Inventor
YAMAGATA HIROSHI
JP52 patents
⚠️ This page may combine multiple inventors who share the name “YAMAGATA HIROSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
YAMAHA MOTOR CO LTD
18 patentsUS6070323AJun 6, 2000
Piston for internal combustion engine and material therefore
YAMAHA MOTOR CO LTD19 citations92
US7802493B2Sep 28, 2010
Connecting rod, internal combustion engine, automotive vehicle, and production method for connecting rod
YAMAHA MOTOR CO LTD8 citations84
US7390023B2Jun 24, 2008
Motorcycle fuel tank
YAMAHA MOTOR CO LTD12 citations83
US6205836B1Mar 27, 2001
Method for manufacturing piston by forging and forging die
YAMAHA MOTOR CO LTD15 citations83
US6032570AMar 7, 2000
Composite piston for machine
YAMAHA MOTOR CO LTD17 citations83
US4700444AOct 20, 1987
Method for making a composite engine cylinder block with preformed liner
YAMAHA MOTOR CO LTD23 citations82
US6561322B2May 13, 2003
Plated wear surface for alloy components and methods of manufacturing the same
YAMAHA MOTOR CO LTD14 citations79
US4750393AJun 14, 1988
Method for punching a cylindrical tube
YAMAHA MOTOR CO LTD5 citations74
US4637110AJan 20, 1987
Method for making a composite cylinder block
YAMAHA MOTOR CO LTD13 citations74
US7765977B2Aug 3, 2010
Engine component part and method for producing the same
YAMAHA MOTOR CO LTD6 citations73
US6209446B1Apr 3, 2001
Piston for internal combustion engine and process of making same
YAMAHA MOTOR CO LTD10 citations73
US5992015ANov 30, 1999
Process for forming composite piston
YAMAHA MOTOR CO LTD12 citations73
US5219675AJun 15, 1993
Electrolyte for fuel cell
YAMAHA MOTOR CO LTD14 citations69
US8047174B2Nov 1, 2011
Internal combustion engine component and method for producing the same
YAMAHA MOTOR CO LTD3 citations63
US8011271B2Sep 6, 2011
Fracture split-type connecting rod, internal combustion engine, transportation apparatus, and production method for fracture split-type connecting rod
YAMAHA MOTOR CO LTD5 citations63
US7757584B2Jul 20, 2010
Connecting rod and internal combustion engine and automotive vehicle incorporating the same
YAMAHA MOTOR CO LTD4 citations63
US5012776AMay 7, 1991
Composite cylinder block assembly
YAMAHA MOTOR CO LTD5 citations63
US7412955B2Aug 19, 2008
Engine component part and method for producing the same
YAMAHA MOTOR CO LTD4 citations62
SONY CORP
7 patentsUS5233316AAug 3, 1993
Digital voltage controlled oscillator having a ring oscillator with selectable output taps
SONY CORP75 citations96
US5949494ASep 7, 1999
Aspect ratio discrimination apparatus and image display apparatus including the same
SONY CORP39 citations93
US6226046B1May 1, 2001
Video signal discriminating circuit and television receiver
SONY CORP17 citations81
US5523850AJun 4, 1996
Picture signal recording device having adaptive processing circuit for adding color signal and sub-sampled color signal in response to motion signal
SONY CORP16 citations72
US6259485B1Jul 10, 2001
Sync separating circuit
SONY CORP5 citations63
US5497201AMar 5, 1996
Sync chip clamping/sync separator circuit
SONY CORP4 citations60
US7839457B2Nov 23, 2010
Display image correcting device, image display device, and display image correcting method
SONY CORP4 citations58
YOSHIDA KOGYO KK
6 patentsUS5423923AJun 13, 1995
Hard film of amorphous Ti-Si alloy having fine tin particles
YOSHIDA KOGYO KK23 citations92
US4225398ASep 30, 1980
Method of improving the corrosion resistance of an anodically oxidized surface film on aluminum articles
YOSHIDA KOGYO KK41 citations91
US5366564ANov 22, 1994
Hard wear-resistant film and method for production thereof
YOSHIDA KOGYO KK15 citations74
US5405458AApr 11, 1995
Method of producing hard film of Ti-Si-N composite material
YOSHIDA KOGYO KK9 citations73
US5024721AJun 18, 1991
Method of forming metal surface thin film having high corrosion resistance and high adhesion
YOSHIDA KOGYO KK6 citations63
US5010628AApr 30, 1991
Coupling element row for slide fastener and surface treating method for the same
YOSHIDA KOGYO KK3 citations63
SHARP KK
5 patentsUSD282360SJan 28, 1986
Intercommunication unit
SHARP KK8 citations73
USD281500SNov 26, 1985
Interphone
SHARP KK7 citations73
USD281501SNov 26, 1985
Interphone
SHARP KK8 citations73
USD280097SAug 13, 1985
Electronic intercommunications unit
SHARP KK10 citations73
USD278706SMay 7, 1985
Power control panel
SHARP KK9 citations73
HARANO HIROYUKI
3 patentsHOSIDEN CORP
2 patentsYKK CORP
2 patentsEASTMAN KODAK CO
1 patentMASUMOTO TSUYOSHI
1 patentYAMAGATA HIROSHI
1 patentHIROSHIMA ALUMINUM INDUSTRY CO
1 patentTOYOTA MOTOR CO LTD
1 patentHITACHI DISPLAYS LTD
1 patentMORESCO CORP
1 patentShowing the top 50 of 52 patents by PatentIndex Score.