Inventor · disambiguated record
Katsuyuki Fujita
Also filed as: FUJITA KATSUYUKI
57 granted patents·11 pending applications·1,114 citations·filing 1989–2020
99Inventor score
Top patents by PatentIndex Score
68 records- 0199US6567330B2Semiconductor memory deviceTOSHIBA KK·Filed 2002·Granted May 20, 2003·252 cites·22 claims
- 0298US9502140B2Semiconductor memory deviceFUJITA KATSUYUKI·Filed 2015·Granted Nov 22, 2016·49 cites·16 claims
- 0398US7494537B2Thermochromic coloring color-memory composition and thermochromic coloring color-memory microcapsule pigment containing the samePILOT INK CO LTD·Filed 2005·Granted Feb 24, 2009·49 cites·8 claims
- 0497US8369129B2Semiconductor memory device with variable resistance elementTOSHIBA KK·Filed 2010·Granted Feb 5, 2013·38 cites·13 claims
- 0597US6494950B1Thermochromic microencapsulated pigmentsPILOT INK CO LTD·Filed 2000·Granted Dec 17, 2002·75 cites·5 claims
- 0697US6466511B2Semiconductor memory having double data rate transfer techniqueTOSHIBA KK·Filed 2001·Granted Oct 15, 2002·145 cites·17 claims
- 0795US7708913B2Thermochromic coloring color-memory composition and thermochromic coloring color-memory microcapsule pigment containing the samePILOT INK CO LTD·Filed 2008·Granted May 4, 2010·12 cites·1 claims
- 0893US8845799B2Reversibly thermochromic aqueous ink composition, and writing instrument and writing instrument set each utilizing sameFUJITA KATSUYUKI·Filed 2010·Granted Sep 30, 2014·8 cites·11 claims
- 0991US5688592AThermochromic laminate comprising light intercepting pigment and light stabilizerPILOT INK CO LTD·Filed 1995·Granted Nov 18, 1997·62 cites·9 claims
- 1089US7027334B2Semiconductor memory deviceTOSHIBA KK·Filed 2003·Granted Apr 11, 2006·48 cites·16 claims
- 1188US7335624B2Reversible thermochromic display articlePILOT INK CO LTD·Filed 2005·Granted Feb 26, 2008·9 cites·11 claims
- 1286US8529683B2Reversible thermal discoloration aqueous ink composition and writing implement using the same and writing implement setFUJITA KATSUYUKI·Filed 2009·Granted Sep 10, 2013·5 cites·14 claims
- 1385US7332109B2Thermally color-developing reversibly thermochromic pigmentPILOT INK CO LTD·Filed 2002·Granted Feb 19, 2008·19 cites·6 claims
- 1484US8947918B2Semiconductor memory deviceFUJITA KATSUYUKI·Filed 2013·Granted Feb 3, 2015·7 cites·13 claims
- 1582US9799385B2Resistance change memoryTOSHIBA MEMORY CORP·Filed 2015·Granted Oct 24, 2017·5 cites·16 claims
- 1682US8173052B2Writing implement with thermochromic coloring color-memory compositionFUJITA KATSUYUKI·Filed 2010·Granted May 8, 2012·2 cites·4 claims
- 1782US7859881B2Magnetic memory device and write/read method of the sameTOSHIBA KK·Filed 2007·Granted Dec 28, 2010·19 cites·20 claims
- 1882US5059388AProcess for manufacturing sintered bodiesSUMITOMO CEMENT CO·Filed 1989·Granted Oct 22, 1991·44 cites·26 claims
- 1981US9111624B2Semiconductor memory deviceFUJITA KATSUYUKI·Filed 2013·Granted Aug 18, 2015·5 cites·13 claims
- 2080US8233310B2Resistance-change memoryFUJITA KATSUYUKI·Filed 2010·Granted Jul 31, 2012·7 cites·18 claims
- 2180US7794631B2Thermochromic coloring color-memory composition and thermochromic coloring color-memory microcapsule pigment containing the samePILOT INK CO LTD·Filed 2004·Granted Sep 14, 2010·9 cites·7 claims
- 2280US6947318B1Magnetic random access memoryTOSHIBA KK·Filed 2003·Granted Sep 20, 2005·26 cites·15 claims
- 2380US5919404AReversible thermochromic compositionsPILOT INK CO LTD·Filed 1998·Granted Jul 6, 1999·43 cites·8 claims
- 2479USRE46920ESemiconductor memory device with variable resistance elementTOSHIBA MEMORY CORP·Filed 2015·Granted Jun 26, 2018·4 cites·27 claims
- 2578US5879438AMethod for improving light-fastness of reversible thermochromic compositions at the time of color extinguishmentPILOT INK CO LTD·Filed 1997·Granted Mar 9, 1999·28 cites·20 claims
- 2676US8282299B2Friction body, writing instrument and writing instrument setITO YOSHIHIRO·Filed 2007·Granted Oct 9, 2012·7 cites·7 claims
- 2776US7235511B2Exhaust gas purifying catalystMAZDA MOTOR·Filed 2004·Granted Jun 26, 2007·17 cites·5 claims
- 2875US9257167B2Resistance change memoryFUJITA KATSUYUKI·Filed 2014·Granted Feb 9, 2016·4 cites·17 claims
- 2975US6468088B1Solid having reversibly invisible/visible thermochromic construction enclosed thereinPILOT INK CO LTD·Filed 2000·Granted Oct 22, 2002·17 cites·10 claims
- 3074US10410706B2Resistance change type memoryTOSHIBA MEMORY CORP·Filed 2018·Granted Sep 10, 2019·3 cites·20 claims
- 3174US7277341B2Semiconductor memory deviceTOSHIBA KK·Filed 2006·Granted Oct 2, 2007·9 cites·18 claims
- 3271US7869274B2Semiconductor memory deviceTOSHIBA KK·Filed 2008·Granted Jan 11, 2011·7 cites·19 claims
- 3370US10269404B2Resistance change memoryTOSHIBA MEMORY CORP·Filed 2017·Granted Apr 23, 2019·2 cites·20 claims
- 3470US9887237B2Magnetic storage deviceTOSHIBA MEMORY CORP·Filed 2016·Granted Feb 6, 2018·3 cites·4 claims
- 3570US8498144B2Semiconductor storage deviceTAKAHASHI MASAHIRO·Filed 2011·Granted Jul 30, 2013·4 cites·19 claims
- 3669US10672433B2Semiconductor memory deviceTOSHIBA MEMORY CORP·Filed 2018·Granted Jun 2, 2020·2 cites·17 claims
- 3766US9747966B2Semiconductor memory device for sensing memory cell with variable resistanceTOSHIBA KK·Filed 2016·Granted Aug 29, 2017·2 cites·10 claims
- 3863US9025400B2Semiconductor storage deviceFUJITA KATSUYUKI·Filed 2012·Granted May 5, 2015·2 cites·14 claims
- 3962US6842362B2Magnetic random access memoryTOSHIBA KK·Filed 2003·Granted Jan 11, 2005·11 cites·14 claims
- 4059US7269084B2Semiconductor memory deviceTOSHIBA KK·Filed 2005·Granted Sep 11, 2007·4 cites·19 claims
- 4159US5873932AMethod for improving light-fastness of reversible thermochromic compositions at the time of color developmentPILOT INK CO LTD·Filed 1996·Granted Feb 23, 1999·16 cites·9 claims
- 4257US10783933B2Semiconductor memory deviceTOSHIBA MEMORY CORP·Filed 2020·Granted Sep 22, 2020·0 cites·20 claims
- 4356US7539069B2Semiconductor memory deviceTOSHIBA KK·Filed 2007·Granted May 26, 2009·3 cites·9 claims
- 4456US7480198B2Semiconductor memory device and driving method of semiconductor memory deviceTOSHIBA KK·Filed 2007·Granted Jan 20, 2009·3 cites·20 claims
- 4553USRE48178ESemiconductor memory deviceTOSHIBA MEMORY CORP·Filed 2018·Granted Aug 25, 2020·0 cites·34 claims
- 4651US2010098475A1Writing instrument and writing instrument setPILOT INK CO LTD·Filed 2007·Application pending·0 cites
- 4748US2015261602A1Resistance change memoryFUJITA KATSUYUKI·Filed 2014·Application pending·0 cites
- 4848US2008165558A1Semiconductor memory deviceTOSHIBA KK·Filed 2007·Application pending·0 cites
- 4947US9153308B2Magnetic random access memory deviceFUJITA KATSUYUKI·Filed 2014·Granted Oct 6, 2015·0 cites·8 claims
- 5047US5858914AThermochromic coloring color-memory footwearPILOT INK CO LTD·Filed 1996·Granted Jan 12, 1999·26 cites·6 claims
Showing the top 50 of 68 patent records by PatentIndex Score.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →