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Ryo Iijima
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Utsunomiya-shi, JP
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Patents Grants
last 30 patents
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Patent Grant
Imaging optical system, image projection apparatus using the same,...
Patent number
10,955,732
Issue date
Mar 23, 2021
Canon Kabushiki Kaisha
Ryo Iijima
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL SYSTEM AND PROJECTION DISPLAY APPARATUS
Publication number
20230077822
Publication date
Mar 16, 2023
Canon Kabushiki Kaisha
Ryo Iijima
G02 - OPTICS
Information
Patent Application
OPTICAL APPARATUS, AND IN-VEHICLE SYSTEM AND MOVING APPARATUS EACH...
Publication number
20220229156
Publication date
Jul 21, 2022
Canon Kabushiki Kaisha
Masatsugu Nakano
G01 - MEASURING TESTING
Information
Patent Application
IMAGING OPTICAL SYSTEM, IMAGE PROJECTION APPARATUS USING THE SAME,...
Publication number
20190377250
Publication date
Dec 12, 2019
Canon Kabushiki Kaisha
Ryo Iijima
G02 - OPTICS
Information
Patent Application
PROJECTION LENS AND IMAGE PROJECTION APPARATUS
Publication number
20170153430
Publication date
Jun 1, 2017
Canon Kabushiki Kaisha
Ryo Iijima
G02 - OPTICS