Inventor
UDAGAWA TSUNEKAZU
JP99 patents
⚠️ This page may combine multiple inventors who share the name “UDAGAWA TSUNEKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ISHIKAWA GASKET
49 patentsUS5853175ADec 29, 1998
Cylinder head gasket with fluid flow path
ISHIKAWA GASKET73 citations96
US5058908AOct 22, 1991
Steel laminate gasket
ISHIKAWA GASKET38 citations96
US4898396AFeb 6, 1990
Steel laminate gasket
ISHIKAWA GASKET60 citations96
US4834399AMay 30, 1989
Steel laminate gasket
ISHIKAWA GASKET103 citations96
US4778189AOct 18, 1988
Gasket with elastic sealing members
ISHIKAWA GASKET49 citations96
US6779800B2Aug 24, 2004
Head gasket
ISHIKAWA GASKET20 citations93
US6517085B2Feb 11, 2003
Cylinder head gasket with partial resin coating
ISHIKAWA GASKET34 citations93
US6250645B1Jun 26, 2001
Gasket with annular sealing projection and groove
ISHIKAWA GASKET42 citations93
US6186513B1Feb 13, 2001
Method of forming gasket with annular sealing projection and groove
ISHIKAWA GASKET27 citations93
US6089573AJul 18, 2000
Metal gasket with corrugated bead
ISHIKAWA GASKET42 citations93
US6036195AMar 14, 2000
Metal gasket with double beads
ISHIKAWA GASKET46 citations93
US5769430AJun 23, 1998
Metal gasket with bead and thermal sprayed layer thereof
ISHIKAWA GASKET23 citations93
US5695203ADec 9, 1997
Metal gasket with coating layer
ISHIKAWA GASKET21 citations93
US5570892ANov 5, 1996
Metal gasket with a bead having pressure adjusting portion
ISHIKAWA GASKET26 citations93
US5536024AJul 16, 1996
Metal gasket having sealing beads with different width and height
ISHIKAWA GASKET29 citations93
US5511796AApr 30, 1996
Metal laminate gasket with sealing shim
ISHIKAWA GASKET22 citations93
US5435575AJul 25, 1995
Steel laminate gasket
ISHIKAWA GASKET24 citations93
US5306023AApr 26, 1994
Cylinder head gasket with auxiliary sealing plate
ISHIKAWA GASKET20 citations93
US5306024AApr 26, 1994
Metal gasket with low heat transmission
ISHIKAWA GASKET25 citations93
US5255926AOct 26, 1993
Steel laminate gasket
ISHIKAWA GASKET37 citations93
US5240261AAug 31, 1993
Steel laminate gasket
ISHIKAWA GASKET24 citations93
US5232229AAug 3, 1993
Metal gasket with low heat transmission
ISHIKAWA GASKET36 citations93
US5213345AMay 25, 1993
Steel laminate gasket with wide sealing area
ISHIKAWA GASKET21 citations93
US5169163ADec 8, 1992
Steel laminate gasket with main and auxiliary sealing members
ISHIKAWA GASKET25 citations93
US5150910ASep 29, 1992
Gasket with soft and hard seal coatings
ISHIKAWA GASKET45 citations93
US5092613AMar 3, 1992
Steel laminate gasket
ISHIKAWA GASKET25 citations93
US5054795AOct 8, 1991
Metal laminate gasket
ISHIKAWA GASKET22 citations93
US4998741AMar 12, 1991
Metal plate with reinforcing bead and a cylinder head gasket including the same
ISHIKAWA GASKET30 citations93
US4995624AFeb 26, 1991
Steel laminate gasket with wide sealing area
ISHIKAWA GASKET30 citations93
US4938488AJul 3, 1990
Steel laminate gasket with wide sealing area
ISHIKAWA GASKET28 citations93
US4896891AJan 30, 1990
Steel laminate gasket with associated beads
ISHIKAWA GASKET42 citations93
US4867462ASep 19, 1989
Steel laminate gasket with separate beads
ISHIKAWA GASKET28 citations93
US4861046AAug 29, 1989
Steel laminate gasket with separate beads
ISHIKAWA GASKET31 citations93
US4828275AMay 9, 1989
Gasket with elastic sealing members
ISHIKAWA GASKET29 citations93
US4803965AFeb 14, 1989
Steel laminate type cylinder head gasket
ISHIKAWA GASKET28 citations93
US4759585AJul 26, 1988
Steel laminate gasket with meshing corrugated beads
ISHIKAWA GASKET50 citations93
US4759556AJul 26, 1988
Metal gasket with auxiliary bead
ISHIKAWA GASKET45 citations93
US4754982AJul 5, 1988
Steel laminate gasket
ISHIKAWA GASKET35 citations93
US4714260ADec 22, 1987
Steel laminate gasket
ISHIKAWA GASKET43 citations93
US5478092ADec 26, 1995
Metal laminate gasket with edge support beads
ISHIKAWA GASKET28 citations92
US5427389AJun 27, 1995
Metal laminate gasket with edge support beads
ISHIKAWA GASKET39 citations92
US5221097AJun 22, 1993
Sealing system using metal gasket with projection bead
ISHIKAWA GASKET33 citations92
US6318733B1Nov 20, 2001
Metal laminate gasket with elastic auxiliary sealing member
ISHIKAWA GASKET19 citations84
US5451063ASep 19, 1995
Steel laminate gasket
ISHIKAWA GASKET17 citations82
US5297807AMar 29, 1994
Steel laminate gasket
ISHIKAWA GASKET14 citations82
US5076595ADec 31, 1991
Steel laminate gasket
ISHIKAWA GASKET19 citations82
US4826708AMay 2, 1989
Method of manufacturing a steel plate with a seal coating for a steel laminate gasket
ISHIKAWA GASKET23 citations82
US4791897ADec 20, 1988
Steel laminate type cylinder head gasket
ISHIKAWA GASKET17 citations82
US4776073AOct 11, 1988
Method of manufacturing a steel laminate gasket
ISHIKAWA GASKET23 citations82
ISHIKAWA GASKIT CO LTD
1 patentShowing the top 50 of 99 patents by PatentIndex Score.