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Yoichiro TAKAHASHI
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Miyagi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical sensor
Patent number
10,768,095
Issue date
Sep 8, 2020
Ricoh Company, Ltd.
Yoichiro Takahashi
G01 - MEASURING TESTING
Information
Patent Grant
Optical examination method and optical examination device
Patent number
10,292,590
Issue date
May 21, 2019
Ricoh Company, Ltd.
Toshihiro Ishii
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Optical sensor, optical testing apparatus, and optical characterist...
Patent number
10,175,169
Issue date
Jan 8, 2019
Ricoh Company, Ltd.
Toshihiro Ishii
G01 - MEASURING TESTING
Information
Patent Grant
Optical sensor, optical examination device, and optical property de...
Patent number
10,177,530
Issue date
Jan 8, 2019
Ricoh Company, Ltd.
Toshihiro Ishii
G01 - MEASURING TESTING
Information
Patent Grant
Optical sensor, optical inspection device, and optical property det...
Patent number
10,067,056
Issue date
Sep 4, 2018
Ricoh Company, Ltd.
Masayuki Fujiwara
G01 - MEASURING TESTING
Information
Patent Grant
Optical sensor, optical testing device, and optical characteristic...
Patent number
10,039,452
Issue date
Aug 7, 2018
Ricoh Company, Ltd.
Toshihiro Ishii
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL SENSOR
Publication number
20200064253
Publication date
Feb 27, 2020
RICOH COMPANY, LTD.
Yoichiro TAKAHASHI
G01 - MEASURING TESTING
Information
Patent Application
OPTICAL SENSOR, OPTICAL TESTING APPARATUS, AND OPTICAL CHARACTERIST...
Publication number
20180011015
Publication date
Jan 11, 2018
RICOH COMPANY, LTD.
Toshihiro ISHII
G01 - MEASURING TESTING
Information
Patent Application
OPTICAL SENSOR, OPTICAL EXAMINATION DEVICE, AND OPTICAL PROPERTY DE...
Publication number
20170179682
Publication date
Jun 22, 2017
RICOH COMPANY, LTD.
Toshihiro ISHII
G01 - MEASURING TESTING
Information
Patent Application
OPTICAL EXAMINATION METHOD AND OPTICAL EXAMINATION DEVICE
Publication number
20160360966
Publication date
Dec 15, 2016
RICOH COMPANY, LTD.
Toshihiro ISHII
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
OPTICAL SENSOR, OPTICAL TESTING DEVICE, AND OPTICAL CHARACTERISTIC...
Publication number
20160242647
Publication date
Aug 25, 2016
RICOH COMPANY, LTD.
Toshihiro Ishii
G01 - MEASURING TESTING
Information
Patent Application
OPTICAL SENSOR, OPTICAL INSPECTION DEVICE, AND OPTICAL PROPERTY DET...
Publication number
20160195473
Publication date
Jul 7, 2016
Masayuki FUJIWARA
G01 - MEASURING TESTING