CITIZEN WATCH 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 113251
 
  
 
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 6475
 
  
 
1303 EQUIPMENT FOR DISTRIBUTION OR CONTROL OF ELECTRIC POWER6121
 
  
 
1002 WATCHES AND WRIST WATCHES592
 
  
 
B41J TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS 5254
 
  
 
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 4910
 
  
 
F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR 4565
 
  
 
G04C ELECTROMECHANICAL CLOCKS OR WATCHES 405
 
  
 
B23B TURNING; BORING 3918
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 36169

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0058,968 COMBUSTION PRESSURE SENSORMar 02, 16Mar 01, 18[G01L]
2018/0040,780 LIGHT-EMITTING DEVICE AND METHOD FOR PRODUCING THE SAMEFeb 12, 16Feb 08, 18[H01L]
2018/0026,552 ELECTROSTATIC INDUCTION GENERATORJan 05, 16Jan 25, 18[H02N]
2017/0357,222 SATELLITE RADIO-CONTROLLED WATCHDec 11, 15Dec 14, 17[G04R, H04B, G01S, G04G]
2017/0350,769 SURFACE ACOUSTIC WAVE DEVICEDec 24, 15Dec 07, 17[G01K, H01L, H03H]
2017/0322,538 NUMERICAL CONTROL DEVICENov 26, 14Nov 09, 17[G05B]
2017/0287,422 LIQUID CRYSTAL APPARATUSJun 22, 17Oct 05, 17[G09G]
2017/0290,111 LED DRIVER CIRCUITSep 11, 15Oct 05, 17[H05B]
2017/0236,982 LED MODULESep 29, 15Aug 17, 17[H01L, H05B]
2017/0227,932 ELECTRONIC WATCHSep 29, 15Aug 10, 17[H02P, G04C]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9920889 Lighting device including phosphor cover and method of manufacturing the sameOct 10, 14Mar 20, 18[F21V, H01L, F21Y, F21K]
9920910 Method for mounting light-emitting elementsNov 23, 12Mar 20, 18[F21V, H01L, H05K]
9922609 Liquid crystal apparatusJun 22, 17Mar 20, 18[G09G]
D812508 Dial trim ring for watchesMar 17, 17Mar 13, 18[1007]
D812509 Watch dialMar 17, 17Mar 13, 18[1007]
D812573 SwitchApr 20, 17Mar 13, 18[1303]
D812574 SwitchApr 20, 17Mar 13, 18[1303]
D812575 SwitchApr 20, 17Mar 13, 18[1303]
D811903 WatchcaseMar 17, 17Mar 06, 18[1002]
9902003 Machining device and machining methodJan 29, 15Feb 27, 18[B23F, B23C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0104,587 PUSH SWITCHAbandonedOct 07, 15Apr 14, 16[H01H]
2015/0155,460 LIGHT-EMITTING APPARATUSAbandonedNov 25, 14Jun 04, 15[H01L]
2015/0019,002 MACHINE TOOLAbandonedFeb 05, 13Jan 15, 15[G05B]
2014/0127,665 LEARNING APPARATUSAbandonedJun 25, 12May 08, 14[G09B]
8666205 Optical deviceExpiredNov 24, 10Mar 04, 14[G02B]
8655436 Heart rate meter and heart beat detecting methodExpiredSep 05, 06Feb 18, 14[A61B]
8646959 Laser light sourceExpiredJan 26, 11Feb 11, 14[F21V]
8629822 Field sequential color display device with red, green, blue and white light sourcesExpiredJun 13, 07Jan 14, 14[G09G, G02F]
8517952 Blood pressure monitorExpiredMar 24, 08Aug 27, 13[A61B]
8482587 Portable printerExpiredJul 22, 11Jul 09, 13[B41J]
8482771 Printing apparatusExpiredOct 17, 08Jul 09, 13[G06F, G06K]
7637657 Electronic thermometerExpiredMar 14, 06Dec 29, 09[G01K]
7639096 Oscillator device and method for manufacturing the deviceExpiredFeb 23, 05Dec 29, 09[H03B]
7637159 Vibration gyro and the process of producing the sameExpiredMar 12, 07Dec 29, 09[H01L, G01P]
7628040 Method for joining an optical fiber and an optical lensExpiredSep 23, 04Dec 08, 09[C03B, G02B]
7616225 Exposure system and production method for exposure systemExpiredOct 10, 03Nov 10, 09[B41J]
7583335 Liquid crystal display deviceExpiredJan 23, 03Sep 01, 09[G02F]
7583382 Optical measurement apparatusExpiredMar 29, 05Sep 01, 09[G01N, C02F]
7583942 Tuning device and radio-wave corrected timepieceExpiredMay 20, 04Sep 01, 09[G04B, H04B]
7570388 Exposure deviceExpiredDec 08, 04Aug 04, 09[H04N, G06K]

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Top Inventors for This Owner

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