Inventor · disambiguated record
Masaharu Fukakusa
Also filed as: FUKAKUSA MASAHARU
25 granted patents·13 pending applications·309 citations·filing 1990–2024
96Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD16PANASONIC IP MAN CO LTD10PANASONIC CORP4PANASONIC HOLDINGS CORP4FUKAKUSA MASAHARU2
Top patents by PatentIndex Score
38 records- 0189US6556533B1Optical pickup deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Apr 29, 2003·35 cites·28 claims
- 0289US5615203AFloating-type optical head having incorporated therein a floating slider and an optical device which floats with the slider, includes a light source, condensing unit and photodetector and is supported movably relative to the floating sliderMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Mar 25, 1997·40 cites·3 claims
- 0384US7889620B2Optical pickup device and optical disk devicePANASONIC CORP·Filed 2008·Granted Feb 15, 2011·8 cites·15 claims
- 0482US5761178AOptical integrating element and integration type optical pickup device using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Jun 2, 1998·32 cites·8 claims
- 0582US5687155AOptical integrating element and integration type optical pickup device using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Nov 11, 1997·32 cites·27 claims
- 0681US7738347B2Optical pickup device and optical disk drivePANASONIC CORP·Filed 2007·Granted Jun 15, 2010·6 cites·29 claims
- 0780US10514158B2Light source device and projection devicePANASONIC IP MAN CO LTD·Filed 2018·Granted Dec 24, 2019·3 cites·18 claims
- 0880US6266314B1Optical pickup deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Jul 24, 2001·33 cites·48 claims
- 0976US5184263ALoading method and drive unit for a floating magnetic head for loading the magnetic head while preventing contact between the magnetic head and a magnetic diskMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1990·Granted Feb 2, 1993·25 cites·5 claims
- 1073US6757224B2Integrated optical component and optical pick-up deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jun 29, 2004·9 cites·38 claims
- 1172US6256283B1Optical pickup having a common light beam path for passing either of a plurality of kinds of light beamsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Jul 3, 2001·23 cites·40 claims
- 1270US12481168B2Semiconductor laser device and method of controlling semiconductor laser devicePANASONIC HOLDINGS CORP·Filed 2023·Granted Nov 25, 2025·0 cites·10 claims
- 1366US8498189B2Optical pickup deviceFUKAKUSA MASAHARU·Filed 2012·Granted Jul 30, 2013·2 cites·2 claims
- 1466US7573800B2Optical pickup and optical disk apparatusPANASONIC CORP·Filed 2005·Granted Aug 11, 2009·2 cites·5 claims
- 1564US11047981B2Distance measurement devicePANASONIC IP MAN CO LTD·Filed 2018·Granted Jun 29, 2021·1 cites·19 claims
- 1664US5867468AOptical pickup with a vertically movable aperture meansMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Feb 2, 1999·17 cites·16 claims
- 1764US2023170666A1Semiconductor laser devicePANASONIC HOLDINGS CORP·Filed 2023·Application pending·0 cites
- 1864US2025012559A1Distance measuring devicePANASONIC IP MAN CO LTD·Filed 2024·Application pending·0 cites
- 1963US6654320B2Optical pickup apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Nov 25, 2003·5 cites·25 claims
- 2063US2024378740A1Distance measuring devicePANASONIC IP MAN CO LTD·Filed 2024·Application pending·0 cites
- 2162US5315454ALoading method of magnetic head and magnetic disc apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted May 24, 1994·14 cites·24 claims
- 2258US5812518AFloating-type optical head having incorporated therein a floating slider and an optical device which floats with the slider, includes a condensing unit and is supported movably relative to the floating sliderMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Sep 22, 1998·11 cites·3 claims
- 2358US5255135AMethod of loading slider and magnetic disk apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Oct 19, 1993·11 cites·8 claims
- 2456US11035986B2Light source device and projectorPANASONIC IP MAN CO LTD·Filed 2019·Granted Jun 15, 2021·0 cites·21 claims
- 2556US2023108080A1Semiconductor laser devicePANASONIC HOLDINGS CORP·Filed 2021·Application pending·0 cites
- 2654US8208360B2Optical pickup device and optical disk driver using the sameFUKAKUSA MASAHARU·Filed 2009·Granted Jun 26, 2012·0 cites·5 claims
- 2754US2023134268A1Laser light source device and laser processing apparatusPANASONIC HOLDINGS CORP·Filed 2022·Application pending·0 cites
- 2853US10749311B2Light source device and projection devicePANASONIC IP MAN CO LTD·Filed 2018·Granted Aug 18, 2020·0 cites·10 claims
- 2952US2022149596A1Semiconductor laser devicePANASONIC CORP·Filed 2020·Application pending·0 cites
- 3045US8270265B2Optical pickup device and optical disk deviceYOSHINAKA HIDEKI·Filed 2008·Granted Sep 18, 2012·0 cites·3 claims
- 3144US2024362809A1Image processing device and image processing methodPANASONIC IP MAN CO LTD·Filed 2024·Application pending·0 cites
- 3243US7355954B2Laser module, optical pickup device, optical disk device, focus error detection method and tracking error detection methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Apr 8, 2008·0 cites·28 claims
- 3343US2018342629A1Wavelength conversion element and light source devicePANASONIC IP MAN CO LTD·Filed 2018·Application pending·0 cites
- 3443US2018363860A1Light source devicePANASONIC IP MAN CO LTD·Filed 2018·Application pending·0 cites
- 3542US2006081761A1Optical pickup apparatus and optical disk apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Application pending·0 cites
- 3640US2018375001A1Light source device and projection devicePANASONIC IP MAN CO LTD·Filed 2018·Application pending·0 cites
- 3737US2003185137A1Optical pick-up apparatus and optical disc unit thereforFiled 2003·Application pending·0 cites
- 3837US2006269197A1Bidirectional optical module and light transmitting apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →