Masao Miyamura

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Phase correction element and optical head device
- Patent number 7,688,700
- Issue date Mar 30, 2010
- Asahi Glass Company, Limited
- Yoshiharu Ooi
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL COMPONENT
- Publication number 20150338552
- Publication date Nov 26, 2015
- ASAHI GLASS COMPANY, LIMITED
- Kensuke Fujii
- G02 - OPTICS
Information Patent Application
PHASE CORRECTION ELEMENT AND OPTICAL HEAD DEVICE
- Publication number 20100020671
- Publication date Jan 28, 2010
- ASAHI GLASS COMPANY LIMITED
- Yoshiharu Ooi
- G02 - OPTICS
Information Patent Application
Phase correction element and optical head device
- Publication number 20050226122
- Publication date Oct 13, 2005
- ASAHI GLASS COMPANY LIMITED
- Yoshiharu Ooi
- G02 - OPTICS