Inventor · disambiguated record
Kazuo Ohta
Also filed as: OHTA KAZUO
23 granted patents·3 pending applications·1,302 citations·filing 1977–2016
96Inventor score
Top patents by PatentIndex Score
26 records- 0197US4977595AMethod and apparatus for implementing electronic cashNIPPON TELEGRAPH & TELEPHONE·Filed 1990·Granted Dec 11, 1990·433 cites·54 claims
- 0289US8917342B2Solid-state imaging element, method for producing solid-state imaging element, and electronic deviceOHTA KAZUO·Filed 2012·Granted Dec 23, 2014·13 cites·13 claims
- 0380US9537653B2Encryption key generating apparatus and computer program productKOMANO YUICHI·Filed 2012·Granted Jan 3, 2017·8 cites·3 claims
- 0475US5889862AMethod and apparatus for implementing traceable electronic cashNIPPON TELEGRAPH & TELEPHONE·Filed 1996·Granted Mar 30, 1999·101 cites·18 claims
- 0574US7496759B2Multisignature method, apparatus, program, and systemTOSHIBA KK·Filed 2005·Granted Feb 24, 2009·6 cites·33 claims
- 0670US5224162AElectronic cash systemNIPPON TELEGRAPH & TELEPHONE·Filed 1992·Granted Jun 29, 1993·194 cites·11 claims
- 0769US6202076B1Scheme for arithmetic operations in finite field and group operations over elliptic curves realizing improved computational speedNIPPON TELEGRAPH & TELEPHONE·Filed 2000·Granted Mar 13, 2001·16 cites·12 claims
- 0868US6769063B1Data converter and recording medium on which program for executing data conversion is recordedNIPPON TELEGRAPH & TELEPHONE·Filed 1999·Granted Jul 27, 2004·65 cites·54 claims
- 0968US5901229AElectronic cash implementing method using a trusteeNIPPON TELEGRAPH & TELEPHONE·Filed 1996·Granted May 4, 1999·163 cites·24 claims
- 1067US4969189AAuthentication system and apparatus thereforNIPPON TELEGRAPH & TELEPHONE·Filed 1989·Granted Nov 6, 1990·127 cites·31 claims
- 1166US6266688B1Scheme for arithmetic operations in finite field and group operations over elliptic curves realizing improved computational speedNIPPON TELEGRAPH & TELEPHONE·Filed 2000·Granted Jul 24, 2001·12 cites·3 claims
- 1266US6212637B1Method and apparatus for en-bloc verification of plural digital signatures and recording medium with the method recorded thereonNIPPON TELEGRAPH & TELEPHONE·Filed 1998·Granted Apr 3, 2001·59 cites·70 claims
- 1366US6038581AScheme for arithmetic operations in finite field and group operations over elliptic curves realizing improved computational speedNIPPON TELEGRAPH & TELEPHONE·Filed 1998·Granted Mar 14, 2000·39 cites·18 claims
- 1466US4855235AMonoclonal antibodies to human leukocyte antigensTAKAHASHI TOSHITADA·Filed 1984·Granted Aug 8, 1989·28 cites·3 claims
- 1563US8427372B2Array antennaSAKAI FUMINORI·Filed 2009·Granted Apr 23, 2013·8 cites·10 claims
- 1647US4100456ALuminescent display panel comprising a sealing mass for eliminating slow leaks along leadsNIPPON ELECTRIC KAGOSHIMA LTD·Filed 1977·Granted Jul 11, 1978·6 cites·11 claims
- 1747US2010197919A1Method for producing macrolide compound and production intermediate thereofTSUCHIDA TOSHIO·Filed 2008·Application pending·0 cites
- 1843US9984239B2Concealing apparatus, decoding apparatus, concealing method, and decoding methodTOSHIBA KK·Filed 2016·Granted May 29, 2018·0 cites·21 claims
- 1942US10027479B2Generating device, encryption device, decryption device, generating method, encryption method, decryption method, and computer program productTOSHIBA KK·Filed 2014·Granted Jul 17, 2018·0 cites·18 claims
- 2040US2011220045A1Variable valve device and control method thereofKOMATSU MFG CO LTD·Filed 2009·Application pending·0 cites
- 2140US2011214631A1Variable valve device and method of controlling the sameKOMATSU MFG CO LTD·Filed 2009·Application pending·0 cites
- 2239US7187769B1Method and apparatus for evaluating the strength of an encryptionNIPPON TELEGRAPH & TELEPHONE·Filed 1999·Granted Mar 6, 2007·12 cites·15 claims
- 2337US9269735B2Method of manufacturing solid-state imaging device, solid-state imaging device, and electronic apparatusOHTA KAZUO·Filed 2011·Granted Feb 23, 2016·0 cites·15 claims
- 2436US5518255ACarbon-based composite ceramic sealing materialNGK INSULATORS LTD·Filed 1993·Granted May 21, 1996·9 cites·19 claims
- 2535US8876542B2Connector and construction machineKOMATSU MFG CO LTD·Filed 2012·Granted Nov 4, 2014·0 cites·5 claims
- 2627US5540451AComposite sealing materialTOKYO ELECTRIC POWER SERV CO·Filed 1994·Granted Jul 30, 1996·3 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →