Oki Data Corporation

Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Oki Electric Industry Co., Ltd.

National Institute of Information and Communications Technology, Incorporated

Communications Research Laboratory, Independent Administrative Institution

Akihiro Yamamura

Shogo Okamoto

Masaya Inoue

Shuichi Tamura

Masashi Nakamura

Kazuhisa Takashima

Shinichiro Yoshida

Satoru Akutsu

Akihiko Mori

Atsushi Sakaue

Tatsuro Hino

Sachiko Kawasaki

Koji Tamura

Hiroyuki Matsuo

Yoshiki Kuwahara

Yasukazu Nishimura

Issei Doi

Yoshihito Asao

Shinji Nishimura

Akira Hashimoto

Katsuyuki Ito

Ryuichi Kitora

Masayuki Miyaoka

Yuki Yamamoto

Hiroyuki Akita

Masatsugu Nakano

Tsuyoshi Takahashi

Shinichi Ito

Yuji Nakahara

Keiichi Komurasaki

Hironori Tsuiki

Yukiyoshi Oda

Toshihiro Matsunaga

Toshiharu Sato

Ken Nozawa

Masahiro Kawano

Yoshiaki Kitta

Naoki Ohashi

Tadashi Murakami

Akihiko Morikawa

Katsuhiko Kusumoto

Shoichiro Nishitani

Masayasu Miyajima

Masamitsu Nagamine

Koichi Ojima

Hirohisa Yokota

Shinkichi Sawa

Ken Nishikawa

Kazuo Matsunaga

Shinsuke Hemmi

Tetsunao Takaki

Tetsuya Yokogawa

Yoshikazu Ugai

Kazunori Muto

Yutaro Shirai

Hirokazu Ishizuka

Akifumi Miyake

Yasuhiro Hayasaka

Keisuke Murase

Ren Nakamichi

Michiya Yasui

Eisuke Kuroki

Hidekazu Satake

Akira Izawa

Hiromu Nonoguchi

Yoshinobu Sugimoto

Shinji Sano

Kota Hirohashi

Akiyoshi Kariyama

Naomi Kikuchi

Sho Nakano

Hiroki Maeda

Toshiyuki Sugai

Haruki Umazume

Hidechika Fujii

The present invention is provided with: an insulation holder formed of a thermoplastic resin material and having a first opening; a wire connection ring formed of a thermoplastic resin material and having a second opening; and a joining component inserted astride in the first opening and the second opening, the joining component being formed of a metal material having a higher melting point than those of the thermoplastic resin materials, the joining component having a higher stiffness than those of the insulation holder and the wire connection ring, wherein a welded part is formed by welding in at least a part of an area where each of the insulation holder and the wire connection ring has contact with the joining component.

Joining body

A method of manufacturing an armature coil includes steps of arranging a plurality of coil conductors of the armature coil between an end metal die and a back portion metal die on a lower metal die; pressing, with the upper metal die in a pressing direction, the plurality of the coil conductors arranged between the end metal die and the back portion metal die on the lower metal die; and removing coil conductors that become formed in a convex shape and a concave shape from the lower metal die. The upper metal die may be provided with an inclined portion on a lower metal die side of the upper metal die, and the upper metal die may be configured to be pressed such that a space is formed by the dies, the space having a width that gets gradually narrower.

Method of manufacturing armature coil

The lens unit includes a first lens array including a plurality of first lens elements each of which has a first optical axis and which are arranged in an arrangement direction perpendicular to the first optical axis. A second lens array includes a plurality of second lens elements each of which has a second optical axis and which are arranged in the arrangement direction while facing the first lens elements. The second lens array is in a positional relationship relative to the first lens array such that the second lens array is rotated about a virtual line perpendicular to both the first optical axis and the arrangement direction as the rotational axis by 180 degrees. The optical axes of the lens elements located at the substantially centers of the lens arrays in the arrangement direction are arranged to substantially coincide with each other.

Lens unit, exposure device, reading head, image forming apparatus, and image reading apparatus

A lens unit includes a first lens array including first lenses arranged in at least two lines; a second lens array including second lenses arranged in an arrangement relationship corresponding to the first lens array, the second lenses respectively facing the first lenses, the second lens array being arranged to face the first lens array so that each pair of the first and second lenses has a common optical axis; and a first light blocking member arranged between the first lens array and the second lens array and having first openings each being arranged to face the pair of the first and second lenses in a direction of the optical axis. An interval PXL from an array center position between two adjacent lines to the optical axis and an interval PXS from the array center position to an opening center of the first opening satisfy PXL&#x3c;PXS.

Lens unit, exposure device, LED head, image forming apparatus, and scanning device

This invention is concerning a rotary electric machine, this electric motorbeing provided with an inner cylinder, a rotorprovided so as to be rotatable inside the inner cylinder, a statorfixed to the inner cylinderand separated via a gap from an outer periphery of the rotor, and an outer cylinderthat covers an entire periphery of the inner cylinderand forms a space, which serves as a coolant passage, in conjunction with the inner cylinder, wherein both ends of the inner cylinderand the outer cylinderin an axial direction are fixed to each other by cylinder welding portionsformed by welding. Accordingly, a rotary electric machine that is small and light can be obtained at low cost.

