Inventor
Kazuhiko Yanagawa
Inventor
Mobara, JP
Overview
Patents· 150 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Fprimary
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein73%
G09GArrangements or circuits for control of indicating devices using static means to present variable information10%
A01GHorticulture3%
A47JKitchen equipment3%
H05KPrinted circuits3%
H10KOrganic electric solid-state devices3%
H10DInorganic electric semiconductor devices2%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%
G02BOptical elements, systems or apparatus1%
A63FCard, board, or roulette games1%
PatentTitleYear
10,823,992Liquid crystal display device202010,725,350Liquid crystal display device, display device and manufacturing method thereof202010,466,519Liquid crystal display device201910,330,989Liquid crystal display device, display device and manufacturing method thereof201910,018,859Liquid crystal display device20189,715,132'Liquid crystal display device'20179,488,880'Liquid crystal display device, display device and manufacturing method thereof'20169,213,204'Liquid crystal display device, display device and manufacturing method thereof'20159,097,922'Liquid crystal display device'20159,086,600'Liquid crystal display device, display device and manufacturing method thereof'20158,885,137'Liquid crystal display device'20148,760,609'Liquid crystal display device, display device and manufacturing method thereof'20148,704,988'In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions'20148,493,522'Liquid crystal display device, display device and manufacturing method thereof'20138,427,613'In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions'20138,363,196'Display device with covering layer on end surface of organic interlayer film'20138,358,394'Liquid crystal display'20138,310,641'Liquid crystal display device, display device and manufacturing method thereof'20128,300,035'Liquid crystal display device'20128,279,390'Display device with connector board on back of lower frame connecting to circuit board at back of lower substrate'20128,248,549'Liquid crystal display device, display device and manufacturing method thereof'20128,248,548'Liquid crystal display device, display device and manufacturing method thereof'20128,248,567'Display device with dummy signal line having a bend'20128,233,126'Liquid crystal display device with semiconductor layer of TFT and pixel electrode at different levels'20128,223,306'Display device'20128,203,661'Liquid crystal display device, display device and manufacturing method thereof'20128,154,698'In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions'20128,144,297'Display device'20128,045,123'Display device with peel-preventing pattern'20118,027,005'Liquid crystal display having a pixel region with a source electrode of at least a high-melting-point metal layer'20117,956,973'In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions'20117,952,673'Display device'20117,924,384'Display device'20117,911,574'Display device having a board for a connector for inputting of video data and a board for mounting a display control circuit and manufacturing method thereof'20117,872,696'Liquid crystal display device, display device and manufacturing method thereof'20117,834,959'Liquid crystal display device having a reflection layer constituted of an extension portion of a gate or drain signal line'20107,796,231'Liquid crystal display device with sealing material having spacer therein'20107,760,319'Active-matrix liquid crystal display'20107,751,020'Liquid crystal display device with two kinds of projected portions on a substrate'20107,738,069'Liquid crystal display device'20107,724,334'In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions'20107,684,005'Active matrix type liquid crystal display apparatus'20107,643,119'Liquid crystal display device having improved spacers'20107,639,324'Liquid crystal display device'20097,612,853'Active matrix liquid crystal display device'20097,605,876'Liquid crystal display device, display device and manufacturing method thereof'20097,586,578'Display device'20097,561,241'Display device with bundle of cables adhesive on the back of frame'20097,551,169'Liquid crystal display device'20097,542,121'Liquid crystal display device'20097,492,577'Display device convertible from two dimensional display to three dimensional display'20097,492,433'Display device having a board for mounting a connector for inputting of video data and a board for mounting a display control circuit and manufacturing method thereof'20097,453,541'Liquid crystal display having particular electrodes and a spacer'20087,453,540'Liquid crystal display device with particular electrodes'20087,446,824'Liquid crystal display device having control circuit for inserting an elimination signal of 20% or less of the appied maximum voltage in a video signal'20087,433,012'Active matrix type liquid crystal display apparatus'20087,423,701'Liquid crystal display device with two capacitive electrode layers in specific locations'20087,408,609'Active-matrix liquid crystal display'20087,388,643'Liquid crystal display device'20087,382,432'Liquid crystal display device'20087,365,725'Liquid crystal display device'20087,355,667'Liquid crystal display device and manufacturing method thereof'20087,352,427'Display device'20087,345,729'In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions'20087,307,673'Liquid crystal display device, image display device and manufacturing method thereof'20077,289,182'Active-matrix liquid crystal display'20077,274,415'Display device'20077,271,427'Liquid crystal display device, illumination device backlight unit'20077,253,857'Liquid crystal display device with field sequential light source and optical medium'20077,248,325'Liquid crystal display having particular electrodes and particular common line'20077,209,206'Liquid crystal display device'20077,209,211'Active matrix type liquid crystal display apparatus'20077,206,055'Liquid crystal display device'20077,167,228'Liquid crystal display device with two kinds of projected portions on a substrate'20077,164,402'Liquid crystal display device'20077,161,641'Device with upper conductive element, lower conductive element, and insulating element'20077,158,202'In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions'20077,133,093'Liquid crystal display device having particular number of the light emitting elements in the backlight for the color display'20067,123,251'Image display device'20067,119,871'Liquid crystal display having insulating film overlapping and extending in direction of drain signal line'20067,119,776'Image display device'20067,106,408'Display device'20067,102,711'Active-matrix liquid crystal display'20067,098,981'Liquid crystal display device having particular electrode structure for repair of disconnected signal line'20067,095,470'In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions'20067,092,065'Image display device'20067,088,414'In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions'20067,084,948'Liquid crystal display device having counter electrode covering the plurality of drain signal lines'20067,079,212'In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions'20067,068,341'Liquid crystal display device'20067,064,734'Display device'20067,050,140'Liquid crystal display device with spacers formed on a planarizing film disposed over color filters'20067,046,324'In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions'20067,046,325'In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions'20067,030,953'Liquid crystal display with gate lines and an edge of the black matrix elongated parallel to an initial orientation direction'20067,030,941'Liquid crystal display device'20067,015,992'Color display device'20067,012,668'Method of measuring AC residual image in a liquid crystal display device'20066,995,818'Liquid crystal display device'20066,985,130'Display device including a distribution circuit disposed after a video signal generation circuit'20066,975,374'Lateral electric-field liquid crystal display device suitable for improvement of aperture ratio'20056,970,222'Liquid crystal display device, display device and manufacturing method thereof'20056,961,110'Display device'20056,956,636'Liquid crystal display device and manufacturing method thereof'20056,947,115'Liquid crystal display device'20056,927,816'Active-matrix liquid crystal display'20056,914,645'Liquid crystal display device'20056,897,930'Display device'20056,888,596'Liquid crystal display device'20056,831,724'Lateral electric-field liquid crystal display device suitable for improvement of aperture ratio'20046,801,287'Liquid crystal display device having tapered electrodes'20046,798,486'Liquid crystal display device with spacers formed on a planarizing film disposed over color filters'20046,795,150'Liquid crystal display device with V-shaped electrodes having different widths between electrodes'20046,784,964'Liquid crystal display device'20046,768,531'Liquid crystal display device'20046,734,945'Liquid crystal display device'20046,667,790'Liquid crystal display having particular spacer'20036,654,092'Active-matrix liquid crystal display'20036,642,988'Liquid crystal display device with columnar spacer'20036,621,538'Active matrix type liquid crystal display apparatus including liquid crystal layer having different thicknesses at portions where different colors of light are transmitted'20036,583,846'Liquid crystal display device with spacer covered with an electrode'20036,552,770'Liquid crystal display having shield layers on both sides of spacer across signal line'20036,545,658'In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions'20036,538,713'Active matrix liquid crystal display comprising a plurality of electrodes and/or a black matrix having zigzag shaped edges along the long side of the pixel field'20036,532,053'Transverse electric field system liquid crystal display device suitable for improving aperture ratio'20036,462,799'Lateral electric-field liquid crystal display device suitable for improvement of aperture ratio'20026,456,350'Liquid crystal display'20026,417,906'Liquid crystal display device with wide viewing angle characteristics'20026,411,360'Inplane switching type liquid crystal display with alignment layer formed on columnar spacer directly'20026,266,117'Active-matrix liquid crystal display'20016,266,116'In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions'20016,201,590'Liquid crystal display device with double-layered structure for gate line and/or data line'20016,137,560'Active matrix type liquid crystal display apparatus with light source color compensation'20006,108,065'Parallel field liquid crystal display with counter electrodes connected to the scan lines'20006,108,066'In-plane field type liquid crystal display device comprising a structure which is prevented from charging with electricity'20006,100,955'In-plane field type liquid crystal display device with delta arrangement of three primary color pixels'20006,064,460'LCD with parallel field having counter electrode(s) at least equal to 1/2 width of video signal line'20006,049,369'Parallel-field TFT LCD having reference electrodes and a conductive layer'20006,034,757'In-plane field type liquid crystal display device comprising a structure which is prevented from charging electricity'20005,978,059'Liquid crystal display device with wide viewing angle characteristics'19995,956,111'Liquid crystal display device with parallel field having particular spacing and width'19995,929,958'Liquid crystal display device with wide viewing angle characteristics'19995,870,160'In-plane field type liquid crystal display device comprising a structure which is prevented from charging with electricity'19995,831,707'Active matrix type liquid crystal display apparatus'19985,781,261'Active matrix type LCD having light shield layers and counter electrodes made of the same material'19985,760,856'In-plane field type liquid crystal display device with light shielding pattern suitable for high aperture ratio'19985,760,857'In-plane field type liquid crystal display device with delta arrangement of three primary color pixels'19985,754,266'Liquid crystal display device with wide viewing angle characteristics'19985,734,451'Active matrix type liquid crystal display device with specific configurations of the reference electrode and/or the video signal line'19985,694,186'Color liquid crystal display device having special relationship between its isochromatic viewing angle and half-brightness angle'1997Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1997–2011Patents assigned to HITACHI LTD (98)· patent assignee history
1997–2020Based in Mobara, JP· patent location history
2000Based in Chiba, JP· patent location history
2004–2008Based in Tokyo, JP· patent location history
2005–2013Patents assigned to HITACHI DISPLAYS LTD (38)· patent assignee history
2012–2020Patents assigned to PANASONIC LIQUID CRYSTAL DISPL (28)· patent assignee history
2012–2014Patents assigned to YANAGAWA KAZUHIKO (17)· patent assignee history
2014–2020Patents assigned to JAPAN DISPLAY INC (13)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 98 | 1997–2011 |
| HITACHI DISPLAYS LTD | 38 | 2005–2013 |
| PANASONIC LIQUID CRYSTAL DISPL | 28 | 2012–2020 |
| YANAGAWA KAZUHIKOself | 17 | 2012–2014 |
| JAPAN DISPLAY INC | 13 | 2014–2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| Mobara, JP | 145 | 1997–2020 |
| Tokyo, JP | 4 | 2004–2008 |
| Chiba, JP | 1 | 2000 |