Takafumi Sakamoto

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Tokushima-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical disc and method of manufacturing the same
- Patent number 6,623,591
- Issue date Sep 23, 2003
- Kitano Engineering Co, Ltd.
- Ryoko Kitano
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Optical disc and method of manufacturing the same
- Publication number 20010053123
- Publication date Dec 20, 2001
- KITANO ENGINEERING CO., LTD.
- Ryoko Kitano
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL