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71. 发明专利

JPS5443763A LIQUID CRYSTAL DISPLAY MECHANISM 失效
公开(公告)号：JPS5443763A
公开(公告)日：1979-04-06
申请号：JP11076477
申请日：1977-09-13
申请人： SUWA SEIKOSHA KK
发明人： MOROZUMI SHINJI , YAMAZAKI YOSHIO , ASAKAWA TATSUJI , NAKASAKI YASUKI
IPC分类号： G09G3/18 , G01K7/00 , G02F1/13 , G02F1/133 , G09F9/00 , G09F9/30
摘要： PURPOSE:To improve the display performance and to simplify the electrode terminal shape by controlling the drive pulses such that the effective value corresponds to the variation in the temperature and a main voltage while leaving the wave heiht invaried. CONSTITUTION:A temperature detector 1 is equipped with a reference main power source composed of transistors 10 to 13 and 14 to 17 so as to generate a reference voltage VS1 having no temperature dependency, a main voltage and a reference voltage VS2 having reproducibility in accordance with the conductance ratio of transistors 14 and 15 by means of the transistors 10 and 11 having the same conductance. These voltage VS1 and VS2 are compared by an operational amplifier 37 and are fed to a drive control circuit 3 through a pulse width control circuit 2 which is composed of a shift resistor 41, a decoder and a gate circuit. Then, the duty cycle of the drive pulses is varied so as to generate the drive pulses having their effective value varied, while leaving the peak level constant, in accordance with the changes in the temperature and main voltage thereby to improve the liquid crystal display performance. According to the above construction, the circuit can be integrated moncyclically to simplify the electrode shape.

72. 发明专利

JPS5428560A DYNAMIC DIVIDING CIRCUIT 失效
公开(公告)号：JPS5428560A
公开(公告)日：1979-03-03
申请号：JP9395777
申请日：1977-08-05
申请人： SUWA SEIKOSHA KK
发明人： IWAMOTO MITSUMASA , ASAKAWA TATSUJI
IPC分类号： H03K3/353 , H03K3/354 , H03K3/72 , H03K21/38 , H03K23/00 , H03K23/52 , H03K23/54
摘要： PURPOSE:To ensure the dividing function of 1/odd-number through a dividing circuit by preventing the same potential under the inhibition state which is set forcedly.

73. 发明专利

JPS547370A ELECTRONIC WATCH WITH SOLAR BATTERIES 失效
公开(公告)号：JPS547370A
公开(公告)日：1979-01-20
申请号：JP7248177
申请日：1977-06-17
申请人： SUWA SEIKOSHA KK
发明人： MOROZUMI SHINJI , ASAKAWA TATSUJI
IPC分类号： H02J7/00 , G01R19/00 , G01R19/165 , G04C10/02 , G04C10/04 , H02J7/35
摘要： PURPOSE:To urge the wearer for charging and enable the adjustment of a set voltage to be readily performed by providing a secondary battery voltage detecting circuit and making a preliminary announcement for charging to a secondary battery.

74. 发明专利

JPS52129355A AMPLIFIER 失效
公开(公告)号：JPS52129355A
公开(公告)日：1977-10-29
申请号：JP4702276
申请日：1976-04-23
申请人： SUWA SEIKOSHA KK
发明人： ASAKAWA TATSUJI
IPC分类号： H03F3/345 , G06G7/12 , H03F3/34 , H03F3/45
摘要： PURPOSE:To obtain an operational amplifier which uses semi- or full-C'MOS structure and is ideal in terms of price, dependability, applicability and property.

75. 发明专利

JPS52114933A CONTROL CIRCUIT FOR CHARGING 失效
公开(公告)号：JPS52114933A
公开(公告)日：1977-09-27
申请号：JP3166976
申请日：1976-03-23
申请人： SUWA SEIKOSHA KK
发明人： ASAKAWA TATSUJI
IPC分类号： H02J7/00 , H02J7/10 , H02J7/35

76. 发明专利

JPS5228366A VOLTAGE DETECTION CIRCUIT 失效
公开(公告)号：JPS5228366A
公开(公告)日：1977-03-03
申请号：JP10433975
申请日：1975-08-28
申请人： SUWA SEIKOSHA KK , SHIMAUCHI SEIKI KK
发明人： KITANO MASUO , ASAKAWA TATSUJI
IPC分类号： G01R19/165 , A47L9/04 , G01R19/32 , G04C10/00
摘要： PURPOSE:Temperature characteristics in the same direction as voltage level converter are given to the C-inverter of voltage detection circuit composed of IGFET thereby providing outstanding temperature charateristics for electronic clocks to the circuit.

77. 发明专利

JPS6155195B2 失效
公开(公告)号：JPS6155195B2
公开(公告)日：1986-11-26
申请号：JP14980479
申请日：1979-11-19
申请人： SUWA SEIKOSHA KK
发明人： ASAKAWA TATSUJI
IPC分类号： G11C11/41 , G11C11/413

78. 发明专利

JPS6112391B2 JPS6112391B2 - 失效
公开(公告)号：JPS6112391B2
公开(公告)日：1986-04-08
申请号：JP4815276
申请日：1976-04-27
申请人： Suwa Seikosha Kk
发明人： ASAKAWA TATSUJI
IPC分类号： H03F3/345 , H01L21/8238 , H01L21/8247 , H01L27/092 , H01L29/788 , H01L29/792 , H03F3/34 , H03F3/347 , H03F3/45
CPC分类号： H01L27/092

79. 发明专利

JPS612918B2 JPS612918B2 - 失效
公开(公告)号：JPS612918B2
公开(公告)日：1986-01-28
申请号：JP8304980
申请日：1980-06-19
申请人： Suwa Seikosha Kk
发明人： TAKAGI MICHIAKI , ASAKAWA TATSUJI , MISAWA TOSHUKI
IPC分类号： G04G3/00 , G04C10/00 , G04G3/02 , H03B5/32 , H03L1/02
CPC分类号： G04G3/022

80. 发明专利

JPS5941203B2 JPS5941203B2 - 失效
公开(公告)号：JPS5941203B2
公开(公告)日：1984-10-05
申请号：JP12320876
申请日：1976-10-14
申请人： Suwa Seikosha Kk
发明人： ASAKAWA TATSUJI
IPC分类号： G01R19/165 , G01R19/00 , G05F1/56 , G05F3/24 , H01L29/78 , H02H3/02 , H02H7/20

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