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:
Jun. 27, 2023
Filed:
Oct. 14, 2021
Takahiro Imada, Kanagawa, JP;
Yasunori Ishigaya, Kanagawa, JP;
Shigeo Nanno, Kanagawa, JP;
Takumi Waida, Kanagawa, JP;
Daisuke Hirano, Kanagawa, JP;
Takahiro Imada, Kanagawa, JP;
Yasunori Ishigaya, Kanagawa, JP;
Shigeo Nanno, Kanagawa, JP;
Takumi Waida, Kanagawa, JP;
Daisuke Hirano, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A heating device includes a heating rotator, a pressure rotator, a planar heater, and a holder. The pressure rotator is configured to press against the fixing rotator to form a nip through which the recording medium is conveyed. The planar heater includes a plurality of heat generators arranged side by side and at least one separation region between the plurality of heat generators. The holder holds the planar heater and contacts the planar heater in a pressure direction in which the pressure rotator presses the heating rotator. The holder includes at least one clearance structure configured to cause a contact area between the planar heater and a portion of the holder corresponding to the at least one separation region to be smaller than a contact area between the planar heater and a portion of the holder not corresponding to the at least one separation region.