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Yasuji Hirabayashi
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Hachioji, JP
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last 30 patents
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Patent Grant
Novel wholly aromatic copolyester, process for production thereof,...
Patent number
4,436,894
Issue date
Mar 13, 1984
Teijin Limited
Takanori Urasaki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Patent Grant
Biaxially oriented wholly aromatic polyester film
Patent number
4,333,907
Issue date
Jun 8, 1982
Teitin Limited
Takanori Urasaki
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL