Kei NOJIMA

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical system and image projection apparatus
- Patent number 11,940,720
- Issue date Mar 26, 2024
- Ricoh Company, Ltd.
- Kei Nojima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Optical system and image projection apparatus
- Patent number 11,880,122
- Issue date Jan 23, 2024
- Ricoh Company, Ltd.
- Kei Nojima
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL SYSTEM AND IMAGE PROJECTION APPARATUS
- Publication number 20220397814
- Publication date Dec 15, 2022
- Kei NOJIMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
OPTICAL SYSTEM AND IMAGE PROJECTION APPARATUS
- Publication number 20220382134
- Publication date Dec 1, 2022
- Kei NOJIMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY