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:
Nov. 04, 2008
Filed:
May. 11, 2004
Toshiaki Kagawa, Nara, JP;
Hiroshi Kida, Yamatokoriyama, JP;
Takashi Yamanaka, Yamatokoriyama, JP;
Tetsunori Mitsuoka, Tondabayashi, JP;
Toshiaki Kagawa, Nara, JP;
Hiroshi Kida, Yamatokoriyama, JP;
Takashi Yamanaka, Yamatokoriyama, JP;
Tetsunori Mitsuoka, Tondabayashi, JP;
Sharp Kabushiki Kaisha, Osaka-shi, JP;
Abstract
A fusing device () has heat reflectors () and () positioned in consideration of the fact that convective heat loss from respective outer surfaces of the heat reflectors () and () depends on orientation of the outer surfaces. More specifically, each of the heat reflectors () and () are positioned so as to have a convective heat transfer coefficient η of up to 0.9. The convective heat transfer coefficient η is given by the following expression:η=(0.770.54)/(),were Su is a projected area of an outer surface of each of the heat reflectors on an upper horizontal plane, Sh is a projected area of the same on a vertical plane, and Sd is a projected area of the same on a lower horizontal plane.