Ryoji Higashi

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Yamanashi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Video disk and recorder with time recorded twice
- Patent number 4,766,504
- Issue date Aug 23, 1988
- Pioneer Electronic Corporation
- Toshio Narusawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Video disc type recording and reproducing system with interference...
- Patent number 4,683,502
- Issue date Jul 28, 1987
- Pioneer Electronic Corporation
- Ryoji Higashi
- G11 - INFORMATION STORAGE