CITIZEN HOLDINGS CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 114223
 
 
 
G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS 8154
 
 
 
G04B MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME-PIECES USING THE POSITION OF THE SUN, MOON, OR STARS 748
 
 
 
B41J TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS 5847
 
 
 
1002 WATCHES AND WRIST WATCHES463
 
 
 
G04C ELECTROMECHANICAL CLOCKS OR WATCHES 453
 
 
 
F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR 3663
 
 
 
B23B TURNING; BORING 3420
 
 
 
G09G ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION 34116
 
 
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 33160

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2016/0343,693 LIGHT-EMITTING APPARATUSMay 19, 16Nov 24, 16[H01L]
2016/0319,997 LIGHT-EMITTING DEVICE AND LIGHTING APPLIANCE INCLUDING THE LIGHT-EMITTING DEVICEApr 21, 16Nov 03, 16[F21K, F21V, H01L]
2016/0320,677 OPTICAL MIDULATORNov 20, 14Nov 03, 16[G02F]
2016/0282,834 START LIMITING DEVICE AND MACHINE TOOLMar 13, 14Sep 29, 16[G05B]
2016/0265,727 LED LAMPAug 15, 14Sep 15, 16[F21K, F21V]
2016/0266,567 NUMERICAL CONTROL DEVICEApr 23, 14Sep 15, 16[G05B, B23Q]
2016/0260,880 LIGHT-EMITTING DEVICE USING MOUNTING SUBSTRATEMay 16, 16Sep 08, 16[H01L]
2016/0243,860 PRINTERMay 02, 16Aug 25, 16[B41J]
2016/0243,865 PRINTERMay 02, 16Aug 25, 16[B41J]
2016/0245,497 LIGHT-EMITTING DEVICEDec 14, 15Aug 25, 16[F21V]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9,505,575 Near-end of roll detecting apparatus for detecting near-end of roll of recording medium, and printerApr 14, 10Nov 29, 16[B41J, B65H]
9,508,910 LED moduleDec 20, 12Nov 29, 16[H05B, H01L]
9,510,407 LED drive circuitOct 09, 15Nov 29, 16[H05B]
D773075 Light sourceSep 02, 15Nov 29, 16[2604]
D771579 Light emitting diodeNov 21, 14Nov 15, 16[1303]
9,490,398 Manufacturing method of light emitting device in a flip-chip configuration with reduced package sizeNov 25, 13Nov 08, 16[H01L]
D771282 Light sourceSep 02, 15Nov 08, 16[2604]
9,481,183 PrinterJan 14, 15Nov 01, 16[B41J]
9,484,509 Lighting device and method of manufacturing the sameSep 29, 15Nov 01, 16[H01L]
9,485,830 LED lighting apparatusJul 12, 12Nov 01, 16[H05B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
9,195,114 Optical deviceWithdrawnMay 22, 12Nov 24, 15[G02B, G02F]
9,175,620 Internal combustion engine fitted with combustion pressure detection deviceWithdrawnMar 15, 13Nov 03, 15[F02B, F02D, G01L]
2015/0168,632 PLANAR LIGHTING DEVICE AND DISPLAY DEVICE INCLUDING PLANAR LIGHTING DEVICEABANJun 12, 13Jun 18, 15[F21V]
2014/0348,463 OPTICAL DEVICE AND METHOD FOR MANUFACUTURING THE OPTICAL DEVICEABANAug 12, 14Nov 27, 14[G02B]
2013/0256,201 WORKPIECE SEPARATION APPARATUSABANDec 13, 11Oct 03, 13[B03B]
2013/0094,800 OPTICAL DEVICE AND METHOD FOR MANUFACTURING THE OPTICAL DEVICEABANOct 04, 12Apr 18, 13[G02B, B23K]
2012/0328,237 OPTICAL DEVICE AND METHOD FOR MANUFACTURING OPTICAL DEVICEABANJun 21, 12Dec 27, 12[G02B, B23K, B32B]
2012/0256,550 LED DRIVING CIRCUITABANNov 24, 10Oct 11, 12[H05B]
2012/0128,024 TEMPERATURE MEASURING DEVICEABANNov 22, 11May 24, 12[G01K]
8,145,348 Tool selection method for machine tool, control device, and numerically controlled latheExpiredSep 11, 08Mar 27, 12[G06F, G06K]
8,130,332 Liquid crystal optical modulation element, liquid crystal optical modulation device and method for driving liquid crystal optical modulation elementWithdrawnNov 12, 07Mar 06, 12[G02F]
2011/0267,570 ELECTRO-OPTICAL DEVICEABANFeb 26, 09Nov 03, 11[G02F]
8,049,840 Double-sided display apparatusExpiredAug 17, 05Nov 01, 11[G02F]
2011/0261,394 PRINTER STANDABANJan 14, 11Oct 27, 11[G06F, H05K]
7,924,301 Image forming apparatus for disk-shaped mediaExpiredMar 28, 07Apr 12, 11[B41J]
7,884,789 Display apparatusExpiredAug 11, 05Feb 08, 11[G09G]
7,875,870 Recording medium type identification device with optical sensorsExpiredMar 31, 08Jan 25, 11[H05K, G01N, G06K]
7,834,957 Display device employing light control member and display device manufacturing methodExpiredApr 30, 07Nov 16, 10[G02F]
2010/0255,338 DECORATIVE PARTABANSep 18, 08Oct 07, 10[B32B]
2010/0247,215 NEAR-END OF ROLL DETECTING APPARATUS FOR DETECTING NEAR-END OF ROLL OF RECORDING MEDIUM, AND PRINTERABANMar 12, 10Sep 30, 10[B41J, B65H]

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