Inventor · disambiguated record
Takayuki Akimoto
Also filed as: AKIMOTO TAKAYUKI
19 granted patents·2 pending applications·161 citations·filing 1987–2003
95Inventor score
Files withHITACHI CHEMICAL CO LTD14HITACHI LTD3IKEZAWA RYOICHI2HITACHI CHEMICAL COMPANY CO1HITACHI CHEMICAL COMPANY CO LT1
Top patents by PatentIndex Score
21 records- 0185US5484685ANaphthalocyanine derivatives, production thereof, optical recording medium using the same, and production thereofHITACHI LTD·Filed 1991·Granted Jan 16, 1996·23 cites·25 claims
- 0283US5268485ANaphthalocyanine derivatives, production thereof and optical recording medium using the sameHITACHI CHEMICAL CO LTD·Filed 1991·Granted Dec 7, 1993·18 cites·6 claims
- 0382US5217856ATetraazaporphin, process for producing the same, as well as optical recording media using the same and production processes thereofHITACHI CHEMICAL CO LTD·Filed 1989·Granted Jun 8, 1993·14 cites·6 claims
- 0481US5034309ANaphthalocyanine derivatives and their use in optical recording mediumHITACHI CHEMICAL CO LTD·Filed 1988·Granted Jul 23, 1991·13 cites·20 claims
- 0575US5304445APhthalocyanine composition, process for preparing the same and electrophotographic photoreceptor using the sameHITACHI CHEMICAL CO LTD·Filed 1993·Granted Apr 19, 1994·10 cites·4 claims
- 0666US5214188A2,3-dicyanonaphthalene derivativesHITACHI LTD·Filed 1991·Granted May 25, 1993·7 cites·6 claims
- 0752US5449581APhthalocyanine composition, process for preparing the same, electrophotographic photoreceptor using the same and coating solution for charge generation layer containing the sameHITACHI CHEMICAL CO LTD·Filed 1993·Granted Sep 12, 1995·9 cites·12 claims
- 0851US5494767APhthalocyanine composition, process for preparing the same and electrophotographic photoreceptor using the sameHITACHI CHEMICAL COMPANY CO LT·Filed 1994·Granted Feb 27, 1996·3 cites·10 claims
- 0948US5837411APhthalocyanine electrophotographic photoreceptor for charge generation layerHITACHI CHEMICAL CO LTD·Filed 1996·Granted Nov 17, 1998·7 cites·13 claims
- 1045US5938980APhthalocyanine composition, process for preparing the same, electrophotographic photoreceptor using the same and coating solution for charge generation layer containing the sameHITACHI CHEMICAL CO LTD·Filed 1998·Granted Aug 17, 1999·6 cites·14 claims
- 1145US5039600ANaphthalocyanine derivatives, production thereof, optical recording medium using the same, and production thereofHITACHI CHEMICAL CO LTD·Filed 1990·Granted Aug 13, 1991·5 cites·35 claims
- 1243US5626999APhthalocyanine composition, process for preparing the same and electrophotographic photoreceptor using the sameHITACHI CHEMICAL CO LTD·Filed 1995·Granted May 6, 1997·7 cites·4 claims
- 1343US5534375AComposition for forming charge transport layer and electrophotographic member containing alkoxybenzeneHITACHI CHEMICAL CO LTD·Filed 1994·Granted Jul 9, 1996·6 cites·8 claims
- 1443US5496672ACoating solution for charge generation layer and electrophotographic photoreceptor using sameHITACHI CHEMICAL CO LTD·Filed 1994·Granted Mar 5, 1996·6 cites·22 claims
- 1543US5110968ANaphthalocyanine derivatives, production thereof, optical recording medium using the same, and production thereofHITACHI CHEMICAL CO LTD·Filed 1991·Granted May 5, 1992·4 cites·2 claims
- 1642US5958637AElectrophotographic photoreceptor and coating solution for production of charge transport layerHITACHI CHEMICAL CO LTD·Filed 1997·Granted Sep 28, 1999·6 cites·23 claims
- 1740US5284943ATatraazaporphin, process for producing the same, as well as optical recording media using the same and production processes thereofHITACHI CHEMICAL COMPANY CO·Filed 1992·Granted Feb 8, 1994·8 cites·14 claims
- 1840US5075203ANaphthalocyanine derivatives, production thereof and optical recording medium using the sameHITACHI CHEMICAL CO LTD·Filed 1989·Granted Dec 24, 1991·7 cites·34 claims
- 1936US2005222300A1Encapsulating epoxy resin composition, and electronic parts device using the sameIKEZAWA RYOICHI·Filed 2003·Application pending·0 cites
- 2035US2006014873A1Encapsulating epoxy resin composition, and electronic parts device using the sameIKEZAWA RYOICHI·Filed 2003·Application pending·0 cites
- 2131US5233089AEnamine derivativesHITACHI LTD·Filed 1987·Granted Aug 3, 1993·2 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →