CITIZEN ELECTRONICS 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 132234
 
  
 
1303 EQUIPMENT FOR DISTRIBUTION OR CONTROL OF ELECTRIC POWER9410
 
  
 
F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR 8337
 
  
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 4171
 
  
 
F21K LIGHT SOURCES NOT OTHERWISE PROVIDED FOR2815
 
  
 
H01J ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 24104
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 2371
 
  
 
C09K MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR2174
 
  
 
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 16117
 
  
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 10146

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0040,780 LIGHT-EMITTING DEVICE AND METHOD FOR PRODUCING THE SAMEFeb 12, 16Feb 08, 18[H01L]
2017/0290,111 LED DRIVER CIRCUITSep 11, 15Oct 05, 17[H05B]
2017/0236,982 LED MODULESep 29, 15Aug 17, 17[H01L, H05B]
2017/0179,357 LED LIGHTING APPARATUS AND METHOD FOR MANUFACTURING THE SAMEMar 02, 17Jun 22, 17[H01L]
2017/0169,966 COMPONENT, PUSH SWITCH INCLUDING COMPONENT, PUSH SWITCH, AND ELECTRONIC DEVICE INCLUDING PUSH SWITCHDec 12, 16Jun 15, 17[H01H]
2017/0086,265 LED ILLUMINATION DEVICEMar 17, 15Mar 23, 17[H05B]
2017/0038,051 LIGHT-EMITTING APPARATUSAug 02, 16Feb 09, 17[F21V, H01L]
2017/0005,033 SUBSTRATE, LIGHT-EMITTING DEVICE WITH SUBSTRATE, METHOD OF MANUFACTURING SUBSTRATE ASSEMBLY AND METHOD OF MANUFACTURING LIGHT-EMITTING DEVICE WITH SUBSTRATEJun 30, 16Jan 05, 17[H01L]
2016/0308,097 LIGHT-EMITTING DEVICE AND METHOD FOR DESIGNING LIGHT EMITTING DEVICEJun 24, 16Oct 20, 16[C09K, H01L]
2016/0260,880 LIGHT-EMITTING DEVICE USING MOUNTING SUBSTRATEMay 16, 16Sep 08, 16[H01L]

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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]
D812573 SwitchApr 20, 17Mar 13, 18[1303]
D812574 SwitchApr 20, 17Mar 13, 18[1303]
D812575 SwitchApr 20, 17Mar 13, 18[1303]
9893249 Light-emitting deviceDec 16, 16Feb 13, 18[H01L]
9887185 Packaging of LED chips and driver circuit on the same substrateOct 31, 16Feb 06, 18[H01L, H05B]
D809467 SwitchSep 16, 15Feb 06, 18[1303]
9882106 Semiconductor device and light-emitting apparatusJul 28, 16Jan 30, 18[H01L]
9882107 LED package with covered bonding wireJan 12, 17Jan 30, 18[H01L]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
9484388 Light-emitting device, method for designing light-emitting device, method for driving light-emitting device, illumination method, and method for manufacturing light-emitting deviceWithdrawnSep 04, 15Nov 01, 16[H01L, H05B]
9324922 Illumination method and light-emitting deviceWithdrawnMar 04, 14Apr 26, 16[H01L, H05B]
2016/0104,587 PUSH SWITCHAbandonedOct 07, 15Apr 14, 16[H01H]
9291339 Lighting device including light-emitting elementWithdrawnAug 05, 15Mar 22, 16[F21V, H01L, H05B, F21Y, F21K]
2015/0168,632 PLANAR LIGHTING DEVICE AND DISPLAY DEVICE INCLUDING PLANAR LIGHTING DEVICEAbandonedJun 12, 13Jun 18, 15[F21V]
2015/0155,460 LIGHT-EMITTING APPARATUSAbandonedNov 25, 14Jun 04, 15[H01L]
2012/0256,550 LED DRIVING CIRCUITAbandonedNov 24, 10Oct 11, 12[H05B]
8043983 Flame-retardant metal-coated clothExpiredJan 14, 05Oct 25, 11[B32B]
7988310 Sheet-shaped lightguide member, operation panel-lighting device and electronic deviceExpiredDec 11, 08Aug 02, 11[G01D]
2010/0266,786 LIGHTGUIDE PLATE, METHOD OF MANUFACTURING LIGHT GUIDE PLATE, AND BACKLIGHT UNIT WITH THE LIGHT GUIDE PLATEAbandonedJun 30, 10Oct 21, 10[B05D]
7791456 VibratorExpiredFeb 23, 07Sep 07, 10[H04B]
7787650 Electromagnetic exciterExpiredApr 14, 06Aug 31, 10[H04R]
7764804 Panel-typed loud speaker and an exciter thereforExpiredSep 01, 06Jul 27, 10[H04R]
2010/0157,587 LIGHT-EMITTING UNIT AND ELECTRONIC DEVICE USING THE SAMEAbandonedDec 22, 09Jun 24, 10[F21V]
7711131 Electric-acoustic transducer and electric-acoustic transducer/housing assemblyExpiredDec 27, 05May 04, 10[H04R]
7698793 Electret condenser microphone and method of producing the sameExpiredApr 25, 07Apr 20, 10[B23P, H04R, G11B, H01F, H01G, G01V, B32B]
7698808 Method of making surface-mount coil packagesExpiredJan 02, 08Apr 20, 10[H01F]
2010/0084,939 ELECTRIC MOTOR APPARATUSAbandonedSep 22, 09Apr 08, 10[H02K]
7692346 VibratorExpiredOct 22, 07Apr 06, 10[H02K, H04M]
7680294 Acoustic transducerExpiredFeb 02, 06Mar 16, 10[H04R]

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