Rotary electric machine

Provided is in an armature coil formed by arranging a plurality of coil conductors on a lower metal die having a tapered groove that is narrower toward an inner side. The coils are pressed using an upper metal die having an end portion narrower than the width of the groove. The coils are formed in a substantially trapezoidal shape which gets narrower toward the radially inner side and the cross-sectional areas of the plurality of the coil conductors in the slot are each substantially the same and the circumferential width thereof is formed narrower as the coil conductor is arranged toward the radially inner side; and one coil conductor is formed in a convex shape and another coil conductor is formed in a concave shape along the convex shape.

Provided are a lens array, a lens unit, an exposure device, an LED head, and an image forming apparatus. The lens array includes a plurality of lenses arranged so as to form an array. Each of the plurality of lenses is configured so that a contour focal length which is a focal length of a ray incident on a first position separate from an optical axis is longer than a paraxial focal length which is a focal length of a ray incident on a second position in the vicinity of the optical axis.

Lens array, lens unit, exposure device, LED head, and image forming apparatus

Joining method, joining body, stator for dynamo-electric machine, and method for manufacturing stator for dynamo-electric machine

The manufacturing method for a rotor includes steps of: applying an adhesive to a first surface of a magnet material member that becomes a permanent magnet after magnetization, the adhesive being applied such that a total thickness of the magnet material member and the adhesive is less than a radial width of a magnet insertion aperture; disposing a rotor core such that an axial direction thereof is horizontal, and inserting the magnet material member into a magnet insertion aperture that is positioned vertically uppermost among the magnet insertion apertures so as to orient the adhesive vertically upward; positioning each of the magnet material members by pressing the magnet material member against an inner wall surface on an outer circumferential side of the magnet insertion aperture after inserting the magnet material member into each of the magnet insertion apertures; and curing the adhesive after the magnet material member is positioned.

Manufacturing method for rotor for rotary electric machine

While lamination of steel sheets to be included in a stator core having a plurality of tooth portions is performed through swaging at yoke portions and through swaging at tooth portions, the stator core is formed in such a way as to include the tooth portion having a portion that is pressed into another steel sheet through swaging and the tooth portion having no portion that is pressed into another steel sheet through swaging.

Rotating electric machine including swaging portions for steel sheets of stator core

A lens unit according to one or more embodiments includes a lens plate member including a plurality of lenses arranged in a first direction; and a light block member provided facing the lens plate member and including a plurality of opening portions arranged in the first direction, the opening portions being provided in one-to-one correspondence with the lenses. A first positioning portion is formed at a first position in first direction of each of the lens plate member and the light block member. The first positioning portion of the lens plate member and the first positioning portion of the light block member align with each other and continuously extend in a second direction along an optical axis direction of the lenses.

Lens unit, LED head, exposure device, and image formation apparatus

A lens array includes a plurality of lenses arranged in at least two rows parallel with each other. The plurality of lenses are arranged in a first direction in each row. Each of the plurality of lenses allows light to pass in a second direction. An arrangement center is defined at a center position between the two rows in a third direction perpendicular to both of the first direction and the second direction. Each of the plurality of lenses includes an incident surface and an emission surface. A surface apex of the emission surface is displaced with respect to a surface apex of the incident surface in a direction away from the arrangement center in the third direction.

Lens array having lenses arranged in rows, lens unit, exposure device, LED head, and image forming apparatus

An iron core member has: first divided yoke portions; second divided yoke portions alternately arranged with the first divided yoke portions; a first tooth portion extending from one circumferential end of each first divided yoke portion, a second tooth portion extending from the other circumferential end; a third tooth portion extending from one circumferential end of the second divided yoke portion on the second tooth portion side, and a fourth tooth portion extending from the other circumferential end. A tooth end portion of the first tooth portion and a tooth end portion of the adjacent fourth tooth portion are integrally joined at a first tooth end joint portion, and a tooth end portion of the second tooth portion and a tooth end portion of the adjacent third tooth portion are integrally joined at a second tooth end joint portion, thereby providing one continuous sheet of the core member.

Iron core member with divided yoke and tooth portions with V-shaped end joint portions

A stator includes multiple bus bars formed in an annular shape and laminated in a radial direction and an insulation member covering both radial side surfaces and both axial end faces of each bus bar, and the insulation member contains a sheet-like insulation member covering both radial side surfaces and the axial end face of each bus bar.

Rotating electrical machine equipped with a stator having a bus bar wrapped with insulation sheet/layers

A plurality of coil groups are each configured by connecting a tip portion of a first conductor terminal and a tip portion of a second conductor terminal that is subject to connection therewith using a connecting conductor, and the connecting conductors include: a pair of connecting portions that are respectively disposed so as to contact the tip portion of the first conductor terminal and the tip portion of the second conductor terminal that is subject to connection therewith in a circumferential direction of the tip portions so as to be parallel to the tip portions, and that are joined together with the tip portions; and a linking portion that links the pair of connecting portions.

Rotary electric machine stator

Growing community of inventors

Tokyo, Japan

Akihiro Yamamura