch | Tomoyuki Hara | 1998-03-03 |
| 5699871 | Driving force transfer apparatus for four-wheel drive vehicle | Tomoyuki Hara, Kenichi Tobita, Tsutomu Niimi, Izumi Amemiya | 1997-12-23 |
| 5687824 | Multi-plate frictional clutch structure | Tomoyuki Hara | 1997-11-18 |
| 5631829 | Automobile driving torque control system for controlling torque distribution between front and rear road wheels | Tomoyuki Hara | 1997-05-20 |
| 5599075 | Anti-skid brake control system for four-wheel drive vehicles | Tomoyuki Hara | 1997-02-04 |