Koji YOSHIKAWA

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Sukagawa-city, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical element with light shielding area, and imaging lens
- Patent number 10,955,660
- Issue date Mar 23, 2021
- KANTATSU CO., LTD.
- Nobuyuki Ohtsu
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL ELEMENT AND IMAGING LENS
- Publication number 20190317318
- Publication date Oct 17, 2019
- KANTATSU CO., LTD
- Nobuyuki OOTSU
- G02 - OPTICS