Patents by Inventor Masayoshi Takahashi

Masayoshi Takahashi 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).

  • Patent number: 9964907
    Abstract: An image forming apparatus includes a feeding unit, a regulation member, a detection unit, and a control unit. The feeding unit feeds a recording material from a storage unit to a conveying path. In the storage unit, the regulation member controls a trailing edge of the recording material in a feeding direction. The detection unit detects time until the recording material reaches a predetermined position along the conveying path after the feeding unit begins to feed the recording material. The control unit determines a state of the regulation member based on the detected time. Where the time detected by the detection unit is a value between a first threshold and a second threshold, which is larger than the first threshold, the control unit determines that the regulation member is shifting from a position corresponding to a size of the recording material in the feeding direction.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: May 8, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahiro Uehara, Hideyuki Matsubara, Tadashi Okanishi, Eijiro Ohashi, Masayoshi Takahashi
  • Patent number: 9948210
    Abstract: An electric power conversion device includes a capacitor package. The capacitor package includes a first positive electrode bus bar that is connected to a positive electrode of the inverter circuit unit and connected to a smoothing capacitor. The capacitor package also includes a second positive electrode bus bar that is connected to a positive electrode on a battery side of the converter circuit unit and connected to the another smoothing capacitor. On a first side thereof the negative electrode bus bar directly overlaps the entire first positive electrode.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: April 17, 2018
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Keisuke Fukumasu, Yosei Hara, Masayoshi Takahashi
  • Patent number: 9906158
    Abstract: A power conversion device possesses a capacitor module, a power module, a circuit board on which a control circuit is mounted and which has a ground layer formed in a control circuit mounting region, a noise shielding plate, and a metal housing. The circuit board is above the capacitor module, and the noise shielding plate faces the control circuit mounting region between the circuit board and the capacitor module, in which the noise shielding plate has a plurality of connection parts to be electrically connected to the metal housing. A first end part on the power module side of the noise shielding plate is on the power module side more than a second end part on the power module side of the ground layer, and the connection part which is the closest to the first end part is provided on the power module side more than the second end part.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: February 27, 2018
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Keisuke Fukumasu, Masayoshi Takahashi, Hideyuki Sakamoto
  • Patent number: 9866127
    Abstract: An electrical power converting device includes: a converter circuit part that includes a switching circuit and a transformer and converts a voltage between a voltage on a high voltage power source side and a voltage on a low voltage power source side in an unidirectional or bidirectional manner; a filter circuit part that is connected to a low-voltage side of the converter circuit part and includes an inductor and a capacitor; a control circuit board on which a control part is mounted, the control part controlling the switching circuit; and a metal housing in which an interior space of the housing is divided into a first accommodation space and a second accommodation space by a partition wall including a cooling liquid flow path, wherein the converter circuit part is arranged in the first accommodation space, and the filter circuit and the control circuit board are arranged in the second accommodation space.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: January 9, 2018
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Keisuke Fukumasu, Yoshiharu Yamashita, Masayoshi Takahashi
  • Patent number: 9827783
    Abstract: The detector that detects a light beam emitted from a light source of a second image forming device and reflected by a polygon mirror, and an adjustment device that performs adjustment processing of adjusting the velocity of the polygon mirror based on an output of the detector are provided. Before a first image forming device performs the image forming processing, the adjustment device performs the adjustment processing while causing the light source of the second image forming device to emit the light beam during a time period including at least a time period in which a photosensitive member of the second image forming device is emitted with the light beam. Before the adjustment processing is finished, the first image forming device starts to move a developing member to a developing position.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: November 28, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takayuki Mizuta, Masayoshi Takahashi
  • Patent number: 9803539
    Abstract: An internal-combustion engine includes a cylinder, a piston, a spark plug, and a fuel injection valve. The piston includes a top surface and a cavity provided in the top surface. The cavity includes a bottom surface, a vertical wall, a first sidewall, and a second sidewall. The fuel injection valve includes a plurality of injection ports from which a plurality of fuel mists are to be obliquely injected toward the top surface of the piston in respectively different directions at a predetermined crank angle in a compression stroke. The cavity extends from a position close to a center of the piston toward the fuel injection valve when viewed from above the top surface of the piston. The first and second sidewalls extend toward the fuel injection valve when viewed from above the top surface of the piston.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: October 31, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Hiroaki Sato, Yasuhiro Motohashi, Haruya Kitano, Masayoshi Takahashi, Hiromitsu Hirano, Shun Tanaka
  • Publication number: 20170210649
    Abstract: An object of the present invention is to provide a water containing permanganate ions that exist stably over a long period of time and a method for producing the water. A water containing permanganate ions of the present invention as a means for resolution is produced by dissolving 0.1 ?M to 1 mM of a divalent manganese compound, 0.1 ?M to 1 mM of an organic iron compound, and 1 to 300 mM of an inorganic salt in a water with ozone-microbubbles generated using an ozone gas at a concentration of 1 to 300 g/Nm3. The half-life of permanganate ions of the water containing permanganate ions of the present invention is 3 months or longer, for example, when the water filled in an airtight container under atmospheric pressure is stored under a temperature condition of 40° C., and has significantly different properties from a water containing permanganate ions that is produced by dissolving a permanganate compound in water, although the two waters share a common point of containing permanganate ions.
    Type: Application
    Filed: August 1, 2015
    Publication date: July 27, 2017
    Applicant: National Institute of Advanced Industrial Science and Technology
    Inventor: Masayoshi TAKAHASHI
  • Publication number: 20170210650
    Abstract: An object of the present invention is to provide an ozone water having enhanced storage stability and a method for producing the ozone water. An ozone water of the present invention as a means for resolution is produced by dissolving 0.1 ?M to 1 mM of an organic iron compound and 1 to 300 mM of an inorganic salt in a water with ozone-microbubbles generated using an ozone gas at a concentration of 1 to 300 g/Nm3. The half-life of ozone of the ozone water of the present invention is 3 days or longer, for example, when the water filled in an airtight container under atmospheric pressure is stored under a temperature condition of 40° C.
    Type: Application
    Filed: August 1, 2015
    Publication date: July 27, 2017
    Applicant: National Institute of Advanced Industrial Science and Technology
    Inventor: Masayoshi TAKAHASHI
  • Publication number: 20170194872
    Abstract: A power conversion device possesses a capacitor module, a power module, a circuit board on which a control circuit is mounted and which has a ground layer formed in a control circuit mounting region, a noise shielding plate, and a metal housing. The circuit board is above the capacitor module, and the noise shielding plate faces the control circuit mounting region between the circuit board and the capacitor module, in which the noise shielding plate has a plurality of connection parts to be electrically connected to the metal housing. A first end part on the power module side of the noise shielding plate is on the power module side more than a second end part on the power module side of the ground layer, and the connection part which is the closest to the first end part is provided on the power module side more than the second end part.
    Type: Application
    Filed: June 17, 2015
    Publication date: July 6, 2017
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Keisuke FUKUMASU, Masayoshi TAKAHASHI, Hideyuki SAKAMOTO
  • Patent number: 9697955
    Abstract: A capacitor device has an accommodating case in which a plurality of accommodating parts are formed for accommodating capacitor main bodies. The plurality of accommodating parts are oriented so that the longitudinal directions thereof all face the same direction, and the plurality of capacitor main bodies are accommodated in the accommodating parts in a manner such that the sides having terminal parts are set up in the same orientation. The sides of the capacitor main bodies having the terminal parts are provided with engaging parts that engage with engaged parts provided to a predetermined element member, and the capacitor main bodies are accommodated all together in the accommodating case in a manner such that the engaging parts are engaged with the engaged parts.
    Type: Grant
    Filed: November 22, 2012
    Date of Patent: July 4, 2017
    Assignees: NIPPON CHEMI-CON CORPORATION, MAZDA MOTOR CORPORATION
    Inventors: Ikufumi Honda, Hitoshi Ohara, Joji Obara, Seigo Suzuki, Masayoshi Takahashi, Akira Sone
  • Publication number: 20170187299
    Abstract: A power conversion apparatus is provided with a bus bar connecting a cable connected to an external power supply or load and an internal circuit. To provide this power conversion apparatus with a wiring structure for noise propagation suppression without use of a filter circuit element that causes increase in the volume of the apparatus, the bus bar is provided with an electromagnetic band gap structure. Electromagnetic noise is thereby suppressed from propagating from the power conversion apparatus to the power supply or the load via the cable.
    Type: Application
    Filed: June 26, 2015
    Publication date: June 29, 2017
    Applicant: Hitachi, Ltd.
    Inventors: Hiroki FUNATO, Masayoshi TAKAHASHI
  • Publication number: 20170125240
    Abstract: An object of the present invention is to provide a method for manufacturing a semiconductor, including a step of removing a photoresist present on a patterned wafer substrate and having a hardened modified layer, which is difficult to remove, formed on at least part of a top portion easily and effectively under mild conditions, and a method for cleaning a wafer substrate, including the above step. The method for manufacturing a semiconductor of the present invention as a means for resolution is characterized by comprising a step of bringing a patterned wafer substrate, on which a photoresist having a hardened modified layer formed on at least part of a top portion is present, into contact with a carbon dioxide dissolved water containing ozone-containing microbubbles, thereby removing the photoresist. In addition, the method for cleaning a wafer substrate of the present invention is characterized by comprising the above step.
    Type: Application
    Filed: March 31, 2015
    Publication date: May 4, 2017
    Applicants: National Institute of Advanced Industrial Science and Technology, OPT Creation Inc.
    Inventors: Masayoshi TAKAHASHI, Tsunejiro TAKAHASHI, Katsumi TATERA, Junichi IIDA
  • Patent number: 9618480
    Abstract: An apparatus and method for inspecting the quality of a weld under test in a structure having a plurality of spaced apart welds. Two probes are placed on opposite sides of the structure so that a current path is formed through the weld under test. The probes are energized with alternating current at a known frequency. The magnetic flux generated from the current flow through the probes and at least one of the spaced apart welds is then measured and subsequently compared with magnetic flux data previously determined and representing weld quality.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: April 11, 2017
    Assignee: Hitachi, Ltd.
    Inventors: Isao Hoda, Hua Zeng, Masayoshi Takahashi, Hiroki Funato
  • Publication number: 20170067854
    Abstract: An apparatus and method for inspecting the quality of a weld under test in a structure having a plurality of spaced apart welds. Two probes are placed on opposite sides of the structure so that a current path is formed through the weld under test. The probes are energized with alternating current at a known frequency. The magnetic flux generated from the current flow through the probes and at least one of the spaced apart welds is then measured and subsequently compared with magnetic flux data previously determined and representing weld quality.
    Type: Application
    Filed: September 8, 2015
    Publication date: March 9, 2017
    Inventors: Isao Hoda, Hua Zeng, Masayoshi Takahashi, Hiroki Funato
  • Publication number: 20170023900
    Abstract: The present invention improves productivity and usability by reducing the possibility of a conveying failure when regulation plates in a storage unit for a recording material are incorrectly set. An image forming apparatus includes a storage unit configured to store a recording material, a feeding unit configured to feed the recording material from the storage unit, a regulation member configured to control a downstream edge of the recording material in a feeding direction in the storage unit, a detection unit configured to detect time until the recording material reaches a position along the conveying path after the feeding unit begins to feed the recording material, and a control unit configured to determine a state of the regulation member on the basis of the time detected by the detection unit.
    Type: Application
    Filed: November 18, 2014
    Publication date: January 26, 2017
    Inventors: Masahiro Uehara, Hideyuki Matsubara, Tadashi Okanishi, Eijiro Ohashi, Masayoshi Takahashi
  • Publication number: 20170015207
    Abstract: Provided is a power conversion device capable of selectively suppressing harmonic noise in a frequency band and a machine equipped with the power conversion device. The power conversion device includes a switching element (13), a switching signal generation unit (23, 24) for generating a switching control signal for controlling the turning on/off of the switching element (13), and a control unit (18), and is characterized in that the switching control signal generation unit (23, 24) generates the switching control signal including a combination of a pair of symmetrical pulse waveforms having on and off periods that are interchanged with respect to a repeated cycle.
    Type: Application
    Filed: December 8, 2014
    Publication date: January 19, 2017
    Inventors: Isao HOUDA, Masayoshi TAKAHASHI, Hiroki FUNATO, Hitoshi AKIYAMA
  • Publication number: 20170005581
    Abstract: An electrical power converting device includes: a converter circuit part that includes a switching circuit and a transformer and converts a voltage between a voltage on a high voltage power source side and a voltage on a low voltage power source side in an unidirectional or bidirectional manner; a filter circuit part that is connected to a low-voltage side of the converter circuit part and includes an inductor and a capacitor; a control circuit board on which a control part is mounted, the control part controlling the switching circuit; and a metal housing in which an interior space of the housing is divided into a first accommodation space and a second accommodation space by a partition wall including a cooling liquid flow path, wherein the converter circuit part is arranged in the first accommodation space, and the filter circuit and the control circuit board are arranged in the second accommodation space.
    Type: Application
    Filed: January 26, 2015
    Publication date: January 5, 2017
    Inventors: Keisuke FUKUMASU, Yoshiharu YAMASHITA, Masayoshi TAKAHASHI
  • Publication number: 20160181940
    Abstract: A power conversion device includes: a metal housing; a power semiconductor module that is contained in the metal housing and converts direct electric current to alternating electric current; a capacitor module that is contained in the metal housing and arranged side by side with the power semiconductor module, wherein the capacitor module smoothes the direct electric current supplied to the power semiconductor module; a substrate that has a drive circuit part mounted in a first region, the drive circuit part driving the power semiconductor module, and a control circuit part mounted in a second region, the control circuit part controlling the drive circuit part, wherein the substrate is disposed so as to cover over the metal housing; a base plate that extends in a space in which the second region of the substrate and the capacitor module oppose to each other, and that is electrically connected to the metal housing; and a first noise shielding member that extends in a direction along a boundary between the firs
    Type: Application
    Filed: August 6, 2014
    Publication date: June 23, 2016
    Inventors: Masayoshi TAKAHASHI, Keisuke FUKUMASU, Yuki FUJITA, Takeshi KATO, Hiroki FUNATO
  • Publication number: 20160182001
    Abstract: A common mode noise filter adapted for connection in series between a noise source and a load having a first and second inductor connected in series respectively between the noise source and the load. A capacitor which exhibits stray inductance is connected in series with a third inductor having its other end connected to a junction of the first and second inductors. The first, second, and third inductors are selected and positioned relative to each other so that an absolute value of the third inductor and mutual inductance of the first, second, and third inductors minus the stray inductance of the capacitor is minimized.
    Type: Application
    Filed: December 19, 2014
    Publication date: June 23, 2016
    Inventors: Hua Zeng, Yoshiyuki Tsuchie, Masayoshi Takahashi, Hiroki Funato
  • Patent number: 9359638
    Abstract: According to one embodiment, a multi-nucleic-acid amplification reaction tool includes a support and a plurality of types of primer sets. The support is configured to be able to support a reaction field of a liquid phase. A plurality of types of primer sets are fixed in a releasable state, for each type, on mutually independent fixing regions of at least a surface of the support, which is in contact with the reaction field, when the liquid phase forms the reaction field. A plurality of types of primer sets are configured to amplify the respectively corresponding target sequences.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: June 7, 2016
    Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Masayoshi Takahashi, Koji Hashimoto, Masaru Nikaido, Nobuhiro Gemma, Jun Okada, Daiji Hirosawa, Keiichi Yamamoto, Tetsuya Kuwabara, Madoka Takase, Akiko Shimojo, Akiyoshi Nakamura