Patents by Inventor Kazumi Ohsato
Kazumi Ohsato 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: 8698364Abstract: Provided is an inverter-integrated electric compressor wherein the attachability of a coil component has been improved while reliability of a connection state at the electrical joints is ensured by simplifying a mechanism which electrically connects the coil component, such as one for removing electromagnetic noise, to a motor drive circuit.Type: GrantFiled: November 6, 2009Date of Patent: April 15, 2014Assignee: Sanden CorporationInventors: Atsushi Saito, Makoto Shibuya, Kazumi Ohsato
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Patent number: 8303271Abstract: An electric compressor integral with a drive circuit incorporates a compression mechanism section, a motor for driving the compression mechanism section, and a motor drive circuit. A refrigerant gas chamber having a refrigerant gas expansion space, into which refrigerant gas is introduced, is formed between a drive circuit installation section and a motor installation section, by a first partition wall provided on the drive circuit side and a second partition wall provided on the motor side, the side opposite the drive circuit side. The refrigerant gas chamber is interrupted by the first partition wall against the drive circuit installation section and is communicated with the motor installation section by a through hole that is provided in the second partition wall and through which the refrigerant gas can pass.Type: GrantFiled: August 27, 2008Date of Patent: November 6, 2012Assignee: Sanden CorporationInventors: Hideo Ikeda, Eiji Kobayashi, Kazumi Ohsato, Masanori Taguchi, Shigeyuki Koyama, Suguru Okazawa
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Publication number: 20110217190Abstract: Disclosed is a low-cost, inverter-integrated electric compressor with which a high degree of design freedom is maintained, high vibration resistance can be achieved by reliable anchoring of the circuit components, the weight can be reduced easily, and which has excellent operational stability. An inverter-integrated electric compressor has a built-in motor and has a substrate provided with a motor drive circuit including an inverter. In the inverter-integrated electric compressor, after electric components including the substrate have been fixed in a housing space surrounded by a compressor housing and have been assembled, the housing space is filled with an insulating resin, and at least a part of the electric components are sealed by the solidified filling resin.Type: ApplicationFiled: November 10, 2009Publication date: September 8, 2011Inventors: Jun Mizuno, Makoto Shibuya, Kazumi Ohsato, Toshimasa Shima, Eisuke Fujimura
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Publication number: 20110211980Abstract: Provided is a low-cost compressor having excellent operation stability which enables the improvement of the stability of a control circuit by shielding electromagnetic noise and the effective prevention of the vibration of a control substrate while the design flexibility is maintained at the same high level as that of conventional ones.Type: ApplicationFiled: November 6, 2009Publication date: September 1, 2011Inventors: Makoto Shibuya, Kazumi Ohsato, Kei Kurosaki
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Publication number: 20110211981Abstract: Provided is an inverter-integrated electric compressor excellent in joining strength and joining reliability at electrical joint. An inverter-integrated electric compressor wherein a motor is incorporated and a motor drive circuit including the inverter is surrounded by a compressor housing, characterized in that a bus bar joint section at which bus bars are electrically joined together is provided in the motor drive circuit, and a tip of at least one of the bus bars, the tip being located at the bus bar joint section, is split into small joining sections.Type: ApplicationFiled: November 6, 2009Publication date: September 1, 2011Applicant: Sanden CorporationInventors: Atsushi Saito, Makoto Shibuya, Kazumi Ohsato, Tadashi Kuribara
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Publication number: 20110206544Abstract: Provided is an inverter-integrated electric compressor wherein the attachability of a coil component has been improved while reliability of a connection state at the electrical joints is ensured by simplifying a mechanism which electrically connects the coil component, such as one for removing electromagnetic noise, to a motor drive circuit.Type: ApplicationFiled: November 6, 2009Publication date: August 25, 2011Inventors: Atsushi Saito, Makoto Shibuya, Kazumi Ohsato
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Publication number: 20110142695Abstract: The present invention provides an electric compressor in which a lead wire on the motor driving circuit side can be electrically connected positively to a sealed terminal. Because the sealed terminal is formed from a terminal body which is made of a metal having electrical conductivity and whose end is provided with a male threaded portion, and a joining nut made of a metal having electrical conductivity and which is different from the material for the terminal body, and is threadably mounted on the male threaded portion of the terminal body, it is possible to positively join the joining nut of a different material to the terminal body and to positively join the lead wire of the same material as the joining nut to the joining nut by welding, whereby it becomes possible to electrically connect a lead wire on the driving circuit housing chamber side positively to the sealed terminal.Type: ApplicationFiled: June 26, 2009Publication date: June 16, 2011Applicant: SANDEN CORPORATIONInventors: Masanori Taguchi, Kazumi Ohsato, Eiji Kobayashi, Tadashi Kuribara
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Publication number: 20100209266Abstract: An electric compressor integral with a drive circuit incorporates a compression mechanism section, a motor for driving the compression mechanism section, and a motor drive circuit. A refrigerant gas chamber having a refrigerant gas expansion space, into which refrigerant gas is introduced, is formed between a drive circuit installation section and a motor installation section, by a first partition wall provided on the drive circuit side and a second partition wall provided on the motor side, the side opposite the drive circuit side. The refrigerant gas chamber is interrupted by the first partition wall against the drive circuit installation section and is communicated with the motor installation section by a through hole that is provided in the second partition wall and through which the refrigerant gas can pass.Type: ApplicationFiled: August 27, 2008Publication date: August 19, 2010Inventors: Hideo Ikeda, Eiji Kobayashi, Kazumi Ohsato, Masanori Taguchi, Shigeyuki Koyama, Suguru Okazawa
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Patent number: 7083399Abstract: A motor-driven compressor includes a housing having a compression portion for compressing refrigerant, a motor for driving the compression portion, and a drive circuit for controlling the motor. A connection member having a plate shape is disposed at one end of the motor. The connection member connects a plurality of coils of the motor to the drive circuit. In such motor-driven compressors, because the rolling and bundling of electrical wires extending from coils to connect the drive circuit are not necessary, the size of the motor-driven compressor may be reduced.Type: GrantFiled: November 6, 2002Date of Patent: August 1, 2006Assignee: Sanden CorporationInventors: Tadashi Kurihara, Kazumi Ohsato, Seiichi Hoshino
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Publication number: 20030086800Abstract: A motor-driven compressor includes a housing having a compression portion for compressing refrigerant, a motor for driving the compression portion, and a drive circuit for controlling the motor. A connection member having a plate shape is disposed at one end of the motor. The connection member connects a plurality of coils of the motor to the drive circuit. In such motor-driven compressors, because the rolling and bundling of electrical wires extending from coils to connect the drive circuit are not necessary, the size of the motor-driven compressor may be reduced.Type: ApplicationFiled: November 6, 2002Publication date: May 8, 2003Inventors: Tadashi Kurihara, Kazumi Ohsato, Seiichi Hoshino
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Patent number: 5645477Abstract: This invention is directed to a change returning device employed in a coin mechanism of a vending machine. The change returning device is associated with a lower end of a change stacking tube, and includes a ring-shaped member capable of containing the lowest coin stacked within the tube. A block member is connected to a lower end surface of one peripheral portion the ring-shaped member. The block member is disposed on a sliding plate and engageable therewith. The sliding plate is slidably reciprocatingly disposed on a stationary member. A first sloped surface is formed at a part of an upper end surface of the stationary member and a second sloped surface is formed at a part of an upper end surface of the block member. An inclined vertical groove extends from a lower edge of the first sloped surface.Type: GrantFiled: May 17, 1996Date of Patent: July 8, 1997Assignee: Sanden CorporationInventors: Naoto Satoh, Kazumi Ohsato