Yasuo Toyooka

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Toyama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Acrylic laminated diffuser panel having high light-diffusing proper...
- Patent number 4,415,509
- Issue date Nov 15, 1983
- Mitsubishi Rayon Company, Ltd.
- Yasuo Toyooka
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Decorated synthetic resin sheet
- Patent number 4,302,497
- Issue date Nov 24, 1981
- Mitsubishi Rayon Co., Ltd.
- Yasuo Toyooka
- B32 - LAYERED PRODUCTS
Information Patent Grant
Continuous production of decorated synthetic resin sheet
- Patent number 4,254,074
- Issue date Mar 3, 1981
- Mitsubishi Rayon Co., Ltd.
- Yasuo Toyooka
- B32 - LAYERED PRODUCTS