	US 12,259,670 B2
	Tubular fixing member, fixing device, and image forming apparatus
Shingo Ebukuro, Kanagawa (JP); and Yasuhiko Kinuta, Kanagawa (JP)
Assigned to FUJIFILM Business Innovation Corp., Tokyo (JP)
Filed by FUJIFILM Business Innovation Corp., Tokyo (JP)
Filed on Aug. 8, 2023, as Appl. No. 18/446,134.
Claims priority of application No. 2023-032012 (JP), filed on Mar. 2, 2023.
Prior Publication US 2024/0295846 A1, Sep. 5, 2024
Int. Cl. G03G 15/20 (2006.01)

CPC G03G 15/2057 (2013.01)

9 Claims

1. A tubular fixing member comprising:

a substrate, an elastic layer, an interlayer, and a surface layer laminated in this order,

wherein “E1<E2” is satisfied in a case where a storage elastic modulus of the elastic layer is denoted by E1 and a storage elastic modulus of the interlayer is denoted by E2,

wherein “λ1z<λ2z” is satisfied in a case where a thermal conductivity of the elastic layer in a thickness direction is denoted by λ1z and a thermal conductivity of the interlayer in the thickness direction is denoted by λ2z, and

wherein Δ1z is 0.8 W/m·K or more and 1.4 W/m·K or less.