Fujitsu Corporation

Kabushiki Kaisha Toshiba

Nhk Spring Co., Ltd.

Kabushiki Kaisha Bridgestone

Koji Matsuyama

Masahiko Shimizu

Yasuo Kabata

Hiromichi Ito

Hiroaki Koinuma

Kazuhiro Saito

Mikio Kakiuchi

Takeshi Inoue

Yomei Yoshioka

Toshio Kitajima

Hideki Chiba

Ryoji Nagano

Hajime Hamada

Yasuyuki Oishi

Takashi Dateki

Tomonori Sato

Hideto Furukawa

Masafumi Fujita

Yoshihiro Taniyama

Jun Shirai

Yoji Sugawara

Kaname Hirai

Kazuo Nagatani

Akira Ito

Tokuro Kubo

Shunji Miyazaki

Katsuya Yamashita

Michiharu Nakamura

Tadashi Tokumasu

Masaaki Fujii

Morihiko Minowa

Daisuke Ogawa

Yoshihiko Asano

Kensuke Sawada

Hidenobu Fukumasa

Mikio Takabatake

Noriyuki Kawaguchi

Hitoshi Katayama

Yoshiharu Tozawa

Yuuichiro Gunji

Yoshiyuki Shimoda

Youji Sugawara

Takeo Urita

A lock release lever attachment structure includes: a case that includes a case body, an upper portion of which opens as a first opening, and a first flange, a slit being formed to penetrate through at least a portion of the first flange in a seat up-down direction along a peripheral edge of the first opening; an operation lever that releases a locked state of a seatback; and a cover that includes a cover body, an upper portion of which opens as a second opening, and a second flange, the first and second openings being placed in communication by inserting the cover body into the case body through the first opening and fixing the cover body inside the case body, and an edge of a covering material that covers a surface of the seatback being inserted into the slit and gripped by the first and the second flanges.

Lock release lever attachment structure

A lock release mechanism comprising: an operation lever provided at a shoulder of a seatback of a vehicle seat, the operation lever being supported to be tiltable in a seat front-and-rear direction about an axis along a seat width direction; a rod, wherein the rod comprises a coupled portion, a main body portion, and a projecting portion; and a width direction limiting portion that limits movement of the rod in the seat width direction relative to the operation lever.

Lock release mechanism

A wire drawing apparatus () is used in a final drawing process to ensure adequate initial performance of adhesion between brass-plated steel wire and rubber without a drop in productivity. At least one of the die () disposed in the most downstream position, the die () disposed in the second most downstream position, and the die () disposed in the third most downstream position is a drawing die having a friction coefficient &#x3bc; of 0.12 to 0.41 with the brass-plated steel wire. The other dies () are drawing dies each having a friction coefficient &#x3bc; of 0.1 or below. By using these drawing dies, brass-plated steel wire () is drawn, and a noncrystalline portion of high lattice defect density is formed on the surface of the crystalline portion of the brass-plating layer of the brass-plated steel wire ().

Method for manufacturing brass-plated steel wire and apparatus for drawing brass-plated steel wire

A radio communication apparatus including: an antenna configured to receive a frame including reference signals and including other signals corresponding to radio resources to which channels are mapped, and a processor configured to acquire degree of usage of the radio resource, to calculate a reception quality of the reference signals, and to adjust the reception quality in accordance with the degree.

Radio communication apparatus, radio communication system and radio communication method

According to one embodiment, there is provided a high pressure bushing arranged through by penetrating a stator frame of a rotating electrical machine in which a cooling gas is sealed. At least a communicating hole is provided in the hollow connecting conductor and at least a reflux hole is provided in the gas circulation pipe, such that the cooling gas flows in both of the first gap and the second gap, passes through an inner side of the gas circulation pipe, and is discharged to the machine inner side.

High pressure bushing of rotating electrical machine and rotating electrical machine

According to an embodiment, radially extending inner spacers are provided in a stator core at a distance from each other in the circumferential direction at intervals between a prescribed number of stacked magnetic steel plates, and ventilation ducts for cooling gas flow are formed in the radial direction. The perimeter of each ventilation duct is defined by the inner spacers and a magnetic steel plate separated by the inner spacers. The cooling gas, which flows in the rotation direction, is split laterally to both sides of a rotor coil and directed toward the outer circumference. Portions of the shoulder parts of a wedge are cut off such that the width of the shoulder parts of the wedge at positions corresponding to the ventilation ducts matches the slot width.

Rotating electrical machine and stator thereof

A method for removing a crack in an electromechanical rotor, including: forming a plurality of slots on a periphery of a core portion of an electromechanical rotor along an axial direction thereof; inserting coils into the slots, respectively; forming a plurality of wedges for maintaining the coils in the slots, respectively; and forming a cut hole at at least a part of the core portion from an outer surface of the core portion toward the side of a center axis thereof so as to contain a crack along a circumferential direction thereof.

