Michio ARAI

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Kawasaki-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Image projection device
- Patent number 10,761,329
- Issue date Sep 1, 2020
- QD Laser, Inc.
- Mitsuru Sugawara
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Image projection device
- Patent number 10,634,904
- Issue date Apr 28, 2020
- QD Laser, Inc.
- Mitsuru Sugawara
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
IMAGE PROJECTION DEVICE
- Publication number 20180373024
- Publication date Dec 27, 2018
- QD LASER, INC.
- Mitsuru SUGAWARA
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
IMAGE PROJECTION DEVICE
- Publication number 20180373041
- Publication date Dec 27, 2018
- QD LASER, INC.
- Mitsuru SUGAWARA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
IMAGE PROJECTION DEVICE
- Publication number 20180164595
- Publication date Jun 14, 2018
- QD LASER, INC.
- Yasuhiko ARAKAWA
- G02 - OPTICS