Inventor · disambiguated record
Akihiko Maruyama
Also filed as: MARUYAMA AKIHIKO
43 granted patents·9 pending applications·695 citations·filing 1989–2025
98Inventor score
Files withSEIKO EPSON CORP30KYOWA HAKKO KOGYO KK4MITSUBISHI ELECTRIC CORP4NAT INST OF ADVANCED IND SCIEN4AGENCY IND SCIENCE TECHN3
Top patents by PatentIndex Score
52 records- 0187US7226767B2Process for producing cytidine diphosphate cholineKYOWA HAKKO FOOD SPECIALITIES·Filed 2002·Granted Jun 5, 2007·18 cites·1 claims
- 0286US7936549B2State grasp device, and switching control device of power switching apparatus employing the state grasp deviceMITSUBISHI ELECTRIC CORP·Filed 2005·Granted May 3, 2011·15 cites·28 claims
- 0385US7739058B2Condition-monitoring device and switch-control device provided with the sameMITSUBISHI ELECTRIC CORP·Filed 2006·Granted Jun 15, 2010·13 cites·7 claims
- 0485US5818058AParticle beam irradiation apparatusMITSUBISHI ELECTRIC CORP·Filed 1997·Granted Oct 6, 1998·244 cites·23 claims
- 0585US5113381AMultifunction electronic analog timepieceSEIKO EPSON CORP·Filed 1991·Granted May 12, 1992·63 cites·7 claims
- 0682US12285951B2Supply unit, liquid discharge device, and liquid containerSEIKO EPSON CORP·Filed 2023·Granted Apr 29, 2025·0 cites·8 claims
- 0782US9315033B2Recording apparatusSEIKO EPSON CORP·Filed 2015·Granted Apr 19, 2016·2 cites·4 claims
- 0882US7946694B2Liquid ejecting apparatusSEIKO EPSON CORP·Filed 2007·Granted May 24, 2011·6 cites·11 claims
- 0981US2025214345A1Supply unit, liquid discharge device, and liquid containerSEIKO EPSON CORP·Filed 2025·Application pending·0 cites
- 1077US8408257B2Liquid medicine dispensing deviceONO TSUYOSHI·Filed 2008·Granted Apr 2, 2013·17 cites·9 claims
- 1177US5289452AMultifunction electronic analog timepieceSEIKO EPSON CORP·Filed 1993·Granted Feb 22, 1994·38 cites·24 claims
- 1270US8958993B2Switching-device remaining lifetime diagnosis method and apparatusHORINOUCHI KATSUHIKO·Filed 2009·Granted Feb 17, 2015·6 cites·20 claims
- 1370US6352850B1Chitinase and method for preparing the sameAGENCY IND SCIENCE TECHN·Filed 2000·Granted Mar 5, 2002·2 cites·6 claims
- 1469US8040210B2Electromagnetically operated switching deviceMITSUBISHI ELECTRIC CORP·Filed 2007·Granted Oct 18, 2011·5 cites·4 claims
- 1569US6567345B1Clocking deviceSEIKO EPSON CORP·Filed 1999·Granted May 20, 2003·38 cites·41 claims
- 1665US6639874B2Pointer electronic timepiece, operating method and control program thereofSEIKO EPSON CORP·Filed 2001·Granted Oct 28, 2003·9 cites·35 claims
- 1765US6466518B1Time measurement deviceSEIKO EPSON CORP·Filed 1999·Granted Oct 15, 2002·30 cites·12 claims
- 1863US5016231AApparatus for electronically correcting an electronic timepieceSEIKO EPSON CORP·Filed 1989·Granted May 14, 1991·18 cites·5 claims
- 1962US11878534B2Supply unit and liquid ejection apparatusSEIKO EPSON CORP·Filed 2021·Granted Jan 23, 2024·0 cites·17 claims
- 2062US6350605B1Microorganisms, microbial symbionts, their culture methods, and methods for treating manganese-containing water using themMITA NAOKI·Filed 1999·Granted Feb 26, 2002·17 cites·7 claims
- 2161US12233652B2Tank unit and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2022·Granted Feb 25, 2025·0 cites·14 claims
- 2261US6387667B1Process for producing cytidine diphosphate cholineKYOWA HAKKO KOGYO KK·Filed 1993·Granted May 14, 2002·18 cites·9 claims
- 2359US5250425AProcess for producing ascorbic acid-2-phosphateKYOWA HAKKO KOGYO KK·Filed 1991·Granted Oct 5, 1993·7 cites·10 claims
- 2458US2006154292A1Novel 16SrRNA gene data and probes useful for detecting and quantitating microorganism from natural environmentNAT INST OF ADVANCED IND SCIEN·Filed 2006·Application pending·0 cites
- 2556US6370087B1Time measurement device and time measurement methodSEIKO EPSON CORP·Filed 1999·Granted Apr 9, 2002·21 cites·18 claims
- 2655US5744325AProcess for producing N-acetylglucosamine-6-phosphate deacetylaseAGENCY IND SCIENCE TECHN·Filed 1997·Granted Apr 28, 1998·11 cites·7 claims
- 2755US5578471AProcess for the preparation of ascorbic acid-2-phosphateKYOWA HAKKO KOGYO KK·Filed 1993·Granted Nov 26, 1996·6 cites·7 claims
- 2855US5339297ASwitching arrangement for applying battery voltage to circuitry block in an analog timepieceSEIKO EPSON CORP·Filed 1993·Granted Aug 16, 1994·16 cites·18 claims
- 2953US7364352B2Time measurement device and methodSEIKO EPSON CORP·Filed 2003·Granted Apr 29, 2008·2 cites·13 claims
- 3053US5042016AAnalog timepieceSEIKO EPSON CORP·Filed 1990·Granted Aug 20, 1991·14 cites·30 claims
- 3152US6724692B1Time measurement device and methodSEIKO EPSON CORP·Filed 1999·Granted Apr 20, 2004·15 cites·9 claims
- 3252US5214625ASetting mechanism for an analog timepieceSEIKO EPSON CORP·Filed 1992·Granted May 25, 1993·14 cites·19 claims
- 3352US5212079AProcess for the preparation of ascorbic acid-2-phosphateKYOWA HAKKO KOGYO KK·Filed 1991·Granted May 18, 1993·7 cites·8 claims
- 3451US9086063B2Pump apparatusSEIKO EPSON CORP·Filed 2013·Granted Jul 21, 2015·0 cites·5 claims
- 3551US8967767B2Liquid ejecting apparatusSEIKO EPSON CORP·Filed 2013·Granted Mar 3, 2015·0 cites·6 claims
- 3651US2006147976A1Method of detecting and quantitating microorganism having specific function and its gene from natural environment using novel 16SrRNA gene data or probesNAT INST OF ADVANCED IND SCIEN·Filed 2006·Application pending·0 cites
- 3750US2006245304A1Timepiece driving apparatus and time calculating apparatusSEIKO EPSON CORP·Filed 2006·Application pending·0 cites
- 3849US6912181B2Electronic timepiece with controlled date display updatingSEIKO EPSON CORPORATIOIN·Filed 2003·Granted Jun 28, 2005·3 cites·41 claims
- 3948US10363742B2Liquid ejecting apparatusSEIKO EPSON CORP·Filed 2017·Granted Jul 30, 2019·0 cites·11 claims
- 4048US2004179464A1Portable information deviceSEIKO EPSON CORP·Filed 2003·Application pending·0 cites
- 4147US2002150887A1Methods and nucleic acid probes for molecular genetic analysis of polluted environments and environmental samplesNAT INST OF ADVANCED IND SCIEN·Filed 2001·Application pending·0 cites
- 4247US2004233794A1Timepiece driving apparatus and time calculating apparatusSEIKO EPSON CORP·Filed 2004·Application pending·0 cites
- 4346US10363753B2Liquid ejecting apparatusesSEIKO EPSON CORP·Filed 2018·Granted Jul 30, 2019·0 cites·9 claims
- 4444US6664063B1Methods for separating,fractionating and analyzing gene of virus existing in hydrosphereNAT INST OF ADVANCED IND SCIEN·Filed 2000·Granted Dec 16, 2003·0 cites·15 claims
- 4544USRE38197EMultifunction electronic analog timepieceSEIKO EPSON CORP·Filed 1996·Granted Jul 22, 2003·9 cites·61 claims
- 4643US9315035B2Liquid container retaining unit and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2013·Granted Apr 19, 2016·0 cites·6 claims
- 4743US8172349B2Fluid discharge device, control method for a fluid discharge device, and a fluid tankMARUYAMA AKIHIKO·Filed 2009·Granted May 8, 2012·0 cites·17 claims
- 4843US2004233793A1Analog electronic timepieceFiled 2003·Application pending·0 cites
- 4941US6789968B2Printer having a selector associated with a carriage for actuating a plurality of switching mechanismsSEIKO EPSON CORP·Filed 2002·Granted Sep 14, 2004·1 cites·13 claims
- 5039US5731184AProcess for producing N-acetyl-D-glucosamine deacetylaseAGENCY IND SCIENCE TECHN·Filed 1996·Granted Mar 24, 1998·3 cites·1 claims
Showing the top 50 of 52 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →