Inventor · disambiguated record
Itsuo Takeuchi
Also filed as: TAKEUCHI ITSUO
32 granted patents·6 pending applications·1,009 citations·filing 1983–2013
97Inventor score
Files withNHK SPRING CO LTD24HOSHINO HIDEKAZU8TAKEUCHI ITSUO2KIKKOMAN CORP1NIPPON MITSUBISHI OIL CORP1
Top patents by PatentIndex Score
38 records- 0196US5300764ATransparent optical identification label with infrared directivityNHK SPRING CO LTD·Filed 1992·Granted Apr 5, 1994·132 cites·6 claims
- 0294US5602381AObjects to be checked for authenticity, and method and apparatus for checking whether or not objects are authenticNHK SPRING CO LTD·Filed 1994·Granted Feb 11, 1997·158 cites·15 claims
- 0392US8915437B2Identification medium, method for reading data therefrom, apparatus for identification, and method and apparatus for production thereofHOSHINO HIDEKAZU·Filed 2011·Granted Dec 23, 2014·12 cites·9 claims
- 0491US6061122AOptical identification system using cholesteric liquid crystalsNHK SPRING CO LTD·Filed 1998·Granted May 9, 2000·86 cites·19 claims
- 0589US6301047B1System for optically identifying an objectNHK SPRING CO LTD·Filed 1999·Granted Oct 9, 2001·75 cites·9 claims
- 0686US7879415B2Discrimination medium and discrimination method thereforNHK SPRING CO LTD·Filed 2005·Granted Feb 1, 2011·5 cites·12 claims
- 0786US5497227ASystem for determining the authenticity of an objectNHK SPRING CO LTD·Filed 1993·Granted Mar 5, 1996·131 cites·7 claims
- 0882US7201821B2Identifying medium and identifying method for objectNHK SPRING CO LTD·Filed 2003·Granted Apr 10, 2007·21 cites·7 claims
- 0982US5756220AObject to be checked for authenticity and a method for manufacturing the sameNHK SPRING CO LTD·Filed 1996·Granted May 26, 1998·73 cites·9 claims
- 1082US5601931AObject to be checked for authenticity and a method for manufacturing the sameNHK SPRING CO LTD·Filed 1994·Granted Feb 11, 1997·68 cites·2 claims
- 1181US8970953B2Identification medium and identification method thereforHOSHINO HIDEKAZU·Filed 2010·Granted Mar 3, 2015·3 cites·4 claims
- 1281US7391546B2Discrimination medium and discrimination method using the sameNHK SPRING CO LTD·Filed 2004·Granted Jun 24, 2008·14 cites·18 claims
- 1381US6740431B2Medium for identifying matter to be identified and method for production thereofNHK SPRING CO LTD·Filed 2001·Granted May 25, 2004·20 cites·8 claims
- 1479US8168080B2Identifying medium, identifying medium manufacturing method, article, and identifying medium identifying methodHOSHINO HIDEKAZU·Filed 2007·Granted May 1, 2012·3 cites·18 claims
- 1578US8322753B2Identification medium, identification method, and identification apparatusHOSHINO HIDEKAZU·Filed 2007·Granted Dec 4, 2012·3 cites·9 claims
- 1678US6628439B2Genuineness detecting system and method for using genuineness detecting filmNIPPON MITSUBISHI OIL CORP·Filed 1999·Granted Sep 30, 2003·70 cites·25 claims
- 1778US5451759AUsing high-permeability magnetic elements randomly scattered in the objectsNHK SPRING CO LTD·Filed 1994·Granted Sep 19, 1995·68 cites·6 claims
- 1875US9298036B2Identification mediumHOSHINO HIDEKAZU·Filed 2012·Granted Mar 29, 2016·2 cites·10 claims
- 1975US8297522B2Multilayer reflector, authentication card, bar code label, authentication system, and authentication region forming systemUMEMOTO SEIJI·Filed 2006·Granted Oct 30, 2012·9 cites·20 claims
- 2075US7812937B2Identification medium, article, identification device, and method of identifying identification mediumNHK SPRING CO LTD·Filed 2007·Granted Oct 12, 2010·1 cites·8 claims
- 2170US8652592B2Discrimination medium and discrimination method for discriminating the sameHOSHINO HIDEKAZU·Filed 2010·Granted Feb 18, 2014·1 cites·1 claims
- 2270US8158239B2Identification mediumTAKEUCHI ITSUO·Filed 2006·Granted Apr 17, 2012·1 cites·2 claims
- 2369US7388627B2Discrimination medium and article to be discriminatedNHK SPRING CO LTD·Filed 2004·Granted Jun 17, 2008·8 cites·24 claims
- 2463US7943392B2Discrimination medium, discrimination method, article to be discriminated, and discrimination apparatusNHK SPRING CO LTD·Filed 2004·Granted May 17, 2011·5 cites·9 claims
- 2561US5473147AMethod and an apparatus for checking objects to be checked for authenticityNHK SPRING CO LTD·Filed 1993·Granted Dec 5, 1995·31 cites·7 claims
- 2660US9643444B2Identification mediumNHK SPRING CO LTD·Filed 2013·Granted May 9, 2017·0 cites·15 claims
- 2760US7590239B2Object identifying medium using multi-layer thin-filmNHK SPRING CO LTD·Filed 2003·Granted Sep 15, 2009·2 cites·10 claims
- 2859US2007081144A1Discrimination medium and discrimination method for discriminating the sameNHK SPRING CO LTD·Filed 2004·Application pending·0 cites
- 2957US2008138543A1Identification Medium, Article Equipped With Identification Medium, Identifying Method And DeviceNHK SPRING CO LTD·Filed 2005·Application pending·0 cites
- 3055US2015069128A1Optical reading device, optical reading method, and programNHK SPRING CO LTD·Filed 2013·Application pending·0 cites
- 3151US9688090B2Identification mediumNHK SPRING CO LTD·Filed 2013·Granted Jun 27, 2017·0 cites·1 claims
- 3249US2008136979A1Identification Medium and Article with Identification MediumNHK SPRING CO LTD·Filed 2006·Application pending·0 cites
- 3348US8279394B2Discrimination medium comprising a liquid crystal layer acting as a half-wave plate wherein a gradation of gradual or continuous color changes are displayed according to an areaHOSHINO HIDEKAZU·Filed 2007·Granted Oct 2, 2012·0 cites·3 claims
- 3446US2014160540A1Identification mediumHOSHINO HIDEKAZU·Filed 2012·Application pending·0 cites
- 3537US5707753APulse generating element and a method and an apparatus for manufacturing the sameNHK SPRING CO LTD·Filed 1995·Granted Jan 13, 1998·5 cites·10 claims
- 3636US8231953B2Transparent plastic container for anticounterfeit systemTAKEUCHI ITSUO·Filed 2007·Granted Jul 31, 2012·0 cites·6 claims
- 3733US2004171162A1Discrimination markFiled 2002·Application pending·0 cites
- 3826US4547372AMethod for brewing SakeKIKKOMAN CORP·Filed 1983·Granted Oct 15, 1985·2 cites·2 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →