Ryuichiro Goto

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Patents Grantslast 30 patents

Information Patent Grant
Wavelength-selective diffraction element and an optical head device
- Patent number 6,891,147
- Issue date May 10, 2005
- Asahi Glass Company, Limited
- Ryuichiro Goto
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Wavelength-selective diffraction element and an optical head device
- Publication number 20040094699
- Publication date May 20, 2004
- ASAHI GLASS COMPANY LIMITED
- Ryuichiro Goto
- G02 - OPTICS