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. 11, 2002
Filed:
Feb. 06, 2001
Konica Corporation, , JP;
Abstract
The fixing apparatus fixes a toner image on a transfer material by applying heat and pressure onto the transfer material. It uses a roll-shaped rotary member for applying heat. The roll-shaped rotary member has a ray radiating device for radiating heat rays inside a cylindrical ray-transmitting base member. A cylindrical ray-transmitting elastic/insulating layer is on the base member and a heat ray absorbing layer is provided on the elastic/insulating layer. The difference between the heat ray absorbing ratio (%) per unit thickness (mm) in the base member and that in the ray-transmitting elastic/insulating layer is made not more than 20%. The fluctuations of thickness in the base member and the elastic/insulating layer are equal to, or not more than, 0.1 mm.