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Tomofumi Kitani
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Failure bit count circuit for memory and method thereof
Patent number
11,513,880
Issue date
Nov 29, 2022
Powerchip Semiconductor Manufacturing Corporation
Tomofumi Kitani
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Power switch control circuit and control method thereof
Patent number
10,803,961
Issue date
Oct 13, 2020
Powerchip Semiconductor Manufacturing Corporation
Tomofumi Kitani
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Current-voltage convertor, reference voltage generator and non-vola...
Patent number
10,795,397
Issue date
Oct 6, 2020
Powerchip Semiconductor Manufacturing Corporation
Tomofumi Kitani
G11 - INFORMATION STORAGE
Information
Patent Grant
Digital to analog convertor, failure bit number detector and non-vo...
Patent number
10,720,932
Issue date
Jul 21, 2020
Powerchip Semiconductor Manufacturing Corporation
Tomofumi Kitani
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Page buffer circuit and nonvolatile storage device
Patent number
10,714,190
Issue date
Jul 14, 2020
Powerchip Semiconductor Manufacturing Corporation
Tomofumi Kitani
G11 - INFORMATION STORAGE
Information
Patent Grant
Voltage generating circuit and regulator circuit for precisely cont...
Patent number
9,537,398
Issue date
Jan 3, 2017
Powerchip Technology Corporation
Hideki Arakawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Negative reference voltage generating circuit
Patent number
9,502,969
Issue date
Nov 22, 2016
Powerchip Technology Corporation
Hideki Arakawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
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Patent Application
CURRENT-VOLTAGE CONVERTOR, REFERENCE VOLTAGE GENERATOR AND NON-VOLA...
Publication number
20200278714
Publication date
Sep 3, 2020
Powerchip Semiconductor Manufacturing Corporation
Tomofumi Kitani
G05 - CONTROLLING REGULATING
Information
Patent Application
PAGE BUFFER CIRCUIT AND NONVOLATILE STORAGE DEVICE
Publication number
20200160917
Publication date
May 21, 2020
POWERCHIP TECHNOLOGY CORPORATION
Tomofumi Kitani
G11 - INFORMATION STORAGE
Information
Patent Application
POWER SWITCH CONTROL CIRCUIT AND CONTROL METHOD THEREOF
Publication number
20200160922
Publication date
May 21, 2020
POWERCHIP TECHNOLOGY CORPORATION
Tomofumi Kitani
G11 - INFORMATION STORAGE
Information
Patent Application
VOLTAGE GENERATING CIRCUIT, REGULATOR CIRCUIT, SEMICONDUCTOR STORAG...
Publication number
20160233770
Publication date
Aug 11, 2016
POWERCHIP TECHNOLOGY CORPORATION
Hideki Arakawa
G11 - INFORMATION STORAGE
Information
Patent Application
NEGATIVE REFERENCE VOLTAGE GENERATING CIRCUIT
Publication number
20160211744
Publication date
Jul 21, 2016
POWERCHIP TECHNOLOGY CORPORATION
Hideki Arakawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER