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).
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Patent number: 9964907Abstract: 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: GrantFiled: November 18, 2014Date of Patent: May 8, 2018Assignee: Canon Kabushiki KaishaInventors: Masahiro Uehara, Hideyuki Matsubara, Tadashi Okanishi, Eijiro Ohashi, Masayoshi Takahashi
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Patent number: 9948210Abstract: 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: GrantFiled: January 27, 2014Date of Patent: April 17, 2018Assignee: Hitachi Automotive Systems, Ltd.Inventors: Keisuke Fukumasu, Yosei Hara, Masayoshi Takahashi
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Patent number: 9906158Abstract: 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: GrantFiled: June 17, 2015Date of Patent: February 27, 2018Assignee: Hitachi Automotive Systems, Ltd.Inventors: Keisuke Fukumasu, Masayoshi Takahashi, Hideyuki Sakamoto
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Patent number: 9866127Abstract: 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: GrantFiled: January 26, 2015Date of Patent: January 9, 2018Assignee: Hitachi Automotive Systems, Ltd.Inventors: Keisuke Fukumasu, Yoshiharu Yamashita, Masayoshi Takahashi
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Patent number: 9827783Abstract: 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: GrantFiled: November 30, 2015Date of Patent: November 28, 2017Assignee: CANON KABUSHIKI KAISHAInventors: Takayuki Mizuta, Masayoshi Takahashi
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Patent number: 9803539Abstract: 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: GrantFiled: November 20, 2012Date of Patent: October 31, 2017Assignee: HONDA MOTOR CO., LTD.Inventors: Hiroaki Sato, Yasuhiro Motohashi, Haruya Kitano, Masayoshi Takahashi, Hiromitsu Hirano, Shun Tanaka
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Publication number: 20170210649Abstract: 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: ApplicationFiled: August 1, 2015Publication date: July 27, 2017Applicant: National Institute of Advanced Industrial Science and TechnologyInventor: Masayoshi TAKAHASHI
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Publication number: 20170210650Abstract: 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: ApplicationFiled: August 1, 2015Publication date: July 27, 2017Applicant: National Institute of Advanced Industrial Science and TechnologyInventor: Masayoshi TAKAHASHI
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Publication number: 20170194872Abstract: 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: ApplicationFiled: June 17, 2015Publication date: July 6, 2017Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Keisuke FUKUMASU, Masayoshi TAKAHASHI, Hideyuki SAKAMOTO
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Patent number: 9697955Abstract: 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: GrantFiled: November 22, 2012Date of Patent: July 4, 2017Assignees: NIPPON CHEMI-CON CORPORATION, MAZDA MOTOR CORPORATIONInventors: Ikufumi Honda, Hitoshi Ohara, Joji Obara, Seigo Suzuki, Masayoshi Takahashi, Akira Sone
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Publication number: 20170187299Abstract: 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: ApplicationFiled: June 26, 2015Publication date: June 29, 2017Applicant: Hitachi, Ltd.Inventors: Hiroki FUNATO, Masayoshi TAKAHASHI
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Publication number: 20170125240Abstract: 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: ApplicationFiled: March 31, 2015Publication date: May 4, 2017Applicants: National Institute of Advanced Industrial Science and Technology, OPT Creation Inc.Inventors: Masayoshi TAKAHASHI, Tsunejiro TAKAHASHI, Katsumi TATERA, Junichi IIDA
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Patent number: 9618480Abstract: 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: GrantFiled: September 8, 2015Date of Patent: April 11, 2017Assignee: Hitachi, Ltd.Inventors: Isao Hoda, Hua Zeng, Masayoshi Takahashi, Hiroki Funato
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Publication number: 20170067854Abstract: 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: ApplicationFiled: September 8, 2015Publication date: March 9, 2017Inventors: Isao Hoda, Hua Zeng, Masayoshi Takahashi, Hiroki Funato
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Publication number: 20170023900Abstract: 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: ApplicationFiled: November 18, 2014Publication date: January 26, 2017Inventors: Masahiro Uehara, Hideyuki Matsubara, Tadashi Okanishi, Eijiro Ohashi, Masayoshi Takahashi
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Publication number: 20170015207Abstract: 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: ApplicationFiled: December 8, 2014Publication date: January 19, 2017Inventors: Isao HOUDA, Masayoshi TAKAHASHI, Hiroki FUNATO, Hitoshi AKIYAMA
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Publication number: 20170005581Abstract: 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: ApplicationFiled: January 26, 2015Publication date: January 5, 2017Inventors: Keisuke FUKUMASU, Yoshiharu YAMASHITA, Masayoshi TAKAHASHI
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Publication number: 20160181940Abstract: 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 firsType: ApplicationFiled: August 6, 2014Publication date: June 23, 2016Inventors: Masayoshi TAKAHASHI, Keisuke FUKUMASU, Yuki FUJITA, Takeshi KATO, Hiroki FUNATO
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Publication number: 20160182001Abstract: 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: ApplicationFiled: December 19, 2014Publication date: June 23, 2016Inventors: Hua Zeng, Yoshiyuki Tsuchie, Masayoshi Takahashi, Hiroki Funato
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Patent number: 9359638Abstract: 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: GrantFiled: February 5, 2014Date of Patent: June 7, 2016Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATIONInventors: Masayoshi Takahashi, Koji Hashimoto, Masaru Nikaido, Nobuhiro Gemma, Jun Okada, Daiji Hirosawa, Keiichi Yamamoto, Tetsuya Kuwabara, Madoka Takase, Akiko Shimojo, Akiyoshi Nakamura