Inventor
ISHIZUKA YUTAKA
JP48 patents
⚠️ This page may combine multiple inventors who share the name “ISHIZUKA YUTAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DIESEL KIKI CO
26 patentsUS4244680AJan 13, 1981
Rotary vane compressor with oil separating means
DIESEL KIKI CO41 citations93
US4480973ANov 6, 1984
Vane compressor provided with endless camming surface minimizing torque fluctuations
DIESEL KIKI CO24 citations82
US3995976ADec 7, 1976
Rotary device with axially biased blade and rotor sections
DIESEL KIKI CO20 citations82
US4968160ANov 6, 1990
Cooling device for printer head
DIESEL KIKI CO13 citations74
US4668172AMay 26, 1987
Compressor having discharge valve means adapted to enhance the coefficient of performance of the compressor
DIESEL KIKI CO16 citations74
US4636153AJan 13, 1987
Rotary compressor with blind hole in end wall that aligns with back pressure chamber
DIESEL KIKI CO12 citations74
US4502854AMar 5, 1985
Vane compressor having rearwardly located suction connector and discharge connector
DIESEL KIKI CO7 citations74
US4501537AFeb 26, 1985
Vane compressor having an endless camming surface minimizing torque fluctuations
DIESEL KIKI CO16 citations74
US4480965ANov 6, 1984
Capacity modulation device for compressor
DIESEL KIKI CO17 citations74
US4416190ANov 22, 1983
Seal for compressor
DIESEL KIKI CO19 citations74
US4401414AAug 30, 1983
Swash-plate type compressor having a simple lubricant oil feeding arrangement
DIESEL KIKI CO12 citations74
US4379425AApr 12, 1983
Double-acting piston for swash-plate type compressors
DIESEL KIKI CO17 citations74
US4253809AMar 3, 1981
Vane compressor with rotor having metallic base and vane slots and a periphery of lower specific gravity
DIESEL KIKI CO11 citations74
US4174931ANov 20, 1979
Vane for rotary compressor
DIESEL KIKI CO17 citations74
US4144002AMar 13, 1979
Rotary compressor
DIESEL KIKI CO18 citations74
US4571164AFeb 18, 1986
Vane compressor with vane back pressure adjustment
DIESEL KIKI CO12 citations73
US4805418AFeb 21, 1989
Indoor unit for room air conditioners
DIESEL KIKI CO10 citations72
US4810177AMar 7, 1989
Vane compressor with vane back pressure adjustment
DIESEL KIKI CO11 citations70
US4815362AMar 28, 1989
Diffuser unit for air conditioning system
DIESEL KIKI CO14 citations69
US4511313AApr 16, 1985
Compression capacity control apparatus for swash plate compressor
DIESEL KIKI CO3 citations63
US4394110AJul 19, 1983
Swash-plate type compressor
DIESEL KIKI CO2 citations63
US4392416AJul 12, 1983
Swash-plate type compressor having low noise thrust bearings
DIESEL KIKI CO3 citations63
US4717321AJan 5, 1988
Vane compressor with vane back pressure adjustment
DIESEL KIKI CO3 citations62
US4611977ASep 16, 1986
Vane compressor with vane back pressure adjustment
DIESEL KIKI CO2 citations62
US4828019AMay 9, 1989
Indoor unit for room air conditioners and air conditioning system using the same
DIESEL KIKI CO3 citations61
US4549855AOct 29, 1985
Compression capacity control apparatus for swash plate compressor
DIESEL KIKI CO1 citations52
SANKYO SEIKI SEISAKUSHO KK
14 patentsUS5744881AApr 28, 1998
Spindle motor, and its rotor yoke manufacturing method
SANKYO SEIKI SEISAKUSHO KK27 citations92
US6087749AJul 11, 2000
Rotary polygonal mirror driving apparatus
SANKYO SEIKI SEISAKUSHO KK16 citations84
US6188155B1Feb 13, 2001
Spindle motor
SANKYO SEIKI SEISAKUSHO KK15 citations79
US6172439B1Jan 9, 2001
Motor rotor using a cylindrical yoke with slit
SANKYO SEIKI SEISAKUSHO KK11 citations74
US5653541AAug 5, 1997
Disk driving motor
SANKYO SEIKI SEISAKUSHO KK10 citations74
US5638233AJun 10, 1997
Magnetic disk drive motor having a fixed shaft with circumferential grooves for integrating the bearing therewith and having a disc abutting the outer ring of the bearing
SANKYO SEIKI SEISAKUSHO KK16 citations74
US5471357ANov 28, 1995
Magnetic disk drive device having a liquid insulating material provided in different thicknesses on an iron core
SANKYO SEIKI SEISAKUSHO KK10 citations74
US5877918AMar 2, 1999
Disk driving device with hub flange secured between yoke and drive magnet
SANKYO SEIKI SEISAKUSHO KK14 citations73
US5686771ANov 11, 1997
Electric motor
SANKYO SEIKI SEISAKUSHO KK17 citations73
US5666219ASep 9, 1997
Rotary polygon mirror type light deflecting system
SANKYO SEIKI SEISAKUSHO KK9 citations73
US5945752AAug 31, 1999
Shaft-fixed-type motor
SANKYO SEIKI SEISAKUSHO KK6 citations63
US5675430AOct 7, 1997
Rotary polygon mirror
SANKYO SEIKI SEISAKUSHO KK3 citations63
US5636084AJun 3, 1997
Magnetic disk drive motor including a fixed shaft having mounted thereon a ball bearing with a rotor fixed at one end thereof and having a disc abutting the outer ring of the bearing
SANKYO SEIKI SEISAKUSHO KK3 citations63
US5661588AAug 26, 1997
Rotary polygon mirror type light deflecting system
SANKYO SEIKI SEISAKUSHO KK5 citations62