Patents by Inventor Mihoko Shimoji
Mihoko Shimoji 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: 10208750Abstract: A posture control unit (contact portion) that controls a posture of a balance weight-equipped slider so that a slider portion of the balance weight-equipped slider maintains the posture parallel to an orbiting bearing is provided at a position corresponding to a central portion in an axial direction of the orbiting bearing between an eccentric direction-side side surface of an eccentric shaft portion of a rotary shaft and an inner wall surface of a slide hole facing the side surface.Type: GrantFiled: May 8, 2015Date of Patent: February 19, 2019Assignee: Mitsubishi Electric CorporationInventors: Raito Kawamura, Shin Sekiya, Shinichi Wakamoto, Mihoko Shimoji, Hideaki Nagata
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Publication number: 20170082109Abstract: A posture control unit (contact portion 6f) that controls a posture of a balance weight-equipped slider 5 so that a slider portion 5a of the balance weight-equipped slider 5 maintains the posture parallel to an orbiting bearing 2d is provided at a position corresponding to a central portion in an axial direction of the orbiting bearing 2d between an eccentric direction-side side surface of an eccentric shaft portion 6a of a rotary shaft 6 and an inner wall surface of a slide hole 5aa facing the side surface.Type: ApplicationFiled: May 8, 2015Publication date: March 23, 2017Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Raito KAWAMURA, Shin SEKIYA, Shinichi WAKAMOTO, Mihoko SHIMOJI, Hideaki NAGATA
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Patent number: 9086230Abstract: In order to provide a refrigeration cycle device that is compact and efficiently utilizing an expansion machine and reduced in manufacturing cost through the use of a first compressor and second compressor driven by an expansion machine, a heat radiator and an on-off valve are disposed between the first and the second compressors and the second heat radiator is utilized irrespective of the operating mode such as the cooling or heating operation. Also, the heat transfer area ratio, which is a ratio of the heat transfer area of the second heat source side heat exchanger relative to the total heat transfer area of the heat transfer areas of said first and second heat source side heat exchangers, is set, according to the air speed distribution, within a range at which the COP is at its peak. Thus, the second heat source side heat exchanger can be utilized even during the heating operation, providing a high efficiency refrigeration cycle device.Type: GrantFiled: May 22, 2008Date of Patent: July 21, 2015Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Takashi Okazaki, Mihoko Shimoji, Shin Sekiya, Masayuki Kakuda, Takeshi Hatomura
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Patent number: 8511112Abstract: A refrigeration cycle apparatus which is capable of performing matching of the volumetric flow rate without performing pre-expansion it obtained. A refrigeration circuit includes a compression unit including a main compressor and a second compressor, a gas cooler, an expansion mechanism, and an evaporator interconnected with pipes, and a sub-compression mechanism driven by power recovered by the expansion mechanism, a suction side of the sub-compression mechanism is connected to a compression process of the compression unit, a discharge side of the sub-compression mechanism is connected to an inlet side of the gas cooler, and flow rate of refrigerant flowing into the sub-compression mechanism is controlled.Type: GrantFiled: May 28, 2010Date of Patent: August 20, 2013Assignee: Mitsubishi Electric CorporationInventors: Masayuki Kakuda, Fumihiko Ishizono, Hideaki Nagata, Naofumi Takenaka, Takashi Okazaki, Mihoko Shimoji, Shin Sekiya, Toshihide Koda
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Patent number: 8475149Abstract: A scroll fluid machine that suppresses fluctuations in a port aperture area during each revolution of an orbiting scroll. Suction ports for sucking in a working fluid are disposed on a second base plate to have openings in a vicinity of a winding start end portion of a second spiral tooth, and near an inward facing surface of the second spiral tooth at a position separated by an involute angle approximately 90° from the winding start end portion of the second spiral tooth. Discharge ports for discharging the working fluid are disposed on a first base plate to have openings in a vicinity of a winding start end portion of a first spiral tooth, and near an inward facing surface of the first spiral tooth at a position separated by an involute angle approximately 90° from the winding start end portion of the first spiral tooth.Type: GrantFiled: January 5, 2009Date of Patent: July 2, 2013Assignee: Mitsubishi Electric CorporationInventors: Masayuki Kakuda, Fumihiko Ishizono, Hideaki Nagata, Mihoko Shimoji, Shin Sekiya, Toshihide Koda
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Publication number: 20120060548Abstract: A refrigeration cycle apparatus which is capable of performing matching of the volumetric flow rate without performing pre-expansion it obtained. A refrigeration circuit includes a compression unit including a main compressor and a second compressor, a gas cooler, an expansion mechanism, and an evaporator interconnected with pipes, and a sub-compression mechanism driven by power recovered by the expansion mechanism, a suction side of the sub-compression mechanism is connected to a compression process of the compression unit, a discharge side of the sub-compression mechanism is connected to an inlet side of the gas cooler, and flow rate of refrigerant flowing into the sub-compression mechanism is controlled.Type: ApplicationFiled: May 28, 2010Publication date: March 15, 2012Applicant: Mitsubishi Electric CorporationInventors: Masayuki Kakuda, Fumihiko Ishizono, Hideaki Nagata, Naofumi Takenaka, Takashi Okazaki, Mihoko Shimoji, Shin Sekiya, Toshihide Koda
