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Kiyoshi Yoshikawa
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Chiba-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Battery state monitoring circuit and battery device
Patent number
9,099,874
Issue date
Aug 4, 2015
Seiko Instruments Inc.
Kiyoshi Yoshikawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Sensor circuit
Patent number
8,901,966
Issue date
Dec 2, 2014
Seiko Instruments Inc.
Kiyoshi Yoshikawa
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Voltage regulator
Patent number
8,872,490
Issue date
Oct 28, 2014
Seiko Instruments Inc.
Kiyoshi Yoshikawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Battery state monitoring circuit and battery device
Patent number
8,471,530
Issue date
Jun 25, 2013
Seiko Instruments Inc.
Kiyoshi Yoshikawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Battery protection IC and battery device
Patent number
8,405,359
Issue date
Mar 26, 2013
Seiko Instruments Inc.
Yoshihisa Tange
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Temperature sensor
Patent number
8,217,708
Issue date
Jul 10, 2012
Seiko Instruments Inc.
Kiyoshi Yoshikawa
G01 - MEASURING TESTING
Information
Patent Grant
Battery state monitoring circuit and battery apparatus
Patent number
8,058,845
Issue date
Nov 15, 2011
Seiko Instruments Inc.
Yoshihisa Tange
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Battery protection circuit and battery device
Patent number
7,990,669
Issue date
Aug 2, 2011
Seiko Instruments Inc.
Kiyoshi Yoshikawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Band gap reference voltage circuit
Patent number
7,990,130
Issue date
Aug 2, 2011
Seiko Instruments Inc.
Kiyoshi Yoshikawa
G05 - CONTROLLING REGULATING
Information
Patent Grant
Charge and discharge control circuit and rechargeable power supply...
Patent number
7,923,968
Issue date
Apr 12, 2011
Seiko Instruments Inc.
Kazuaki Sano
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power supply switching circuit
Patent number
7,800,433
Issue date
Sep 21, 2010
Seiko Instruments Inc.
Kiyoshi Yoshikawa
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Switched capacitor amplifier circuit and method for operating a swi...
Patent number
7,446,602
Issue date
Nov 4, 2008
Seiko Instruments Inc.
Kiyoshi Yoshikawa
H03 - BASIC ELECTRONIC CIRCUITRY
Patents Applications
last 30 patents
Information
Patent Application
SENSOR CIRCUIT
Publication number
20140225649
Publication date
Aug 14, 2014
SEIKO INSTRUMENTS INC.
Kiyoshi YOSHIKAWA
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
VOLTAGE REGULATOR
Publication number
20130249510
Publication date
Sep 26, 2013
SEIKO INSTRUMENTS INC.
Kiyoshi YOSHIKAWA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
TEMPERATURE SENSOR
Publication number
20100123510
Publication date
May 20, 2010
Kiyoshi Yoshikawa
G01 - MEASURING TESTING
Information
Patent Application
BAND GAP REFERENCE VOLTAGE CIRCUIT
Publication number
20100072972
Publication date
Mar 25, 2010
Kiyoshi Yoshikawa
G05 - CONTROLLING REGULATING
Information
Patent Application
BATTERY PROTECTION IC AND BATTERY DEVICE
Publication number
20100060084
Publication date
Mar 11, 2010
SEIKO INSTRUMENTS INC.
Yoshihisa Tange
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
BATTERY PROTECTION CIRCUIT AND BATTERY DEVICE
Publication number
20090213511
Publication date
Aug 27, 2009
Kiyoshi Yoshikawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
OVERHEAT PROTECTION CIRCUIT
Publication number
20090185323
Publication date
Jul 23, 2009
Kiyoshi Yoshikawa
G01 - MEASURING TESTING
Information
Patent Application
POWER SUPPLY SWITCHING CIRCUIT
Publication number
20090167410
Publication date
Jul 2, 2009
Kiyoshi Yoshikawa
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Charge and discharge control circuit and rechargeable power supply...
Publication number
20090079395
Publication date
Mar 26, 2009
Kazuaki Sano
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Battery state monitoring circuit and battery apparatus
Publication number
20090009133
Publication date
Jan 8, 2009
Yoshihisa Tange
G01 - MEASURING TESTING
Information
Patent Application
Voltage regulator
Publication number
20080180079
Publication date
Jul 31, 2008
Tadashi Kurozo
G05 - CONTROLLING REGULATING
Information
Patent Application
Switched capacitor amplifier circuit and method for operating a swi...
Publication number
20070194844
Publication date
Aug 23, 2007
Seiko Instruments Inc.
Walter Signori
H03 - BASIC ELECTRONIC CIRCUITRY