Inventor
YAMADA YOSHIO
JP70 patents
⚠️ This page may combine multiple inventors who share the name “YAMADA YOSHIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ISHIKAWA GASKET
16 patentsUS6189895B1Feb 20, 2001
Metal gasket with sealing and connecting sections
ISHIKAWA GASKET53 citations96
US4739999AApr 26, 1988
Steel laminate gasket
ISHIKAWA GASKET95 citations96
US4648607AMar 10, 1987
Steel laminate gasket with assembly order identification device
ISHIKAWA GASKET58 citations95
US5203576AApr 20, 1993
Clip for a gasket
ISHIKAWA GASKET23 citations93
US5141237AAug 25, 1992
Steel laminate gasket with a plate information device
ISHIKAWA GASKET22 citations93
US5082298AJan 21, 1992
Steel laminate gasket with seal protecting member
ISHIKAWA GASKET28 citations93
US4803965AFeb 14, 1989
Steel laminate type cylinder head gasket
ISHIKAWA GASKET28 citations93
US4776601AOct 11, 1988
Steel laminate gasket with positioning device
ISHIKAWA GASKET41 citations93
US6322084B1Nov 27, 2001
Metal gasket with bore ring
ISHIKAWA GASKET18 citations84
US4869516ASep 26, 1989
Steel laminate gaskets
ISHIKAWA GASKET23 citations81
US5931475AAug 3, 1999
Metal laminate gasket with mutual laminating portions
ISHIKAWA GASKET7 citations74
US5382029AJan 17, 1995
Metal laminate gasket with deformation preventing mechanism
ISHIKAWA GASKET8 citations74
US5280929AJan 25, 1994
Steel laminate gasket with reduced hole
ISHIKAWA GASKET15 citations74
US5209504AMay 11, 1993
Metal laminate gasket
ISHIKAWA GASKET18 citations74
US4869515ASep 26, 1989
Metal plate with reinforced beads for a metal gasket
ISHIKAWA GASKET8 citations74
US4809653AMar 7, 1989
Steel laminate type cylinder head gasket
ISHIKAWA GASKET13 citations74
TOYO TIRE & RUBBER CO
7 patentsUS6070904AJun 6, 2000
Air bag device with breakable retainer strap
TOYO TIRE & RUBBER CO93 citations97
US4823161AApr 18, 1989
Cleaning blade for electrophotographic copying machines or the like
TOYO TIRE & RUBBER CO33 citations91
US4515981AMay 7, 1985
Polyetherpolyol derivative and process for preparing the same
TOYO TIRE & RUBBER CO35 citations91
US4504648AMar 12, 1985
Polyurethaneurea and process for preparing the same
TOYO TIRE & RUBBER CO20 citations81
US4939551AJul 3, 1990
Cleaning device for electrophotographic copying machines
TOYO TIRE & RUBBER CO13 citations73
US4732959AMar 22, 1988
Polyesterpolyol derivative and a poly(urethane)ureamide obtained therefrom
TOYO TIRE & RUBBER CO14 citations72
US4537945AAug 27, 1985
Polyether derivative and a poly(urethane)ureamide obtained therefrom
TOYO TIRE & RUBBER CO10 citations72
NHK SPRING CO LTD
7 patentsUS6655983B1Dec 2, 2003
Electrical test probe provided with a signal transmitting wire having an enlarged portion for preventing the wire from coming out of the probe
NHK SPRING CO LTD47 citations92
US7898272B2Mar 1, 2011
Probe card
NHK SPRING CO LTD23 citations91
US6642728B1Nov 4, 2003
Holder of electroconductive contactor, and method for producing the same
NHK SPRING CO LTD29 citations90
US8018242B2Sep 13, 2011
Probe card
NHK SPRING CO LTD8 citations83
US8049525B2Nov 1, 2011
Parallelism adjusting mechanism of probe card
NHK SPRING CO LTD8 citations82
US7795892B2Sep 14, 2010
Probe card
NHK SPRING CO LTD11 citations82
US12560629B2Feb 24, 2026
Method of manufacturing contact probe and contact probe
NHK SPRING CO LTD0 citations51
YAMADA YOSHIO
5 patentsUS8149008B2Apr 3, 2012
Probe card electrically connectable with a semiconductor wafer
YAMADA YOSHIO10 citations82
US4048071ASep 13, 1977
Liquid filtering device
YAMADA YOSHIO25 citations81
US9373900B2Jun 21, 2016
Contact structure unit
YAMADA YOSHIO2 citations62
US8456184B2Jun 4, 2013
Probe card for a semiconductor wafer
YAMADA YOSHIO2 citations60
US8671709B2Mar 18, 2014
Method and apparatus for producing frozen products
YAMADA YOSHIO0 citations52
TECHNICAN COMPANY LTD
3 patentsTOYODA CHUO KENKYUSHO KK
2 patentsTHOMAS & BETTS CORP
2 patentsGRAM CORP
1 patentMITSUBISHI MATERIALS CORP
1 patentSONY CORP
1 patentDAIDO KOGYO KK
1 patentSUMITOMO METAL IND
1 patentTECHNICAN CO LTD
1 patentTOYODA BOSHOKU KK
1 patentHITACHI LTD
1 patentShowing the top 50 of 70 patents by PatentIndex Score.