Keisuke Ito

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Patents Grantslast 30 patents

Information Patent Grant
Video recording and playback device with built-in video camera in a...
- Patent number 5,274,506
- Issue date Dec 28, 1993
- Matsushita Electric Industrial Co., Ltd.
- Naoki Hashimoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Device for producing an information recording disk
- Patent number 4,472,124
- Issue date Sep 18, 1984
- Matsushita Electric Industrial Co., Limited
- Toshiaki Kashihara
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Device for manufacturing information recording mediums
- Patent number 4,449,916
- Issue date May 22, 1984
- Matsushita Electric Industrial Co., Ltd.
- Keisuke Ito
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL