Canon Kabushiki Kaisha

International Business Machines Corporation

Mitsubishi Chemical Corporation

Emd Corporation

Akira Watanabe

Koichi Sato

Kenji Onuma

Naoto Kameyama

Rieko Sakamoto

Yasushi Shimizu

Kimihiro Yoshimura

Hiroshi Tominaga

Koichi Nakamura

Akinori Ebe

Maho Tanaka

Takenori Sueoka

Hideko Akai

Yuichi Setsuhara

Tadanobu Yoshikawa

Hiroshi Fujikura

Shigeki Takishita

Shinichiro Ishihara

Keiji Karube

Sachiko Kowata

Hajime Ashida

Eiji Ino

Takao Ando

Norishige Suzuki

An intermediate transfer member for electrophotography comprising a substrate and a surface layer provided on the substrate. The surface layer comprises a binder resin and a perfluoropolyether. An extraction amount of the perfluoropolyether per 10 mmof the surface layer, is 0.10 mg to 5.00 mg, the extraction amount of the perfluoropolyether obtained by immersing the intermediate transfer member into a solvent that can dissolve the perfluoropolyether at 25&#xb0; C. for 24 hours. A surface of the intermediate transfer member that is not subjected to first and second treatments, has a n-hexadecane contact angle of 55&#xb0; or more. A surface of the intermediate transfer member that has been subjected to the first treatment, has a n-hexadecane contact angle of 40&#xb0; or less. A surface of the intermediate transfer member that has been subjected to the second treatment, has a n-hexadecane contact angle of 50&#xb0; or more.

Intermediate transfer member for electrophotography and electrophotographic apparatus

The present invention relates to an electrophotographic intermediate transfer member that, even if an image is repeatedly and continuously transferred, can retain its transfer performance and can obtain an excellent image for a long time. The electrophotographic intermediate transfer member has a base layer and a surface layer, the surface layer has a matrix-domain structure in the cross section in the thickness direction, the matrix is formed of a binder resin, the domains contains a perfluoropolyether, and a microhardness of a surface of the electrophotographic intermediate transfer member measured by an ultramicro-hardness meter is 50 MPa or more.

Electrophotographic intermediate transfer member and electrophotographic apparatus

A member for electrophotography having a multilayer structure or a single-layer structure, including an outermost layer which satisfies the following A, B and C:

Member for electrophotography, process cartridge, and electrophotographic apparatus

An object of the present invention is to provide: an electrophotographic member which enhances image quality, prevents the lowering of a grade of an image even when images have been repeatedly output, and can remarkably enhance the stability of the grade of the image; an intermediate transfer member; and an image forming apparatus. The electrophotographic member includes a base layer and a surface layer, wherein the surface layer has a binder resin, perfluoropolymer fine particles, a fluorocarbon resin dispersing agent and a particular fluorine compound, wherein the perfluoropolymer fine particle has a fluorine compound carried on its surface.

Electrophotographic member, intermediate transfer member, image forming apparatus, and method for manufacturing electrophotographic member

The present invention aims at providing a plasma processing apparatus for performing a plasma processing on a planar substrate body to be processed, the apparatus being capable of generating the plasma with good uniformity and efficiently using the plasma, and having a high productivity. That is, the plasma processing apparatus according to the present invention includes: a vacuum chamber; one or plural antenna supporters (plasma generator supporters) projecting into the internal space of the vacuum chamber; radio-frequency antennas (plasma generators) attached to each antenna supporter; and a pair of substrate body holders provided across the antenna supporter in the vacuum chamber, for holding a planar substrate body to be processed.

Plasma processing apparatus

To provide a cellulose fiber composite having high transparency, low water absorption and low coefficient of linear thermal expansion. A fiber composite which comprises fibers having an average fiber diameter of at most 30 nm and a matrix material and which has a haze of at most 5 according to JIS K-7136 when the fiber composite has a thickness of 100 &#x3bc;m.

Fiber composite

A tape-containing cartridge accommodates an endless tape either in the form of random loops or in the form of a tape roll wound on a single reel. A tape passageway extends the cartridge from a cavity adjacent a back wall, thence between a first side wall and a first internal wall past pad means and thence between a front wall and a second internal wall past a transducer-receiving opening formed in the front wall and thence between a pinch roller and portions of the front and second side walls into the cavity. The second side wall has an opening facing the pinch roller for receiving an external capstan. A positional relationship between the pinch roller and the capstan is selected such that a tangential force line at the contact point of the pinch roller and the capstan points inwards of the second side wall. An inward protrusion and a rotatably mounted guide roller provide a limited opening at the entry to the tape passageway to prevent tape creasing at the entry, while limiting drag on the tape.

Tape cartridge having enhanced tape drive facilities

Growing community of inventors

Yokohama, Japan

Akira Watanabe