Patents Assigned to Mitsubishi Denki Kabushiki Kaisha
  • Patent number: 8385295
    Abstract: Conventionally, if the number of transmission antennas is greater than that of reception antennas, different signals simultaneously transmitted from the transmission antennas cannot be separated from one another at the receiving end, resulting in a significant degradation of received-signal quality. A transmitter and a receiver each have a plurality of antennas. The transmitter transmits a pilot signal. The receiver receives the pilot signal, calculates transmission-related information corresponding to the pilot signal, selects, based on this calculated information, a transmission signal to be used by the transmitter, and notifies the transmitter of the selected signal. The transmitter selects, from the informed transmission signal, transmission antennas and uses the selected antennas to transmit information signals, so that a signal separation can be easily performed at the receiving end.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: February 26, 2013
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yoshitaka Hara, Akinori Taira, Tomoaki Otsuki, Kenji Suto
  • Patent number: 8377339
    Abstract: An apparatus and a method to form a thick coat by an in-liquid pulsed electric discharge treatment, the electrode contains 40 volume % or more metallic material that is not carbonized or is hard to be carbonized.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: February 19, 2013
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Ishikawajima-Harima Heavy Industries Co., Ltd.
    Inventors: Akihiro Goto, Masao Akiyoshi, Hiroyuki Ochiai, Mitsutoshi Watanabe
  • Patent number: 8379758
    Abstract: When transmitting an RF signal for power supply or a pulse signal for data transmission, amplification is made in such a manner that the peak power of the RF signal becomes greater than the peak power of the pulse signal. Thus transmitting the RF signal with the greater peak power enables charging of a capacitor 23 of noncontact wireless communication equipment 2 even if the distance to the noncontact wireless communication equipment 2 is long.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: February 19, 2013
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Noriharu Suematsu, Kouji Tsutsumi, Yasushi Sogabe, Toshihisa Kamemaru, Yoshihiko Konishi, Masataka Otsuka, Ryoji Hayashi, Akinori Taira
  • Patent number: 8371367
    Abstract: A heat sink includes a base having a first surface thermally connected to a heat producing component and a plurality of fins supported by a second surface of the base and arranged in a predetermined direction, each fin having a plurality of through-holes. The base and the plurality of fins are integrally formed from a porous material, for example a lotus-shaped porous material. The heat sink is placed within a duct. The heat sink may have a width of about 10 mm or less.
    Type: Grant
    Filed: August 11, 2005
    Date of Patent: February 12, 2013
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Osaka University
    Inventors: Hiroshi Chiba, Tetsuro Ogushi, Hideo Nakajima
  • Patent number: 8354946
    Abstract: A digital decoding apparatus and method for receiving and decoding a compression-coded digital signal in predetermined transmission units is disclosed.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: January 15, 2013
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shunichi Sekiguchi, Yoshihisa Yamada, Kohtaro Asai
  • Patent number: 8328998
    Abstract: An ozone generating apparatus is provided which includes a pair of electrodes for producing a discharge by the application of an ac voltage therebetween, and at least one dielectric provided between the pair of electrodes. A source gas containing oxygen is provided into a discharge space in which the discharge is produced to generate ozone by the action of the discharge. A surface lying between at least one of the pair of electrodes and the discharge space and in contact with the discharge has a surface resistivity of 104? to 1011?. The source gas provided into the discharge space includes ultrapure oxygen having a purity of not less than 99.9%.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: December 11, 2012
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Noboru Wada, Masaki Kuzumoto, Yasutaka Inanaga
  • Patent number: 8329563
    Abstract: A device and a device manufacturing process. First, a gettering layer is formed on the bottom surface of a silicon substrate. Gates having a MOS structure are then formed on the principal surface of the silicon substrate, and the gettering layer is removed. According to this manufacturing method, the formation of the gates having a MOS structure is performed such that the gettering layer getters dissolved oxygen present in the silicon substrate. This reduces the concentration of dissolved oxygen in the silicon substrate, resulting in improved device characteristics.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: December 11, 2012
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tadaharu Minato, Hidekazu Yamamoto
  • Publication number: 20120304453
    Abstract: 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: Application
    Filed: August 15, 2012
    Publication date: December 6, 2012
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Yukari Toide, Akihiro Daikoku, Masatsugu Nakano, Hideaki Arita, Shinichi Yamaguchi, Moriyuki Hazeyama, Takashi Yoshioka, Tomohiro Kikuchi, Katsumi Hayami, Takashi Miyazaki
  • Patent number: 8324657
