Inventor
UMEZAWA SHIGEKI
JP24 patents
⚠️ This page may combine multiple inventors who share the name “UMEZAWA SHIGEKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NSK WARNER KK
21 patentsUS5439087AAug 8, 1995
Wet-type multi-plate frictional engagement apparatus
NSK WARNER KK53 citations96
US6062367AMay 16, 2000
Friction plate
NSK WARNER KK82 citations95
US6283265B1Sep 4, 2001
Wet type multiplate clutch
NSK WARNER KK42 citations92
US6060536AMay 9, 2000
Method of producing wet friction material and wet frictional material
NSK WARNER KK24 citations92
US5730259AMar 24, 1998
Method of producing wet frictional plate
NSK WARNER KK22 citations92
US5248016ASep 28, 1993
Lock-up clutch for a torque converter
NSK WARNER KK35 citations92
US5647466AJul 15, 1997
Wet multidisk friction clutch and fabrication process thereof
NSK WARNER KK14 citations74
US5135082AAug 4, 1992
Brake band
NSK WARNER KK15 citations74
US6130177AOct 10, 2000
Wet friction material
NSK WARNER KK8 citations73
US5890572AApr 6, 1999
Lockup clutch for torque converter
NSK WARNER KK10 citations73
US5865283AFeb 2, 1999
Torque converter with a lock-up mechanism
NSK WARNER KK16 citations73
US6331358B1Dec 18, 2001
Wet friction material and process for producing the same
NSK WARNER KK12 citations72
US5563196AOct 8, 1996
Wet frictional material
NSK WARNER KK14 citations72
US6544632B2Apr 8, 2003
Wet friction material and manufacturing method therefor
NSK WARNER KK8 citations71
US5582274ADec 10, 1996
Brake band
NSK WARNER KK5 citations63
US7392891B2Jul 1, 2008
Friction plate for wet-type multiplate clutch
NSK WARNER KK3 citations61
US7322453B2Jan 29, 2008
Lockup clutch assembly
NSK WARNER KK5 citations61
US5975253ANov 2, 1999
Lining for brake band
NSK WARNER KK6 citations61
US5467849ANov 21, 1995
Brake band
NSK WARNER KK6 citations61
US6780283B2Aug 24, 2004
Wet friction material and manufacturing method therefor
NSK WARNER KK2 citations60
US6758311B2Jul 6, 2004
Band braking device, and method of manufacturing annular brake band
NSK WARNER KK0 citations52