Inventor
OKAMOTO YOSHIO
JP135 patents
⚠️ This page may combine multiple inventors who share the name “OKAMOTO YOSHIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
25 patentsUS6543412B2Apr 8, 2003
Intake air control device and internal combustion engine mounting the same
HITACHI LTD72 citations96
US5992391ANov 30, 1999
Electromagnetic fuel injector and control method thereof
HITACHI LTD78 citations96
US6550458B2Apr 22, 2003
Electromagnetic fuel injection apparatus, an internal combustion engine having an electromagnetic fuel injection apparatus, and a drive circuit of an electromagnetic fuel injection apparatus
HITACHI LTD47 citations95
US6675766B2Jan 13, 2004
Fuel injection valve and internal combustion engine mounting the same
HITACHI LTD13 citations92
US6588399B2Jul 8, 2003
Fuel injection method of internal combustion engine and fuel injection apparatus of internal combustion engine
HITACHI LTD19 citations92
US6571773B1Jun 3, 2003
Fuel injector and internal combustion engine
HITACHI LTD50 citations92
US6474572B1Nov 5, 2002
Fuel-injection valve
HITACHI LTD33 citations92
US6453872B1Sep 24, 2002
Fuel injection valve and internal combustion engine mounting the same
HITACHI LTD20 citations92
US6345601B1Feb 12, 2002
Direct injection fuel injector and internal combustion engine mounting the same
HITACHI LTD42 citations92
US6332453B1Dec 25, 2001
Electromagnetic system fuel injection apparatus an internal combustion engine having an electromagnetic system fuel injection apparatus, and a drive circuit of an electromagnetic system fuel injection apparatus
HITACHI LTD16 citations92
US6129073AOct 10, 2000
Electromagnetic fuel injector and control method thereof
HITACHI LTD21 citations92
US5915352AJun 29, 1999
In-cylinder fuel injection device and internal combustion engine mounting the same
HITACHI LTD43 citations92
US5108037AApr 28, 1992
Fuel injection valve
HITACHI LTD39 citations92
US4546795AOct 15, 1985
Solenoid valve
HITACHI LTD34 citations92
US4887769ADec 19, 1989
Electromagnetic fuel injection valve
HITACHI LTD33 citations91
US5109823AMay 5, 1992
Fuel injector device and method of producing the same
HITACHI LTD28 citations89
US5109824AMay 5, 1992
Electromagnetic fuel injection valve
HITACHI LTD23 citations89
US4165950AAug 28, 1979
Fan having forward-curved blades
HITACHI LTD31 citations89
US6854448B2Feb 15, 2005
Fuel injection valve and fuel injection system
HITACHI LTD16 citations84
US6634338B1Oct 21, 2003
Fuel injection apparatus, fuel injection method and internal combustion engine
HITACHI LTD18 citations84
US6508236B2Jan 21, 2003
Fuel supply device and internal combustion engine mounting the same
HITACHI LTD15 citations84
US7334563B2Feb 26, 2008
Fuel injector and in-cylinder direct-injection gasoline engine
HITACHI LTD16 citations82
US5346137ASep 13, 1994
Electromagnetic fuel injection valve
HITACHI LTD19 citations82
US5098016AMar 24, 1992
Electromagnetic fuel injection valve
HITACHI LTD20 citations81
US4995559AFeb 26, 1991
Electromagnetic fuel injection valve
HITACHI LTD16 citations81
DAICEL CHEM
12 patentsUS4478953AOct 23, 1984
Polymerization process of optically active polymer and catalyst therefor
DAICEL CHEM43 citations95
US5639824AJun 17, 1997
Separating agent containing a support and a cyclodextrin derivative
DAICEL CHEM21 citations93
USRE34457ENov 30, 1993
Separating agent
DAICEL CHEM29 citations92
US5202433AApr 13, 1993
Polysaccharide derivatives as separating agents
DAICEL CHEM27 citations92
US4912205AMar 27, 1990
Alkyl-substituted phenylcarbamate derivative of polysaccharide
DAICEL CHEM25 citations92
US4861872AAug 29, 1989
Alkyl-phenylcarbamate derivative of polysaccharide
DAICEL CHEM44 citations92
US4818394AApr 4, 1989
Separating agent
DAICEL CHEM48 citations92
US4619970AOct 28, 1986
Separation agent
DAICEL CHEM38 citations92
US6217769B1Apr 17, 2001
Separating agent for optical isomers and process for producing the same
DAICEL CHEM31 citations91
US5491223AFeb 13, 1996
Polysaccharide derivative and separating agent
DAICEL CHEM17 citations82
US5679572AOct 21, 1997
Separation of chiral compounds on polysaccharide supports
DAICEL CHEM18 citations81
US4613442ASep 23, 1986
Novel optically active polymer, preparation and use
DAICEL CHEM15 citations81
DAINIPPON SCREEN MFG
3 patentsUS5234499AAug 10, 1993
Spin coating apparatus
DAINIPPON SCREEN MFG61 citations94
US6878303B2Apr 12, 2005
Substrate processing apparatus and substrate processing method
DAINIPPON SCREEN MFG40 citations93
US7591922B2Sep 22, 2009
Substrate processing apparatus and substrate processing method
DAINIPPON SCREEN MFG12 citations84
FUJITSU TAKAMISAWA COMPONENT
3 patentsHITACHI CAR ENG CO LTD
1 patentHIATCHI LTD
1 patentHITACHI LDT
1 patentNAKANO VINEGAR CO LTD
1 patentOKAMOTO YOSHIO
1 patentTAKAMISAWA ELECTRIC CO
1 patentFUJITSU COMPONENT LTD
1 patentShowing the top 50 of 135 patents by PatentIndex Score.