Oiles Corporation

Jtekt Corporation

Sumitomo Electric Device Innovations, Inc.

Oiles Industry Co., Ltd.

Shuichi Kubota

Takeshi Furukido

Takashi Horiguchi

Kouhei Kurose

Hiroto Kamimura

Katsunori Saito

Masaru Iwakura

Toshiyuki Nishio

Takashi Maeda

Hidetoshi Kaida

Yoshikazu Sakairi

Kazutsugu Kashima

Masahiro Hirayama

Arata Kikuchi

Eiji Satou

Koichi Ishida

Souichi Iwasa

Masao Shimura

Yoshiro Kuzumi

Toshio Iida

Toshihiko Shimura

Satoshii Matsunaga

Yoshifumi Obata

Motoki Saji

Hiroshi Suda

An optical module installed within an optical transmitter apparatus is disclosed. The optical module provides an electrically insulating carrier, a semiconductor element, and a capacitor. The carrier provides a ground pattern and a bias pad. The ground pattern mounts the capacitor and the semiconductor element thereon. The bias pad is electrically isolated from the ground pattern thereby forming a parasitic capacitor against the ground pattern. The optical module further includes at least two bonding wires among a first bonding wire connecting the semiconductor element with the bias pad, a second bonding wire connecting the bias pad with the capacitor, and an additional bonding wire connecting the capacitor with the semiconductor element. The semiconductor element is supplied with a bias current through the at least two bonding wires.

Optical module and optical transmitting apparatus installing a number of optical modules

A multi-lane optical apparatus is disclosed. The optical apparatus includes monitor photodiodes (mPD) whose number corresponds to a number of lanes. The mPDs are arranged in an array so as to intersect optical axes of the respective lanes. The mPD has a light-sensitive area and an electrode that are arranged on a diagonal connecting two corners. The light-sensitive area is disposed offset from the center of the mPD. The mPDs in outermost are disposed such that the respective electrodes face inward.

Optical transmitter apparatus

A spherical annular base memberis constructed such that a heat-resistant materialand a reinforcing memberare compressed and intertwined with each other so as to be provided with structural integrity. In an outer layer, a heat-resistant material, a solid lubricant constituted of a lubricating composition, and a reinforcing membermade from a metal wire net are compressed such that the solid lubricant and the heat-resistant materialare filled in meshes of the metal wire net of the reinforcing member, and the solid lubricant, the heat-resistant material, and the reinforcing memberare integrally formed in mixed form. An outer surfaceof the outer layeris formed into a smooth surfacein which a surfaceconstituted of the reinforcing memberand a surfaceconstituted by the solid lubricant are present in mixed form.

Spherical annular seal member and method of manufacturing the same

A spherical annular seal memberincludes a spherical annular base memberdefined by a cylindrical inner surface, a partially convex spherical surface, and an annular end facesand; and an outer layerformed integrally on the partially convex spherical surfaceof the spherical annular base member. The spherical annular base memberincludes a reinforcing membermade from a metal wire net and a heat-resistant materialfilling meshes of the metal wire net of the reinforcing memberand formed integrally with the reinforcing memberin mixed form. The outer layerincludes a base layerand a sliding layerconstituted of a lubricating composition and adherently formed integrally on the base layerat an outer layer intermediate surface, the base layerincluding a reinforcing membermade from a metal wire net and compressed and a heat-resistant materialfilling meshes of the metal wire net of the reinforcing memberand closely press bonded to the reinforcing member, the base layerbeing formed integrally with the partially convex spherical surface

A rack-and-pinion type steering apparatusincludes a gear casemade of aluminum or an aluminum alloy and having a hollow portion; a steering shaftrotatably supported by the gear casethrough rolling bearingsand; a pinionwhich is rotatably supported in the gear casethrough the steering shaft; a rack baron which rack teethmeshing with the pinionare formed; and a rack guidewhich is disposed in the hollow portioninside the gear caseand supports the rack barslidably with respect to its moving direction A.

Rack guide and rack-and-pinion type steering apparatus using the same

A shaft coupling mechanism for an electric power steering apparatus includes a coupling base body coupled to a rotating shaft; a coupling base body coupled to a steering shaft serving as a rotating shaft; and a rotation transmitting member which is disposed between the both coupling base bodies and transmits the rotation of the coupling base body in a direction about the axis, i.e., in an R direction, to the coupling base body as rotation in the R direction.

Shaft coupling mechanism for electric power steering apparatus

A method of manufacturing a heat-resistant expanded graphite sheet is characterized in that after an acid-treated graphite material obtained by treating a graphite material with a strong acid is compounded with a powder of an organic phosphorus compound and is agitated and mixed uniformly to obtain a mixture, this mixture is subjected to heating treatment for 1 to 10 seconds at temperatures of 950 to 1200&#xb0; C. to produce cracked gas, that gaps between graphite layers are expanded by its gas pressure to obtain expanded graphite particles having an expansion rate of 200 to 300 times, and that these expanded graphite particles are subjected to pressure molding.

Heat-resistant exfoliated graphite sheet

A spherical annular seal member () includes: a spherical annular base member () defined by a cylindrical inner surface (), a partially convex spherical surface (), and end faces (); and an outer layer () formed integrally with the partially convex spherical surface () of the spherical annular base member (). The spherical annular base member () includes a reinforcing member () made from a compressed metal wire net () and a heat-resistant material filling meshes of the metal wire net () of the reinforcing member (), integrated with the reinforcing member () in mixed form, and containing expanded graphite and an organic phosphorus compound. The outer layer () includes a heat-resistant material constituted by a heat-resistant sheet member () containing expanded graphite and an organic phosphorus compound, and a reinforcing member constituted by a metal wire net () integrated with the heat-resistant material in mixed formed.

Spherical annular seal member

A shaft coupling mechanismfor an electric power steering apparatus includes a coupling base bodycoupled to a rotating shaft; a coupling base bodycoupled to a steering shaftserving as a rotating shaft; and a pair of rotation transmitting membersandwhich are disposed between the rotating shaftand the steering shaftby means of both coupling base bodiesandand transmit the rotation of the rotating shaftto the steering shaft

A shaft coupling mechanism includes a coupling base body coupled to a rotating shaft; a coupling base body coupled to a steering shaft; rotation transmitting members which are disposed between the rotating shaft and the steering shaft through the both coupling base bodies and transmit the rotation of the rotating shaft in an R direction to the steering shaft; an intermediate interposed member disposed between the rotation transmitting members; and a coupling means for coupling the rotation transmitting members to each other.

A sliding bearing for a steering column includes: a cylindrical bearing body; flat surfaces formed integrally on an inner peripheral surface of the bearing body; first slits extending from one end face of the bearing body to this side of the other end face of the bearing body; second slits extending from this side of the other end face of the bearing body to the one end face of the bearing body; grooves formed in an outer peripheral surface of the bearing body; and elastic rings which are respectively fitted in the grooves in such a manner as to project from the outer peripheral surface of the bearing body and to reduce the diameter of the bearing body.

Sliding bearing and bearing mechanism having the same

A spherical annular seal member () has a seal body () in which a heat-resistant material () and a reinforcing member () made of a metal wire have been compressed to fill meshes of the metal wire net of the reinforcing member () with the heat-resistant material () such that the heat-resistant material () and the reinforcing member () are integrally formed in mixed form. The seal body () has a cylindrical inner peripheral surface () defining a through hole (); an outer peripheral surface () constituted by a partially convex spherical surface (); and annular end faces () respectively provided on a large-diameter side and a small-diameter side of the partially convex spherical surface (). In the seal body (), the reinforcing member () and the heat-resistant material () are respectively contained at a rate of 15 to 80 wt. % and at a rate of 20 to 85 wt. %. The heat-resistant material () in the seal body () has a density of 1.20 g/cmto 2.00 g/cm.

A spherical annular seal memberhas a cylindrical inner surfacedefining a through holein a central portion thereof, an outer surfaceformed in the shape of a partially convex spherical surface, and an annular end faceon a large-diameter side of the outer surface. In its inner portion extending from the cylindrical inner surfaceto the outer surfaceformed in the shape of the partially convex spherical surface, the spherical annular seal memberhas a reinforcing membermade from a compressed metal wire net, as well as a heat-resistant material, which contains expanded graphite, phosphorus pentoxide, and a phosphate, fills meshes of the metal wire netof the reinforcing member, and is compressed in such a manner as to be formed integrally with the reinforcing memberin mixed form. The outer surfaceformed in the shape of the partially convex spherical surface is formed into a smooth surface where an outer surface layer of the heat-resistant material containing expanded graphite, phosphorus pentoxide, and the phosphate and the reinforcing membermade from the metal wire netand formed integrally with the outer surface layer in mixed form are exposed.

In the inner portion of a spherical annular seal member (55) extending from a cylindrical inner surface (52) to an outer surface (53) formed in the shape of a partially convex spherical surface, a heat-resistant sheet member (3) having a heat-resistant coating (2) on overall surfaces of a heat-resistant sheet and a reinforcing member (9) constituted by a metal wire net (8) are compressed and intertwined with each other, and are thus arranged to be provided with structural integrality. The outer surface (53) formed in the shape of the partially convex spherical surface is constituted by an exposed surface of an outer surface layer (56) formed of the heat-resistant coating (2), and the reinforcing member (9) constituted by the metal wire net (8) formed integrally with the outer surface layer (56) is disposed in the outer surface layer (56). The outer surface (53) formed in the shape of the partially convex spherical surface, where the outer surface layer (56) and the reinforcing member (9) constituted by the metal wire net (8) formed integrally with the outer surface layer (56) in mixed form are exposed, is formed into a smooth surface.

Growing community of inventors

Kanagawa, Japan

Shuichi Kubota