Mitsubishi Electric Corporation

Bridgestone Corporation

Nec Corporation

Henkel Ag & Company, Kgaa

Hiroyuki Matsuo

Yoshihito Asao

Sachiko Kawasaki

Akihiro Yamamura

Akihiko Mori

Shuichi Tamura

Koji Tamura

Yasukazu Nishimura

Masatsugu Nakano

Shinichi Ito

Yu Hirotani

Yu Kawano

Takanori Ichikawa

Issei Doi

Toyoaki Udo

Shoichiro Nishitani

Tatsunori Doda

Hirokazu Nagano

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

A non-phosphorus chemical conversion treatment agent and treatment liquid for plastic working are provided, with reduced environmental impact, which are able to form films that are excellent in lubricity and corrosion resistance after plastic working by achieving large film thicknesses even in a system containing a salt of molybdic acid as its main constituent. An exemplary non-phosphorus chemical conversion treatment agent for plastic working is an agent containing a molybdic acid component (A), an acid component (B), and an aqueous medium (C), which is characterized in that the (B) comprises at least an organic acid component (B1) having at least one group selected from a carboxyl group and a phenolic hydroxyl group.

Non-phosphorus chemical conversion treatment agent and treatment liquid for plastic working, chemical conversion film, and metal material with chemical conversion film

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.

In an armature coil according to the present invention and, more particularly, in an armature coil including a plurality of coil conductors wound around a plurality of slots which are formed in a stator core and opened on the radially inner side, the circumferential width of the plurality of the coil conductors is 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.

Armature coil and method of manufacturing the same

A stator core includes an inner ring core composed of a plurality of teeth arranged in the circumferential direction and a connection portion connecting inner circumferential portions of the plurality of teeth; and an outer ring core to be joined to an outer circumferential surface of the inner ring core. Slots of the stator core each have a circumferential direction width (a) on an inner circumference side smaller than a circumferential direction width (b) on an outer circumference side. A stator coil composed of conductive coils including a plurality of slot accommodated portions and a plurality of coil end portions connecting the slot accommodated portions is inserted and placed in the slots from an outer side in the radial direction of the inner ring core.

Method for manufacturing a rotary electric machine

Provided is a steel cord for reinforcing rubber articles which, when applied to a belt of a tire, can attain lightweight without reducing the durability of the tire, and in particular, to a steel cord for reinforcing rubber articles in which the properties of a treat after rubberizing are excellent and a pneumatic radial tire using the same. Also provided is a steel cord for reinforcing rubber articles comprising a core formed by arranging two core filamentsin parallel without being twisted together, and N (2&#x2266;N&#x2266;4) sheath filamentswhich are twisted together around the core. Letting the diameter of the core filamentbe d1, and the diameter of the sheath filamentbe d2, d1&#x3e;d2.

Steel cord for rubber article reinforcement and pneumatic radial tire using same

An object of the present invention is to make it possible to provide a cord, in particular, a cord for reinforcing a rubber article in which rubber permeation properties are improved by coating filaments as constituents of the cord with rubber in a reliable and stable manner. The cord of the present invention is produced by, when the metal filament is guided to an extruder and extruded together with rubber from a mouthpiece of the extruder so that the metal filament is coated with the rubber, juxtaposing plural metal filaments in the mouthpiece and extruding the metal filaments together with rubber.

Method of coating metal filament with rubber, method of producing cord, cord, rubber coating apparatus and cord producing apparatus

A logic integrated circuit comprises a logic circuit, an input-stage flip-flop connected to the input of the logic circuit and an output-stage flip-flop connected to the output of the logic circuit. Each of the input- and output-stage flip-flops is responsive to a clock pulse to change their output logic states depending on their input logic states, so that an output pulse generated by each of the flip-flops has a duration which is determined exclusively by the interval between successive clock pulses.

Growing community of inventors

Tokyo, Japan

Hiroyuki Matsuo