Patents Assigned to Mitsubishi Denki Kabushiki Kaisha
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Patent number: 7859726Abstract: An image reading apparatus includes: a transporting unit that transports an irradiated member having a light transmissive portion including irregularities; a light source that emits light, which irradiates the irradiated member, and the light source is placed on a one side with respect to the irradiated member and inclined by a predetermined angle with respect to a vertical plane that is perpendicular to the irradiated member; a lens that is placed on an another side with respect to the irradiated member and converges scattered light that is scattered by the irregularities; and a sensor that receives the scattered light converged by the lens.Type: GrantFiled: June 28, 2006Date of Patent: December 28, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Takafumi Endo, Shigeru Toyota
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Patent number: 7859079Abstract: The present invention relates to a power semiconductor device comprising a switching power semiconductor element, and a free wheeling diode in anti-parallel connection to the switching power semiconductor element. The power semiconductor is characterized in that a reverse electrode of the switching power semiconductor element and a reverse electrode of the free wheeling diode are bonded and mounted on a circuit pattern formed on the main surface of the first substrate, and that a circuit pattern, which is so formed on the main surface of the second substrate as to oppose a surface electrode of the switching power semiconductor element and a surface electrode of the free wheeling diode, is connected to the surface electrodes of the switching power semiconductor element and the free wheeling diode through connective conductors to be soldered, respectively.Type: GrantFiled: April 21, 2009Date of Patent: December 28, 2010Assignees: Mitsubishi Denki Kabushiki Kaisha, Alstom Transport SAInventors: Makoto Kondou, Kiyoshi Arai, Jose Saiz, Pierre Solomalala, Emmanuel Dutarde, Benoit Boursat, Philippe Lasserre
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Patent number: 7860108Abstract: There is disclosed a method of transferring input data packets from an upper layer to a lower layer of a stack of communication protocol layers, wherein the lower layer supports variable sized packets. One input data packet is received from the upper layer. This input data packet is segmented into several data segments the size of which is selected in a list of a given number N of predetermined segment size values. Signalling information is added to each data segment to form output data packets, which is delivered to a lower layer. Selection of the segment size value is performed according to an algorithm which minimizes the overall ineffective data and/or the overall signalling information. Thus, the transmission overhead generated by the segmentation scheme is reduced.Type: GrantFiled: October 20, 2004Date of Patent: December 28, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Christophe Mangin, Romain Rollet
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Patent number: 7854300Abstract: An elevator hall display device. A destination floor registration device includes destination buttons and assigned car display panels. An elevator group supervisory controller includes a hall destination call registration section that registers a hall destination call corresponding to an operation of a destination button, an assigned car decision section that decides an assigned car to respond to the hall destination call, an assigned car display mode controller that sets a display mode of the assigned car, and an assigned car display that makes the assigned car displayed on an assigned car display panel in the set display mode. The assigned car display mode controller sets the assigned car display to a first display mode until a predetermined time elapses from start of display of the assigned car on the assigned car display panel, and sets the display of the assigned car to a second display mode after the predetermined time elapses.Type: GrantFiled: December 21, 2004Date of Patent: December 21, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Hidenobu Nakashima
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Patent number: 7850144Abstract: An elevator hoist apparatus includes a stationary frame member, a main shaft, a stationary element disposed to said stationary frame member, a rotary frame member supported on said main shaft and extending in a radial direction in axial opposition to said stationary frame member, a rotary element disposed to said rotary frame member in opposition to said stationary member, a brake unit including a brake portion extending through an opening in said stationary frame member, and a rope sheave disposed to said rotary frame member for rotation therewith. The brake unit includes a brake portion disposed in a hollow portion of the stationary frame member of the stationary member and extending through the opening portion and disposed to the inner circumference of the stationary frame member or the rotary frame member. The magnetic path for the brake unit extends through one portion of the rotary frame member or the stationary frame member. Small-size and high performance are realized.Type: GrantFiled: August 5, 2003Date of Patent: December 14, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Naoki Hashiguchi
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Patent number: 7851823Abstract: A transmitted light absorption/recombination layer, a barrier layer, a wavelength selection/absorption layer, and an InP window layer having a p-type region are supported by an n-type substrate and arranged in that order. Light with a wavelength of 1.3 ?m reaches the wavelength selection/absorption layer through the InP window layer. Then, the light is absorbed by the wavelength selection/absorption layer and drawn from the device as an electric current signal. Light with a wavelength of 1.55 ?m reaches the transmitted light absorption/recombination layer through the barrier layer. Then, the light is absorbed by the transmitted light absorption/recombination layer, generating electrons and holes. These electrons and holes recombine with each other and, hence, disappear.Type: GrantFiled: April 7, 2008Date of Patent: December 14, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Eitaro Ishimura
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Patent number: 7852023Abstract: The object of the present invention is to provide an electric power steering controller in which a redundant system equal to that with a relay is configured, without incurring the upsizing or deterioration in reliability, of the controller. An electric power steering controller involving the present invention is provided with a motor for providing a steering system with output torque; a motor driving circuit for driving the motor; a microcontroller for calculating a current to be applied to the motor; a gate driver for driving a plurality of switching devices constituting a bridge circuit, based on the result of the calculation by the microcontroller; and a switching portion for cutting off the power supply to the gate driver.Type: GrantFiled: July 15, 2005Date of Patent: December 14, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Takayuki Kifuku, Kazuto Kusakabe
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Patent number: 7849972Abstract: In an emergency brake device for an elevator, a pair of pivot levers are pivotably provided to a car. Each pivot member is provided with each of a plurality of wedges that can be brought into and out of contact with a car guide rail as the pivot member pivots. A connecting member is connected between the pivot levers. The car is mounted with an electromagnetic actuator for displacing the connecting member in a reciprocating manner so as to pivot the pivot levers in a direction for bringing each wedge into and out of contact with the car guide rail. The electrical actuator is actuated when inputted with an actuating signal from an output portion mounted in a control panel.Type: GrantFiled: May 25, 2004Date of Patent: December 14, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Tsunehiro Higashinaka
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Patent number: 7853787Abstract: A peripheral device for a programmable logic controller includes an encrypter, an external storage that stores peripheral authentication data that has been encrypted, an internal storage that stores peripheral device authentication data that has been encrypted, a decrypter, and a verifier that determines whether or not use of the peripheral device for the programmable logic controller is authorized by checking the peripheral device authentication data read out and decrypted from the external storage, against the peripheral device authentication data read out and decrypted from the internal storage. If the verifier authorizes use of the peripheral device, encrypted authentication data is read out of the internal or external storage, decrypted, and transmitted to a PC for authorizing reading and writing of data in the PC.Type: GrantFiled: January 11, 2005Date of Patent: December 14, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Shin Hasegawa
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Patent number: 7849584Abstract: In a combination of, for example, a rotor having eight magnetic poles and a stator having twelve slots and pulsating components of permeance, which generate a sinusoidal cogging torque having maxima of the same number as the number of poles of the rotor, pressurizing parts arranged in predetermined positions, applying a force at an outer periphery of the stator and directed inwardly cancels the pulsating components of the cogging torque.Type: GrantFiled: November 12, 2008Date of Patent: December 14, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yukari Toide, Akhiro Daikoku, Masatsugu Nakano, Hideaki Arita, Shinichi Yamaguchi, Moriyuki Hazeyama, Takashi Yoshioka, Tomohiro Kikuchi, Katsumi Hayami, Takashi Miyazaki
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Patent number: 7852410Abstract: A deepest part searching means divides each frame of a background image into a plurality of blocks, and searches for a candidate for the deepest part of the background image which is located the deepest in a direction of the depth of the background image, a deepest part determining means selects one of the searched candidate for the deepest part of the background image and predetermined candidates for the deepest part of the background image so as to determine the deepest part of the background image, a superimposing determining means determines a superimposing method of superimposing each of the series of images to be superimposed on the background image, and a superimposing processing means superimposes the series of images to be superimposed on the background image on a frame-by-frame basis according to the determined superimposing method.Type: GrantFiled: June 19, 2006Date of Patent: December 14, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Tooru Ishii, Atsushi Tanaka, Yasunori Tsubaki
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Patent number: 7853209Abstract: A mobile communication station is provided with a type information registration unit (11) for registering type information indicating a type of data, which an application installed in an external device can use, therein. The mobile communication station transmits the type information registered in the type information registration unit (11) to a base station apparatus, receives data, which the application installed in the external device can use, from the base station apparatus, and then transfers the received data to the external device.Type: GrantFiled: November 22, 2004Date of Patent: December 14, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yukio Goto, Masahiko Ikawa, Hiroyuki Kumazawa, Sadatoshi Nakamura
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Patent number: 7847463Abstract: A projected shape of permanent magnets is contained within a plane of projection formed by adjacent claw-shaped magnetic poles overlapping when the claw-shaped magnetic poles are viewed in a direction of rotation of a rotor, and is generally similar in shape to a shape of the plane of projection.Type: GrantFiled: June 20, 2008Date of Patent: December 7, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Masahiko Fujita, Haruyuki Kometani, Toshiyuki Yoshizawa, Yoshihito Asao
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Patent number: 7848084Abstract: A gas-insulated equipment such as a gas-insulated switchgear provided according to the invention can efficiently improve dielectric strength of an entire electrode system considering electric field distribution of the electrodes and conductors and improving insulation coordination so that miniaturization of the entire device can be achieved. The gas-insulated switchgear includes insulating gas sealed within an earth metal container and an insulating spacer insulating and supporting high-voltage receiving portions. Surfaces of shielding electrodes having a larger diameter than that of high-voltage conductors are covered with thick dielectric coatings, and surfaces of the high-voltage conductors are covered with thin dielectric coatings.Type: GrantFiled: March 10, 2010Date of Patent: December 7, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Hiroyuki Hama, Hitoshi Sadakuni, Takuya Otsuka, Kiyoshi Inami, Eiichi Nagao
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Patent number: 7842962Abstract: A P-type electrode material is provided on a top surface of a P-type contact layer. The P-type electrode material is formed with an AuGa film, an Au film, a Pt film, and an Au film. The AuGa film is provided on the P-type contact layer. The Au film is provided on the AuGa film. The Pt film is provided on the Au film. The Au film is provided on the Pt film. With this, a nitride semiconductor device having a P-type electrode which can decrease a contact resistance between a P-type contact layer and the P-type electrode is obtained.Type: GrantFiled: November 16, 2005Date of Patent: November 30, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Katsuomi Shiozawa, Toshiyuki Oishi, Kazushige Kawasaki, Yuji Abe
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Patent number: 7843869Abstract: A roadside-to-vehicle communication system for providing a mobile station with application service by utilizing roadside-to-vehicle communication implemented between the mobile station that travels on a road and a base station system installed along the road provides non-network-type communication protocols that can implement diverse application services, even when the mobile station is moving. The roadside-to-vehicle communication system includes transfer service processing entities for implementing data transfer among applications and transaction management entities that have undelivered data resenders, data send/receive for each message, and a message segmenter/assembler that provides unidirectional data transmission and request-response transaction services.Type: GrantFiled: October 1, 2004Date of Patent: November 30, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Masahiko Ikawa, Yukio Goto, Hiroyuki Kumazawa, Yoshiaki Tsuda
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Patent number: 7841387Abstract: A pump-free water-cooling system includes a heat-exchange circulating solution container containing heat-exchange circulating solution and vapor of the circulating solution, at least one solution outlet to discharge the circulating solution from the container, and a gas-liquid two-phase fluid inlet to charge into the container gas-liquid two-phase fluid composed of the circulating solution. The system also includes a circulating-solution transporting route in which a first transportation route is linked to a second transportation route which is linked to a third transportation route. A sensible-heat-emitting heat exchanger is provided along the first transportation route. The first transportation route is linked with the solution outlet. Heat exchange is carried out along the second transportation route at least between circulating solution therein and the circulating solution in the container. A heating heat exchanger is provided along the third transportation route.Type: GrantFiled: May 21, 2008Date of Patent: November 30, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Shigetoshi Ippoushi, Nobuaki Uehara, Akira Yamada, Tetsuro Ogushi
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Patent number: 7837012Abstract: The present invention provides an elevator controller including: a main control unit for controlling running of an elevator, in which the main control unit predictively calculates a continuous temperature state of a predetermined componential equipment of the elevator and performs an operation control of the elevator based on the predicted temperature state such that the componential equipment is not overloaded. Accordingly, a temperature rise in the componential equipment is suppressed, thereby enabling to prevent the elevator from becoming inoperable.Type: GrantFiled: September 29, 2003Date of Patent: November 23, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Masaya Sakai, Takaharu Ueda
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Patent number: 7840081Abstract: A method of representing at least one image comprises deriving at least one descriptor based on color information and color interrelation information for at least one region of the image, the descriptor having at least one descriptor element, derived using values of pixels in said region, wherein at least one descriptor element for a region is derived using a non-wavelet transform. The representations may be used for image comparisons.Type: GrantFiled: September 22, 2005Date of Patent: November 23, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Stavros Paschalakis, Miroslaw Bober
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Patent number: RE41997Abstract: A mobile communication terminal includes timer for detecting the time of an incoming call, a caller number registration table for storing caller numbers, answer message ID numbers and time-dependent switching codes in relation to each other, the time-dependent control codes designating callers for whom answer messages are switched depending on a time zone in which the call is made. There is thus provided a capability of selecting an answer message for a caller based on the caller number included in the incoming call signal and switching between answer messages based on the time of call incoming detected by the timer.Type: GrantFiled: December 10, 2004Date of Patent: December 14, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Masaki Kinoshita