Inventor
ARAI HIROKAZU
JP36 patents
⚠️ This page may combine multiple inventors who share the name “ARAI HIROKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KOYO SEIKO CO
17 patentsUS6527642B1Mar 4, 2003
Power transmission coupling and power transmission apparatus
KOYO SEIKO CO42 citations92
US6394220B1May 28, 2002
Electric power steering device
KOYO SEIKO CO23 citations92
US5797819AAug 25, 1998
Resin pulley
KOYO SEIKO CO39 citations92
US6622814B2Sep 23, 2003
Electric power steering device
KOYO SEIKO CO21 citations91
US5941704AAug 24, 1999
Crown cage for ball bearing and dental hand piece including the same
KOYO SEIKO CO37 citations91
US6499885B2Dec 31, 2002
Seal ring, sealing apparatus and bearing apparatus
KOYO SEIKO CO20 citations90
US5356535AOct 18, 1994
Oil tank
KOYO SEIKO CO31 citations89
US6626261B1Sep 30, 2003
Electric power steering apparatus
KOYO SEIKO CO15 citations84
US6425455B1Jul 30, 2002
Electric power steering apparatus
KOYO SEIKO CO18 citations84
US6106422AAug 22, 2000
Power transmission member and material thereof containing carbon fiber, aromatic polyamide fiber and graphite with phenol resin
KOYO SEIKO CO13 citations74
US6516915B2Feb 11, 2003
Electric power steering device
KOYO SEIKO CO11 citations73
US5022279AJun 11, 1991
Rack and pinion steering device
KOYO SEIKO CO12 citations72
US6716907B2Apr 6, 2004
Phenolic molding composition
KOYO SEIKO CO6 citations71
US6767491B2Jul 27, 2004
Electric power steering apparatus
KOYO SEIKO CO9 citations70
US6557663B2May 6, 2003
Electric power steering apparatus
KOYO SEIKO CO9 citations70
US6520683B2Feb 18, 2003
Seal ring, sealing device and rolling bearing including the same
KOYO SEIKO CO9 citations70
US5280868AJan 25, 1994
Reservoir supporting structure
KOYO SEIKO CO6 citations62
NIPPON KINSEN KIKAI KK
5 patentsUS12269704B2Apr 8, 2025
Transport mechanism and air flow control apparatus
NIPPON KINSEN KIKAI KK4 citations74
US11823518B2Nov 21, 2023
Information processing device and information processing system
NIPPON KINSEN KIKAI KK0 citations56
US12515901B2Jan 6, 2026
Paper sheet transport system, control device, air blowing device control method, and program
NIPPON KINSEN KIKAI KK0 citations51
US12406545B2Sep 2, 2025
Paper sheet transport system and restoration method
NIPPON KINSEN KIKAI KK0 citations44
US12509311B2Dec 30, 2025
Transport system
NIPPON KINSEN KIKAI KK0 citations43