    Abstract: A semiconductor device manufacturing apparatus is provided with a drawing pattern printing part having a print head which injects a conductive solvent, an insulative solvent and an interface treatment solution. The print head is formed in such a way that desired circuit drawing pattern can be printed on a wafer based on information on the drawing pattern from a wafer testing part, information on the wafer from a storage part and coordinate information from a chip coordinate recognition part. In a semiconductor device manufacturing method according to the present invention, a semiconductor device is manufactured by using the semiconductor device manufacturing apparatus in such a manner that desired circuits are formed through printing process. In the semiconductor device, pad electrodes and so on are formed in such a way that trimming process can be conducted by printing circuit drawing patterns.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: December 4, 2012
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kazuhiro Shimizu, Hajime Akiyama, Naoki Yasuda
  • Patent number: 8320664
    Abstract: 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: Grant
    Filed: October 27, 2010
    Date of Patent: November 27, 2012
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Stavros Paschalakis, Miroslaw Bober
  • Patent number: 8306334
    Abstract: A method of representing and analysing images comprises producing a plurality of descriptors of an image at one or more scales and for one or more color channels, said descriptors capturing color content and interrelation information within the regions, and associating the descriptors in a plurality of ways based on their characteristics such as scale, color channel, feature semantics, and region, and comparing such representations of images to assess the similarity of images.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: November 6, 2012
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Stavros Paschalakis, Miroslaw Bober
  • Patent number: 8295350
    Abstract: A segmenting section divides an input image into a plurality of segments. A hierarchizing section determines classes of the respective segments according to a predetermined criterion, and produces a class identification signal indicating the classes of the respective segments. A coding section encodes the segmented image signal into code data while changing the value of a coding control parameter for each of the segments in accordance with the class identification signal. Examples of the coding control parameter are a coding time interval and precision of quantization.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: October 23, 2012
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tokumichi Murakami, Kohtaro Asai, Yoshihisa Yamada
  • Patent number: 8290018
    Abstract: The present invention relates to a method for transmitting data Di in a telecommunication system SYST including a first transceiver TXi and a second transceiver RX linked together by means of a communication channel Chi, one of which transceivers being mobile, which method includes: a spreading step for spreading said data Di over a plurality of components Ctj (for j=1 to M), and an equalization step during which each component Ctj (for j=1 to M) is multiplied by an equalization value Wi(j)* representative of communication conditions within the communication channel Chi. According to the invention, the equalization values Wi(j)* are also representative of a Doppler effect generated by movement of the mobile transceiver. The invention enables to significantly compensate for alterations caused to the communication channel Chi by movement of the mobile transceiver.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: October 16, 2012
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: David Mottier, Damien Castelain
  • Patent number: 8277560
    Abstract: A CVD apparatus cleaning method that efficiently removes by-product such as SiO2 or Si3N4 adhered to and deposited on surfaces of an inner wall, an electrode, and the like in a reaction chamber at a film forming step. In the cleaning method the discharged cleaning gas amount is very small, environmental influences such as global warming can be lessened, and cost can be reduced. A CVD apparatus supplying reactive gas into a reaction chamber and forming a deposited film on a surface of a base material provided in the reaction chamber includes an exhaust gas recycling path recycling an exhaust gas reaching the reaction chamber from downstream of a pump on an exhaust path for exhausting a gas from an inner part of the reaction chamber through the pump.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: October 2, 2012
    Assignees: National Institute of Advanced Industrial Science and Technology, Canon Anelva Corporation, Ulvac, Inc., Kanto Denka Kogyo Co., Ltd., Sanyo Electric Co., Ltd., Showa Denko K.K., Sony Corporation, Tokyo Eectron Limited, Hitachi Kokusai Electric Inc., Panasonic Corporation, Mitsubishi Denki Kabushiki Kaisha, Renesas Electronics Corporation
    Inventors: Katsuo Sakai, Seiji Okura, Masaji Sakamura, Kaoru Abe, Hitoshi Murata, Etsuo Wani, Kenji Kameda, Yuki Mitsui, Yutaka Ohira, Taisuke Yonemura, Akira Sekiya
  • Patent number: 8280565
    Abstract: A drive control apparatus for an electric car as can correct a synchronizing frequency without employing beacons, is proposed. A wheel-diameter correction information output means includes wheel-diameter information calculation means for calculating wheel-diameter calculation information expressive of a wheel diameter of an electric car, on the basis of two-phase current information. The wheel-diameter correction information output means also includes selection output means. The selection output means selects a wheel-diameter data output WD1, the wheel-diameter calculation information WD2 based on the wheel-diameter calculation means, or wheel-diameter default information WD0, and it outputs wheel-diameter correction information WD. A synchronizing-frequency calculation means outputs synchronizing frequency information FM on the basis of axle rotational-frequency information FR and the wheel-diameter correction information WD.
    Type: Grant
    Filed: April 17, 2006
    Date of Patent: October 2, 2012
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hiroyuki Kayano, Tsuneyasu Kakizaki
  • Patent number: 8265187
    Abstract: A method for transmitting data in a telecommunication system including at least one transmitter comprising at least two transmitting antennas and at least one receiver comprising at least one receiving antenna, the method including: transforming a plurality of bits of the data to be transmitted into a plurality of symbols by modulating the plurality of bits of the data at the transmitter; generating a first vector formed by the plurality of symbols at the transmitter; preparing a modified matrix by modifying an original matrix based on the number of rows of the first vector, the original matrix being predefined at the transmitter; generating a second vector by multiplying the first vector with the modified matrix at the transmitter; and transmitting symbols forming the second vector over communication channels established between the at least two transmitting antennas of the transmitter and the at least one receiving antenna of the receiver.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: September 11, 2012
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Damien Castelain, Loic Brunel
  • Patent number: 8233430
    Abstract: A terminal transmits a request for a resource assignment to a base station, and acquires a value of a resource for data transmission. The terminal does not transmit the new data to the base station when the resource for data transmission does not exist, and transmits the new data to the base station otherwise, after acquiring the value. The terminal autonomously transmits, when the new data is transmitted to the base station and a NAK signal is received from the base station, the retransmission data to the base station without sending a transmission request to the base station for resources to transmit the retransmission data.
    Type: Grant
    Filed: November 11, 2003
    Date of Patent: July 31, 2012
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Noriyuki Fukui, Michiaki Takano, Akihiro Shibuya
  • Patent number: 8225854
    Abstract: A heat sink including a compact cooling system, superior uniformity of heating, provides a compact cooling unit superior in uniformity of cooling. A heat sink includes a header for distribution connected to a cooling fluid inlet, a header for confluence connected to a cooling fluid outlet and parallel to and adjacent to the header for distribution and a heat transfer vessel including a heating element mounting surface as well as channels inside. The channels are connected to the header for distribution and the header for confluence.
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: July 24, 2012
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shigetoshi Ippoushi, Akira Yamada, Takeshi Tanaka, Akihiro Murahashi, Kazuyoshi Toya, Hideo Okayama
  • Patent number: 8230083
    Abstract: A communication adapter apparatus connects electrical apparatuses, sensors, and other apparatuses to a network. In order to obtain a communication adapter apparatus that is capable of realizing simplification of setting at the time of execution of works, simplification of execution of works, reduction of power consumption, and simplification of system setting, the communication adapter apparatus is a communication adapter that connects one of plural connection object apparatuses having an apparatus object consisting of information, which is based on functions of the apparatuses, and operable control items, respectively and a network to which a controller for remotely controlling the connection object apparatus is connected.
    Type: Grant
    Filed: October 1, 2003
    Date of Patent: July 24, 2012
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Toshiyasu Higuma, Noriyuki Kushiro, Yoshiaki Ito, Yoshiko Ochiai, Yoshiaki Koizumi
  • Patent number: 8218892
    Abstract: A method of representing an image comprises processing the image to produce a second image highlighting edges in the image (eg a intensity gradient image) and deriving a descriptor based on spatially integrated or rotationally invariant representations of regions of the second image.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: July 10, 2012
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Miroslaw Bober