Inventor · disambiguated record
Shinichi Ijima
Also filed as: IJIMA SHINICHI
19 granted patents·6 pending applications·170 citations·filing 2000–2020
94Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD15PANASONIC CORP4MATSUSHITA ELECTRONICS IND CO1MINAMIO MASANORI1NALUX CO LTD1
Top patents by PatentIndex Score
25 records- 0193US6728034B1Diffractive optical element that polarizes light and an optical pickup using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Apr 27, 2004·40 cites·15 claims
- 0290US7822090B2Semiconductor devicePANASONIC CORP·Filed 2008·Granted Oct 26, 2010·12 cites·17 claims
- 0390US6597642B1Photodetector unit, and optical pickup, optical reproduction apparatus, and optical recording apparatus equipped with the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jul 22, 2003·33 cites·40 claims
- 0485US8471373B2Resin-sealed semiconductor device and method for fabricating the sameMINAMIO MASANORI·Filed 2011·Granted Jun 25, 2013·8 cites·18 claims
- 0581US6501601B1Optical device with diffraction grating having plural grating regionsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Dec 31, 2002·12 cites·13 claims
- 0678US6510121B2Objective lens driving device including a damping member which has an opening on a main surface to allow an optical axis of a lens to pass through, and optical pickup using the object lens driving deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jan 21, 2003·12 cites·9 claims
- 0777US6665238B2Lens driving device, an optical pickup including the lens driving device, and a production method for the lens driving deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Dec 16, 2003·12 cites·23 claims
- 0868US7139235B2Optical element with diffraction grating, semiconductor device, and optical information recording device employing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Nov 21, 2006·7 cites·16 claims
- 0967US6728035B2Optical device with diffraction grating having plural grating regionsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Apr 27, 2004·8 cites·11 claims
- 1061US6614743B1Semiconductor laser deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Sep 2, 2003·5 cites·16 claims
- 1160US6473248B1Method for manufacturing an optical pickupMATSUSHITA ELECTRONICS IND CO·Filed 2000·Granted Oct 29, 2002·9 cites·11 claims
- 1258US6735024B2Optical pickup with improved optical propertiesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted May 11, 2004·7 cites·31 claims
- 1358US6587283B2Optical-component-integrated optical pickupMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jul 1, 2003·3 cites·10 claims
- 1453US2010103802A1Optical unit and electronic equipment using the samePANASONIC CORP·Filed 2009·Application pending·0 cites
- 1552US7014798B2Method for manufacturing an optical pickupMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Mar 21, 2006·2 cites·12 claims
- 1649US7970033B2Semiconductor device and electronic equipment using samePANASONIC CORP·Filed 2009·Granted Jun 28, 2011·0 cites·11 claims
- 1746US6947213B2Diffractive optical element that polarizes light and an optical pickup using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Sep 20, 2005·0 cites·9 claims
- 1845US7830773B2Optical pickup for recording and reproducing information with a plurality of types of optical information recording mediumsPANASONIC CORP·Filed 2005·Granted Nov 9, 2010·0 cites·13 claims
- 1944US2008304398A1Optical Head That Improves Read Signal CharacteristicsONOZAWA KAZUTOSHI·Filed 2005·Application pending·0 cites
- 2044US2003053211A1Optical deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Application pending·0 cites
- 2143US2006077859A1Optical pickupMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Application pending·0 cites
- 2243US2008159113A1Optical Pickup ApparatusNISHIMOTO MASAHIKO·Filed 2005·Application pending·0 cites
- 2342US7209427B2Optical pickup with reduced sizeNALUX CO LTD·Filed 2004·Granted Apr 24, 2007·0 cites·8 claims
- 2439US11171465B2Submount for semiconductor laser device on heat assisted recording devicePANASONIC IP MAN CO LTD·Filed 2020·Granted Nov 9, 2021·0 cites·20 claims
- 2538US2001048655A1Optical pick-up and information recording and reproducing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →