Inventor · disambiguated record
Akira Maruyama
Also filed as: MARUYAMA AKIRA
68 granted patents·15 pending applications·582 citations·filing 1981–2025
99Inventor score
Top patents by PatentIndex Score
83 records- 0189US11860338B2Optical filmFUJIFILM CORP·Filed 2022·Granted Jan 2, 2024·2 cites·20 claims
- 0287US10816073B2Strain wave gearingHARMONIC DRIVE SYSTEMS·Filed 2017·Granted Oct 27, 2020·3 cites·8 claims
- 0386US5352685AThieno[3,2-b]pyridine derivativesMITSUBISHI CHEM IND·Filed 1993·Granted Oct 4, 1994·60 cites·21 claims
- 0479US7156234B2Sorting technique for recycle of device unitsSEIKO EPSON CORP·Filed 2004·Granted Jan 2, 2007·17 cites·18 claims
- 0578US10403857B2Circularly polarizing plate and bendable display deviceFUJIFILM CORP·Filed 2017·Granted Sep 3, 2019·2 cites·11 claims
- 0675US6178121B1Semiconductor memory device, semiconductor device, and electronic apparatus using the semiconductor deviceSEIKO EPSON CORP·Filed 1998·Granted Jan 23, 2001·36 cites·16 claims
- 0772US5675588ATesting apparatus for transmission systemFUJITSU LTD·Filed 1995·Granted Oct 7, 1997·84 cites·12 claims
- 0870US5463587ANonvolatile semiconductor systemSEIKO EPSON CORP·Filed 1995·Granted Oct 31, 1995·30 cites·22 claims
- 0968US7111793B2Washer nozzle and washer apparatusASMO CO LTD·Filed 2003·Granted Sep 26, 2006·16 cites·22 claims
- 1067US7013101B2Cartridge recycling information apparatus, corresponding method, and cartridge to be recycledSEIKO EPSON CORP·Filed 2003·Granted Mar 14, 2006·9 cites·22 claims
- 1166US11592703B2Optical film comprising a stretched resin film and a liquid crystal layer including a polyfunctional compound having two or more polymerizable groups in one molecule, circularly polarizing plate, and image display apparatusFUJIFILM CORP·Filed 2022·Granted Feb 28, 2023·0 cites·20 claims
- 1266US5475249ANonvolatile semiconductor device to erase with a varying potential differenceSEIKO EPSON CORP·Filed 1993·Granted Dec 12, 1995·23 cites·20 claims
- 1364US6659261B2Ceramic shaped body-positioning systemNGK INSULATORS LTD·Filed 2001·Granted Dec 9, 2003·12 cites·13 claims
- 1463US11834600B2Liquid crystal composition, optical film, circularly polarizing plate for organic EL display, and method for producing optically anisotropic layerFUJIFILM CORP·Filed 2022·Granted Dec 5, 2023·0 cites·20 claims
- 1562US6862236B2Ferroelectric memory device with an equalization circuit connected between word voltage supply lines and bit voltage supply linesSEIKO EPSON CORP·Filed 2003·Granted Mar 1, 2005·11 cites·15 claims
- 1662US6671199B2Data storage method for semiconductor integrated circuit, semiconductor integrated circuit, semiconductor device equipped with many of the semiconductor integrated circuits, and electronic apparatus using the semiconductor deviceSEIKO EPSON CORP·Filed 2001·Granted Dec 30, 2003·12 cites·7 claims
- 1760US4764618AArginine derivatives and pharmaceutically acceptable acid addition salts thereofMITSUBISHI CHEM IND·Filed 1987·Granted Aug 16, 1988·5 cites·4 claims
- 1859US5654920ANonvolatile semiconductor storage systemSEIKO EPSON CORP·Filed 1996·Granted Aug 5, 1997·15 cites·4 claims
- 1958US12345907B2Optical laminate, laminated optical film, optical article, and virtual reality display deviceFUJIFILM CORP·Filed 2023·Granted Jul 1, 2025·0 cites·23 claims
- 2058US7408503B2Positioning system, positioning apparatus, positioning information providing apparatus, positioning method, control program for positioning system, and computer readable recording medium having recorded therein control program for positioning systemSEIKO EPSON CORP·Filed 2005·Granted Aug 5, 2008·4 cites·8 claims
- 2158US5808956ABus-line drive circuit and semiconductor storage device comprising the sameSEIKO EPSON CORP·Filed 1996·Granted Sep 15, 1998·17 cites·20 claims
- 2258US2025189788A1Laminate and virtual reality display deviceFUJIFILM CORP·Filed 2025·Application pending·0 cites
- 2357US10487498B2Flexible printed circuit board structure and indoor partition wallNIPPON DENGYO KOSAKU KK·Filed 2017·Granted Nov 26, 2019·1 cites·6 claims
- 2456US12391881B2Method for producing optically anisotropic layer, method for producing laminate, method for producing optically anisotropic layer with polarizer, method for producing laminate with polarizer, composition, and optically anisotropic layerFUJIFILM CORP·Filed 2022·Granted Aug 19, 2025·0 cites·20 claims
- 2555US6498743B2Method for supplying reference potential to sense amplifier circuit in semiconductor integrated circuit, semiconductor integrated circuit, semiconductor device equipped with many of the semiconductor integrated circuits, and electronic apparatus using the semiconductor deviceSEIKO EPSON CORP·Filed 2001·Granted Dec 24, 2002·8 cites·11 claims
- 2655US5432738ANonvolatile semiconductor storage systemSEIKO EPSON CORP·Filed 1994·Granted Jul 11, 1995·13 cites·8 claims
- 2754US11145969B2Structure, antenna structure, and radio wave shielding structure including transparent conductorNIPPON DENGYO KOSAKU KK·Filed 2017·Granted Oct 12, 2021·0 cites·10 claims
- 2853US7171131B2Image forming apparatus, image forming system, and computer-readable storage mediumSEIKO EPSON CORP·Filed 2004·Granted Jan 30, 2007·5 cites·21 claims
- 2953US6230517B1Absorption cooling apparatusPALOMA KOGYO KK·Filed 1999·Granted May 15, 2001·18 cites·4 claims
- 3053US5635972AResidual recording material amount detector for laser printerSEIKO EPSON CORP·Filed 1993·Granted Jun 3, 1997·11 cites·12 claims
- 3153US5574686ANonvolatile semiconductor storage systemSEIKO EPSON CORP·Filed 1995·Granted Nov 12, 1996·12 cites·10 claims
- 3252US4497878APhotomask materialKONISHIROKU PHOTO IND·Filed 1982·Granted Feb 5, 1985·10 cites·7 claims
- 3351US10459136B2Optical laminate, polarizing plate and organic EL display deviceFUJIFILM CORP·Filed 2017·Granted Oct 29, 2019·0 cites·14 claims
- 3451US2003158241A1Crystals of 5-[{6-(2-fluorobenzyl)oxy-2-naphthyl}methyl]-2,4-thiazolidinedioneFiled 2003·Application pending·0 cites
- 3551US2006149075A1Crystals of 5-[{6-(2-fluorobenzyl)oxy-2-naphthyl}methyl]-2,4-thiazolidinedioneOE TAKAYUKI·Filed 2006·Application pending·0 cites
- 3650US6972984B2Ferroelectric memory deviceSEIKO EPSON CORP·Filed 2003·Granted Dec 6, 2005·6 cites·14 claims
- 3749US10938085B2Antenna structureNIPPON DENGYO KOSAKU KK·Filed 2017·Granted Mar 2, 2021·0 cites·13 claims
- 3849US7092653B2Image forming apparatus and image forming systemSEIKO EPSON CORP·Filed 2004·Granted Aug 15, 2006·4 cites·31 claims
- 3949US5556851ACinnoline-3-carboxylic acid derivativesMITSUBISHI CHEM CORP·Filed 1994·Granted Sep 17, 1996·6 cites·2 claims
- 4049US5398204ANonvolatile semiconductor systemSEIKO EPSON CORP·Filed 1993·Granted Mar 14, 1995·12 cites·8 claims
- 4149US2009302008A1Spot Welding Method and Spot Welding SystemNACHI FUJIKOSHI CORP·Filed 2006·Application pending·0 cites
- 4247US11101555B2Structure, antenna structure, radio wave shielding structure, and touch panel including mesh-like transparent conductorNIPPON DENGYO KOSAKU KK·Filed 2018·Granted Aug 24, 2021·0 cites·9 claims
- 4347US2015126865A1Ultrasonic probe and ultrasonic measuring deviceSEIKO EPSON CORP·Filed 2014·Application pending·0 cites
- 4447US2005252539A1Vehicular washer nozzleASMO CO LTD·Filed 2005·Application pending·0 cites
- 4546US7302731B2Washer equipmentASMO CO LTD·Filed 2003·Granted Dec 4, 2007·4 cites·24 claims
- 4646US7023720B2Ferroelectric memory deviceSEIKO EPSON CORP·Filed 2003·Granted Apr 4, 2006·4 cites·12 claims
- 4746US2024286492A1Control system for vehicleMITSUBISHI MOTORS CORP·Filed 2022·Application pending·0 cites
- 4846US2006238785A1Color image forming apparatus, color image forming system, color image processing method and programSEIKO EPSON CORP·Filed 2006·Application pending·0 cites
- 4945US6411541B2Method for controlling re-writing operation for memory cell in semiconductor integrated circuit, semiconductor integrated circuit, semiconductor device equipped with many of the semiconductor integrated circuits, and electronic apparatus using the semiconductor deviceSEIKO EPSON CORP·Filed 2001·Granted Jun 25, 2002·4 cites·13 claims
- 5045US2013258481A1Antiglare film, method for producing the same, polarizing plate and image display deviceFUJIFILM CORP·Filed 2013·Application pending·0 cites
Showing the top 50 of 83 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →