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 111228
 
 
 
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 7951
 
 
 
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 756
 
 
 
B41J TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS 5848
 
 
 
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 3561
 
 
 
B23B TURNING; BORING 3418
 
 
 
G09G ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION 34112
 
 
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 33156

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
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]
2016/0222,892 IN-CYLINDER PRESSURE DETECTING APPARATUSMar 26, 15Aug 04, 16[F02M, F02D]
2016/0223,159 LIGHT-EMITTING APPARATUSDec 31, 15Aug 04, 16[F21V, H01L]
2016/0214,179 BAR MATERIAL SUPPLYING DEVICE AND NUMERICAL CONTROL MACHINE TOOL HAVING THE SAMESep 08, 14Jul 28, 16[B23B]
2016/0216,695 ELECTRONIC TIMEPIECEAug 29, 14Jul 28, 16[G04C]
2016/0197,253 LED DEVICEJun 23, 14Jul 07, 16[H01L]
2016/0169,460 LIGHT EMITTING DEVICEDec 10, 15Jun 16, 16[F21K, F21V]
2016/0172,550 LIGHT EMITTING DEVICE AND METHOD OF MANUFACTURING LIGHT EMITTING DEVICEDec 10, 15Jun 16, 16[H01L]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9,423,600 Aberration correction optical unit and laser microscopeAug 16, 13Aug 23, 16[G02B, G02F]
D762490 Wrist watchMar 17, 15Aug 02, 16[1002]
D762491 Wrist watchMar 17, 15Aug 02, 16[1002]
D762492 Wrist watchMar 17, 15Aug 02, 16[1002]
D762126 Wrist watchMar 17, 15Jul 26, 16[1002]
D762182 Light-emitting diodeOct 06, 14Jul 26, 16[1303]
9,395,054 Light source and lighting device including the sameNov 25, 13Jul 19, 16[F21K, F21Y, F21V, H05B, H01L]
9,395,692 Hairspring material for mechanical timepiece and hairspring using the sameAug 29, 13Jul 19, 16[G04B, C22C, C21D, F16F]
9,396,362 Analog multiplier circuit, variable gain amplifier, detector circuit, and physical quantity sensorApr 25, 12Jul 19, 16[H03G, H03F, H03D, G01C, G06G]
D761902 PrinterAug 14, 14Jul 19, 16[1402]

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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]
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]
2012/0256,550 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]
7,801,315 Method and device for driving a directional speakerExpiredDec 17, 04Sep 21, 10[H04B]
2010/0157,587 LIGHT-EMITTING UNIT AND ELECTRONIC DEVICE USING THE SAMEABANDec 22, 09Jun 24, 10[F21V]
7,733,440 Liquid crystal display deviceExpiredMay 31, 07Jun 08, 10[G02F]

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