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Patent number: 8128388Abstract: A scroll-type expansion machine includes an expansion mechanism including an orbiting scroll and a first fixed scroll for expanding a refrigerant and recovering a power, a sub-expansion mechanism including an orbiting scroll and a second fixed scroll for compressing the refrigerant by the power recovered by the expansion mechanism, and a seal ring disposed in at least one of an outer circumference portion of the sub-compression mechanism or an outer circumference portion of the expansion mechanism. An oil flow path is opened in an upper space of a hermetic vessel to make the upper space and a lower space at a compressed pressure of the sub-compression mechanism, and the lower space is provided with an oil pipe for communicating with the main compressor.Type: GrantFiled: September 28, 2006Date of Patent: March 6, 2012Assignee: Mitsubishi Electric CorporationInventors: Mihoko Shimoji, Masayuki Kakuda, Toshihide Koda, Shin Sekiya, Fumihiko Ishizono, Tomokazu Matsui
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Publication number: 20110027114Abstract: A scroll fluid machine that suppresses fluctuations in a port aperture area during each revolution of an orbiting scroll. Suction ports for sucking in a working fluid are disposed on a second base plate to have openings in a vicinity of a winding start end portion of a second spiral tooth, and near an inward facing surface of the second spiral tooth at a position separated by an involute angle approximately 90° from the winding start end portion of the second spiral tooth. Discharge ports for discharging the working fluid are disposed on a first base plate to have openings in a vicinity of a winding start end portion of a first spiral tooth, and near an inward facing surface of the first spiral tooth at a position separated by an involute angle approximately 90° from the winding start end portion of the first spiral tooth.Type: ApplicationFiled: January 5, 2009Publication date: February 3, 2011Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Masayuki Kakuda, Fumihiko Ishizono, Hideaki Nagata, Mihoko Shimoji, Shin Sekiya, Toshihide Koda
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Publication number: 20100170295Abstract: In order to provide a refrigeration cycle device that is compact and efficiently utilizing an expansion machine and reduced in manufacturing cost through the use of a first compressor and second compressor driven by an expansion machine, a heat radiator and an on-off valve are disposed between the first and the second compressors and the second heat radiator is utilized irrespective of the operating mode such as the cooling or heating operation. Also, the heat transfer area ratio, which is a ratio of the heat transfer area of the second heat source side heat exchanger relative to the total heat transfer area of the heat transfer areas of said first and second heat source side heat exchangers, is set, according to the air speed distribution, within a range at which the COP is at its peak. Thus, the second heat source side heat exchanger can be utilized even during the heating operation, providing a high efficiency refrigeration cycle device.Type: ApplicationFiled: May 22, 2008Publication date: July 8, 2010Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takashi Okazaki, Mihoko Shimoji, Shin Sekiya, Masayuki Kakuda, Takeshi Hatomura
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Publication number: 20100014999Abstract: A scroll-type expansion machine includes an expansion mechanism including an orbiting scroll and a first fixed scroll for expanding a refrigerant and recovering a power, a sub-expansion mechanism including an orbiting scroll and a second fixed scroll for compressing the refrigerant by the power recovered by the expansion mechanism, and a seal ring disposed in at least one of an outer circumference portion of the sub-compression mechanism or an outer circumference portion of the expansion mechanism. An oil flow path is opened in an upper space of a hermetic vessel to make the upper space and a lower space at a compressed pressure of the sub-compression mechanism, and the lower space is provided with an oil pipe for communicating with the main compressor.Type: ApplicationFiled: September 28, 2006Publication date: January 21, 2010Applicant: Mitsubishi Electric CorporationInventors: Mihoko Shimoji, Masayuki Kakuda, Toshihide Koda, Shin Sekiya, Fumihiko Ishizono, Tomokazu Matsui
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Patent number: 6983790Abstract: A heat transport device includes a container having a hollow structure including a fluid channel, at least one thermal-receiver heat exchanger and one thermal-radiator heat exchanger arranged side-by-side on an outer wall of the container along the fluid channel, and driving heat exchangers at respective terminal portions of the container. In this heat transport device, both ends of the fluid channel are closed to prevent intrusion of external air, and a liquid and a gas are sealed in the fluid channel. The driving heat exchangers cause the liquid to oscillate in the container along the internal fluid channel. The heat transport device provides low acoustic noise performance, improved temperature controllability, high heat transportation and heat radiating capacities, and improved heat transfer and fluid flow characteristics.Type: GrantFiled: July 15, 2003Date of Patent: January 10, 2006Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Shigetoshi Ippoushi, Tetsuro Ogushi, Kazushige Nakao, Hiroaki Ishikawa, Toshiyuki Umemoto, Hiroshi Chiba, Mihoko Shimoji
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Publication number: 20050072559Abstract: A heat transport device includes a container having a hollow structure including a fluid channel, at least one thermal-receiver heat exchanger and one thermal-radiator heat exchanger arranged side-by-side on an outer wall of the container along the fluid channel, and driving heat exchangers at respective terminal portions of the container. In this heat transport device, both ends of the fluid channel are closed to prevent intrusion of external air, and a liquid and a gas are sealed in the fluid channel. The driving heat exchangers cause the liquid to oscillate in the container along the internal fluid channel. The heat transport device provides low acoustic noise performance, improved temperature controllability, high heat transportation and heat radiating capacities, and improved heat transfer and fluid flow characteristics.Type: ApplicationFiled: July 15, 2003Publication date: April 7, 2005Applicant: Mitsubishi Denki Kabushiki KaishaInventors: Shigetoshi Ippoushi, Tetsuro Ogushi, Kazushige Nakao, Hiroaki Ishikawa, Toshiyuki Umemoto, Hiroshi Chiba, Mihoko Shimoji
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Publication number: 20030161132Abstract: The conventional communication device has a problem in that it is difficult to efficiently lower the temperature of a heat generating element mounted on a printed substrate and also to lower a surface temperature of a housing.Type: ApplicationFiled: March 25, 2003Publication date: August 28, 2003Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventors: Mihoko Shimoji, Eiichi Ozaki, Kazushige Nakao, Tetsurou Ogushi, Koichi Hirao, Manabu Hasegawa, Takashi Kobayashi, Jiro Yoshizawa
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Patent number: 6570086Abstract: A communication device includes a communication circuit mounted on a printed substrate and having a heat generating element; a shield casing covering the communication circuit and shielding electromagnetic waves; a housing accommodating the shield casing and the printed substrate; a heat diffusing member mounted along an inner wall of the shield casing diffusing heat in a planar direction; and a heat insulating layer disposed between the shield casing and an inner wall of the housing.Type: GrantFiled: February 5, 2002Date of Patent: May 27, 2003Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Mihoko Shimoji, Eiichi Ozaki, Kazushige Nakao, Tetsurou Ogushi, Koichi Hirao, Manabu Hasegawa, Takashi Kobayashi, Jiro Yoshizawa
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Patent number: 5996372Abstract: An accumulator is capable of preventing an excessive enlargement of the flow rate of a liquid refrigerant which is discharged from the accumulator, reducing the quantity of refrigerating machine oil which is accumulated in the accumulator, and maintaining a required quantity of refrigerating machine oil in a compressor. Liquid and a gas which circulate in a refrigerating and air-conditioning circuit are introduced into a first space by a suction pipe, and the gas refrigerant is discharged to a refrigerating and air-conditioning circuit through a gas passage pipe, a second space and a discharge pipe 5. A liquid-level maintaining mechanism prevents a rise in the height of the accumulated liquid introduced into the first space. When the height has been made to be not lower than a predetermined height, a gas communication mechanism moves liquid in the first space from the first space to the second space.Type: GrantFiled: April 28, 1998Date of Patent: December 7, 1999Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Toshihide Koda, Masahiro Sugihara, Mihoko Shimoji, Naoki Tanaka, Hitoshi Iijima, Masaki Toyoshima
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Patent number: 5887444Abstract: In an accumulator constituting a refrigerating cycle apparatus, a high liquid-level auxiliary pipe (14a) and a low liquid-level auxiliary pipe (14b), which act as oil recovery pipes, and each of which is provided with a plurality of oil recovery holes (10a), are attached to a discharge pipe (12) in positions so as to be different vertically from each other, so that lubricating oil can be surely recovered through the oil recovery holes.Type: GrantFiled: July 16, 1997Date of Patent: March 30, 1999Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Masaki Toyoshima, Hitoshi Iijima, Naoki Tanaka, Toshihide Koda, Mihoko Shimoji
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Patent number: 5799503Abstract: In an accumulator, an oil collecting pipe is held in a sealed vessel with the lower end thereof closed, the pipe has a plurality of oil collecting apertures spaced in a vertical direction and a communication port for communicating with a discharge pipe. The communication port is disposed in the vicinity of the lowermost oil collecting aperture or to the downstream side of the aperture. Therefore, excessive liquid refrigerant flow from the accumulator is prevented even if a large amount of the liquid refrigerant resides in the sealed vessel.Type: GrantFiled: April 1, 1997Date of Patent: September 1, 1998Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Toshihide Koda, Mihoko Shimoji, Masahiro Sugihara, Naoki Tanaka, Hitoshi Iijima, Takeshi Izawa, Masaki Toyoshima