Yoshitaka Nonaka

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Yamanashi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical disc and method for manufacturing the same
- Patent number 5,824,385
- Issue date Oct 20, 1998
- Pioneer Electronic Corporation
- Masahide Itoigawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium and method of manufacturing thereof
- Patent number 5,356,684
- Issue date Oct 18, 1994
- Pioneer Electronic Corporation
- Masaomi Ebe
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...