Yuji Abrakawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Manufacturing method of diffractive optical elements
- Patent number 10,520,808
- Issue date Dec 31, 2019
- DOCOMO Incorporated
- Fusao Ishii
- C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

Information Patent Application
OPTICS OF WEARABLE DISPLAY TO INCREASE EYE-BOX
- Publication number 20200409143
- Publication date Dec 31, 2020
- Fusao Ishii
- G02 - OPTICS
Information Patent Application
OPTICS OF WEARABLE DISPLAY USING LASER BEAM SCANNER
- Publication number 20200271931
- Publication date Aug 27, 2020
- Fusao Ishii
- G02 - OPTICS
Information Patent Application
MANUFACTURING METHOD OF DIFFRACTIVE OPTICAL ELEMENTS
- Publication number 20190079395
- Publication date Mar 14, 2019
- Fusao Ishii
- G02 - OPTICS
Information Patent Application
GHOST IMAGE ELIMINATION OF DOE USING FOURIER OPTICS METHOD
- Publication number 20180275333
- Publication date Sep 27, 2018
- Fusao Ishii
- G02 - OPTICS