Patents by Inventor Toru Maeda

Toru Maeda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20090121175
    Abstract: A soft magnetic material includes a plurality of composite magnetic particles each including a metal magnetic particle and an insulating coating film covering the metal magnetic particle. Each of the plurality of composite magnetic particles has a ratio Rm/c of a maximum diameter to a circle-equivalent diameter of more than 1.15 and not more than 1.35. The insulating coating film is composed of a thermosetting organic material and has a pencil hardness of 5H or higher after thermosetting. With this material, an eddy current loss can be reduced, and a compact with a high strength can be formed.
    Type: Application
    Filed: September 8, 2006
    Publication date: May 14, 2009
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Toru Maeda, Yasushi Mochida, Takao Nishioka
  • Publication number: 20090047519
    Abstract: The soft magnetic material includes a plurality of composite magnetic particles having a metal magnetic particle and an insulating film surrounding the surface of the metal magnetic particle. The metal magnetic particle contains iron as the main component. The insulating film contains aluminum, silicon, phosphorus, and oxygen. The insulating film satisfies the relationship 0.4?MAl/(MAl+MSi)?0.9 and the relationship of 0.25?(MAl+MSi)/MP?1.0 in the case that molar amount of aluminum contained in the insulating film is represented by MAl, the sum of the molar amount of aluminum contained in the insulating film and the molar amount of silicon contained in the insulating film is represented by (MAl+MSi), and the molar amount of phosphorus contained in the insulating film is represented by MP.
    Type: Application
    Filed: November 22, 2006
    Publication date: February 19, 2009
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., TODA KOGYO CORP.
    Inventors: Toru Maeda, Naoto Igarashi, Haruhisa Toyoda, Seiji Ishitani, Hiroko Morii, Kazuyuki Hayashi
  • Publication number: 20090018452
    Abstract: A probe is adapted to emit light having at least one wavelength as irradiation light with respect to a measured portion on a biological body in order to measure a biological signal. A light emitting element is configured to emit the light having the at least one wavelength. A light guiding member is provided with: a first end face, being light-reflective and having a first part opposing the light emitting element and a second part surrounding the first part; a second end face, being light-reflective and intersecting the first end face; and a third end face, being light-permeable, opposing the first end face and intersecting the second end face. The light guiding member is configured such that at least part of the light emitted from the light emitting element is reflected by at least one of the first end face and the second end face, and emitted from the third end face as the irradiation light. A light receiving element is configured to receive light reflected by the measured portion.
    Type: Application
    Filed: March 31, 2008
    Publication date: January 15, 2009
    Applicant: NIHON KOHDEN CORPORATION
    Inventors: Keiichi SUGIURA, Toru MAEDA, Teiji UKAWA, Shinji YAMAMORI
  • Patent number: 7453606
    Abstract: An image communication apparatus having an Internet facsimile communication device and a G3 facsimile communication device includes a detector for detecting a facsimile function of a communication partner's apparatus during communication by the G3 facsimile communication device, and a controller for performing control of causing the G3 facsimile communication device to disconnect communication in a G3 facsimile mode and shifting to communication by the Internet facsimile communication device, based on the detection of the facsimile function of the communication partner's apparatus by the detector.
    Type: Grant
    Filed: November 2, 2005
    Date of Patent: November 18, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toru Maeda
  • Publication number: 20080248245
    Abstract: A soft magnetic material includes a plurality of composite magnetic particles. Each of the plurality of composite magnetic particles has a metal magnetic particle including iron, a lower film surrounding the surface of the metal magnetic particle and including a nonferrous metal, and an insulating upper film surrounding the surface of the lower film and including an inorganic compound. The inorganic compound contains at least one element of oxygen and carbon. The nonferrous metal has an affinity with at least one of oxygen and carbon that is larger than such affinity of iron. The nonferrous metal has a diffusion coefficient with respect to at least one of oxygen and carbon that is smaller than such diffusion coefficient of iron. Thus, a soft magnetic material that provides desirable magnetic properties, a method of manufacturing a soft magnetic material, a dust core, and a method of manufacturing a dust core are provided.
