Yuko Watanuki

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polyethylene naphthalate multilayered film for high density magneti...
- Patent number 5,510,192
- Issue date Apr 23, 1996
- Diafoil Hoechst Company, Limited
- Shigeo Utsumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Laminated polyester film for magnetic tape having specific surface...
- Patent number 5,366,783
- Issue date Nov 22, 1994
- Diafoil Hoechst Company, Limited
- Shigeo Utsumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Polyester multilayered film for high-density magnetic disc
- Patent number 5,318,823
- Issue date Jun 7, 1994
- Diafoil Hoechst Company, Limited
- Shigeo Utsumi
- B32 - LAYERED PRODUCTS