Inventor
EBIHARA HEIHACHIRO
JP41 patents
Patents
41 patentsUS6259492B1Jul 10, 2001
Electro-optical apparatus having antiferrodielectric liquid crystal panel with normalization to prevent white brightening
CITIZEN WATCH CO LTD77 citations95
US4149146AApr 10, 1979
Driver circuit for electrochromic display device
CITIZEN WATCH CO LTD47 citations93
US4117475ASep 26, 1978
Driver circuit for electrochromic display device
CITIZEN WATCH CO LTD37 citations93
US4001808AJan 4, 1977
Electronic device for monitoring power consumption of an electro-optical display
CITIZEN WATCH CO LTD48 citations93
US6154069ANov 28, 2000
Circuit for driving capacitive load
CITIZEN WATCH CO LTD34 citations92
US5841412ANov 24, 1998
Electrooptical display device
CITIZEN WATCH CO LTD24 citations92
US5828354AOct 27, 1998
Electrooptical display device
CITIZEN WATCH CO LTD27 citations92
US5583528ADec 10, 1996
Electrooptical display device
CITIZEN WATCH CO LTD39 citations92
US6232942B1May 15, 2001
Liquid crystal display device
CITIZEN WATCH CO LTD17 citations83
US4266278AMay 5, 1981
Portable electronic device equipped with calculation and timekeeping functions
CITIZEN WATCH CO LTD18 citations74
US4255723AMar 10, 1981
Amplitude control inverter circuit for electronic device
CITIZEN WATCH CO LTD12 citations74
US4240150ADec 16, 1980
Portable timepiece calculator with power savings feature
CITIZEN WATCH CO LTD11 citations74
US4229668AOct 21, 1980
Transistor circuit having a plurality of CMOS circuits
CITIZEN WATCH CO LTD18 citations74
US4224531ASep 23, 1980
Data transfer circuit
CITIZEN WATCH CO LTD12 citations74
US4198579AApr 15, 1980
Input circuit for portable electronic devices
CITIZEN WATCH CO LTD12 citations74
US4196404AApr 1, 1980
Crystal oscillator having low power consumption
CITIZEN WATCH CO LTD12 citations74
US4193255AMar 18, 1980
Electronic timepiece with calendar function
CITIZEN WATCH CO LTD18 citations74
US4164842AAug 21, 1979
Buffer amplifier circuit
CITIZEN WATCH CO LTD16 citations74
US4157588AJun 5, 1979
Miniature type electronic device
CITIZEN WATCH CO LTD18 citations74
US4148015AApr 3, 1979
Electronic timepiece with an electrochromic display
CITIZEN WATCH CO LTD18 citations74
US4074256AFeb 14, 1978
Driver circuit for driving electrochromic display device
CITIZEN WATCH CO LTD13 citations74
US5886755AMar 23, 1999
Liquid crystal display device
CITIZEN WATCH CO LTD16 citations73
US4237420ADec 2, 1980
Temperature sensing circuit
CITIZEN WATCH CO LTD15 citations72
US4087958AMay 9, 1978
Timepiece apparatus
CITIZEN WATCH CO LTD17 citations72
US5006933AApr 9, 1991
Liquid crystal television
CITIZEN WATCH CO LTD5 citations63
US4589097AMay 13, 1986
Non-volatile memory circuit having a common write and erase terminal
CITIZEN WATCH CO LTD5 citations63
US4487099ADec 11, 1984
Electro-acoustic transducer drive circuit for producing damped waveform envelope musical notes
CITIZEN WATCH CO LTD3 citations63
US4250571AFeb 10, 1981
Portable electronic device
CITIZEN WATCH CO LTD4 citations63
US4217654AAug 12, 1980
Portable electronic device equipped with timekeeping and calculation functions
CITIZEN WATCH CO LTD5 citations63
US4208866AJun 24, 1980
Electronic timepiece equipped with alarm
CITIZEN WATCH CO LTD2 citations63
US4190892AFeb 26, 1980
Zero suppressing system for electronic device
CITIZEN WATCH CO LTD3 citations63
US4142362AMar 6, 1979
Digital display timepiece
CITIZEN WATCH CO LTD4 citations63
US4030338AJun 21, 1977
Timepiece testing apparatus
CITIZEN WATCH CO LTD5 citations63
US4011002AMar 8, 1977
Electronic device for detecting the energized state of a liquid crystal display cell
CITIZEN WATCH CO LTD6 citations63
US5945971AAug 31, 1999
Liquid crystal display device
CITIZEN WATCH CO LTD5 citations62
US4096412AJun 20, 1978
Driver circuit for electrochromic display device
CITIZEN WATCH CO LTD4 citations62
US4060974ADec 6, 1977
Method and apparatus for driving electrochromic display device
CITIZEN WATCH CO LTD4 citations61
US4258275AMar 24, 1981
Miniature electronic device
CITIZEN WATCH CO LTD1 citations52
US4192135AMar 11, 1980
Portable electronic device
CITIZEN WATCH CO LTD1 citations52
US4227192AOct 7, 1980
Drive system for liquid crystal display device
CITIZEN WATCH CO LTD0 citations42
US4006584AFeb 8, 1977
Electronic timepiece
CITIZEN WATCH CO LTD0 citations41