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. 11, 2007
Filed:
Feb. 27, 2004
Hitoshi Tomobe, Hiroshima, JP;
Hirotoshi Mizota, Tokyo, JP;
Hajime Okutsu, Hiroshima, JP;
Tomonari Murakami, Hiroshima, JP;
Daisuke Morimoto, Toyama, JP;
Hitoshi Tomobe, Hiroshima, JP;
Hirotoshi Mizota, Tokyo, JP;
Hajime Okutsu, Hiroshima, JP;
Tomonari Murakami, Hiroshima, JP;
Daisuke Morimoto, Toyama, JP;
Mitsubishi Rayon Co., Ltd., Tokyo, JP;
Abstract
To be provided are a heat treatment apparatus having blocking members which block gaps between the side walls of nozzle boxes provided with slit nozzles, whose size in the lengthwise direction is greater than the width of a sheet, and the side walls of a heat treatment chamber, and gas having a uniform velocity fluctuating no more than ±25% in the lengthwise direction of the slit nozzles is blown out of the slit nozzles to subject the sheet to heat treatment, resulting in little unevenness of temperature in the widthwise direction and reduced energy loss, and a heat treatment method using this heat treatment apparatus.