Patents by Inventor Midori Futakawame
Midori Futakawame 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: 7251949Abstract: A refrigerant system 1D comprises a heat insulating housing 3 provided with an accommodating space inside and a refrigeration unit 9 attached to a lower portion of the heat insulating housing 3, in which a compressor 5, a gas cooler 6, an internal heat exchanger 10, a restriction means 16 and an evaporator 8 accommodated in a heat insulating case 7A are disposed on a unit base 4. The gas cooler 6 and the heat insulating case 7A are disposed so that air heat-exchanged by the gas cooler 6 moves toward the heat insulating case 7A, an air passage T is provided between the unit base 4 and the heat insulating case 7A, the air heat-exchanged by the gas cooler 6 is passed through the air passage T to be discharged outside, and the internal heat exchanger 10 is disposed in such a manner that it is embedded in a heat insulating material layer 7C provided around the heat insulating case 7A to be provided with a heat insulation property.Type: GrantFiled: February 8, 2005Date of Patent: August 7, 2007Assignee: Sanyo Electric Co., Ltd.Inventors: Masaji Yamanaka, Shigeya Ishigaki, Kenzo Matsumoto, Haruhisa Yamasaki, Midori Futakawame
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Patent number: 7223082Abstract: A so-called internal intermediate pressure multistage compression type rotary compressor makes it possible to prevent the pressure inside a roller from inconveniently increasing and also to permit smooth and reliable supply of oil into a cylinder of a second rotary compressing element by a relatively simple construction. A lubrication groove for providing communication between an oil bore and a low-pressure chamber in the cylinder is formed in a surface of an intermediate partitioner that is adjacent to the cylinder of the second rotary compressing element. Furthermore, a through bore for providing communication between a hermetically sealed vessel and the inside of the roller is formed in the intermediate partitioner.Type: GrantFiled: February 3, 2004Date of Patent: May 29, 2007Assignee: Sanyo Electric Co., Ltd.Inventors: Kazuya Sato, Kenzo Matsumoto, Kentaro Yamaguchi, Akifumi Tomiuka, Hiromasa Aoki, Midori Futakawame
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Publication number: 20050217296Abstract: A refrigerant system 1D comprises a heat insulating housing 3 provided with an accommodating space inside and a refrigeration unit 9 attached to a lower portion of the heat insulating housing 3, in which a compressor 5, a gas cooler 6, an internal heat exchanger 10, a restriction means 16 and an evaporator 8 accommodated in a heat insulating case 7A are disposed on a unit base 4. The gas cooler 6 and the heat insulating case 7A are disposed so that air heat-exchanged by the gas cooler 6 moves toward the heat insulating case 7A, an air passage T is provided between the unit base 4 and the heat insulating case 7A, the air heat-exchanged by the gas cooler 6 is passed through the air passage T to be discharged outside, and the internal heat exchanger 10 is disposed in such a manner that it is embedded in a heat insulating material layer 7C provided around the heat insulating case 7A to be provided with a heat insulation property.Type: ApplicationFiled: February 8, 2005Publication date: October 6, 2005Inventors: Masaji Yamanaka, Shigeya Ishigaki, Kenzo Matsumoto, Haruhisa Yamasaki, Midori Futakawame
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Publication number: 20040208769Abstract: A so-called internal intermediate pressure multistage compression type rotary compressor makes it possible to prevent the pressure inside a roller from inconveniently increasing and also to permit smooth and reliable supply of oil into a cylinder of a second rotary compressing element by a relatively simple construction. A lubrication groove for providing communication between an oil bore and a low-pressure chamber in the cylinder is formed in a surface of an intermediate partitioner that is adjacent to the cylinder of the second rotary compressing element. Furthermore, a through bore for providing communication between a hermetically sealed vessel and the inside of the roller is formed in the intermediate partitioner.Type: ApplicationFiled: February 3, 2004Publication date: October 21, 2004Inventors: Kazuya Sato, Kenzo Matsumoto, Kentaro Yamaguchi, Akifumi Tomiuka, Hiromasa Aoki, Midori Futakawame
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Publication number: 20040076537Abstract: An object of the present invention is to provide a multi-cylinder rotary compressor which can enhance the reliability by improving the compression efficiency/mechanical efficiency. The bearings are fixed on the inner wall of the closed container, the cylinders are fixed to the bearings, and a gap is formed between the respective cylinders and the inner wall of the closed container. The design with the relatively large internal volume of the closed container is possible, and the reliability can be enhanced. Further, improvement in the compression efficiency and the mechanical efficiency can be achieved with the compact multi-cylinder rotary compression element.Type: ApplicationFiled: October 9, 2003Publication date: April 22, 2004Inventors: Kenzo Matsumoto, Akira Hashimoto, Midori Futakawame, Masazumi Sakaniwa, Hiroyuki Sawabe
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Patent number: 6692242Abstract: An object of the present invention is to provide a multi-cylinder rotary compressor which can enhance the reliability by improving the compression efficiency/mechanical efficiency. The bearings are fixed on the inner wall of the closed container, the cylinders are fixed to the bearings, and a gap is formed between the respective cylinders and the inner wall of the closed container. The design with the relatively large internal volume of the closed container is possible, and the reliability can be enhanced. Further, improvement in the compression efficiency and the mechanical efficiency can be achieved with the compact multi-cylinder rotary compression element.Type: GrantFiled: July 19, 2002Date of Patent: February 17, 2004Assignee: Sanyo Electric Co., Ltd.Inventors: Kenzo Matsumoto, Akira Hashimoto, Midori Futakawame, Masazumi Sakaniwa, Hiroyuki Sawabe
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Patent number: 6676393Abstract: An object of the present invention is to provide a multi-cylinder rotary compressor which can enhance the reliability by improving the compression efficiency/mechanical efficiency. The bearings are fixed on the inner wall of the closed container, the cylinders are fixed to the bearings, and a gap is formed between the respective cylinders and the inner wall of the closed container. The design with the relatively large internal volume of the closed container is possible, and the reliability can be enhanced. Further, improvement in the compression efficiency and the mechanical efficiency can be achieved with the compact multi-cylinder rotary compression element.Type: GrantFiled: July 19, 2002Date of Patent: January 13, 2004Assignee: Sanyo Electric Co., Ltd.Inventors: Kenzo Matsumoto, Akira Hashimoto, Midori Futakawame, Masazumi Sakaniwa, Hiroyuki Sawabe
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Patent number: 6524086Abstract: An object of the present invention is to provide a multi-cylinder rotary compressor which can enhance the reliability by improving the compression efficiency/mechanical efficiency. The bearings are fixed on the inner wall of the closed container, the cylinders are fixed to the bearings, and a gap is formed between the respective cylinders and the inner wall of the closed container. The design with the relatively large internal volume of the closed container is possible, and the reliability can be enhanced. Further, improvement in the compression efficiency and the mechanical efficiency can be achieved with the compact multi-cylinder rotary compression element.Type: GrantFiled: August 23, 2001Date of Patent: February 25, 2003Assignee: Sanyo Electric Co., Ltd.Inventors: Kenzo Matsumoto, Akira Hashimoto, Midori Futakawame, Masazumi Sakaniwa, Hiroyuki Sawabe
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Publication number: 20020182096Abstract: An object of the present invention is to provide a multi-cylinder rotary compressor which can enhance the reliability by improving the compression efficiency/mechanical efficiency. The bearings are fixed on the inner wall of the closed container, the cylinders are fixed to the bearings, and a gap is formed between the respective cylinders and the inner wall of the closed container. The design with the relatively large internal volume of the closed container is possible, and the reliability can be enhanced. Further, improvement in the compression efficiency and the mechanical efficiency can be achieved with the compact multi-cylinder rotary compression element.Type: ApplicationFiled: July 19, 2002Publication date: December 5, 2002Applicant: Sanyo Electric Co. Ltd.Inventors: Kenzo Matsumoto, Akira Hashimoto, Midori Futakawame, Masazumi Sakaniwa, Hiroyuki Sawabe
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Publication number: 20020182095Abstract: An object of the present invention is to provide a multi-cylinder rotary compressor which can enhance the reliability by improving the compression efficiency/mechanical efficiency. The bearings are fixed on the inner wall of the closed container, the cylinders are fixed to the bearings, and a gap is formed between the respective cylinders and the inner wall of the closed container. The design with the relatively large internal volume of the closed container is possible, and the reliability can be enhanced. Further, improvement in the compression efficiency and the mechanical efficiency can be achieved with the compact multi-cylinder rotary compression element.Type: ApplicationFiled: July 19, 2002Publication date: December 5, 2002Applicant: Sanyo Electric Co. Ltd.Inventors: Kenzo Matsumoto, Akira Hashimoto, Midori Futakawame, Masazumi Sakaniwa, Hiroyuki Sawabe
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Publication number: 20020006344Abstract: An object of the present invention is to provide a multi-cylinder rotary compressor which can enhance the reliability by improving the compression efficiency/mechanical efficiency. The bearings are fixed on the inner wall of the closed container, the cylinders are fixed to the bearings, and a gap is formed between the respective cylinders and the inner wall of the closed container. The design with the relatively large internal volume of the closed container is possible, and the reliability can be enhanced. Further, improvement in the compression efficiency and the mechanical efficiency can be achieved with the compact multi-cylinder rotary compression element.Type: ApplicationFiled: August 23, 2001Publication date: January 17, 2002Applicant: Sanyo Electric Co., Ltd.Inventors: Kenzo Matsumoto, Akira Hashimoto, Midori Futakawame, Masazumi Sakaniwa, Hiroyuki Sawabe
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Patent number: 6336799Abstract: An object of the present invention is to provide a multi-cylinder rotary compressor which can enhance the reliability by improving the compression efficiency/mechanical efficiency. The bearings are fixed on the inner wall of the closed container, the cylinders are fixed to the bearings, and a gap is formed between the respective cylinders and the inner wall of the closed container. The design with the relatively large internal volume of the closed container is possible, and the reliability can be enhanced. Further, improvement in the compression efficiency and the mechanical efficiency can be achieved with the compact multi-cylinder rotary compression element.Type: GrantFiled: August 4, 2000Date of Patent: January 8, 2002Assignee: Sanyo Electric Co., Ltd.Inventors: Kenzo Matsumoto, Akira Hashimoto, Midori Futakawame, Masazumi Sakaniwa, Hiroyuki Sawabe