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Rikoku Nakamura
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Piezoelectric sensor
Patent number
11,506,555
Issue date
Nov 22, 2022
CITIZEN FINEDEVICE CO., LTD.
Rikoku Nakamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Disconnection detection circuit of pressure detection device
Patent number
10,247,634
Issue date
Apr 2, 2019
CITIZEN FINEDEVICE CO., LTD.
Rikoku Nakamura
G01 - MEASURING TESTING
Information
Patent Grant
Pressure detection device
Patent number
10,054,509
Issue date
Aug 21, 2018
CITIZEN FINEDEVICE CO., LTD.
Rikoku Nakamura
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Pressure detection device
Patent number
9,945,750
Issue date
Apr 17, 2018
CITIZEN FINEDEVICE CO., LTD.
Rikoku Nakamura
G01 - MEASURING TESTING
Information
Patent Grant
Temperature compensation oscillator and method for manufacturing th...
Patent number
7,728,685
Issue date
Jun 1, 2010
Citizen Holdings Co., Ltd.
Rikoku Nakamura
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Voltage-controlled crystal oscillator
Patent number
6,507,248
Issue date
Jan 14, 2003
Citizen Watch Co., Ltd.
Rikoku Nakamura
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Electronic timepiece
Patent number
6,301,198
Issue date
Oct 9, 2001
Citizen Watch Co., Ltd.
Yukio Otaka
G04 - HOROLOGY
Information
Patent Grant
Liquid crystal display device
Patent number
6,023,252
Issue date
Feb 8, 2000
Citizen Watch Co., Ltd.
Takakazu Yano
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Patents Applications
last 30 patents
Information
Patent Application
PIEZOELECTRIC SENSOR
Publication number
20190086281
Publication date
Mar 21, 2019
CITIZEN FINEDEVICE CO., LTD.
Rikoku NAKAMURA
G01 - MEASURING TESTING
Information
Patent Application
PRESSURE DETECTION DEVICE
Publication number
20170146421
Publication date
May 25, 2017
CITIZEN FINEDEVICE CO., LTD.
Rikoku NAKAMURA
G01 - MEASURING TESTING
Information
Patent Application
DISCONNECTION DETECTION CIRCUIT OF PRESSURE DETECTION DEVICE
Publication number
20170138810
Publication date
May 18, 2017
CITIZEN FINEDEVICE CO., LTD.
Rikoku NAKAMURA
G01 - MEASURING TESTING
Information
Patent Application
PRESSURE DETECTION DEVICE
Publication number
20170131170
Publication date
May 11, 2017
CITIZEN FINEDEVICE CO., LTD.
Rikoku NAKAMURA
G01 - MEASURING TESTING
Information
Patent Application
TEMPERATURE COMPENSATION OSCILLATOR AND METHOD FOR MANUFACTURING TH...
Publication number
20090115542
Publication date
May 7, 2009
CITIZEN HOLDINGS CO., LTD.
Rikoku Nakamura
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Voltage-controlled crystal oscillator
Publication number
20010045869
Publication date
Nov 29, 2001
CITIZEN WATCH CO., LTD.
Rikoku Nakamura
H03 - BASIC ELECTRONIC CIRCUITRY