HF

Hirotaka Fukushima

YA Yazaki: 50 patents #33 of 3,427Top 1%
EX Exedy: 37 patents #3 of 223Top 2%
DS Daikin Seisakusho: 28 patents #2 of 126Top 2%
Canon: 9 patents #6,722 of 19,416Top 35%
TO Toyota: 3 patents #8,352 of 26,838Top 35%
DC Daikin Clutch: 2 patents #6 of 22Top 30%
Fujitsu Limited: 2 patents #10,930 of 24,456Top 45%
TI Toyota Industries: 1 patents #904 of 1,610Top 60%
📍 Kakegawa, JP: #1 of 302 inventorsTop 1%
Overall (All Time): #8,682 of 4,157,543Top 1%
128
Patents All Time

Issued Patents All Time

Showing 51–75 of 128 patents

Patent #TitleCo-InventorsDate
6481552 Clutch apparatus 2002-11-19
6478127 Hydraulic torque transmitting device 2002-11-12
6264564 Power transfer apparatus having a vibration dampening mechanism which provides structural support for the apparatus Koji Kajitani, Hiroyoshi Tsuruta, Masanobu Fukamachi 2001-07-24
6257383 Lockup damper, lockup mechanism and damper mechanism of torque converter Mamoru Ohkubo 2001-07-10
6171192 Flywheel assembly employing a damper mechanism having an annular chamber filled with a dry lubricant Kazuhiro Yamashita 2001-01-09
6149525 Power transfer apparatus having a vibration dampening mechanism which provides structural support for the apparatus Koji Kajitani, Hiroyoshi Tsuruta, Masanobu Fukamachi 2000-11-21
6145820 Fluid filled dampening mechanism utilizing a fluid having a thick viscosity 2000-11-14
6123569 Charging connector for electric vehicle Toshiaki Hasegawa 2000-09-26
6079531 Lockup damper, lockup mechanism and damper mechanism of torque converter Mamoru Ohkubo 2000-06-27
6056096 Dynamic damper and flywheel assembly 2000-05-02
6056102 Lockup damper, lockup mechanism and damper mechanism of torque converter Mamoru Ohkubo 2000-05-02
6044942 Dynamic damper and flywheel assembly 2000-04-04
6042396 Terminal treatment structure of a shield wire Takayoshi Endo, Kazuhisa Ishizaki, Shigemi Hashizawa, Toshiaki Hasegawa 2000-03-28
6039651 Flex plate and flywheel configuration Mitsuhiko Takenaka 2000-03-21
6032773 Dynamic damper and flywheel assembly 2000-03-07
6015033 Dynamic damper and flywheel assembly 2000-01-18
6006882 Dynamic damper and flywheel assembly 1999-12-28
5997402 Power transfer apparatus having a vibration dampening mechanism which provides structural support for the apparatus Koji Kajitani, Hiroyoshi Tsuruta, Masanobu Fukamachi 1999-12-07
5992596 Clutch apparatus having a vibration dampening mechanism, a reduced axial thickness and an undulated spring disposed within the vibration dampening mechanism 1999-11-30
5992589 Torque converter having both a lock-up clutch and a disengaging clutch mechanism 1999-11-30
5967278 Dynamic damper and flywheel assembly Kozo Yamamoto 1999-10-19
5941354 Lockup damper of torque converter Hiroshi Mizukami, Mamoru Ohkubo 1999-08-24
5937978 Torque converter having both a lock-up clutch and a disengaging clutch mechanism 1999-08-17
5881852 Torque converter having both a lock-up clutch and a disengaging clutch mechanism 1999-03-16
5868624 Flex plate and flywheel configuration Mitsuhiko Takenaka 1999-02-09