Inventor · disambiguated record
Akira Tsuzuki
Also filed as: TSUZUKI AKIRA
31 granted patents·2 pending applications·1,475 citations·filing 1976–2005
98Inventor score
Files withCITIZEN WATCH CO LTD17MENICON CO LTD10TOYO CONTACT LENS CO LTD3KORITSU KIKAI KOGYO COMPANY LI2KORITSU MACHINE IND LTD1
Top patents by PatentIndex Score
33 records- 0198US4345248ALiquid crystal display device with write-in capabilityCITIZEN WATCH CO LTD·Filed 1980·Granted Aug 17, 1982·234 cites·15 claims
- 0297US4430648ACombination matrix array display and memory systemCITIZEN WATCH CO LTD·Filed 1981·Granted Feb 7, 1984·163 cites·4 claims
- 0391US4652932ALiquid crystal display television receiverCITIZEN WATCH CO LTD·Filed 1985·Granted Mar 24, 1987·93 cites·12 claims
- 0491US4100540AMethod of driving liquid crystal matrix display device to obtain maximum contrast and reduce power consumptionCITIZEN WATCH CO LTD·Filed 1976·Granted Jul 11, 1978·35 cites·5 claims
- 0589US4663670ATelevision receiver having a liquid crystal display deviceCITIZEN WATCH CO LTD·Filed 1984·Granted May 5, 1987·68 cites·12 claims
- 0689US4646158ALiquid crystal television receiverCITIZEN WATCH CO LTD·Filed 1985·Granted Feb 24, 1987·107 cites·6 claims
- 0788US4268360ATemporary heat-proof apparatus for use in repairing coke ovensKORITSU MACHINE IND LTD·Filed 1980·Granted May 19, 1981·71 cites·14 claims
- 0888US4259202ACleaning and preservative solution for contact lensesTOYO CONTACT LENS CO LTD·Filed 1979·Granted Mar 31, 1981·50 cites·6 claims
- 0986US6242551B1Polymeric colorant and colored material for ocular lens using the colorantMENICON CO LTD·Filed 1999·Granted Jun 5, 2001·33 cites·4 claims
- 1086US4443062AMulti-layer display device with nonactive display element groupsCITIZEN WATCH CO LTD·Filed 1980·Granted Apr 17, 1984·59 cites·13 claims
- 1179US4500441AContact lens cleaning and storage compositionTOYO CONTACT LENS CO LTD·Filed 1984·Granted Feb 19, 1985·46 cites·4 claims
- 1279US4244043AFrequency division systemCITIZEN WATCH CO LTD·Filed 1979·Granted Jan 6, 1981·38 cites·20 claims
- 1375US6806243B2Ophthalmic solution and contact lens solutionMENICON CO LTD·Filed 2002·Granted Oct 19, 2004·12 cites·21 claims
- 1475US4232510ATimepieceCITIZEN WATCH CO LTD·Filed 1977·Granted Nov 11, 1980·22 cites·6 claims
- 1574US6544953B2Ophthalmic compositionMENICON CO LTD·Filed 2001·Granted Apr 8, 2003·20 cites·30 claims
- 1673US6417144B2Solution for contact lensesMENICON CO LTD·Filed 2001·Granted Jul 9, 2002·11 cites·5 claims
- 1773US6121327AContact lens disinfecting solutionMENICON CO LTD·Filed 1999·Granted Sep 19, 2000·84 cites·12 claims
- 1873US4264967AUnit time producing systemCITIZEN WATCH CO LTD·Filed 1979·Granted Apr 28, 1981·21 cites·16 claims
- 1972US4345612AAnesthetic gas control apparatusCITIZEN WATCH CO LTD·Filed 1980·Granted Aug 24, 1982·130 cites·8 claims
- 2072US4024416AMethod for controlling frequency of electrical oscillations and frequency standard for electronic timepieceCITIZEN WATCH CO LTD·Filed 1976·Granted May 17, 1977·13 cites·22 claims
- 2169US6320008B2Polymeric colorant and colored material for ocular lens using the colorantMENICON CO LTD·Filed 2001·Granted Nov 20, 2001·12 cites·2 claims
- 2268US5919742AContact lens cleaning material formed of a polymerMENICON CO LTD·Filed 1997·Granted Jul 6, 1999·25 cites·13 claims
- 2364US4465999AMatrix driving method for electro-optical display deviceCITIZEN WATCH CO LTD·Filed 1979·Granted Aug 14, 1984·19 cites·5 claims
- 2463US4389728AFrequency dividerCITIZEN WATCH CO LTD·Filed 1980·Granted Jun 21, 1983·12 cites·4 claims
- 2561US6177480B1Agent for contact lensesMENICON CO LTD·Filed 1999·Granted Jan 23, 2001·17 cites·20 claims
- 2660US4241435AElectronic timepiece oscillator circuitCITIZEN WATCH CO LTD·Filed 1979·Granted Dec 23, 1980·9 cites·9 claims
- 2755US4356483AMatrix drive system for liquid crystal displayCITIZEN WATCH CO LTD·Filed 1980·Granted Oct 26, 1982·14 cites·3 claims
- 2854US4440662ACleaning composition for contact lensesTOYO CONTACT LENS CO LTD·Filed 1982·Granted Apr 3, 1984·44 cites·13 claims
- 2945US4248562ACoke guide carKORITSU KIKAI KOGYO COMPANY LI·Filed 1979·Granted Feb 3, 1981·5 cites·2 claims
- 3044US4243490ARadial cutter type cleaning apparatus for coke oven door bottom surfaceKORITSU KIKAI KOGYO COMPANY LI·Filed 1979·Granted Jan 6, 1981·4 cites·6 claims
- 3142US2006052340A1Ophthalmic solutionMENICON CO LTD·Filed 2005·Application pending·0 cites
- 3242US2006035842A1Ophthalmic compositionMENICON CO LTD·Filed 2005·Application pending·0 cites
- 3336US4300137AMatrix driving method for electro-optical display deviceCITIZEN WATCH CO LTD·Filed 1979·Granted Nov 10, 1981·4 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →