Inventor · disambiguated record
Hitoshi Oka
Also filed as: OKA HITOSHI
35 granted patents·5 pending applications·856 citations·filing 1979–2008
98Inventor score
Top patents by PatentIndex Score
40 records- 0191US5979475ASpecimen holding method and fluid treatment method of specimen surface and systems thereforHITACHI LTD·Filed 1995·Granted Nov 9, 1999·134 cites·7 claims
- 0289US6431190B1Fluid processing apparatusKOKUSAI ELECTRIC CO LTD·Filed 2001·Granted Aug 13, 2002·46 cites·11 claims
- 0386US6401734B1Substrate treating apparatusHITACHI INT ELECTRIC CO LTD·Filed 2000·Granted Jun 11, 2002·47 cites·19 claims
- 0483US5388328AProcess for fabricating an interconnected multilayer boardHITACHI LTD·Filed 1994·Granted Feb 14, 1995·69 cites·64 claims
- 0583US5256247ALiquid etchant composition for thin film resistor elementHITACHI LTD·Filed 1991·Granted Oct 26, 1993·40 cites·5 claims
- 0680US4563217AElectroless copper plating solutionHITACHI LTD·Filed 1984·Granted Jan 7, 1986·34 cites·23 claims
- 0777US6461532B1Piezoelectric ceramic materialTDK CORP·Filed 2000·Granted Oct 8, 2002·17 cites·28 claims
- 0877US4303443AElectroless copper plating solutionHITACHI LTD·Filed 1980·Granted Dec 1, 1981·29 cites·11 claims
- 0976US6539959B1Cleaning apparatus for plate-like part and method thereofHITACHI LTD·Filed 2000·Granted Apr 1, 2003·22 cites·11 claims
- 1075US6443168B1Plate-like specimen fluid-treating apparatus and plate-like specimen fluid-treating methodHITACHI INT ELECTRIC INC·Filed 2000·Granted Sep 3, 2002·20 cites·9 claims
- 1175US4276323AProcess for controlling of chemical copper plating solutionHITACHI LTD·Filed 1979·Granted Jun 30, 1981·23 cites·1 claims
- 1274US5300735AInterconnected multilayer boards and fabrication processes thereofHITACHI LTD·Filed 1993·Granted Apr 5, 1994·42 cites·25 claims
- 1374US4828451AIndustrial robotDAIKIN IND LTD·Filed 1987·Granted May 9, 1989·34 cites·8 claims
- 1474US4460718AEpoxy resin compositionHITACHI LTD·Filed 1983·Granted Jul 17, 1984·22 cites·14 claims
- 1574US4324629AProcess for regenerating chemical copper plating solutionHITACHI LTD·Filed 1980·Granted Apr 13, 1982·26 cites·6 claims
- 1671US6398978B1Piezoelectric ceramicTDK CORP·Filed 2000·Granted Jun 4, 2002·10 cites·5 claims
- 1769US4211564AChemical copper plating solutionHITACHI LTD·Filed 1979·Granted Jul 8, 1980·17 cites·5 claims
- 1863US5387493APhotosensitive resin composition for forming conductor patterns and multilayer circuit boards using sameHITACHI LTD·Filed 1990·Granted Feb 7, 1995·26 cites·16 claims
- 1962US6551522B2Piezoelectric ceramicsTDK CORP·Filed 2001·Granted Apr 22, 2003·6 cites·8 claims
- 2060US6241908B1Piezoelectric ceramicsTDK CORP·Filed 1999·Granted Jun 5, 2001·17 cites·17 claims
- 2160US5348590ASurface treating agent for copper or copper alloysHITACHI LTD·Filed 1993·Granted Sep 20, 1994·30 cites·4 claims
- 2255US5409544AMethod of controlling adhesion of fine particles to an object in liquidHITACHI LTD·Filed 1993·Granted Apr 25, 1995·24 cites·11 claims
- 2354US6315836B1Clean, recirculating processing method which prevents surface contamination of an objectKOKUSAI ELECTRIC CO LTD·Filed 1999·Granted Nov 13, 2001·17 cites·5 claims
- 2454US4555532AEpoxy resin compositionHITACHI LTD·Filed 1984·Granted Nov 26, 1985·12 cites·26 claims
- 2554US4347304AProcess for forming metallic imageHITACHI LTD·Filed 1981·Granted Aug 31, 1982·14 cites·8 claims
- 2652US5268255APhoto-setting resist composition, a process for producing a printed circuit board by using the composition, and a printed circuit board obtained by using the compositionHITACHI LTD·Filed 1991·Granted Dec 7, 1993·19 cites·12 claims
- 2752US4735853AMagnetic recording medium having an amorphous, nonmagnetic nickel-tungston-phosphorus underlayerHITACHI LTD·Filed 1986·Granted Apr 5, 1988·9 cites·18 claims
- 2848US7729692B2Inspection apparatus, analysis display apparatus, inspection system and inspection methodPANASONIC CORP·Filed 2005·Granted Jun 1, 2010·2 cites·6 claims
- 2945US6129886AMethod of preparation of piezoelectric ceramicsTDK CORP·Filed 1998·Granted Oct 10, 2000·10 cites·14 claims
- 3045US2006016128A1Abrasive material having an antiloading coatingOKA HITOSHI·Filed 2005·Application pending·0 cites
- 3144US6184541B1Thin film transistor and method of producing the sameMATSUSHITA ELECTRONICS CORP·Filed 1998·Granted Feb 6, 2001·8 cites·2 claims
- 3244US2008081546A1Dust vacuuming abrasive tool3M INNOVATIVE PROPERTIES CO·Filed 2007·Application pending·0 cites
- 3344US2007257228A1Piezoelectric Ceramics and Piezoelectric ElementTDK CORP·Filed 2004·Application pending·0 cites
- 3443US2010077673A1Antiloading composition for an abrasive article and abrasive article having an antiloading coatingOKA HITOSHI·Filed 2008·Application pending·0 cites
- 3543US2007243803A1Abrasive tool for collecting dust3M INNOVATIVE PROPERTIES CO·Filed 2007·Application pending·0 cites
- 3640US4310563AMethod for automatically controlling composition of chemical copper plating solutionHITACHI LTD·Filed 1980·Granted Jan 12, 1982·6 cites·8 claims
- 3738US5399202AResist-peeling liquid and process for peeling a resist using the sameHITACHI LTD·Filed 1992·Granted Mar 21, 1995·6 cites·8 claims
- 3837US5633175AProcess for stripping photoresist while producing liquid crystal display deviceHITACHI LTD·Filed 1995·Granted May 27, 1997·8 cites·12 claims
- 3936US6090306APiezoelectric ceramicsTDK CORP·Filed 1999·Granted Jul 18, 2000·5 cites·3 claims
- 4035US5091283APhotocurable diallyl phthalate resin composition and printed circuit board using the sameHITACHI LTD·Filed 1990·Granted Feb 25, 1992·5 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →