CITIZEN HOLDINGS CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
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 2718
 
 
 
1002 WATCHES AND WRIST WATCHES2611
 
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 21341
 
 
 
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 10123
 
 
 
B41J TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS 894
 
 
 
C23C COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 794
 
 
 
G04C ELECTROMECHANICAL CLOCKS OR WATCHES 712
 
 
 
G09G ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION 7144
 
 
 
B23B TURNING; BORING 547
 
 
 
A44C JEWELLERY; BRACELETS; OTHER PERSONAL ADORNMENTS; COINS 317

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0276,859 PLANAR LIGHT UNITJun 14, 17Sep 28, 17[F21V]
2017/0133,952 POWER GENERATION DEVICE AND PORTABLE ELECTRIC DEVICEMar 19, 15May 11, 17[F03G, H02N]
2017/0038,051 LIGHT-EMITTING APPARATUSAug 02, 16Feb 09, 17[F21V, H01L]
2017/0016,773 WIRELESS TEMPERATURE SENSORMar 04, 15Jan 19, 17[G01K]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9786826 LED light-emitting elementAug 02, 16Oct 10, 17[H01L]
D771282 Light sourceSep 02, 15Nov 08, 16[2604]
9293674 Light emitting device including light emitting element, outer connection electrodes and resin layerFeb 10, 14Mar 22, 16[H01L]
D737692 Wrist watch case with bandMar 26, 14Sep 01, 15[1002]
D720240 Wrist watchMar 26, 14Dec 30, 14[1002]
D717668 Wrist watchMar 26, 14Nov 18, 14[1002]
D717669 Wrist watch caseMar 26, 14Nov 18, 14[1002]
D717179 Wrist watchMar 26, 14Nov 11, 14[1002]
D694656 Wrist watch caseApr 10, 13Dec 03, 13[1002]
D690208 Wrist watch case with bandFeb 27, 13Sep 24, 13[1002]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
9291339 Lighting device including light-emitting elementWithdrawnAug 05, 15Mar 22, 16[F21K, F21Y, F21V, H05B, H01L]
9195114 Optical deviceWithdrawnMay 22, 12Nov 24, 15[G02B, G02F]
9175620 Internal combustion engine fitted with combustion pressure detection deviceWithdrawnMar 15, 13Nov 03, 15[F02B, F02D, G01L]
2015/0186,039 INFORMATION INPUT DEVICEABANAug 22, 13Jul 02, 15[G06F]
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]
8464618 Numerically controlled lathe with guide bush, and method of processing workpiece by using the numerically controlled latheExpiredMar 26, 08Jun 18, 13[B23Q, B23B]
8451530 Laser sourceExpiredOct 12, 10May 28, 13[H01S, G02F]
2013/0094,800 OPTICAL DEVICE AND METHOD FOR MANUFACTURING THE OPTICAL DEVICEABANOct 04, 12Apr 18, 13[G02B, B23K]
8367000 Cassette and measuring apparatusExpiredDec 21, 06Feb 05, 13[G01N]
8347469 Crystal oscillator piece and method for manufacturing the sameExpiredMar 26, 08Jan 08, 13[H04R, H01L]
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]
8258676 Crystal device and method for manufacturing crystal deviceExpiredMay 17, 10Sep 04, 12[H02N, H01L]
8223183 Image formation device and image formation methodExpiredSep 04, 07Jul 17, 12[G01D, B41J]
2012/0128,024 TEMPERATURE MEASURING DEVICEABANNov 22, 11May 24, 12[G01K]
8145348 Tool selection method for machine tool, control device, and numerically controlled latheExpiredSep 11, 08Mar 27, 12[G06F, G06K]
8130332 Liquid crystal optical modulation element, liquid crystal optical modulation device and method for driving liquid crystal optical modulation elementWithdrawnNov 12, 07Mar 06, 12[G02F]
2012/0045,619 SUBSTRATE PROVIDED WITH OPTICAL STRUCTURE AND OPTICAL ELEMENT USING THE SAMEABANAug 19, 11Feb 23, 12[G02B, G02F, B29D, B32B]

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