Unisia Jecs Corporation

Canon Kabushiki Kaisha

Kyocera Connector Products Corporation

Atsugi Unisia Corp.

Central Research Institute of Electric Power Industry

Hiroaki Watanabe

Shingo Motoda

Kazuhiko Shirane

Kazuhiro Yamauchi

Satoru Nishioka

Kenji Takashima

Yuichi Kikuchi

Masahiro Kurachi

Masaharu Kitamura

Toshio Abe

Hideyuki Miyasaka

Tatsuyuki Matsuya

Naohiro Iwaya

Shota Kaneko

Hideo Yoshimura

An electrophotographic conductive member comprising: a conductive layer provided on an outer surface of a support, wherein the conductive layer comprises a plurality of domains dispersed in a matrix, the plurality of domains comprise a crosslinked product of a second rubber and a conductive particle, an outer surface of the electrophotographic conductive member is configured of the matrix and an exposed portion of the domain exposed on the outer surface of the electrophotographic conductive member, an impedance is 1.0×10to 1.0×10Ω of the electrophotographic conductive member, and when specific regions are a first region and a second region, a volume resistivity R1 of a portion being not the conductive particle in the first region and a volume resistivity R2 of a portion being not the conductive particle in the second region satisfy R1>R2.

Electrophotographic conductive member, process cartridge, and electrophotographic image forming apparatus

Provided is an electrophotographic member comprising: a substrate having a conductive surface, an elastic layer, and a surface layer, in which an impedance of the electrophotographic member is in a range of 1.0×10to 1.0×10Ω, the elastic layer comprises a first phase comprising at least a first rubber, and a second phase comprising a second rubber and conductive particles, a thickness of the elastic layer is 10 μm or more, the elastic layer has a matrix-domain structure in which domains composed of the second phase are dispersed in a matrix composed of the first phase in a region of 5 μm or more in a depth direction from an interface between the elastic layer and the surface layer, and the amount of the second phase in the elastic layer is greater near the surface and less in the internal region.

Electrophotographic member, process cartridge, and electrophotographic image forming apparatus

Used is an electro-conductive member for electrophotography including: a support having an electro-conductive outer surface; and an electro-conductive layer on the outer surface of the support, wherein the electro-conductive layer includes: a matrix containing a first crosslinked rubber product and having a volume resistivity greater than 1.0×10Ωcm; and domains dispersed in the matrix, wherein the domain includes a second crosslinked rubber product and an electron conductive agent; and the electro-conductive layer includes a region T in which the volume resistivity of the matrix decreases in a depth direction from the outer surface of the electro-conductive member.

Electro-conductive member, process cartridge, and electrophotographic image forming apparatus

A receptacle connector includes a receptacle insulator having an annular outer peripheral wall which defines a fitting recess; receptacle contacts; and a receptacle-side metal fixing member. When a projecting fitting portion of a plug insulator of a plug connector is fitted into the fitting recess, plug contacts of the plug connector come into contact with the receptacle contacts, and the plug connector comes into contact with the receptacle-side metal fixing member. The receptacle-side metal fixing member and the receptacle insulator are integrally formed by insert molding, and the receptacle-side metal fixing member includes a resilient contact portion which is spaced from a surface of the outer peripheral wall on the circumferentially inner side thereof when the resilient contact portion is in a free state.

Receptacle connector and method of producing receptacle connector

Receptacle connector

Plug connector

Gasification equipment with a gasification furnace which maintains a. high cold gas efficiency, and suppresses a temperature rise of the gasification gas to minimize ash deposition is disclosed. A part of a COgas separated from an exhaust of a power generation plant is compressed by a. recovered COcompressor 25. The compressed COgas is used for transport of coal (pulverized coal). The COgas is supplied, together with the pulverized coal, into a gasification furnace to accelerate the formation of CO by an endothermic reaction between C and COand suppress a temperature raise within a coal gasification furnace 15, thereby producing a gasification gas.

Gasification equipment

In a reciprocating piston of an internal combustion engine comprising a piston skirt having a major-thrust-side skirt portion and a minor-thrust-side skirt portion, a projected circumferential width of the minor-thrust-side skirt portion is greater than a projected circumferential width of the major-thrust-side skirt portion. Additionally, the piston skirt is dimensioned so that the minimum thickness of the minor-thrust-side skirt portion is less than the minimum thickness of the major-thrust-side skirt portion.

Piston of internal combustion engine

A piston for an internal combustion engine includes a ring land formed with a piston-ring groove, and a skirt connected to the ring land so that the piston-ring groove is adjacent thereto, the skirt being formed with a piston-pin hole with an axis, and having a plane including the axis of the piston-pin hole. A taper is formed on the skirt in a first portion thereof nearer to the ring land than the plane to converge on the ring land.

Piston for internal combustion engines

A piston for an internal combustion engine comprises at least a pair of ribs arranged between an inner surface portion of a skirt and side portions of pin bosses. The ribs are symmetrical with respect to a thrust center line of the piston and have in a longitudinal direction thereof a center line which is positioned to be lower than an axis of a piston pin.

Piston for internal combustion engine

A piston skirt has narrowed relief sections adjacent piston bosses and between first and second relief sections. The first relief sections extend between a piston head and respective piston bosses whist the second relief sections extend downward from the respective piston bosses. The narrowed relief sections are spaced from each other in parallel to piston pin holes at a distance which is smaller than that at which the first and second relief sections are space from each other, respectively. The narrowed relief sections are formed thicker and therefore more rigid than the first and second relief sections so that the piston skirt is more rigid adjacent the piston bosses and less rigid above and below the piston bosses, whereby to effectively lessen side thrust of the piston to the cylinder wall without deteriorating the durability.

Engine piston

In order to ensure an adequate supply of oil onto the thrust surfaces of a reciprocating type internal combustion engine piston, recesses are formed in the skirt proximate each thrust surface. The boundary defined between the surface of the skirt and the recess is defined by a rounded surface which smoothly merges the recess with the surface of the skirt, eliminates sharp edges, and permits oil to flow uninhibited out of the recess onto the thrust surfaces.

Growing community of inventors

Kanagawa, Japan

Hiroaki Watanabe