Patents Assigned to Matsushita Electric Works, Ltd.
  • Patent number: 7570000
    Abstract: In a control drive circuit for an electric power tool, a bridge-structured motor, which has a bridge structure and includes switching elements and a motor body, is connected to a power supply unit without any mechanical contacts, and an electric power is supplied to a control circuit for controlling the switching elements by turning on a trigger switch. Further, a circuit switch is provided at power supply sides of drive circuits for driving the switching elements, the circuit switch being controlled by the control circuit to interrupt supply of the electric power to the drive circuits.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: August 4, 2009
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Hiroshi Miyazaki, Akira Kawai
  • Patent number: 7570017
    Abstract: A battery pack for a power tool has a less-current consuming over-discharge protection. The battery pack includes a battery stack composed of a plurality of series connected secondary cells, and a discharge detector configured to monitor a cell voltage across each of the secondary cells and to provide a discharge stop signal when any one of the cell voltages becomes lower than a predetermined threshold. The discharge stop signal is fed to deenergize the power tool. The discharge detector is composed of a voltage monitor and a power controller. The voltage monitor includes a plurality of comparators and a plurality of constant voltage elements each providing a constant voltage determining the threshold. Each comparator is configured to compare each cell voltage with the threshold to give a comparison result. The voltage monitor is energized by the battery stack to provide the discharge stop signal based upon the comparison results.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: August 4, 2009
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Yoshinori Sainomoto, Toshiharu Ohashi, Hiroshi Miyazaki
  • Patent number: 7569124
    Abstract: In an anodic oxidation apparatus and an anodic oxidation method and a panel for a display device manufactured by them, a large target substrate is treated by a smaller component.
    Type: Grant
    Filed: August 25, 2004
    Date of Patent: August 4, 2009
    Assignee: Tokyo Electron Limited and Matsushita Electric Works, Ltd.
    Inventors: Yasushi Yagi, Mitsuru Ushijima, Yoshifumi Watabe, Takuya Komoda, Koichi Aizawa
  • Publication number: 20090191280
    Abstract: A hard tissue repairing material includes zirconia as a base material. A surface of the base material has a hydrophilic group. The hydrophilic group is bonded to zirconium atom in the base material. The base material may contain at least an ionic component that is selected from a group consisting of calcium ion, sodium ion, potassium ion, and phosphate ions within the surface. A hard tissue repairing material may include zirconia as a base material and a layer of a main component of an apatite. The layer of the apatite may be formed on a hydrophilic group bonded to zirconium atom in the base material.
    Type: Application
    Filed: April 8, 2009
    Publication date: July 30, 2009
    Applicants: MATSUSHITA ELECTRIC WORKS, LTD.
    Inventors: Tadashi KOKUBO, Masahiro NAWA, Masaki UCHIDA
  • Patent number: 7566212
    Abstract: A vane pump includes a rotor accommodated in a rotor chamber; a plurality of vanes attached to the rotor, each of the vanes having a leading end adapted to make sliding make a contact with an inner peripheral surface of the rotor chamber. Further, the vane pump includes working compartments surrounded by inner surfaces of the rotor chamber, an outer peripheral surface of the rotor and the vanes, the working compartments being adapted to undergo a volume change as the rotor is rotatably driven; an inlet port through which a working fluid is drawn into a working compartment whose volume is being increased; and an outlet port through which the working fluid is discharged from a working compartment whose volume is being decreased; and one or more blade base members protruded from portions on the outer peripheral surface of the rotor between the vanes adjacent to each other.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: July 28, 2009
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Masaaki Nishikata, Toshiyuki Kubota, Tsuyoshi Kusakabe, Harumi Fukuki
  • Patent number: 7567058
    Abstract: A power tool includes a power tool and a battery pack detachably attached to the power tool, the battery pack having two engaging portions to be mechanically coupled to the power tool and the power tool having engaged portions respectively corresponding to two engaging portions of the battery pack respectively. Each of engaging portions of the battery pack includes an insertion restricting portion and an attachment securing portion for allowing its corresponding engaged portion to be inserted only in a direction of pressing the attaching portion of the battery pack against the attached portion of the power tool, each of the attachment securing portions being coupled to its corresponding engaged portion. At least one of said at least two engaging portions further has a hook engaging portion which is selectively secured with an engaged portion moved from its corresponding insertion restricting portion to its corresponding attachment securing portion.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: July 28, 2009
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Hidenori Shimizu, Fumiaki Sawano, Masatoshi Atsumi
  • Patent number: 7567420
    Abstract: An electrostatically atomizing device includes an emitter electrode, an opposed electrode opposed to the emitter electrode, and a cooling means which condenses the water on the emitter electrode from within the surrounding air, and a high voltage source applying a high voltage across the emitter electrode and the opposed electrode to electrostatically charge the water for atomizing charged minute water particles from a discharge end of the emitter electrode. The device further includes a controller for discharging the charged minute water particles in a stable manner. The controller monitors a discharge current flowing between the two electrodes to control the cooling means for keeping the discharge current at a predetermined level, thereby regulating the atomizing amount of the charged minute particles from the emitter electrode.
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: July 28, 2009
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Kentaro Kobayashi, Hirokazu Yoshioka, Tomoharu Watanabe, Akihide Sugawa, Shousuke Akisada, Kishiko Hirai, legal representative, Fumio Mihara, Kouichi Hirai, Shinya Murase, Atsushi Isaka, Osamu Imahori, Sumio Wada, Tatsuhiko Matsumoto, Toshihisa Hirai
  • Patent number: 7566501
    Abstract: An epoxy resin composition for printed wiring boards which comprises an epoxy resin, a phenolic novolak, a curing accelerator, and a silica filler, characterized in that the silica filler has a shape having at least two planes and has an average particle diameter of 0.3 to 10 ?m and a specific surface area of 8 to 30 m2/g. The epoxy resin composition has a higher apparent viscosity than the resins and can hence be inhibited from sagging in a drying oven. This composition retains the intact property of infiltration into reinforcements because the viscosity of the resins themselves has not increased locally. The composition hence produces the effect of improving the appearance of a prepreg.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: July 28, 2009
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Hidetsugu Motobe, Akinori Hibino, Katsuhiko Ito
  • Patent number: 7566211
    Abstract: A vane pump includes a rotor chamber; a rotor accommodated in the rotor chamber; a plurality of vanes attached to the rotor, each vane having a leading end adapted to make sliding contact with an inner peripheral surface of the rotor chamber. The vane pump includes working compartments surrounded by inner surfaces of the rotor chamber, an outer peripheral surface of the rotor and the vanes; an inlet port through which a working fluid is drawn into a working compartment; and an outlet port through which the working fluid is discharged from a working compartment. A cutout portion is formed in a leading end portion of each vane on each of at least one of a leading and a trailing side of the leading end portion, the leading end of each vane having a width smaller than that of a base end portion of each vane.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: July 28, 2009
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Masaaki Nishikata, Tsuyoshi Kusakabe, Tsukasa Hojo, Ken Yamamoto, Masaki Nagano
  • Publication number: 20090186431
    Abstract: In a light-emitting device and its manufacturing method, mounting by batch process with surface-mount technology, high light extraction efficiency, and low manufacturing cost are realized. The light-emitting device comprises semiconductor layers of p-type and n-type nitride semiconductor, semiconductor-surface-electrodes to apply currents into each of the semiconductor layers, an insulating layer which holds the semiconductor layers, and mount-surface-electrodes. The semiconductor layers has a non-deposited area where the other semiconductor layer is not deposited. The insulating layer has VIA which electrically connect the mount-surface-electrodes and the semiconductor-surface-electrodes.
    Type: Application
    Filed: March 24, 2009
    Publication date: July 23, 2009
    Applicant: MATSUSHITA ELECTRIC WORKS, LTD.,
    Inventors: Ken'ichiro TANAKA, Masao Kubo
  • Publication number: 20090183384
    Abstract: A drying device has a heating coil 5a that heats by electromagnetic induction a material to be dried that is placed on a dried material-placement part, and an air blower 6 that sends air to the material to be dried. A heated member 22 heated by electromagnetic induction of the heating coil 5a and temperature detection means for detecting temperature of the heated member 22 are also provided. The heated member 22 is disposed at a position where the temperature thereof changes under the influence of the air from the air blower 6.
    Type: Application
    Filed: June 26, 2007
    Publication date: July 23, 2009
    Applicant: MATSUSHITA ELECTRIC WORKS, LTD.
    Inventor: Hiroyasu Kitamura
  • Publication number: 20090167857
    Abstract: An individual detector comprises a range image sensor and an object detection stage. The range image sensor is disposed to face a detection area and generates a range image. When one or more physical objects exist in said area, each image element of the range image includes each distance value up to the one or more physical objects, respectively. Based on the range image generated with the sensor, the object detection stage separately detects the one or more physical objects in the area. Accordingly, it is possible to separately detect one or more physical objects in the detection area without increasing the number of constituent elements for detecting the one or more physical objects.
    Type: Application
    Filed: July 29, 2005
    Publication date: July 2, 2009
    Applicant: Matsushita Electric Works, Ltd.
    Inventors: Hiroshi Matsuda, Hiroyuki Fujii, Naoya Ruike
  • Patent number: 7555407
    Abstract: An anomaly monitoring device includes: a signal input unit for receiving a periodic target signal generated by an operating apparatus; a storage unit for storing therein segmented target signals provided from the target signal in a form of a queue; a dividing unit for providing comparing portions of each segmented target signal; a power calculating unit for calculating a power of each comparing portion in each segmented target signal. The device further includes an anomalous input detecting unit which judges that a comparing portion of a latest segmented target signal is abnormal if a power of the comparing portion is in a range of abnormal values when compared with a corresponding comparing portion in a previous segmented target signal, and determines that the signal input unit is abnormal if the number of abnormal comparing portions in the latest segmented target signal exceeds a threshold.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: June 30, 2009
    Assignee: Matsushita Electric Works, Ltd.
    Inventor: Yoshihito Hashimoto
  • Publication number: 20090163824
    Abstract: A living body information measuring apparatus can suppress the bulge of tendons due to the bending of a wrist or fingers, and has good contact intimacy with arteries, making it possible to make accurate measurements of living body information. A cuff is formed of: a compression fluid bag which is provided for detecting a pulse wave signal, and which can be expanded and contracted by being supplied with a fluid; and two auxiliary fluid bags which are provided on an outer side of the compression fluid bag, and which can be expanded and contracted by being supplied with the fluid. The auxiliary fluid bags have a two-layer structure, and are connected to the compression fluid bag via opening portions, while the auxiliary fluid bags are respectively divided from each other. The compression fluid bag compresses the tendons, the radial artery and the ulnar artery, while the auxiliary fluid bag and the auxiliary fluid bag compress the radial artery and the ulnar artery, respectively.
    Type: Application
    Filed: November 15, 2006
    Publication date: June 25, 2009
    Applicant: MATSUSHITA ELECTRIC WORKS, LTD.
    Inventors: Kazuhiro Ide, Manabu Hamamoto, Nobuo Iwai
  • Publication number: 20090154526
    Abstract: A radio receiving apparatus of the present invention is for receiving a radio signal having pulsating signals occurring at specific periods, wherein the radio receiving apparatus corrects signal levels received during communication in individual regions into which each of the aforementioned periods is divided based on signal levels received in the individual regions under conditions where the radio signal is not received. As a result of this correction, the radio receiving apparatus of the present invention can decrease the influence of noise having periodicity and improve reliability of communication.
    Type: Application
    Filed: September 26, 2006
    Publication date: June 18, 2009
    Applicant: MATSUSHITA ELECTRIC WORKS, LTD.
    Inventors: Atsushi Okita, Satosi Sugino, Masanori Hayashi
  • Publication number: 20090146562
    Abstract: An electrodeless discharge lamp apparatus is provided which is increased in heat dissipation, making it possible to adapt to an increase in output of the apparatus. The electrodeless discharge lamp apparatus comprises a bulb containing a discharge gas and a coupler accommodated in a cavity formed in the bulb for generating a high frequency electromagnetic field. The coupler has: an induction coil; a core inserted into the coil; a heat conductor for conducting heat generated from the coil and the core; and a bobbin made of resin which accommodates the core and the heat conductor therein, and which has the coil wound therearound. The bobbin is designed to be separated in a radial direction of the coil, so that it is possible to separately mold the respective parts of the bobbin.
    Type: Application
    Filed: September 28, 2005
    Publication date: June 11, 2009
    Applicants: MATSUSHITA ELECTRIC WORKS, LTD., IKEDA ELECTRIC CO., LTD.
    Inventors: Hiroshi Ogasawara, Hiroshi Miyasaki, Hidenori Kakehashi, Keisuke Harada, Yoshinobu Shibata
  • Publication number: 20090146506
    Abstract: Task—To provide a two-hand switch device that requires only a small load for each operation cycle. Means to Achieve the Task—The device comprises a left hand RF antenna placed in such a position as to enable a communication with the first RFID tag worn on the pre-determined position of the left hand of the worker only when the left hand of the worker is placed in a pre-determined left hand safe position, a right hand RF antenna placed in such a position as to enable a communication with the second RFID tag worn on the pre-determined position of the right hand of the worker only when the right hand of the worker is placed in a pre-determined right hand safe position and an output signal generating means for generating an output signal according to signals received by the left hand RF antenna and the right hand RF antenna.
    Type: Application
    Filed: July 12, 2006
    Publication date: June 11, 2009
    Applicants: OMRON CORPORATION, IDEC CORPORATION, SUNX LIMITED, YAMATAKE CORPORATION, MATSUSHITA ELECTRIC WORKS, LTD.
    Inventors: Tatsuya Iida, Manabu Shutto, Hiroaki Furukawa, Toshiki Koshi, Takashi Tanaka
  • Patent number: 7543546
    Abstract: A plasma treatment apparatus is provided, which enables to increase a treatment area and provide good treatment uniformity. This apparatus comprises a pair of electrode plates having a plurality of through holes and an insulating plate having a plurality of through holes. The insulating plate is disposed between the electrode plates such that positions of the through holes of the electrode plates correspond to the positions of the through holes of the insulating plate. A plurality of discharge spaces are formed by the through holes of the electrode plates and the through holes of the insulating plate. By applying a voltage between the electrode plates, while supplying a plasma generation gas into the discharge spaces, plasmas are generated simultaneously in the discharge spaces, and sprayed on an object to efficiently perform a large-area, uniform plasma treatment.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: June 9, 2009
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Tetsuji Shibata, Keiichi Yamazaki, Noriyuki Taguchi, Yasushi Sawada
  • Publication number: 20090137152
    Abstract: A memory card socket has a plate-like antenna block having a coil-like secondary antenna which is opposed to an antenna incorporated in a memory card in a state where the memory card is attached to the card receiving portion. Openings as cavities are formed in portions of the antenna block inside of the coil of the secondary antenna. With this structure, it is possible to obtain a memory card socket having a compact and simple structure and having a non-contact communication function capable of preventing producing cost from increasing.
    Type: Application
    Filed: October 6, 2006
    Publication date: May 28, 2009
    Applicant: MATSUSHITA ELECTRIC WORKS, LTD.
    Inventors: Hirohisa Tanaka, Masato Namboku, Masahito Yamana
  • Publication number: 20090134716
    Abstract: A dual wiring system is provided, which has improved easy exchangeability and function expandability of function unit, and is capable of constructing a higher-order system by controlling plural function units in a coordinated fashion. A plurality of base units are mounted in wall surfaces of a building structure, and connected to both of an electric power line and an information line installed in the building structure. The function unit is detachably connected to each of the base units, and provides at least one of functions for supplying electric power from the electric power line, outputting information from the information line, and inputting information into the information line. A control unit is detachably connected to the function unit or the base unit, and controls at least two of the function units connected to the electric power line and the information line through the base unit(s) in a coordinated fashion.
    Type: Application
    Filed: December 27, 2005
    Publication date: May 28, 2009
    Applicant: Matsushita Electric Works, Ltd.
    Inventors: Tsunehiro Kitamura, Yoshihiro Tanikawa, Hiroaki Takeyama, Masahiro Yamamoto, Takeshi Ueno, Kazufumi Oogi, Kenichi Yoneyama, Hideshi Hamaguchi