Inventor
YASUDA KOICHI
JP40 patents
⚠️ This page may combine multiple inventors who share the name “YASUDA KOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
12 patentsUS6246656B1Jun 12, 2001
Reduced thickness of a light transmissive layer for a high density optical disc
SONY CORP199 citations98
US6511788B1Jan 28, 2003
Multi-layered optical disc
SONY CORP86 citations97
US6221455B1Apr 24, 2001
Multi-layer optical disc and recording/reproducing apparatus
SONY CORP105 citations97
US5972459AOct 26, 1999
Optical recording medium and optical disk apparatus
SONY CORP63 citations95
US5768221AJun 16, 1998
Method of and apparatus for initializing multi-layer optical recording medium
SONY CORP86 citations94
US5741603AApr 21, 1998
Optical disc
SONY CORP34 citations92
US6574180B2Jun 3, 2003
Multilayer optical disk and method of initializing the same
SONY CORP14 citations84
US7390546B2Jun 24, 2008
Optical recording medium
SONY CORP7 citations74
US5657310AAug 12, 1997
Optical disc
SONY CORP3 citations63
US6956809B2Oct 18, 2005
Multilayer phase-change type optical disc capable of recording and reproducing information at high transfer rate
SONY CORP5 citations62
US6434108B1Aug 13, 2002
Optical disc having narrow recording track relative to light spot diameter
SONY CORP4 citations62
US5923639AJul 13, 1999
Phase-change optical recording medium having an additive related to the writing line speed
SONY CORP4 citations62
MITA INDUSTRIAL CO LTD
7 patentsUSD365845SJan 2, 1996
Photoconductive unit for a reprographic apparatus
MITA INDUSTRIAL CO LTD17 citations82
USD395668SJun 30, 1998
Toner cartridge
MITA INDUSTRIAL CO LTD15 citations74
USD366276SJan 16, 1996
Toner cartridge
MITA INDUSTRIAL CO LTD11 citations74
US5337128AAug 9, 1994
Image-forming machine with toner image transfer means
MITA INDUSTRIAL CO LTD19 citations73
US5508792AApr 16, 1996
Developing unit including a partition wall defining a non-agitation space in a developer container
MITA INDUSTRIAL CO LTD11 citations71
US5345299ASep 6, 1994
Image-forming machine with toner image transfer means having a charge supply zone and a transfer zone
MITA INDUSTRIAL CO LTD2 citations62
USD370024SMay 21, 1996
Developing unit for a reprographic apparatus
MITA INDUSTRIAL CO LTD0 citations52
HITACHI LTD
5 patentsUS10085707B2Oct 2, 2018
Medical image information system, medical image information processing method, and program
HITACHI LTD5 citations71
US4802874AFeb 7, 1989
Method of installing mount assembly in cathode ray tube
HITACHI LTD4 citations63
US4798552AJan 17, 1989
Apparatus for producing picture tube
HITACHI LTD4 citations63
US4772239ASep 20, 1988
Sealing apparatus for picture tube
HITACHI LTD3 citations63
US4820228AApr 11, 1989
Sealing apparatus for picture tube
HITACHI LTD1 citations52
KAWASAKI STEEL CO
4 patentsUS5837956ANov 17, 1998
Method of fabricating high strength and high toughness large-diameter welded steel pipe
KAWASAKI STEEL CO15 citations74
US5019460AMay 28, 1991
Galvannealed steel sheet having improved spot-weldability
KAWASAKI STEEL CO16 citations71
US4624406ANov 25, 1986
Overlay welding method
KAWASAKI STEEL CO14 citations68
US4904842AFeb 27, 1990
Blowhole·pit preventing agent and arc-welding method using the same
KAWASAKI STEEL CO6 citations67