The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 01, 2009
Filed:
Dec. 24, 2003
Shingo Yoshida, Kobe, JP;
Seigou Akazawa, Kobe, JP;
Keiko Akazawa, Legal Representative, Kobe, JP;
Toyotaro Maruyama, Kobe, JP;
Takeshi Takeuchi, Kobe, JP;
Shigeyoshi Furuhara, Kawasaki, JP;
Masanori Ikenaga, Kobe, JP;
Toshio Nakao, Yokohama, JP;
Shingo Yoshida, Kobe, JP;
Seigou Akazawa, Kobe, JP;
Keiko Akazawa, legal representative, Kobe, JP;
Toyotaro Maruyama, Kobe, JP;
Takeshi Takeuchi, Kobe, JP;
Shigeyoshi Furuhara, Kawasaki, JP;
Masanori Ikenaga, Kobe, JP;
Toshio Nakao, Yokohama, JP;
Sumitomo Bakelite Company, Ltd., Tokyo, JP;
Abstract
A manufacturing apparatus is provided for manufacturing a tubular resin film of high quality and little thickness variations, which is stretched and given an orientation, and suitable as retardation film or the like. It comprises a stretching section () for stretching the tubular resin film (), and a maintaining section () for maintaining a shape of said tubular resin film () stretched. Further, said stretching section () is arranged to apply a stretching force to said tubular resin film for longitudinally and/or circumferentially stretching said tubular resin film ().
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile