Kei HANZAWA

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Illumination device, display apparatus, and timepiece
- Patent number 9,523,960
- Issue date Dec 20, 2016
- Casio Computer Co., Ltd.
- Kei Hanzawa
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
DISPLAY DEVICE AND WATCH
- Publication number 20240210895
- Publication date Jun 27, 2024
- CASIO COMPUTER CO., LTD.
- Jun MIWA
- G02 - OPTICS
Information Patent Application
ILLUMINATION DEVICE, DISPLAY APPARATUS, AND TIMEPIECE
- Publication number 20150009783
- Publication date Jan 8, 2015
- CASIO COMPUTER CO., LTD.
- Kei HANZAWA
- G02 - OPTICS