Inventor · disambiguated record
Takashi Fujikura
Also filed as: FUJIKURA TAKASHI · IMAI KAZUO · IWANAMI MASARU
54 granted patents·1 pending application·536 citations·filing 1977–2021
98Inventor score
Files withYAMANOUCHI PHARMA CO LTD28OLYMPUS CORP19FUJIKURA TAKASHI4MIKASA CORP2OM DIGITAL SOLUTIONS CORP1
Top patents by PatentIndex Score
55 records- 0197US9958656B2Zoom lens and image pickup apparatus using the sameOLYMPUS CORP·Filed 2016·Granted May 1, 2018·20 cites·71 claims
- 0297US4703063ASulfamoyl substituted phenethylamine derivatives and process of producing themYAMANOUCHI PHARMA CO LTD·Filed 1985·Granted Oct 27, 1987·91 cites·19 claims
- 0395US4731478ASulfamoyl-substituted phenethylamine derivatives, their preparation, and pharmaceutical compositions, containing themYAMANOUCHI PHARMA CO LTD·Filed 1985·Granted Mar 15, 1988·63 cites·4 claims
- 0493US4217305APhenylethanolamine derivativesYAMANOUCHI PHARMA CO LTD·Filed 1978·Granted Aug 12, 1980·48 cites·9 claims
- 0591US10768396B2Zoom lens and image pickup apparatus using the sameOLYMPUS CORP·Filed 2018·Granted Sep 8, 2020·7 cites·31 claims
- 0691US5447958ASulfamoyl-substituted phenethylamine derivatives, their preparation, and pharmaceutical compositions, containing themYAMANOUCHI PHARMA CO LTD·Filed 1994·Granted Sep 5, 1995·37 cites·2 claims
- 0789US6962120B1Seam forming method using sewing machineMIKASA CORP·Filed 2004·Granted Nov 8, 2005·41 cites·10 claims
- 0889US4373106ASulfamoyl-substituted phenethylamine derivatives and process of producing themYAMANOUCHI PHARMA CO LTD·Filed 1981·Granted Feb 8, 1983·23 cites·13 claims
- 0988US9823452B2Zoom lens and image pickup apparatus using the sameOLYMPUS CORP·Filed 2015·Granted Nov 21, 2017·6 cites·18 claims
- 1085US10215969B2Image forming lens system and image pickup apparatus using the sameOLYMPUS CORP·Filed 2016·Granted Feb 26, 2019·3 cites·30 claims
- 1185US4109088A2-(indenyloxymethyl) morpholine derivativesYAMANOUCHI PHARMA CO LTD·Filed 1977·Granted Aug 22, 1978·15 cites·13 claims
- 1284US9291799B2Zoom lens, image pickup apparatus using the same, and information processing apparatusOLYMPUS CORP·Filed 2013·Granted Mar 22, 2016·8 cites·39 claims
- 1383US4868216ASulfamoyl-substituted phenethylamine derivatives and process of producing themYAMANOUCHI PHARMA CO LTD·Filed 1989·Granted Sep 19, 1989·19 cites·1 claims
- 1482US12066603B2Wide-angle optical system including three lens units of −++ refractive powers, and image pickup apparatus using the sameOLYMPUS CORP·Filed 2021·Granted Aug 20, 2024·1 cites·36 claims
- 1582US9297984B2Image forming lens system and image pickup apparatus using the sameOLYMPUS CORP·Filed 2014·Granted Mar 29, 2016·3 cites·31 claims
- 1681US10656399B2Variable magnification optical system and image pickup apparatus using the sameOLYMPUS CORP·Filed 2017·Granted May 19, 2020·4 cites·68 claims
- 1781US10288856B2Variable magnification optical system and image pickup apparatus using the sameOLYMPUS CORP·Filed 2018·Granted May 14, 2019·4 cites·19 claims
- 1881US9395520B2Single focal length lens system and image pickup apparatus using the sameOLYMPUS CORP·Filed 2014·Granted Jul 19, 2016·5 cites·65 claims
- 1980US4558156ASulfamoyl-substituted phenethylamine derivativesYAMANOUCHI PHARMA CO LTD·Filed 1984·Granted Dec 10, 1985·11 cites·10 claims
- 2079US9519124B2Single focal length lens system and image pickup apparatus using the sameOLYMPUS CORP·Filed 2014·Granted Dec 13, 2016·4 cites·46 claims
- 2177US5198587APhenethylamine derivativesYAMANOUCHI PHARMA CO LTD·Filed 1991·Granted Mar 30, 1993·15 cites·3 claims
- 2276US8672783B2Sports ballFUJIKURA TAKASHI·Filed 2012·Granted Mar 18, 2014·14 cites·2 claims
- 2376US4987152AUse of sulfamoyl-substituted phenethylamine derivatives in treatment of lower urinary tract dysfunctionYAMANOUCHI PHARMA CO LTD·Filed 1989·Granted Jan 22, 1991·13 cites·1 claims
- 2475US9400371B2Image forming lens system and image pickup apparatus using the sameOLYMPUS CORP·Filed 2014·Granted Jul 26, 2016·2 cites·71 claims
- 2573US9588324B2Zoom lens and image pickup apparatus using the sameOLYMPUS CORP·Filed 2015·Granted Mar 7, 2017·2 cites·20 claims
- 2673US5391825ASulfamoyl substituted phenethylamine intermediatesYAMANOUCHI PHARMA CO LTD·Filed 1993·Granted Feb 21, 1995·11 cites·4 claims
- 2773US4761500ASulfamoyl-substituted phenethylamine derivatives, their preparation, and pharmaceutical compositions, containing themYAMANOUCHI PHARMA CO LTD·Filed 1986·Granted Aug 2, 1988·11 cites·2 claims
- 2868US8665530B2Zoom lens and image pickup apparatus using the sameFUJIKURA TAKASHI·Filed 2012·Granted Mar 4, 2014·2 cites·7 claims
- 2965US10185131B2Zoom lens and lens barrel and image pickup apparatus using the sameOLYMPUS CORP·Filed 2016·Granted Jan 22, 2019·1 cites·18 claims
- 3061US8891799B2EarphoneFUJIKURA TAKASHI·Filed 2009·Granted Nov 18, 2014·3 cites·11 claims
- 3160US11372217B2Image forming lens system and image pickup apparatus using the sameOM DIGITAL SOLUTIONS CORP·Filed 2019·Granted Jun 28, 2022·0 cites·30 claims
- 3259US8801553B2Sports ballFUJIKURA TAKASHI·Filed 2011·Granted Aug 12, 2014·2 cites·3 claims
- 3355US5039674A1,4-dihydropyridine derivativesYAMANOUCHI PHARMA CO LTD·Filed 1990·Granted Aug 13, 1991·4 cites·3 claims
- 3455US4782160A1,4-dihydropyridine derivativesYAMANOUCHI PHARMA CO LTD·Filed 1987·Granted Nov 1, 1988·3 cites·1 claims
- 3552US12117602B2Wide-angle optical system and image pickup apparatus using the sameOLYMPUS CORP·Filed 2021·Granted Oct 15, 2024·0 cites·30 claims
- 3651US9946050B2Image forming lens system and image pickup apparatus using the sameOLYMPUS CORP·Filed 2016·Granted Apr 17, 2018·0 cites·20 claims
- 3751US9547161B2Single focal length lens system and image pickup apparatus using the sameOLYMPUS CORP·Filed 2014·Granted Jan 17, 2017·0 cites·39 claims
- 3850US12085707B2Wide-angle optical system and image pickup apparatus using the sameOLYMPUS CORP·Filed 2021·Granted Sep 10, 2024·0 cites·34 claims
- 3949US5063246APhenethylamine derivative compositions and useYAMANOUCHI PHARMA CO LTD·Filed 1990·Granted Nov 5, 1991·11 cites·5 claims
- 4047US5110820ADihydropyridine compounds which process both calcium (2+)-antagonistic and beta receptor blocking activitiesYAMANOUCHI PHARMA CO LTD·Filed 1990·Granted May 5, 1992·5 cites·2 claims
- 4147US4880841AProcess of producing phenethylamine derivativesYAMANOUCHI PHARMA CO LTD·Filed 1989·Granted Nov 14, 1989·9 cites·5 claims
- 4245US4876261ASubstituted tetrahydroisoquinoline compounds and composition containing themTANAKA AKIHIRO·Filed 1988·Granted Oct 24, 1989·1 cites·8 claims
- 4344US5591757ADihydropyridine compositionYAMANOUCHI PHARMA CO LTD·Filed 1995·Granted Jan 7, 1997·4 cites·1 claims
- 4442US11071891B2Exercise ball manufacturing methodMIKASA CORP·Filed 2018·Granted Jul 27, 2021·0 cites·2 claims
- 4542US5077406AProduction of 2-amino-7-(6-fluoro-3,4-hydroxyphenyl)-4,5,6,7-tetrahydrothiazolo[4,5-c]pyridine dihydrobromideYAMANOUCHI PHARMA CO LTD·Filed 1990·Granted Dec 31, 1991·1 cites·1 claims
- 4642US2021181488A1Wide-angle optical system and image pickup apparatus using the sameOLYMPUS CORP·Filed 2021·Application pending·0 cites
- 4740US5378849ASubstituted tetrahydroisoquinoline compounds, and process for producing them, and composition containing themYAMANOUCHI PHARMA CO LTD·Filed 1992·Granted Jan 3, 1995·1 cites·5 claims
- 4839US4727082ADihydropyridine compounds and pharmaceutical compositions containing themYAMANOUCHI PHARMA CO LTD·Filed 1986·Granted Feb 23, 1988·2 cites·10 claims
- 4937US4904660AHistidine derivatives as superior renin inhibitorsYAMANOUCHI PHARMA CO LTD·Filed 1988·Granted Feb 27, 1990·5 cites·10 claims
- 5035US5079256ASubstituted tetrahydroisoquinoline compounds and method containing themYAMANOUCHI PHARMA CO LTD·Filed 1989·Granted Jan 7, 1992·0 cites·4 claims
Showing the top 50 of 55 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Takashi Fujikura files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →