Inventor · disambiguated record
Toshikazu Narahara
Also filed as: NARAHARA TOSHIKAZU
42 granted patents·623 citations·filing 1974–1992
98Inventor score
Top patents by PatentIndex Score
42 records- 0193US4352897AResin molded statorsHITACHI LTD·Filed 1979·Granted Oct 5, 1982·81 cites·12 claims
- 0291US5021296ACircuit board and process for producing the sameHITACHI LTD·Filed 1989·Granted Jun 4, 1991·66 cites·33 claims
- 0387US4070416ANovel thermosetting resin and a process for producing sameHITACHI LTD·Filed 1975·Granted Jan 24, 1978·39 cites·48 claims
- 0484US4661417AComposite of metal and resin having electrolytically reduced metal layer and process for producing the sameHITACHI LTD·Filed 1984·Granted Apr 28, 1987·43 cites·40 claims
- 0582US4612127ALubricant for metal forming and process for metal formingHITACHI LTD·Filed 1984·Granted Sep 16, 1986·29 cites·18 claims
- 0680US5028513AProcess for producing printed circuit boardHITACHI LTD·Filed 1989·Granted Jul 2, 1991·40 cites·21 claims
- 0778US4366516APrecision machinery componentHITACHI LTD·Filed 1980·Granted Dec 28, 1982·30 cites·23 claims
- 0878US3984376AThermosetting resin compositions prepared from isocyanates and epoxyphenolsHITACHI LTD·Filed 1974·Granted Oct 5, 1976·21 cites·22 claims
- 0975US4393177AThermosetting resin composition, process for preparation thereof and cured product thereofHITACHI LTD·Filed 1981·Granted Jul 12, 1983·21 cites·24 claims
- 1074US4781439ALiquid crystal polyimide alignment free of scattering domainsHITACHI LTD·Filed 1987·Granted Nov 1, 1988·18 cites·6 claims
- 1172US3979365AProcess for producing thermosetting resinsHITACHI LTD·Filed 1974·Granted Sep 7, 1976·17 cites·19 claims
- 1267US4222802AProcess for producing electric windingsHITACHI LTD·Filed 1979·Granted Sep 16, 1980·16 cites·8 claims
- 1363US4784917AThermosetting resin composition and laminate and process for the production thereofHITACHI LTD·Filed 1986·Granted Nov 15, 1988·18 cites·8 claims
- 1460US5223342AMagnetic recording medium having a lubricating layer comprising a binder and specified perfluoro polyoxyalkyl lubricantHITACHI LTD·Filed 1991·Granted Jun 29, 1993·12 cites·16 claims
- 1559US4690858AThermal transfer sheetHITACHI LTD·Filed 1986·Granted Sep 1, 1987·16 cites·16 claims
- 1658US5071715AMagnetic recording medium with a lubricant layer containing a perfluoro polyoxyalkyl compoundHITACHI LTD·Filed 1989·Granted Dec 10, 1991·10 cites·8 claims
- 1755US4129554AThermosettable, polymerizable resin composition comprising a polyepoxide and a polyisocyanate stabilized by incorporating an organic electron acceptorHITACHI CHEMICAL CO LTD·Filed 1977·Granted Dec 12, 1978·9 cites·28 claims
- 1852US4933228AThermosetting resin and prepreg and laminate using the sameHITACHI LTD·Filed 1989·Granted Jun 12, 1990·9 cites·2 claims
- 1952US4828924AMagnetic recording mediumHITACHI MAXELL·Filed 1987·Granted May 9, 1989·10 cites·4 claims
- 2051US4269894AElectric windings and production thereof characterized by the use of a condensation type silicon resin for combination with an addition type silicon resinHITACHI LTD·Filed 1979·Granted May 26, 1981·11 cites·17 claims
- 2151US4105599AProcess for producing rigid polyurethane foamHITACHI LTD·Filed 1976·Granted Aug 8, 1978·7 cites·8 claims
- 2249US5212244AThermosetting resin composition, and prepreg and laminated sheet which use the sameHITACHI LTD·Filed 1991·Granted May 18, 1993·7 cites·1 claims
- 2349US4304818AInsulation system for winding of electric rotating machines and process of production thereofHITACHI LTD·Filed 1979·Granted Dec 8, 1981·10 cites·23 claims
- 2448US4946734AResin composition for printed circuit board and such board formed by use thereofHITACHI LTD·Filed 1987·Granted Aug 7, 1990·9 cites·4 claims
- 2544US4100114APolyurethane foam compositionHITACHI LTD·Filed 1975·Granted Jul 11, 1978·6 cites·7 claims
- 2643US4978596AElectrophotographic toner comprising lactone-modified epoxy resinHITACHI LTD·Filed 1986·Granted Dec 18, 1990·9 cites·6 claims
- 2742US4607094AThermosetting resin composition from aromatic cyanamideHITACHI LTD·Filed 1985·Granted Aug 19, 1986·4 cites·8 claims
- 2842US4297471AOdorless or low-odor crosslinkable compound and resin composition containing the sameHITACHI CHEMICAL CO LTD·Filed 1980·Granted Oct 27, 1981·3 cites·10 claims
- 2942US4128531AThermosetting resin compositionHITACHI CHEMICAL CO LTD·Filed 1977·Granted Dec 5, 1978·6 cites·8 claims
- 3039US5166283APolymer having dihydropyridine rings or dihydrotriazine rings, process for producing the same, and applications thereofHITACHI LTD·Filed 1991·Granted Nov 24, 1992·3 cites·12 claims
- 3139US4886858AThermosetting resin and prepreg and laminate using the sameHITACHI LTD·Filed 1987·Granted Dec 12, 1989·5 cites·6 claims
- 3238US5128435AMagnetic recording medium based on epoxy resins modified by isocyanates with poly(perfluoroether) backbonesHITACHI LTD·Filed 1990·Granted Jul 7, 1992·3 cites·11 claims
- 3338US4900807APolymer from nitrile terminated compounds having Schiff bonds and process for preparing the sameHITACHI LTD·Filed 1988·Granted Feb 13, 1990·3 cites·22 claims
- 3438US4369288AOdorless or low-odor crosslinkable compound and resin composition containing the sameHITACHI CHEMICAL CO LTD·Filed 1981·Granted Jan 18, 1983·2 cites·8 claims
- 3536US5041478AResin composition for printed circuit boardHITACHI LTD·Filed 1990·Granted Aug 20, 1991·4 cites·4 claims
- 3635US5223594AFlame-retardant resin composition containing a bromostyrene prepolymerHITACHI LTD·Filed 1990·Granted Jun 29, 1993·3 cites·4 claims
- 3735US4931507AComposition comprising poly(p-hydroxystrene) derivative, epoxy-modified polybutadiene and aromatic maleimideHITACHI LTD·Filed 1988·Granted Jun 5, 1990·3 cites·6 claims
- 3835US4738900AThermo-setting, polymerizable composition and wiring boardHITACHI LTD·Filed 1986·Granted Apr 19, 1988·6 cites·14 claims
- 3935US4587162AResin composition and laminate produced therefrom comprising a cyclized polybutadiene and a prepolymer of a isocyanuric or cyanuric acid derivativeHITACHI LTD·Filed 1985·Granted May 6, 1986·4 cites·14 claims
- 4035US4026872AEpoxy resin compositionsHITACHI LTD·Filed 1976·Granted May 31, 1977·4 cites·6 claims
- 4134US5080965APrepreg from poly(p-hydroxystyrene), epoxy-modified polybutadiene and maleimideHITACHI LTD·Filed 1990·Granted Jan 14, 1992·3 cites·6 claims
- 4232USRE34885ELiquid crystal polyimide alignment free of scattering domainsHITACHI LTD·Filed 1992·Granted Mar 28, 1995·3 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →