Patents Assigned to National University Corporation Nagoya Institute of Technology
  • Patent number: 7629714
    Abstract: A rocking actuator and a laser machining apparatus which can suppress a temperature rise of a permanent magnet in a moving-magnet actuator. Even when a steerable mirror is positioned by rapid and continuous motions, highly reliable machining can be performed without degrading machining throughput or hole position accuracy. A cooling jacket for cooling a casing and heat transfer units brought into contact with a coil and the casing are provided. Heat generated in the coil is introduced to the casing through the heat transfer bypass units. Thus, the temperature rise of the coil is suppressed. Radial grooves are provided in the permanent magnet opposed to the coil so as to prevent an eddy current from appearing therein. Groove depth is made not smaller than skin depth expressed by a function of volume resistivity and permeability of the permanent magnet and a fundamental frequency of a current applied to the coil.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: December 8, 2009
    Assignees: Hitachi Via Mechanics, Ltd., National University Corporation Nagoya Institute of Technology
    Inventors: Souichi Toyama, Kounosuke Kitamura, Akira Doi, Hiromu Hirai, Kenta Seki, Yoshiaki Kano
  • Publication number: 20090224717
    Abstract: An operating apparatus including a main body, a movable member, a drive unit having a drive source, and a control unit controlling the drive source to control the position of the movable member relative to the main body. The control unit including a position control system and an acceleration control system. The position control system including a position command portion, a first feedforward compensator outputting a first operation command to the drive source, a second feedforward compensator, a positional-information acquiring device obtaining information related to the position of the movable member, and a first feedback compensator outputting a second operation command to the drive source. The acceleration control system including an acceleration-information acquiring device obtaining information related to an acceleration of the main body, a third feedforward compensator, a second feedback compensator outputting a third operation command to the drive source.
    Type: Application
    Filed: March 4, 2009
    Publication date: September 10, 2009
    Applicants: FUJI MACHINE MFG. CO., LTD., NATIONAL UNIVERSITY CORPORATION NAGOYA INSTITUTE OF TECHNOLOGY
    Inventors: Hiroshi Sawaragi, Keisuke Nagiri, Takayoshi Kawai, Nobuyuki Matsui, Makoto Iwasaki
  • Publication number: 20090218565
    Abstract: A resistance variable element is provided, which is capable of performing bipolar operation by a specified mechanism and usable as a memory. The resistance variable element has a laminated structure including an electrode, an electrode, an oxide layer between the electrodes, and an oxide layer in contact with the oxide layer between the oxide layer and the electrode. The oxide layer is switchable from the low-resistance state to the high-resistance state by donating oxygen ions to the oxide layer, and from the high-resistance state to the low-resistance state by accepting oxygen ions from the oxide layer. The oxide layer is switchable from the low-resistance state to the high-resistance state by accepting oxygen ions from the oxide layer, and from the high-resistance state to the low-resistance state by donating oxygen ions to the oxide layer.
    Type: Application
    Filed: April 14, 2009
    Publication date: September 3, 2009
    Applicants: FUJITSU LIMITED, NATIONAL UNIVERSITY CORPORATION NAGOYA INSTITUTE OF TECHNOLOGY
    Inventors: Hiroyasu Kawano, Keiji Shono, Manabu Gomi, Takeshi Yokota
  • Publication number: 20090190651
    Abstract: In a full digital amplifier for an audio amplifier or the like, it is possible to suppress the concentration of an electromagnetic noise emission spectrum at a specific frequency. A sampling period variation type digital filter is realized by varying the coefficient of a noise shaping filter for the delta-sigma modulator of the full digital amplifier depending on a sampling period. This allows the variation in the carrier frequency of the pulse width modulation.
    Type: Application
    Filed: July 27, 2006
    Publication date: July 30, 2009
    Applicant: NATIONAL UNIVERSITY CORPORATION NAGOYA INSTITUTE OF TECHNOLOGY
    Inventor: Akihiko Yoneya
  • Publication number: 20090176995
    Abstract: Disclosed are soluble diarylmethanofullerene derivatives that are effective as acceptors for organic thin-film solar batteries. They help to constitute effective organic thin-film solar batteries.
    Type: Application
    Filed: November 28, 2008
    Publication date: July 9, 2009
    Applicant: NATIONAL UNIVERSITY CORPORATION NAGOYA INSTITUTE OF TECHNOLOGY
    Inventors: Takeshi Toru, Norio Shibata, Shuichi Nakamura, Tetsuo Soga, Yasuhiko Hayashi, Surya Prakash Singh
  • Patent number: 7554296
    Abstract: A neural network type of apparatus is provided to detect an internal state of a secondary battery implemented in a battery system. The apparatus comprises a detecting unit, producing unit and estimating unit. The detecting unit detects electric signals indicating an operating state of the battery. The producing unit produces, using the electric signals, an input parameter required for estimating the internal state of the battery. The input parameter reflects calibration of a present charged state of the battery which is attributable to at least one of a present degraded state of the battery and a difference in types of the battery. The estimating unit estimates an output parameter indicating the charged state of the battery by applying the input parameter to neural network calculation.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: June 30, 2009
    Assignees: Denso Corporation, Nippon Soken, Inc., National University Corporation Nagoya Institute of Technology
    Inventors: Satoru Mizuno, Atsushi Hashikawa, Shoji Sakai, Atsushi Ichikawa, Takaharu Kozawa, Naoki Mizuno, Yoshifumi Morita
  • Publication number: 20090062506
    Abstract: A catalyst obtained by calcining a hydrazone metal complex in which at least one catalytic metal species is coordinated to a hydrazone compound represented by a General Formula (1) below, a hydrazone polymer compound including at least a structural unit derived from a hydrazone compound represented by the General Formula (1) below as a repeating unit, and a catalyst obtained by calcining a hydrazone polymer metal complex in which at least one catalytic metal species is coordinated to a hydrazone polymer compound including at least a structural unit derived from a hydrazone compound represented by the General Formula (1) below: wherein, Py represents a 2-pyridyl group, a 3-pyridyl group, or a 4-pyridyl group.
    Type: Application
    Filed: August 29, 2008
    Publication date: March 5, 2009
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, NATIONAL UNIVERSITY CORPORATION NAGOYA INSTITUTE OF TECHNOLOGY
    Inventors: Hideki Masuda, Tatsuya Fujii, Haruyuki Nakanishi, Shinichi Matsumoto, Hidekazu Arikawa
  • Publication number: 20090057603
    Abstract: A magnetic induction foam molding apparatus comprising: a pair of electromagnet parts, each of which has a core part composed of a ferromagnet and a coil part placed on the outer circumference surface of the core part, and that are placed so as to face each other and depart from each other with a predetermined distance in the axis direction of the core part; a foaming mold interposed between the pair of electromagnet parts, inside which a cavity is defined; and a yoke part connecting back surfaces of the respective core parts of the pair of the electromagnet pats so as to form a magnetic path between a pair of the back surfaces. In the cavity of the foaming mold, a uniform magnetic field is formed.
    Type: Application
    Filed: August 21, 2008
    Publication date: March 5, 2009
    Applicants: TOKAI RUBBER INDUSTRIES, LTD., NATIONAL UNIVERSITY CORPORATION NAGOYA INSTITUTE OF TECHNOLOGY
    Inventors: Koji Tomiyama, Yasushi Ido
  • Publication number: 20080306655
    Abstract: There is provided a control apparatus that controls a motor of an electric power steering system to assist a steering effort of an operator. The control apparatus includes a sensor, a parameter computer, a difference computer, a target torque computer, and a motor driver. The parameter computer computes a current value of one of physical parameters of one of constituents of the electric power steering system based on a steering parameter determined by the sensor referring to an equation of motion. The difference computer computes a difference between the current value of the one of the physical parameters computed by the parameter computer and a predetermined value of the one of the physical parameters. The target torque computer computes a target torque of the motor which compensates for the difference between the current value and the predetermined value of the one of the physical parameters.
    Type: Application
    Filed: June 10, 2008
    Publication date: December 11, 2008
    Applicants: NATIONAL UNIVERSITY CORPORATION NAGOYA INSTITUTE OF TECHNOLOGY, DENSO CORPORATION
    Inventors: Hiroyuki Ukai, Yoshifumi Morita, Makoto Iwasaki, Nobuyuki Matsui, Norio Tsuchida, Yuya Yamamoto, Jiro Hayashi, Akihiko Sawada, Nobuhiko Makino
  • Publication number: 20080036309
    Abstract: A rocking actuator and a laser machining apparatus which can suppress a temperature rise of a permanent magnet in a moving-magnet actuator. Even when a steerable mirror is positioned by rapid and continuous motions, highly reliable machining can be performed without degrading machining throughput or hole position accuracy. A cooling jacket for cooling a casing and heat transfer units brought into contact with a coil and the casing are provided. Heat generated in the coil is introduced to the casing through the heat transfer bypass units. Thus, the temperature rise of the coil is suppressed. Radial grooves are provided in the permanent magnet opposed to the coil so as to prevent an eddy current from appearing therein. Groove depth is made not smaller than skin depth expressed by a function of volume resistivity and permeability of the permanent magnet and a fundamental frequency of a current applied to the coil.
    Type: Application
    Filed: August 3, 2007
    Publication date: February 14, 2008
    Applicants: Hitachi Via Mechanics, Ltd., National University Corporation Nagoya Institute of Technology
    Inventors: Souichi Toyama, Kounosuke Kitamura, Akira Doi, Hiromu Hirai, Kenta Seki, Yoshiaki Kano
  • Publication number: 20070270562
    Abstract: It is an object of the present invention to provide a siloxane-modified hyperbranched polyimide which has more excellent electric properties (low dielectric property), gas permeability, mechanical properties (low modulus), surface properties (adhesiveness) and the like while maintaining thermal stability, mechanical strength, chemical resistance and processability and the like intrinsic to polyimide and which may be variously functionalized and can be utilized advantageously in industrial applications. A siloxane structure represented by the following structural formula (1) is introduced into a three-dimensional structured hyperbranched polyimide molecule. (wherein R1 represents a hydrocarbon group having from 1 to 6 carbon atoms, and n indicates an integer of from 1 to 50).
    Type: Application
    Filed: July 24, 2007
    Publication date: November 22, 2007
    Applicant: National University Corporation Nagoya Institute of Technology
    Inventors: Yasuharu Yamada, Jun Sakai
  • Publication number: 20070192005
    Abstract: In a steering system having a variable gear transmission system and an electrical power steering system, respective compensation amounts for first and second electric motors are produced by a first mathematical model. The compensation amounts are added to command values (v1, v2) to generate final command signals (igref, ipref) to the respective electric motors. According to the above structure and operation, a mutual interference between two control systems can be suppressed.
    Type: Application
    Filed: February 1, 2007
    Publication date: August 16, 2007
    Applicants: Denso Corporation, National University Corporation Nagoya Institute of Technology
    Inventors: Hiroshi Ishikawa, Noriyuki Ido, Jirou Hayashi, Kazuhiro Ichikawa, Hiroyuki Ukai, Yoshifumi Morita, Makoto Iwasaki, Nobuyuki Matsui, Kentaro Torii
  • Publication number: 20070182505
    Abstract: A transmission line transition for coupling electromagnetic energy between different transmission lines includes first and second dielectric substrates laminated to each other and a waveguide tube attached to the first dielectric substrate. The laminated dielectric substrate provides a dielectric waveguide having a first end short-circuited and a second end communicating with a hollow interior of the waveguide tube. An antenna connected to a planar line is disposed in the dielectric waveguide and spaced from the short-circuited end of the dielectric waveguide by a predetermined distance in a longitudinal direction of the waveguide tube to excite and to be excited by the waveguide tube. The dielectric waveguide has a cross-sectional area smaller than that of the interior of the waveguide tube and coincides with the interior of the waveguide tube in the longitudinal direction.
    Type: Application
    Filed: February 7, 2007
    Publication date: August 9, 2007
    Applicants: DENSO Corporation, National University Corporation Nagoya Institute of Technology
    Inventors: Akihisa Fujita, Kunio Sakakibara
  • Patent number: 7245264
    Abstract: A high frequency module for converting a high frequency wave in a free space to a high frequency wave in a planar waveguide includes two metal plates, a dielectric substrate and a planar waveguide disposed on the dielectric substrate. The dielectric substrate between the two metal plates has the planar waveguide disposed thereon, and the planar waveguide protrudes either in a through hole bored in one of the two metal plates, or in a hollow space defined by the other of the two metal plates on the dielectric substrate.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: July 17, 2007
    Assignees: DENSO Corporation, National University Corporation Nagoya Institute of Technology
    Inventors: Kunio Sakakibara, Yutaka Aoki
  • Publication number: 20060276980
    Abstract: An apparatus and method of neural network type are provided to detect an internal state of a secondary battery implemented in a battery system. Electric signals indicating an operating state of the battery is detected and, using the electric signals, information indicating the internal state of the battery is calculated on the basis of neural network calculation, in which the information reflects a reduction in an effect of polarization of the secondary battery. Using the electric signals, input parameters required for calculating the internal state of the battery is calculated. The input parameters may include, as one input parameter, a polarization-related quantity to correct the effect of the polarization in an output parameter (such as SOC and/or SOH) from the neural network. Further, the input parameters may include, as one input parameter, a functional value already subjected to the correction for correcting the effect of the polarization.
    Type: Application
    Filed: April 20, 2006
    Publication date: December 7, 2006
    Applicants: DENSO CORPORATION, NIPPON SOKEN, INC., NATIONAL UNIVERSITY CORPORATION NAGOYA INSTITUTE OF TECHNOLOGY
    Inventors: Satoru Mizuno, Atsushi Hashikawa, Shoji Sakai, Takaharu Kozawa, Naoki Mizuno, Yoshifumi Morita
  • Publication number: 20060220974
    Abstract: A high frequency module for converting a high frequency wave in a free space to a high frequency wave in a planar waveguide includes two metal plates, a dielectric substrate and a planar waveguide disposed on the dielectric substrate. The dielectric substrate between the two metal plates has the planar waveguide disposed thereon, and the planar waveguide protrudes either in a through hole bored in one of the two metal plates, or in a hollow space defined by the other of the two metal plates on the dielectric substrate.
    Type: Application
    Filed: March 30, 2006
    Publication date: October 5, 2006
    Applicants: DENSO Corporation, National University Corporation Nagoya Institute Of Technology
    Inventors: Kunio Sakakibara, Yutaka Aoki
  • Publication number: 20060181245
    Abstract: A neural network type of apparatus is provided to detect an internal state of a secondary battery implemented in a battery system. The apparatus comprises a detecting unit, producing unit and estimating unit. The detecting unit detects electric signals indicating an operating state of the battery. The producing unit produces, using the electric signals, an input parameter required for estimating the internal state of the battery. The input parameter reflects calibration of a present charged state of the battery which is attributable to at least one of a present degraded state of the battery and a difference in types of the battery. The estimating unit estimates an output parameter indicating the charged state of the battery by applying the input parameter to neural network calculation.
    Type: Application
    Filed: February 14, 2006
    Publication date: August 17, 2006
    Applicants: DENSO CORPORATION, NIPPON SOKEN, INC., NATIONAL UNIVERSITY CORPORATION NAGOYA INSTITUTE OF TECHNOLOGY
    Inventors: Satoru Mizuno, Atsushi Hashikawa, Shoji Sakai, Atsushi Ichikawa, Takaharu Kozawa, Naoki Mizuno, Yoshifumi Morita