RS

Ryuzo Sakakiyama

SU Subaru: 53 patents #3 of 1,436Top 1%
VB Van Doorne'S Transmissie B.V.: 3 patents #23 of 89Top 30%
Overall (All Time): #49,598 of 4,157,543Top 2%
53
Patents All Time

Issued Patents All Time

Showing 26–50 of 53 patents

Patent #TitleCo-InventorsDate
4680712 System for controlling an electromagnetic clutch for a vehicle Toshio Takano 1987-07-14
4679674 System for engaging an electromagnetic clutch upon acceleration of an engine 1987-07-14
4675818 System for controlling an electromagnetic clutch for an automotive engine Motohisa Miyawaki 1987-06-23
4674610 System for decreasing clutch current during a change of range in an infinitely variable transmission 1987-06-23
4674611 System for controlling the clutch current of an electromagnetic clutch for vehicles 1987-06-23
4675817 System for controlling an electromagnetic clutch for a vehicle Motohisa Miyawaki 1987-06-23
4669591 System for controlling the clutch torque of an electromagnetic clutch for vehicles 1987-06-02
4662496 System for controlling the clutch torque of an electromagnetic clutch for vehicles 1987-05-05
4660699 System for controlling the clutch torque of an electromagnetic clutch for vehicles 1987-04-28
4657123 System for engaging an electromagnetic clutch during range change operation 1987-04-14
4644827 Hydraulic control system for an infinitely variable belt-drive transmission Toshio Takano 1987-02-24
4630704 System for controlling a power transmission of a four-wheel drive vehicle Toru Yamakawa, Fujio Makita, Mitsuo Umezawa 1986-12-23
4617840 System for controlling a power transmission of a four-wheel drive vehicle Toru Yamakawa, Fujio Makita, Mitsuo Umezawa 1986-10-21
4598806 Vehicular electromagnetic clutch control system having a throttle switch failure detecting circuit 1986-07-08
4586583 System for controlling a power transmission of a four-wheel drive vehicle Toru Yamakawa, Fujio Makita, Mitsuo Umezawa 1986-05-06
4576061 System for controlling the transmission of a four-wheel drive vehicle Toru Yamakawa, Fujio Makita, Mitsuo Umezawa 1986-03-18
4562541 System for controlling a power transmission of a four-wheel drive vehicle 1985-12-31
4558414 System for controlling a power transmission of a four-wheel drive vehicle 1985-12-10
4550816 System for controlling stall speed for an electromagnetic clutch 1985-11-05
4515257 Control system for an electromagnetic clutch for automobiles Toshio Takano 1985-05-07
4510903 System for regulating the idle speed of an internal combustion engine 1985-04-16
4494641 Electromagnetic clutch control system for automobiles 1985-01-22
4494639 Electro-magnetic clutch control system for automobiles Toshio Takano 1985-01-22
4484672 System for controlling an electro-magnetic clutch for automobiles Toshio Takano 1984-11-27
4449619 System for controlling an electromagnetic clutch for automobiles 1984-05-22