Inventor · disambiguated record
Hitoshi Ishizawa
Also filed as: ISHIZAWA HITOSHI
20 granted patents·7 pending applications·408 citations·filing 1993–2023
94Inventor score
Top patents by PatentIndex Score
27 records- 0195US5478237AImplant and method of making the sameNIKON CORP·Filed 1993·Granted Dec 26, 1995·204 cites·7 claims
- 0294US6574039B1Optical element with multilayer thin film and exposure apparatus with the elementNIKON CORP·Filed 2000·Granted Jun 3, 2003·84 cites·15 claims
- 0392US8189170B2Optical element and exposure apparatusSHIRAI TAKESHI·Filed 2010·Granted May 29, 2012·15 cites·25 claims
- 0492US7697111B2Optical element and exposure apparatusNIKON CORP·Filed 2004·Granted Apr 13, 2010·48 cites·10 claims
- 0589US8149381B2Optical element and exposure apparatusSHIRAI TAKESHI·Filed 2006·Granted Apr 3, 2012·12 cites·12 claims
- 0688US9046796B2Optical element and exposure apparatusSHIRAI TAKESHI·Filed 2012·Granted Jun 2, 2015·6 cites·24 claims
- 0782US9915761B2Optical system having optical thin film including amorphous silicon oxide-based binderNIKON CORP·Filed 2015·Granted Mar 13, 2018·4 cites·17 claims
- 0879US8054447B2Exposure apparatus, exposure method, method for producing device, and optical partNIKON CORP·Filed 2004·Granted Nov 8, 2011·11 cites·37 claims
- 0968US10175584B2Optical element and exposure apparatusNIKON CORP·Filed 2013·Granted Jan 8, 2019·1 cites·34 claims
- 1067US8206679B2Method for producing Ca-La-F based transparent ceramic, Ca-La-F based transparent ceramic, optical element, optical system, and ceramic-forming compositionISHIZAWA HITOSHI·Filed 2010·Granted Jun 26, 2012·1 cites·12 claims
- 1165US2018364581A1Exposure apparatus, exposure method, method for producing device, and optical partNIKON CORP·Filed 2018·Application pending·0 cites
- 1264US5851655AReceiving paper for melt-type heat transfer recordingOJI PAPER CO·Filed 1997·Granted Dec 22, 1998·16 cites·17 claims
- 1362US2023333283A1Calcium fluoride polycrystalline substance, production method of calcium fluoride particle, production method of calcium fluoride polycrystalline substance, optical element, optical system, interchangeable lens and optical deviceNIKON CORP·Filed 2023·Application pending·0 cites
- 1461US9182685B2Exposure apparatus, exposure method, method for producing device, and optical partNIKON CORP·Filed 2013·Granted Nov 10, 2015·0 cites·20 claims
- 1558US10088760B2Exposure apparatus, exposure method, method for producing device, and optical partNIKON CORP·Filed 2015·Granted Oct 2, 2018·0 cites·15 claims
- 1658US8098432B2Optical multi-layer thin film, optical element, and method for producing the optical multi-layer thin filmISHIZAWA HITOSHI·Filed 2008·Granted Jan 17, 2012·3 cites·8 claims
- 1755US9019469B2Exposure apparatus, exposure method, method for producing device, and optical partNAGASAKA HIROYUKI·Filed 2006·Granted Apr 28, 2015·0 cites·23 claims
- 1855US8618008B2Ca—La—F based transparent ceramic, Ca—La—F based transparent ceramic, optical element, optical system, and ceramic-forming compositionISHIZAWA HITOSHI·Filed 2012·Granted Dec 31, 2013·0 cites·7 claims
- 1954US11642652B2Inorganic fiber sheet, honeycomb molded body and honeycomb filterOJI HOLDINGS CORP·Filed 2017·Granted May 9, 2023·0 cites·5 claims
- 2053US9586867B2CaF2 translucent ceramics and manufacturing method of CaF2 translucent ceramicsNIKON CORP·Filed 2014·Granted Mar 7, 2017·0 cites·17 claims
- 2153US2012206705A1Optical element and exposure apparatusSHIRAI TAKESHI·Filed 2012·Application pending·0 cites
- 2251US6870602B2Method for forming optical thin film and optical element provided with optical thin filmNIKON CORP·Filed 2002·Granted Mar 22, 2005·3 cites·14 claims
- 2351US2011122497A1Mgf2 optical thin film including amorphous silicon oxide binder, optical element provided with the same, and method for producing mgf2 optical thin filmNIKON CORP·Filed 2010·Application pending·0 cites
- 2450US2012058261A1Mgf2 optical thin film including amorphous silicon oxide binder, optical element provided with the same, and method for producing mgf2 optical thin filmISHIZAWA HITOSHI·Filed 2011·Application pending·0 cites
- 2550US2008002259A1Mgf2 Optical Thin Film Including Amorphous Silicon Oxide Binder, Optical Element Provided With the Same, and Method for Producing Mgf2 Optical Thin FilmISHIZAWA HITOSHI·Filed 2005·Application pending·0 cites
- 2641US7760447B2Optical member and method for manufacturing the sameNIKON CORP·Filed 2009·Granted Jul 20, 2010·0 cites·12 claims
- 2741US2011063592A1Fluorescent film, method of forming fluorescent film, multilayer dielectric film, optical element, optical system, imaging unit, optical property measuring apparatus, method of measuring optical property, exposure apparatus, exposure method, and method of manufacturing deviceNIKON CORP·Filed 2010·Application pending·0 cites
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