Inventor · disambiguated record
Hiromasa Sato
Also filed as: SATO HIROMASA
37 granted patents·9 pending applications·490 citations·filing 1979–2021
97Inventor score
Files withASAHI GLASS CO LTD23TABATA CO LTD10SHINETSU CHEMICAL CO4DAINICHISEIKA COLOR CHEM3MIYASAKA KOJI2
Top patents by PatentIndex Score
46 records- 0193US6580674B1Phase shifter and optical head device mounted with the sameASAHI GLASS CO LTD·Filed 2000·Granted Jun 17, 2003·60 cites·8 claims
- 0291US7142363B2Diffraction element and optical deviceASAHI GLASS CO LTD·Filed 2005·Granted Nov 28, 2006·51 cites·16 claims
- 0388US7388822B2Liquid crystal lens element and optical head deviceASAHI GLASS CO LTD·Filed 2006·Granted Jun 17, 2008·15 cites·9 claims
- 0486US5329643ADiving face maskTABATA CO LTD·Filed 1993·Granted Jul 19, 1994·41 cites·15 claims
- 0584US9281136B2Method for producing electrode material for vacuum circuit breaker, electrode material for vacuum circuit breaker and electrode for vacuum circuit breakerNODA YASUSHI·Filed 2011·Granted Mar 8, 2016·5 cites·2 claims
- 0684US7688700B2Phase correction element and optical head deviceASAHI GLASS CO LTD·Filed 2005·Granted Mar 30, 2010·6 cites·11 claims
- 0783US7134149B2Face mask for divingTABATA CO LTD·Filed 2003·Granted Nov 14, 2006·21 cites·5 claims
- 0882US6618116B1Optical head device and a diffraction element suitable for the device, and a method of manufacturing the diffraction element and the optical head deviceASAHI GLASS CO LTD·Filed 1998·Granted Sep 9, 2003·37 cites·16 claims
- 0981US7534370B2Polymerizable liquid crystal composition, optical anisotropic material, optical element and optical head deviceASAHI GLASS CO LTD·Filed 2007·Granted May 19, 2009·4 cites·14 claims
- 1081US7090594B2Attachment for golf teeTABATA CO LTD·Filed 2005·Granted Aug 15, 2006·18 cites·3 claims
- 1181USD266031SDiver's maskTABATA CO LTD·Filed 1979·Granted Sep 7, 1982·14 cites·1 claims
- 1280US9570245B2Method for producing electrode material for vacuum circuit breaker, electrode material for vacuum circuit breaker and electrode for vacuum circuit breakerMEIDENSHA ELECTRIC MFG CO LTD·Filed 2015·Granted Feb 14, 2017·2 cites·4 claims
- 1380US6271966B1Optical head device including an optically anisotropic diffraction grating and process for its productionASAHI GLASS CO LTD·Filed 2000·Granted Aug 7, 2001·19 cites·2 claims
- 1478US6145133ASwimming gogglesTABATA CO LTD·Filed 2000·Granted Nov 14, 2000·30 cites·7 claims
- 1576US8279737B2Diffraction grating, aberration correction element and optical head deviceMIYASAKA KOJI·Filed 2011·Granted Oct 2, 2012·3 cites·22 claims
- 1676US6092895ALens frame assembly for a diving maskTABATA CO LTD·Filed 1999·Granted Jul 25, 2000·29 cites·8 claims
- 1775US8040782B2Wavelength-selective light-shielding element and optical head using the sameASAHI GLASS CO LTD·Filed 2009·Granted Oct 18, 2011·2 cites·11 claims
- 1875US7430076B2Diffraction elementASAHI GLASS CO LTD·Filed 2004·Granted Sep 30, 2008·14 cites·5 claims
- 1974US7623291B2Polarized diffractive filter and layered polarized diffractive filterASAHI GLASS CO LTD·Filed 2007·Granted Nov 24, 2009·4 cites·14 claims
- 2074US6917576B2Retarder and optical head device installing the sameASAHI GLASS CO LTD·Filed 2003·Granted Jul 12, 2005·8 cites·10 claims
- 2174US6118586AOptical head device including an optically anisotropic diffraction grating and production method thereofASAHI GLASS CO LTD·Filed 1996·Granted Sep 12, 2000·36 cites·7 claims
- 2273US7738346B2Polarizing diffraction element and optical head deviceASAHI GLASS CO LTD·Filed 2006·Granted Jun 15, 2010·6 cites·17 claims
- 2369US7755834B2Wavelength-selective diffraction element and optical head device incorporating the sameASAHI GLASS CO LTD·Filed 2008·Granted Jul 13, 2010·5 cites·18 claims
- 2469US7719657B2Liquid crystal lens element and optical head deviceASAHI GLASS CO LTD·Filed 2006·Granted May 18, 2010·3 cites·9 claims
- 2569US6304312B1Optical head, method of manufacturing the same, and diffraction element suitable thereforASAHI GLASS CO LTD·Filed 1997·Granted Oct 16, 2001·18 cites·16 claims
- 2663US8440112B2Electrode material for vacuum circuit breaker and method of manufacturing the sameNODA YASUSHI·Filed 2009·Granted May 14, 2013·0 cites·2 claims
- 2761US2008310024A1Diffraction elementASAHI GLASS CO LTD·Filed 2008·Application pending·0 cites
- 2860USD318476SDiver's maskTABATA CO LTD·Filed 1987·Granted Jul 23, 1991·8 cites·1 claims
- 2960US2022403097A1Fibers, fiber multilayer structure, spinning solution for electrospinning, and method for producing fibersSHINETSU CHEMICAL CO·Filed 2020·Application pending·0 cites
- 3059USD335365SDiver's maskTABATA CO LTD·Filed 1991·Granted May 4, 1993·9 cites·1 claims
- 3158US12264217B2Surface treatment film, manufacturing method therefor, and articleDAINICHISEIKA COLOR CHEM·Filed 2021·Granted Apr 1, 2025·0 cites·14 claims
- 3258US7134433B2Snorkel clipTABATA CO LTD·Filed 2003·Granted Nov 14, 2006·7 cites·6 claims
- 3357US7790191B2Cosmetic compositionDAINICHISEIKA COLOR CHEM·Filed 2004·Granted Sep 7, 2010·0 cites·21 claims
- 3455US7564504B2Phase plate and an optical data recording/reproducing deviceASAHI GLASS CO LTD·Filed 2005·Granted Jul 21, 2009·1 cites·10 claims
- 3555US6180028B1Liquid-crystal composition and polymeric liquid crystal obtained by polymerizing the sameASAHI GLASS CO LTD·Filed 1998·Granted Jan 30, 2001·14 cites·14 claims
- 3654US8437238B2Diffraction grating, aberration correction element and optical head deviceMIYASAKA KOJI·Filed 2012·Granted May 7, 2013·0 cites·20 claims
- 3754US8040781B2Wavelength selecting wavelength plate and optical head device using itASAHI GLASS CO LTD·Filed 2009·Granted Oct 18, 2011·0 cites·5 claims
- 3851US11174335B2Silicone-modified polyurethane fiber and method for manufacturing sameSHINETSU CHEMICAL CO·Filed 2017·Granted Nov 16, 2021·0 cites·12 claims
- 3950US2022169779A1Material for medical use and method for producing sameSHINETSU CHEMICAL CO·Filed 2020·Application pending·0 cites
- 4049US7334270B2Strap for diving face maskTABATA CO LTD·Filed 2006·Granted Feb 26, 2008·0 cites·14 claims
- 4148US2021115278A1Bio-based polyurethane resin, bio-based polyurethane resin solution, and printing inkDAINICHISEIKA COLOR CHEM·Filed 2018·Application pending·0 cites
- 4247US2021041656A1Optical element, optical system, and imaging deviceAGC INC·Filed 2020·Application pending·0 cites
- 4343US2018086874A1Silicone-modified polyurethane-based fiber and method for manufacturing sameSHINETSU CHEMICAL CO·Filed 2016·Application pending·0 cites
- 4441US2003123371A1Retarder and optical head device installing the sameASAHI GLASS CO LTD·Filed 2002·Application pending·0 cites
- 4540US2001030732A1Optical head, method of manufacturing the same and diffraction element suitable thereforASAHI GLASS CO LTD·Filed 2001·Application pending·0 cites
- 4639US2006033913A1Diffraction element and optical head deviceASAHI GLASS CO LTD·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →