Fujifilm Business Innovation Corp.

Fuji Xerox Co., Ltd.

Ryohei Yoshikawa

Tomotake Inagaki

Kenji Kajiwara

Hiroaki Tanaka

Hideaki Ohara

Taiki Nagamatsu

Kenji Omori

Tomoko Suzuki

Yusuke Watanabe

Masayuki Seko

Ryo Sekiguchi

Masato Ono

Jun Kimura

Koichi Matsumoto

Satoya Sugiura

Masato Furukawa

Shigeru Fukuda

Daisuke Tanemura

Yasuhiko Kinuta

Yosuke Kubo

Kenta Yamakoshi

Hitoshi Komuro

Junko Yamasaki

Ryosuke Kubota

A film contains at least one macromolecular compound selected from the group consisting of resins and rubbers and an electrically conductive filler including at least a needle-shaped filler and dispersed in the macromolecular compound. The content of the electrically conductive filler is 40% by volume or more.

Film, tubular fixing member, fixing device, and image forming apparatus

A resin belt contains a resin, a low-melting-point alloy having a melting point of 370° C. or lower, and a fibrous filler.

Resin belt, fixing belt, fixing device, and image forming apparatus

An endless belt contains a resin, a filler A having an aspect ratio of 5 or more, and two or more fillers B having an aspect ratio of less than 5, in which a volume-based particle size distribution of the fillers B has two or more peaks among which a peak existing on a largest diameter side has a particle size Dmax that is equal to or more than 5 times and equal to or less than 50 times a particle size Dmin of a peak existing on a smallest diameter side.

Endless belt, fixing belt, fixing device, and image forming apparatus

A polymer film includes at least one type of polymer selected from the group consisting of a resin and rubber and fillers dispersed in the polymer; in which in a case where the polymer film is three-dimensionally analyzed with FIB-SEM, a film thickness of the polymer film is denoted by Tm, and a length of the filler in a film thickness direction of the polymer film is denoted by Lf, a proportion of the number of fillers having Lf/Tm of 0.01 or more and less than 1.0 to the number of all the fillers is more than 40% and less than 100%.

Polymer film, tubular fixing member, fixing device, and image forming apparatus

A fixing belt includes a substrate layer that contains polyimide and a filler containing a spherical filler and a cleavable flat plate-shaped filler, in which a total amount of the filler is less than 40% by volume with respect to the substrate layer.

Fixing belt including layer of polyimide and specific filler, fixing device including the fixing belt, and image forming apparatus including the fixing device

A resin belt for an image forming apparatus includes a resin base layer containing a filler. The exposed area of the filler on an inner circumferential surface side of the resin base layer is 0.1% or less.

Resin belt for image forming apparatus, fixing belt, fixing device, and image forming apparatus

A fixing device includes: a first rotatable member; a second rotatable member disposed in contact with the first rotatable member; a pressing member that is disposed on an inner circumferential surface of the second rotatable member and presses the inner circumferential surface of the second rotatable member such that the second rotatable member is pressed against the first rotatable member; a sliding member interposed between the inner circumferential surface of the second rotatable member and the pressing member; and a lubricant interposed between the inner circumferential surface of the second rotatable member and the sliding member. The inner circumferential surface of the second rotatable member contains a resin having at least one group selected from the group consisting of an amido group, an imido group, a ketone group, and a sulfide group. A sliding surface of the sliding member contains a heat resistant thermoplastic resin other than a fluorocarbon resin and a resin having a siloxane group that is other than the heat resistant thermoplastic resin. The lubricant contains an oil having a siloxane group in a main chain.

Fixing device having reduced increase in rotational torque of second rotatable member providing an image with reduced unevenness in gloss to be formed and image forming apparatus using the same

A sliding member for a fixing device includes a resin layer that includes plural recessed portions on a surface of the resin layer, in which, in a top view, the recessed portion has a shape having a tip angle less than 90° in a sliding direction and an area ratio of an area of the recessed portions to a surface area of the resin layer is 30% or more and 70% or less.

Sliding member for fixing device, fixing device, and image forming apparatus

A belt includes a resin and an aggregate in which plural fibrous carbons are entangled with each other, in which a maximum diameter of the aggregate is 50% or less of a belt film thickness.

Belt having an aggregate with entagled and non-entangled fibrous carbons

A polymer material molded product includes a polymer material and a porous carbon material having an X-ray diffraction spectral characteristic shown in the following (1) or (2),

Polymer material molded product, fixing member, method for producing fixing member, fixing device, and image forming apparatus

An endless belt includes a resin and an acicular filler of which a thermal conductivity is 220 W/mK or more and 320 W/mK or less, a volume resistivity is 10&#x3a9;cm or more and 10&#x3a9;cm or less, and a content with respect to the endless belt is 1% by mass or more and 30% by mass or less.

A fixing belt includes, in the following order: a base material layer containing a resin; an elastic layer containing an elastic material; and a release layer, in which each of the base material layer and the elastic layer further contains an aggregate in which plural fibrous carbons are entangled with each other, a maximum diameter of the aggregate in the base material layer is 50% or less of a film thickness of the base material layer, and a maximum diameter of the aggregate in the elastic layer is 15% or less of a film thickness of the elastic layer.

Fixing belt, fixing device, and image forming apparatus

A fixing belt includes, in the following order: a resin base material layer; an elastic layer; and a release layer, in which the elastic layer contains an elastic material and an aggregate in which plural fibrous carbons are entangled with each other, and a maximum diameter of the aggregate is 15% or less of a film thickness of the elastic layer.

An endless belt includes: a resin; and electrically conductive particles, wherein an integrated discharge amount is 350 &#x3bc;C or less. The integrated discharge amount is determined by disposing an electrode at a position spaced 60 &#x3bc;m apart from the outer circumferential surface of the belt, applying a voltage to the electrode, and measuring the amount of discharge for a period of 1 second after the voltage reaches 1300 V.

Transfer device, image forming apparatus, and endless belt

A fixing belt includes an annular polyimide resin base layer having a lower imidization ratio in the outer peripheral surface than in a central portion in the thickness direction, a metal layer provided on the outer peripheral surface of the polyimide resin base layer, and an elastic layer provided on the outer peripheral surface of the metal layer.

Growing community of inventors

Kanagawa, Japan

Ryohei Yoshikawa