YH

Yoichi Hayakawa

AI Aisin-Warner: 35 patents #1 of 98Top 2%
TO Toyota: 22 patents #976 of 26,838Top 4%
OD Oki Data: 12 patents #49 of 635Top 8%
AC Aisin Aw Co.: 10 patents #174 of 2,011Top 9%
FC Fuji Medical Instruments Mfg. Co.: 1 patents #7 of 22Top 35%
KA Kabushiki Kaisha Aichi: 1 patents #14 of 38Top 40%
Overall (All Time): #40,633 of 4,157,543Top 1%
59
Patents All Time

Issued Patents All Time

Showing 51–59 of 59 patents

Patent #TitleCo-InventorsDate
4547178 Control system for an automatic transmission for a vehicle Shoji Yokoyama, Yasunobu Ito 1985-10-15
4545779 Power transmission endless belt Shiro Sakakibara 1985-10-08
4503927 Hydraulic control system for four-wheel drive transfer mechanism for vehicles Yasunobu Ito 1985-03-12
4484654 Torque transfer mechanism for a four-wheel drive vehicle 1984-11-27
4458557 Four-wheel drive transfer apparatus for automobile's automatic transmission 1984-07-10
4444073 Torque transfer mechanism with hydraulic control system for a four wheel drive vehicle Shuzo Moroto 1984-04-24
4442729 Lubricating system for four-wheel drive torque transfer mechanism 1984-04-17
4369671 Torque transfer mechanism with hydraulic control system for a four wheel drive vehicle Goichi Matsumoto 1983-01-25
4367661 Transmission for four-wheel drive vehicles Shuzo Moroto, Goichi Matsumoto 1983-01-11