Method for removing a crack in an electromechanical rotor

An A/D converted and inputted signal is stored in a memory. A sliding correlator sequentially reads the signal stored in the memory and despreads this signal. A despreading timing is adjusted and then the candidate for a despreading code is outputted from a code generation circuit. The despreading code outputted at a predetermined timing is used for obtaining a correlation value of signals outputted from the memory, using the sliding correlator. Thus, by storing signals in the memory, fluctuation of a correlation value caused by fading does not occur while specifying a code or detecting a despreading timing.

Detection device of a spreading code and a timing, and a method thereof

A rotor of a rotating electric machine includes a cylindrical rotor core, a plurality of coil slots provided on an outer periphery of the rotor core along a rotor axis direction, rotor coils disposed in the coil slots by laminating a plurality of field conductors through an insulation material, a rotor wedge disposed at an opening end portion of the coil slot so as to support the rotor coil, a coil ventilation duct formed in the coil slot so as to pass through the rotor coils, the rotor wedge and the insulation material, and sub-slots provided at bottom portions of the coil slots so as to be communicated with rotor core ends and the coil ventilation ducts. In such a rotor of a rotating electric machine, the coil slot, the sub-slots and the coil ventilation duct constitute a cooling gas channel for distributing a cooling gas to thereby cool the rotor coils. A depth in a diameter direction of each sub-slot from the rotor coil end to a nearest coil ventilation duct is larger than a depth of the sub-slot at a portion near a center of the rotor core.

Rotating electric machine with rotor cooling slots

There is provided a flaw detection testing method applied to a slot dovetail portion of a turbine generator rotor shaft. The flaw detection testing method includes an angle determining step of determining a slot angle of the slot dovetail portion using a variable-angle ultrasonic probe, a flaw detection performing step of, on the basis of a determination result in the angle determining step, using an angle ultrasonic probe or a phased array probe to perform flaw detection to detect a flaw in the slot dovetail portion, and a flaw depth measuring step of, when the flaw is detected in the flaw detection performing step, using an angle ultrasonic probe to measure a depth of the flaw from a surface of the slot dovetail portion.

Flaw detection testing method

A wireless communication device capable of restraining dispersion of a propagation environment index and thereby improving throughput. A reception controller receives a pilot signal, measures a propagation environment and detects a phase change of the pilot signal. A moving average processor obtains a moving average of propagation environment values. An index function setter generates a propagation environment index function indicative of the correspondence between the propagation environment value and a propagation environment index which is a propagation environment quality index. When the detected phase change is greater than a threshold, a slope corrector corrects the slope of the propagation environment index function by using the moving average as a reference point, and a propagation environment index transmitter obtains a propagation environment index corresponding to the measured propagation environment value by using the propagation environment index function whose slope has been corrected, and transmits the obtained index to a base station.

Wireless communication device and method of restraining dispersion of propagation environment index

In an antenna positioning method for a communication device that performs communication using a plurality of antennas positioned on a straight line, the method has a first step of measuring radiation pattern characteristics of each antenna, a second step of detecting a direction in which fluctuation of the radiation pattern characteristics of each antenna is large, and a third step of positioning each antenna in the communication device so that the direction in which the characteristic fluctuation is large matches the straight line direction.

Antenna positioning method and antenna mounting device for communication device, and antenna device

A method for repairing a crack in an electromechanical rotor (), including forming a plurality of slots () on a periphery of a core portion () of an electromechanical rotor () along an axial direction thereof; inserting coils into the slots (), respectively; forming a plurality of wedges for maintaining the coils in the slots (), respectively; and forming a cut hole () at the core portion () from an outer surface of the core portion () so as to remove at least a deeper area of a crack created at the core portion () at a contacting surface between the corresponding wedge and the corresponding slot ().

Method for repairing a crack in an electromechanical rotor, method for preventing crack growth in the same, electromechanical rotor and rotary electrical machine

In a method for removing a crack in an electromechanical rotor, a through-hole penetrating from a side of one of slots adjacent to each other via a rotor core portion to a side of the other slot is formed to include a crack in the rotor core portion occurring to a contact surface with a wedge, in an electromechanical rotor including a plurality of slots formed in an axial direction in an outer peripheral surface of the rotor core portion, a coil housed in the slot, a wedge inserted in an upper portion of the slot to be arranged in the axial direction and holding the coil in the slot, and the crack is removed.

An object of the present invention is to control crack propagation, either by predicting shaft dovetail crack propagation with high accuracy, or by determining operation conditions under which the crack does not extend. The crack propagation prediction system includes an operation processing unit, an interface unit, and a memory unit. The operation processing unit includes a stress calculation unit that calculates the mean stress generated in the shaft dovetail, a factor range calculation unit that calculates the stress intensity factor range for the crack in the shaft dovetail, and a crack propagation amount calculation unit that calculates an amount of the shaft dovetail crack propagation for an arbitrary time period, from the obtained mean stress and the stress intensity factor range, an operation pattern, an operation time, and data on the crack. The stress calculation unit includes as individual calculation units that calculate separately different types of mean stress, a contact surface pressure stress calculation unit, a thermal stress calculation unit, and a residual stress calculation unit, as well as a mean stress calculation unit that sums these mean stresses.

Predicting crack propagation in the shaft dovetail of a generator rotor

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Yokohama, Japan

Koji Matsuyama