Inventor · disambiguated record
Katsu Yamada
Also filed as: YAMADA KATSU
40 granted patents·5 pending applications·204 citations·filing 1993–2025
97Inventor score
Files withPANASONIC IP MAN CO LTD14MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11PANASONIC CORP10MIYAZAKI KYOICHI5KUZUHARA SATOSHI2
Top patents by PatentIndex Score
45 records- 0184US7593166B2Zoom lens system, imaging device and cameraPANASONIC CORP·Filed 2008·Granted Sep 22, 2009·10 cites·46 claims
- 0283US7126760B2Image stabilizing zoom lensMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Oct 24, 2006·24 cites·12 claims
- 0382US8212913B2Zoom lens system, imaging device and cameraYOSHITSUGU KEIKI·Filed 2008·Granted Jul 3, 2012·11 cites·4 claims
- 0474US7139130B2Zoom lens, and optical apparatus using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Nov 21, 2006·15 cites·17 claims
- 0574US2025138290A1Optical system, image projection apparatus, and imaging apparatusPANASONIC IP MAN CO LTD·Filed 2025·Application pending·0 cites
- 0673US7336419B2Zoom lens, still image camera comprising the zoom lens, and video camera comprising the zoom lensMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Feb 26, 2008·5 cites·26 claims
- 0772US8243170B2Zoom lens system, interchangeable lens apparatus and camera systemMIYAZAKI KYOICHI·Filed 2009·Granted Aug 14, 2012·6 cites·8 claims
- 0871US8189074B2Zoom lens system, interchangeable lens apparatus and camera systemMIYAZAKI KYOICHI·Filed 2009·Granted May 29, 2012·5 cites·9 claims
- 0970US10928720B2Projection optical system, image projection device and image projection systemPANASONIC IP MAN CO LTD·Filed 2019·Granted Feb 23, 2021·1 cites·20 claims
- 1070US7742235B2Zoom lens system, imaging device and cameraPANASONIC CORP·Filed 2008·Granted Jun 22, 2010·4 cites·46 claims
- 1169US12270976B2Optical system, image projection apparatus, and imaging apparatusPANASONIC IP MAN CO LTD·Filed 2021·Granted Apr 8, 2025·0 cites·20 claims
- 1269US6999240B2Zoom lens and video camera using itMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Feb 14, 2006·14 cites·47 claims
- 1368US5814806ACode sheet representing multiple code information and method for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Sep 29, 1998·36 cites·28 claims
- 1466US8885265B2Zoom lens system, imaging device and cameraKUZUHARA SATOSHI·Filed 2011·Granted Nov 11, 2014·2 cites·15 claims
- 1564US7948684B2Zoom lens system, imaging device and cameraPANASONIC CORP·Filed 2009·Granted May 24, 2011·2 cites·43 claims
- 1663US8472123B2Zoom lens system, interchangeable lens apparatus and camera systemMIYAZAKI KYOICHI·Filed 2009·Granted Jun 25, 2013·3 cites·12 claims
- 1762US12481137B2Optical system, image projection apparatus, and imaging apparatusPANASONIC IP MAN CO LTD·Filed 2023·Granted Nov 25, 2025·0 cites·15 claims
- 1862US12422655B2Optical system, image projection apparatus, and imaging apparatusPANASONIC IP MAN CO LTD·Filed 2022·Granted Sep 23, 2025·0 cites·20 claims
- 1962US7161742B2Small zoom lens, and digital camera and video camera both having sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Jan 9, 2007·5 cites·13 claims
- 2062US5583698AAspherical zoom lensMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Dec 10, 1996·26 cites·4 claims
- 2160US5434709AWavelength-selective phase grating type optical low-pass filter comprising adhesive layer between transparent layersMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Jul 18, 1995·22 cites·8 claims
- 2259US8279529B2Zoom lens system, interchangeable lens apparatus and camera systemMIYAZAKI KYOICHI·Filed 2009·Granted Oct 2, 2012·2 cites·8 claims
- 2359US7755847B2Zoom lens system, imaging device and cameraPANASONIC CORP·Filed 2008·Granted Jul 13, 2010·2 cites·43 claims
- 2458US12504680B2Optical system, image projection apparatus, and imaging apparatusPANASONIC IP MAN CO LTD·Filed 2023·Granted Dec 23, 2025·0 cites·20 claims
- 2558US7800831B2Zoom lens system, imaging device and cameraPANASONIC CORP·Filed 2009·Granted Sep 21, 2010·1 cites·46 claims
- 2654US12379579B2Optical system, image projection apparatus, and imaging apparatusPANASONIC IP MAN CO LTD·Filed 2022·Granted Aug 5, 2025·0 cites·20 claims
- 2754US11187968B2Image projection devicePANASONIC IP MAN CO LTD·Filed 2020·Granted Nov 30, 2021·0 cites·16 claims
- 2854US8004585B2Zoom lens system, interchangeable lens apparatus and camera systemPANASONIC CORP·Filed 2009·Granted Aug 23, 2011·1 cites·8 claims
- 2952US6999241B2Zoom lens, and video camera and digital still camera using the zoom lensMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Feb 14, 2006·4 cites·18 claims
- 3051US11520126B2Projection lens system and image projection devicePANASONIC IP MAN CO LTD·Filed 2020·Granted Dec 6, 2022·0 cites·15 claims
- 3150US7948685B2Zoom lens system, imaging device and cameraPANASONIC CORP·Filed 2010·Granted May 24, 2011·0 cites·46 claims
- 3250US7586683B2Zoom lens, still image camera comprising the zoom lens, and video camera comprising the zoom lensPANASONIC CORP·Filed 2007·Granted Sep 8, 2009·0 cites·57 claims
- 3346US8098983B2Zoom lens system, interchangeable lens apparatus and camera systemMIYAZAKI KYOICHI·Filed 2009·Granted Jan 17, 2012·0 cites·9 claims
- 3445US11513325B2Projection lens system and image projection devicePANASONIC IP MAN CO LTD·Filed 2020·Granted Nov 29, 2022·0 cites·11 claims
- 3545US8432618B2Zoom lens system, imaging device and cameraYOSHITSUGU KEIKI·Filed 2008·Granted Apr 30, 2013·0 cites·4 claims
- 3645US2013300916A1Zoom lens system, imaging device and cameraPANASONIC CORP·Filed 2013·Application pending·0 cites
- 3744US10444612B2Projection optical system and image projection device for projecting an image light flux onto a projection surfacePANASONIC IP MAN CO LTD·Filed 2018·Granted Oct 15, 2019·0 cites·11 claims
- 3844US2022283412A1Optical system, image projection apparatus, and imaging apparatusPANASONIC IP MAN CO LTD·Filed 2022·Application pending·0 cites
- 3943US9927684B2Projection optical system and image projectorPANASONIC IP MAN CO LTD·Filed 2017·Granted Mar 27, 2018·0 cites·10 claims
- 4042US7701645B2Zoom lens system, imaging device and cameraPANASONIC CORP·Filed 2006·Granted Apr 20, 2010·0 cites·10 claims
- 4142US2018239118A1Projection optical system and image projection devicePANASONIC IP MAN CO LTD·Filed 2018·Application pending·0 cites
- 4240US9086579B2Zoom lens system, imaging device and cameraKUZUHARA SATOSHI·Filed 2011·Granted Jul 21, 2015·0 cites·16 claims
- 4340US2005270646A1Zoom lens and video camera comprising the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Application pending·0 cites
- 4439US8064144B2Zoom lens system, imaging device and cameraYAMADA KATSU·Filed 2008·Granted Nov 22, 2011·0 cites·3 claims
- 4532US5555132AWide-conversion lens and a zoom lens with itMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Sep 10, 1996·3 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →