Inventor · disambiguated record
Kazuyuki Hayashi
Also filed as: HAYASHI KAZUYUKI
132 granted patents·39 pending applications·1,240 citations·filing 1976–2025
99Inventor score
Top patents by PatentIndex Score
171 records- 0195US7906259B2Reflective mask blank for EUV lithographyASAHI GLASS CO LTD·Filed 2008·Granted Mar 15, 2011·27 cites·28 claims
- 0294US9618836B2Reflective mask blank for EUV lithography, substrate with funtion film for the mask blank, and methods for their productionASAHI GLASS CO LTD·Filed 2015·Granted Apr 11, 2017·6 cites·22 claims
- 0394US9239515B2Reflective mask blank for EUV lithographyASAHI GLASS CO LTD·Filed 2014·Granted Jan 19, 2016·10 cites·21 claims
- 0494US8137872B2Reflective mask blank for EUV lithographyHAYASHI KAZUYUKI·Filed 2010·Granted Mar 20, 2012·10 cites·20 claims
- 0593US9506094B2Method for producing L-amino acid using microorganism having increased phosphate transporter activityAJINOMOTO KK·Filed 2015·Granted Nov 29, 2016·7 cites·11 claims
- 0693US8288062B2Reflective mask blank for EUV lithographyHAYASHI KAZUYUKI·Filed 2012·Granted Oct 16, 2012·9 cites·23 claims
- 0793US8029950B2Reflective mask blank for EUV lithographyASAHI GLASS CO LTD·Filed 2010·Granted Oct 4, 2011·13 cites·24 claims
- 0892US7718324B2Reflective mask blank for EUV lithographyASAHI GLASS CO LTD·Filed 2008·Granted May 18, 2010·16 cites·29 claims
- 0989US8227152B2Reflective mask blank for EUV lithographyHAYASHI KAZUYUKI·Filed 2011·Granted Jul 24, 2012·6 cites·32 claims
- 1089US8168352B2Reflective mask blank for EUV lithography and mask for EUV lithographyHAYASHI KAZUYUKI·Filed 2011·Granted May 1, 2012·9 cites·44 claims
- 1189US8133643B2Reflective mask blank for EUV lithographyHAYASHI KAZUYUKI·Filed 2011·Granted Mar 13, 2012·6 cites·37 claims
- 1289US7713666B2Reflective mask blank for EUV lithographyASAHI GLASS CO LTD·Filed 2008·Granted May 11, 2010·16 cites·32 claims
- 1388US7833682B2Reflective mask blank for EUV lithography and substrate with functional film for the sameASAHI GLASS CO LTD·Filed 2008·Granted Nov 16, 2010·15 cites·17 claims
- 1487US9897751B2Multicore polarization-maintaining fiberFUJIKURA LTD·Filed 2016·Granted Feb 20, 2018·6 cites·10 claims
- 1586US6350505B2High-density acicular hematite particles, non-magnetic undercoat layer and magnetic recording mediumTODA KOGYO CORP·Filed 2001·Granted Feb 26, 2002·16 cites·16 claims
- 1685US5686012AModified particlesTODA KOGYO CORP·Filed 1995·Granted Nov 11, 1997·51 cites·46 claims
- 1785US4876681APacket switching equipment and a packet switching method for controlling packet switched networksHITACHI LTD·Filed 1988·Granted Oct 24, 1989·89 cites·6 claims
- 1884US7855036B2Sputtering target used for production of reflective mask blank for EUV lithographyASAHI GLASS CO LTD·Filed 2009·Granted Dec 21, 2010·15 cites·9 claims
- 1984US7736821B2Reflective mask blank for EUV lithography and substrate with a conductive film for the mask blankASAHI GLASS CO LTD·Filed 2006·Granted Jun 15, 2010·10 cites·14 claims
- 2084US7022752B2Composite particles, process for producing the same, and pigment, paint and resin composition using the sameTODA KOGYO CORP·Filed 2001·Granted Apr 4, 2006·28 cites·58 claims
- 2183US8512987B2Method of producing L-amino acidNAGAI YURI·Filed 2009·Granted Aug 20, 2013·6 cites·13 claims
- 2283US4074232AData sending and receiving system for packet switching networkHITACHI LTD·Filed 1976·Granted Feb 14, 1978·56 cites·3 claims
- 2381US6130017ABlack non-magnetic composite particles for black toner and black toner using the sameTODA KOGYO CORP·Filed 1999·Granted Oct 10, 2000·30 cites·23 claims
- 2480US9207529B2Reflective mask blank for EUV lithography, and process for its productionASAHI GLASS CO LTD·Filed 2013·Granted Dec 8, 2015·4 cites·22 claims
- 2580US8873915B2Low-loss optical fiber over wide wavelength range and method of manufacturing the sameFUJIKURA LTD·Filed 2013·Granted Oct 28, 2014·3 cites·12 claims
- 2680US8208774B2Silica-based single core optical fiber, silica-based multi core optical fiber, and fabrication method for the sameKUDOU MANABU·Filed 2008·Granted Jun 26, 2012·5 cites·5 claims
- 2780US6800684B2Composite particles, and tread rubber composition, paint and resin composition using the sameTODA KOGYO CORP·Filed 2002·Granted Oct 5, 2004·24 cites·22 claims
- 2880US6544647B1Non-magnetic composite particles, process for producing the same and magnetic recording medium using the sameTODA KOGYO CORP·Filed 2000·Granted Apr 8, 2003·21 cites·13 claims
- 2980US6416864B1Black magnetic composite particles for a black magnetic tonerTODA KOGYO CORP·Filed 2000·Granted Jul 9, 2002·16 cites·16 claims
- 3078US7767034B2Soft magnetic material, powder magnetic core and method of manufacturing soft magnetic materialSUMITOMO ELECTRIC INDUSTRIES·Filed 2005·Granted Aug 3, 2010·4 cites·4 claims
- 3178US5750250AHematite particles and magnetic recording medium having a non-magnetic under-coat layer containing hematite (Fe2 O3) particles.TODA KOGYO CORP·Filed 1996·Granted May 12, 1998·29 cites·20 claims
- 3277US6638618B2Black composite iron oxide pigment, and paint and resin composition using the sameTODA KOGYO CORP·Filed 2001·Granted Oct 28, 2003·20 cites·12 claims
- 3377US6623557B2Colorant for ink-jet printing ink, ink-jet printing ink, aqueous pigment dispersion containing the colorant, and organic and inorganic composite particlesTODA KOGYO CORP·Filed 2002·Granted Sep 23, 2003·19 cites·22 claims
- 3477US6596071B2Organic and inorganic composite pigments, and paint and resin composition using the sameTODA KOGYO CORP·Filed 2002·Granted Jul 22, 2003·21 cites·11 claims
- 3577US5124207AMagnetic iron oxide particlesTODA KOGYO CORP·Filed 1990·Granted Jun 23, 1992·28 cites·8 claims
- 3675US6379855B1Black magnetic toner and black magnetic composite particles thereforTODA KOGYO CORP·Filed 2000·Granted Apr 30, 2002·16 cites·33 claims
- 3775US5236783ASuperparamagnetic fine particles of iron oxide and magnetic recording media containing said particlesTODA KOGYO CORP·Filed 1991·Granted Aug 17, 1993·20 cites·4 claims
- 3874US8003282B2Reflective mask blank for EUV lithography, and substrate with functional film for the mask blankASAHI GLASS CO LTD·Filed 2009·Granted Aug 23, 2011·4 cites·14 claims
- 3974US6042937ATitanium oxide particles, substrate for magnetic recording medium and magnetic recording medium using the sameTODA KOGYO CORP·Filed 1997·Granted Mar 28, 2000·21 cites·17 claims
- 4074US5368933ASuperparamagnetic fine particles of iron oxide and magnetic recording media containing said particlesTODA KOGYO CORP·Filed 1993·Granted Nov 29, 1994·27 cites·2 claims
- 4173US10745725B2Method for producing l-amino acid by increasing fructose uptakeAJINOMOTO KK·Filed 2018·Granted Aug 18, 2020·1 cites·18 claims
- 4273US8641274B2Polarization-maintaining fiber and optical fiber sensor using sameOMICHI KOJI·Filed 2011·Granted Feb 4, 2014·4 cites·3 claims
- 4373US6863966B1Black magnetic acicular composite particles for magnetic recording medium and magnetic recording medium using the sameTODA KOGYO CORP·Filed 2000·Granted Mar 8, 2005·9 cites·27 claims
- 4473US6440561B2Iron oxide hydroxide composite particles, pigment, paint and resin compositionTODA KOGYO CORP·Filed 2000·Granted Aug 27, 2002·11 cites·35 claims
- 4572US9932614B2Method for producing L-amino acid of glutamate familyAJINOMOTO KK·Filed 2016·Granted Apr 3, 2018·1 cites·17 claims
- 4672US9400352B2Polarization-maintaining optical fiberFUJIKURA LTD·Filed 2015·Granted Jul 26, 2016·2 cites·10 claims
- 4772US6511733B2Magnetic recording medium containing specific non-magnetic composite particles of coated hematite particlesTODA KOGYO CORP·Filed 2001·Granted Jan 28, 2003·9 cites·21 claims
- 4872US6420030B1Black iron-based composite particles, process for producing the same, paint and rubber or resin composition containing the sameTODA KOGYO CORP·Filed 2000·Granted Jul 16, 2002·10 cites·26 claims
- 4971US5372972AMethod of and an apparatus for processing a lead frameMITSUBISHI ELECTRIC CORP·Filed 1993·Granted Dec 13, 1994·52 cites·10 claims
- 5071US2024251833A1Method for improving flavor of foodAJINOMOTO KK·Filed 2024·Application pending·0 cites
Showing the top 50 of 171 patent records by PatentIndex Score.
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