    Type: Application
    Filed: July 20, 2006
    Publication date: October 9, 2008
    Inventors: Toru Maeda, Haruhisa Toyoda, Naoto Igarashi, Kazuhiro Hirose, Seiji Ishitani, Hiroko Morii, Kazuyuki Hayashi
  • Publication number: 20080231409
    Abstract: The object of the present invention is to provide a powder core and method for making the same that is equipped with insulative coating having superior heat resistance, with the coating making it possible to adequately restrict the flow of eddy currents between particles. The powder core is equipped with a plurality of compound magnetic particles bonded to each other. Each of said plurality of composite magnetic particles includes: a metal magnetic particle 10; an insulative lower layer coating 20 surrounding a surface 10a of said metal magnetic particle 10; an upper layer coating 30 surrounding said lower layer coating 20 and containing silicon; and dispersed particles 50 containing a metal oxide compound and disposed in said lower layer coating 20 and/or said upper layer coating 30. A mean particle diameter R of the dispersed particles 50 meets the condition 10 nm<R?2 T, where the average thickness of the coating combining the lower layer coating 20 and the upper layer coating 30 is T.
    Type: Application
    Filed: January 28, 2005
    Publication date: September 25, 2008
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Hirokazu Kugai, Naoto Igarashi, Toru Maeda, Kazuhiro Hirose, Haruhisa Toyoda, Koji Mimura, Takao Nishioka
  • Patent number: 7405500
    Abstract: A wire bonding apparatus 10 including an X table 18 guided to move in the X direction on an XY table base 14 and a driving motor 20 mounted on a motor base 16 with the movable element 22 of the driving motor 20 connected to the X table 18. The motor main body 24 is guided by a pair of motor guides 26 so as to be movable in the X direction via the laminated bodies 40. In each laminated body 40, viscoelastic flat rubber plates that have a spring element and a damping element, and flat rigid plates, are alternately disposed and laminated, so that the rigidity is large in the direction perpendicular to the laminated surfaces, and the rigidity is small in the direction parallel to the laminated surfaces, and the laminated bodies have a recovery force and a damping force due to the viscoelasticity.
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: July 29, 2008
    Assignee: Kabushiki Kaisha Shinkawa
    Inventor: Toru Maeda
  • Publication number: 20080152897
    Abstract: A soft magnetic material includes a plurality of composite magnetic particles (30), wherein each of the plurality of composite magnetic particles (30) includes a metal magnetic particle (10), an insulating coating (20) covering the surface of the metal magnetic particle (10), and a composite coating (22) covering the outside of the insulating coating (20). The composite coating (22) includes a heat-resistance-imparting protective coating (24) covering the surface of the insulating coating (20), and a flexible protective coating (26) covering the surface of the heat-resistance-imparting protective coating (24). Accordingly, a soft magnetic material and a dust core which have a satisfactory compactibility and in which the insulating coating satisfactorily functions, thereby sufficiently reducing core loss, can be obtained.
    Type: Application
    Filed: January 20, 2006
    Publication date: June 26, 2008
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Toru Maeda, Kazuhiro Hirose, Haruhisa Toyoda
  • Patent number: 7365450
    Abstract: An electric cutoff circuit for preventing overheating of a load. The current shutoff circuit includes an FET connected to a motor circuit. A relay fault detection circuit is connected to the motor circuit to detect potential at the motor circuit. A CPU sends a control signal to a relay. The CPU determines whether a fault has occurred in the relay based on the control signal sent to the relay and the detection of the relay fault detection circuit. When determining that a fault has occurred in the relay, the CPU opens the FET to configure an open circuit with the motor circuit.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: April 29, 2008
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Toshihiro Nagae, Kazuya Otani, Toru Maeda
  • Publication number: 20080093416
    Abstract: A tip end portion and an outer surface of a capillary (or of a wedge tool) used in, for instance, a wire bonding apparatus and method, being covered by a diamond layer with a heating element attached to the outer surface thereof. The inside of the capillary is formed by alumina ceramics, having a tapered hole. The tip end of the capillary is formed by the diamond layer, and a face portion and an inner chamfer portion are formed at the tip end to make a wire heating portion. Heat is transferred from the heating element to the wire heating portion through a heat supply path formed by the diamond layer, and a bonding surface formed by a wire and a pad is heated.
    Type: Application
    Filed: June 15, 2007
    Publication date: April 24, 2008
    Inventors: Tetsuya Utano, Yutaka Kondo, Toru Maeda
  • Publication number: 20080061264
    Abstract: A soft magnetic material has a plurality of composite magnetic particles. Each of the plurality of composite magnetic particles has a metal magnetic particle and an insulating coating covering the metal magnetic particle. Each of the plurality of composite magnetic particles has a ratio of a maximum diameter to an equivalent circle diameter greater than 1.0 and at most 1.3, and a specific surface area of at least 0.10 m2/g.
    Type: Application
    Filed: March 9, 2006
    Publication date: March 13, 2008
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Toru Maeda, Naoto Igarashi, Haruhisa Toyoda
  • Publication number: 20080041496
    Abstract: A method of producing a soft magnetic material includes the steps of preparing soft magnetic powder containing a plurality of soft magnetic particles etching the soft magnetic powder to remove surfaces of the soft magnetic particles and, after the etching step, heat-treating the soft magnetic powder in a finely divided state at a temperature of not less than 400° C. and not more than 900° C. By this method configured as above, desired magnetic characteristics can be obtained.
    Type: Application
    Filed: March 29, 2005
    Publication date: February 21, 2008
    Inventors: Toru Maeda, Naoto Igarashi, Kazuhiro Hirose, Haruhisa Toyoda
  • Publication number: 20080044679
    Abstract: A soft magnetic material includes a plurality of composite magnetic particles (40) each including a metal magnetic particle (10) and an insulation coating (20) covering the surface of the metal magnetic particle (10), wherein the insulation coating (20) contains Si (silicon), and 80% or more of Si contained in the insulation coating constitutes a silsesquioxane skeleton. Therefore, it is possible to effectively decrease a hysteresis loss while suppressing an increase in eddy-current loss.
    Type: Application
    Filed: July 19, 2006
    Publication date: February 21, 2008
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, INC.
    Inventors: Toru Maeda, Kazuyuki Maeda, Yasushi Mochida, Koji Mimura
  • Patent number: 7327227
    Abstract: A vehicle security device for improving the security level of a vehicle. The vehicle security device is connected to an engine and communicates with a portable device. A smart ECU performs a first coded communication to establish mutual authentication with the portable device. An ID code box is connected to the smart ECU, has a first code and a second code, and does not communicate with the portable device. The ID code box performs a second coded communication using the first code to establish a second mutual authentication with the smart ECU. An engine ECU performs a third coded communication using the second code to establish a third mutual authentication with the ID code box. The engine ECU enables the engine to be started when every one of the first, second, and third mutual authentications are established.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: February 5, 2008
    Assignees: Kabushiki Kaisha Tokai Rika Denki Seisakusho, Denso Corporation, Toyota Jidosha Kabushiki Kaisha
    Inventors: Kiyokazu Ohtaki, Toru Maeda, Hisashi Kato, Akiyoshi Osumi, Takeshi Kumazaki, Ifushi Shimonomoto, Toshio Shimomura, Yoshinori Fukuoka, Koichi Masamura
  • Publication number: 20080023525
    Abstract: A bonding apparatus capable of efficiently performing surface treatment using microplasma and a bonding process to an object to be bonded including a plasma capillary having a tubular plasma capillary main body made of an insulating body, a cylindrical external electrode provided outside the tubular plasma capillary main body, a linear internal electrode provided at the center of the inside of the tubular plasma capillary main body, and a seal gas nozzle provided at the outer circumference of the tubular plasma capillary main body. Microplasma produced within the plasma capillary is sprayed from the main body opening, and performs the surface treatment to a bonding pad while being sealed from an ambient air by a seal gas flow sprayed from the annular opening. In conjunction with the surface treatment, bonding is performed using a bonding capillary.
    Type: Application
    Filed: July 31, 2007
    Publication date: January 31, 2008
    Inventors: Toru Maeda, Kazuo Fujita
  • Publication number: 20070264521
    Abstract: A soft magnetic material includes a plurality of composite magnetic particles (30) having metallic magnetic particles (10) that are composed of pure iron, and an insulation film (20) that surrounds the surface of the metallic magnetic particles (10), wherein the manganese content of the metallic magnetic particles (10) is 0.013 mass % or less, and is more preferably 0.008 mass % or less. Hysteresis loss can thereby be effectively reduced.
    Type: Application
    Filed: July 19, 2006
    Publication date: November 15, 2007
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Toru Maeda, Haruhisa Toyoda, Koji Mimura, Yasushi Mochida
  • Publication number: 20070235109
    Abstract: A soft magnetic material is a soft magnetic material including a composite magnetic particle (30) having a metal magnetic particle (10) mainly composed of Fe and an insulating coating (20) covering metal magnetic particle (10), and insulating coating (20) contains an iron phosphate compound and an aluminum phosphate compound. The atomic ratio of Fe contained in a contact surface of insulating coating (20) in contact with metal magnetic particle (10) is larger than the atomic ratio of Fe contained in the surface of insulating coating (20). The atomic ratio of Al contained in the contact surface of insulating coating (20) in contact with metal magnetic particle (10) is smaller than the atomic ratio of Al contained in the surface of insulating coating (20). Thus, iron loss can be reduced.
    Type: Application
    Filed: September 29, 2005
    Publication date: October 11, 2007
    Inventors: Toru Maeda, Naoto Igarashi, Haruhisa Toyoda, Hirokazu Kugai, Kazuyuki Hayashi, Hiroko Morii, Seiji Ishitani
  • Patent number: 7274483
    Abstract: In an image forming apparatus which is connected to a network (30), and forms an image on the basis of data acquired from the network, upon receiving a URL that designates image data to be acquired from a console, the URL is interpreted, and a data request is submitted to a server via the network on the basis of the interpretation result. Image data sent from the server in response to that data request is stored. If the image data is a JPEG image, an image process that warrants excellent tone reproduction is made; if the image data is a GIF image, an image process that warrants high resolution is made, and the processed image data is output to a printer to print it out.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: September 25, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Aiyama, Toru Maeda, Kenzo Sekiguchi, Ritsushi Tanabe, Kotaro Yamaguchi, Hiroyuki Yaguchi, Tomohiro Akiba
  • Patent number: 7262683
    Abstract: A system for controlling starting and stopping of an engine that prevents a user from erroneously determining that the system is not functioning properly. The system includes an electronic key that may be inserted in a socket. The key selectively transmits a key ID code and a key transponder code to the vehicle. A microcomputer installed in the vehicle checks whether the key ID code matches a vehicle ID code when the key is arranged in the vehicle and checks whether the key transponder code matches a vehicle transponder code when the key is inserted in the socket. The microcomputer enables the starting of the engine and selectively interlocks the key inserted in the socket in accordance with the checking results. First and second display lamps notify the user whether the key is removable from the socket in accordance with the operation of the microcomputer.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: August 28, 2007
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventor: Toru Maeda
  • Publication number: 20070194267
    Abstract: A soft magnetic material includes: a plurality of composite magnetic particles formed from a metal magnetic particle and an insulative coating surrounding a surface of the metal magnetic particle and containing metallic salt phosphate and/or oxide; and a lubricant formed as fine particles added at a proportion of at least 0.001 percent by mass and no more than 0.1 percent by mass relative to the plurality of composite magnetic particles. With this structure, superior lubrication is provided during compacting and desired magnetic characteristics can be obtained after compacting.
    Type: Application
    Filed: March 29, 2005
    Publication date: August 23, 2007
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Kazuhiro Hirose, Haruhisa Toyoda, Takao Nishioka, Naoto Igarashi, Toru Maeda, Yoshiyuki Shimada