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:
Sep. 14, 2010
Filed:
Aug. 25, 2006
Masaya Suzuki, Minami-Ashigara, JP;
Hirofumi Toyama, Minami-Ashigara, JP;
Koju Ito, Minami-Ashigara, JP;
Katsumi Sasata, Minami-Ashigara, JP;
Hiromoto Haruta, Minami-Ashigara, JP;
Kunihiro Atsumi, Minami-Ashigara, JP;
Takashi Murooka, Minami-Ashigara, JP;
Masaya Suzuki, Minami-Ashigara, JP;
Hirofumi Toyama, Minami-Ashigara, JP;
Koju Ito, Minami-Ashigara, JP;
Katsumi Sasata, Minami-Ashigara, JP;
Hiromoto Haruta, Minami-Ashigara, JP;
Kunihiro Atsumi, Minami-Ashigara, JP;
Takashi Murooka, Minami-Ashigara, JP;
Fujifilm Corporation, Minato-Ku, Tokyo, JP;
Abstract
A polymer film, wherein when any point in the polymer film is taken as a center, a maximum difference between high and low film thicknesses within a range of 60 mm diameter is not more than 1 μm, an RMS value of a film thickness is 0 μm to 0.15 μm or a difference between maximum and minimum values of slow axis angle in any 60 mm×60 mm square in the polymer film is 0° to 0.40°; and a solution casting film-forming method comprising: casting a dope on a support; peeling the casted film, wherein a dry wind of 3 m/s to 15 m/s is applied to the casted film within 15 seconds from the casting, and wherein before the dry wind is applied to the casted film, an air floating on a surface of the casted film has a wind velocity of less than 3 m/s.