Inventor · disambiguated record
Susumu Era
Also filed as: ERA SUSUMU · ITO TATSUO
18 granted patents·261 citations·filing 1977–1992
95Inventor score
Top patents by PatentIndex Score
18 records- 0188US4634228AFerroelectric liquid crystal cell with rubbed polyimide alignment layerHITACHI LTD·Filed 1984·Granted Jan 6, 1987·42 cites·3 claims
- 0286US4460783AEther imides and process for producing the sameHITACHI LTD·Filed 1981·Granted Jul 17, 1984·36 cites·13 claims
- 0385US5484685ANaphthalocyanine derivatives, production thereof, optical recording medium using the same, and production thereofHITACHI LTD·Filed 1991·Granted Jan 16, 1996·23 cites·25 claims
- 0481US5034309ANaphthalocyanine derivatives and their use in optical recording mediumHITACHI CHEMICAL CO LTD·Filed 1988·Granted Jul 23, 1991·13 cites·20 claims
- 0574US4781439ALiquid crystal polyimide alignment free of scattering domainsHITACHI LTD·Filed 1987·Granted Nov 1, 1988·18 cites·6 claims
- 0672US4154777AProcess for producing high impact and weather resistant graft copolymersHITACHI CHEMICAL CO LTD·Filed 1977·Granted May 15, 1979·17 cites·27 claims
- 0766US5214188A2,3-dicyanonaphthalene derivativesHITACHI LTD·Filed 1991·Granted May 25, 1993·7 cites·6 claims
- 0865US4278786AAromatic polyamides containing ether linkages and process for producing sameHITACHI LTD·Filed 1979·Granted Jul 14, 1981·14 cites·14 claims
- 0964US4759614AFerroelectric liquid crystal element with particular alignment film and a method for manufacturing the sameHITACHI LTD·Filed 1986·Granted Jul 26, 1988·23 cites·26 claims
- 1063US5180786AImpact modifier, thermoplastic resin composition using the same and molded article obtained therefromHITACHI CHEMICAL CO LTD·Filed 1989·Granted Jan 19, 1993·14 cites·6 claims
- 1160US4927735ANovel naphthalocyanine dye, method for preparing the same, and optical information recording medium employing the sameHITACHI CHEMICAL CO LTD·Filed 1987·Granted May 22, 1990·11 cites·12 claims
- 1253US5219706ANaphthalocyanine derivative and production process thereof, as well as optical information recording media using the derivatives and production process thereofHITACHI CHEMICAL CO LTD·Filed 1992·Granted Jun 15, 1993·4 cites·17 claims
- 1353US4942073AOptical data storage mediumHITACHI LTD·Filed 1989·Granted Jul 17, 1990·13 cites·13 claims
- 1447US4653866ALiquid crystal compound and liquid crystal composition including the sameHITACHI LTD·Filed 1985·Granted Mar 31, 1987·9 cites·18 claims
- 1539US5020883AFerroelectric liquid crystal deviceHITACHI LTD·Filed 1988·Granted Jun 4, 1991·5 cites·4 claims
- 1639US4645305ALiquid-crystal compound, liquid crystal composition and liquid crystal display deviceHITACHI LTD·Filed 1984·Granted Feb 24, 1987·6 cites·9 claims
- 1732USRE34885ELiquid crystal polyimide alignment free of scattering domainsHITACHI LTD·Filed 1992·Granted Mar 28, 1995·3 cites·7 claims
- 1832US5321078AThermoplastic resin composition and molded articles obtained therefromHITACHI CHEMICAL CO LTD·Filed 1992·Granted Jun 14, 1994·3 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →