Patents by Inventor Mie Arai
Mie Arai 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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Publication number: 20150337837Abstract: A scroll member for a compression mechanism installed in a scroll compressor is manufactured by a method including a casting step and a cutting step. An iron casting is formed in the casting step, which includes a spiraling part. The iron casting obtained in the casting step is cut during the cutting step in order to obtain a final shape of the scroll member. The iron casting may include a fixed part having a central portion with a first axial thickness and an external periphery portion with a second axial thickness larger than the first axial thickness before the cutting step. A dimension of a specified portion of the spiraling part may be larger before the cutting step is performed than after the cutting step is performed, with the specified portion preferably disposed toward an external periphery of the spiraling part.Type: ApplicationFiled: August 3, 2015Publication date: November 26, 2015Inventors: Yasuhiro MURAKAMI, Mikio KAJIWARA, Mitsuhiko KISHIKAWA, Hiroyuki YAMAJI, Mie ARAI, Satoshi YAMAMOTO
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Patent number: 9133844Abstract: A method of manufacturing a scroll member for a compression mechanism installed in a scroll compressor includes a casting step and a cutting step. An iron casting is formed in the casting step, which includes a spiraling part. The iron casting obtained in the casting step is cut during the cutting step in order to obtain a final shape of the scroll member. The iron casting may include a fixed part having a central portion with a first axial thickness and an external periphery portion with a second axial thickness larger than the first axial thickness before the cutting step. A dimension of a specified portion of the spiraling part may be larger before the cutting step is performed than after the cutting step is performed, with the specified portion preferably disposed toward an external periphery of the spiraling part.Type: GrantFiled: March 27, 2008Date of Patent: September 15, 2015Assignee: Daikin Industries, Ltd.Inventors: Yasuhiro Murakami, Mikio Kajiwara, Mitsuhiko Kishikawa, Hiroyuki Yamaji, Mie Arai
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Patent number: 8690558Abstract: The compressor includes a first constituent element and a first slider. The first constituent element is capable of being laser welded. The first slider is composed of cast iron capable of being laser welded and having a carbon content of from 2.0 wt % or more to 2.7 wt % or less. This first slider is joined to the first constituent element by laser welding without using a filler.Type: GrantFiled: April 3, 2012Date of Patent: April 8, 2014Assignee: Daikin Industries, Ltd.Inventors: Mitsuhiko Kishikawa, Takashi Hirouchi, Hiroyuki Yamaji, Mikio Kajiwara, Satoshi Yamamoto, Mie Arai
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Patent number: 8512017Abstract: A compression mechanism is configured to be used in a scroll compressor. The compression mechanism includes a fixed scroll and a movable scroll. One of the fixed scroll and the movable scroll is a cast iron molding fabricated through semi-molten die casting, and the other of the fixed scroll and the movable scroll is a grey iron casting.Type: GrantFiled: August 5, 2008Date of Patent: August 20, 2013Assignee: Daikin Industries, Ltd.Inventors: Satoshi Yamamoto, Mikio Kajiwara, Mitsuhiko Kishikawa, Hiroyuki Yamaji, Mie Arai, Yasuhiro Murakami
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Patent number: 8402649Abstract: A method of manufacturing a scroll member includes a casting step and a cutting step. In the casting step an iron casting having a spiraling part is formed. In the cutting step, the iron casting obtained in the casting step is cut to obtain a final shape of the scroll member. Preferably the iron casting obtained in the casting step has a fixing part with the spiraling part extending from one side and a protruding part extending from an opposite side. A specified portion of the spiraling part, a central portion of the fixing part and/or the protruding part has a larger dimension before the cutting step is performed than after the cutting step is performed.Type: GrantFiled: March 26, 2008Date of Patent: March 26, 2013Assignee: Daikin Industries, Ltd.Inventors: Yasuhiro Murakami, Mikio Kajiwara, Mitsuhiko Kishikawa, Hiroyuki Yamaji, Mie Arai, Satoshi Yamamoto
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Patent number: 8366425Abstract: A compressor slider has a carbon content of 2.0 wt % to 2.7 wt %, a silicon content of 1.0 wt % to 3.0 wt %, a balance of iron that includes unavoidable impurities, graphite that is smaller than the flake graphite of flake graphite cast iron, and a hardness that is greater than HRB 90 but less than HRB 100 in at least a portion of the slider.Type: GrantFiled: February 26, 2007Date of Patent: February 5, 2013Assignee: Daikin Industries, Ltd.Inventors: Mie Arai, Hiroyuki Yamaji, Mitsuhiko Kishikawa, Satoshi Yamamoto, Mikio Kajiwara, Takashi Hirouchi, Yasuhiro Murakami, Masanori Masuda, Kazuhiro Furusho
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Publication number: 20120189482Abstract: The compressor includes a first constituent element and a first slider. The first constituent element is capable of being laser welded. The first slider is composed of cast iron capable of being laser welded and having a carbon content of from 2.0 wt % or more to 2.7 wt % or less. This first slider is joined to the first constituent element by laser welding without using a filler.Type: ApplicationFiled: April 3, 2012Publication date: July 26, 2012Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Mitsuhiko KISHIKAWA, Takashi HIROUCHI, Hiroyuki YAMAJI, Mikio KAJIWARA, Satoshi YAMAMOTO, Mie ARAI
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Patent number: 8167596Abstract: The compressor includes a first constituent element and a first slider. The first constituent element is capable of being laser welded. The first slider is composed of cast iron capable of being laser welded and having a carbon content of from 2.0 wt % or more to 2.7 wt % or less. This first slider is joined to the first constituent element by laser welding without using a filler.Type: GrantFiled: March 2, 2007Date of Patent: May 1, 2012Assignee: Daikin Industries, Ltd.Inventors: Mitsuhiko Kishikawa, Takashi Hirouchi, Hiroyuki Yamaji, Mikio Kajiwara, Satoshi Yamamoto, Mie Arai
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Publication number: 20100284844Abstract: A method for manufacturing a compressor slider includes a slider preform manufacturing step, a resin coating step, and a machining step. In the slider preform manufacturing step, an iron slider preform in which at least one property selected from the tensile strength and the tensile modulus of elasticity is greater than that of flake graphite cast iron is manufactured using a prescribed mold. In the resin coating step, the slider preform is not machined, but the resin coating layer is formed on all or a part of the slider preform. In the machining step, only the resin coating layer is machined, and a completed slider is obtained.Type: ApplicationFiled: January 25, 2007Publication date: November 11, 2010Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Hiroyuki Yamaji, Mikio Kajiwara, Mitsuhiko Kishikawa, Takashi Hirouchi, Mie Arai
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Publication number: 20100202910Abstract: A compression mechanism is configured to be used in a scroll compressor. The compression mechanism includes a fixed scroll and a movable scroll. One of the fixed scroll and the movable scroll is a cast iron molding fabricated through semi-molten die casting, and the other of the fixed scroll and the movable scroll is a grey iron casting.Type: ApplicationFiled: August 5, 2008Publication date: August 12, 2010Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Satoshi Yamamoto, Mikio Kajiwara, Mitsuhiko Kishikama, Hiroyuki Yamaji, Mie Arai, Yasuhiro Murakami
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Publication number: 20100111738Abstract: A method of manufacturing a scroll member for a compression mechanism installed in a scroll compressor includes a casting step and a cutting step. An iron casting is formed in the casting step, which includes a spiraling part. The iron casting obtained in the casting step is cut during the cutting step in order to obtain a final shape of the scroll member. The iron casting may include a fixed part having a central portion with a first axial thickness and an external periphery portion with a second axial thickness larger than the first axial thickness before the cutting step. A dimension of a specified portion of the spiraling part may be larger before the cutting step is performed than after the cutting step is performed, with the specified portion preferably disposed toward an external periphery of the spiraling part.Type: ApplicationFiled: March 27, 2008Publication date: May 6, 2010Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Yasuhiro Murakami, Mikio Kajiwara, Mitsuhiko Kishikawa, Hiroyuki Yamaji, Mie Arai
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Publication number: 20100111739Abstract: A method of manufacturing a scroll member includes a casting step and a cutting step. In the casting step an iron casting having a spiraling part is formed. In the cutting step, the iron casting obtained in the casting step is cut to obtain a final shape of the scroll member. Preferably the iron casting obtained in the casting step has a fixing part with the spiraling part extending from one side and a protruding part extending from an opposite side. A specified portion of the spiraling part, a central portion of the fixing part and/or the protruding part has a larger dimension before the cutting step is performed than after the cutting step is performed.Type: ApplicationFiled: March 26, 2008Publication date: May 6, 2010Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Yasuhiro Murakami, Mikio Kajiwara, Mitsuhiko Kishikawa, Hiroyuki Yamaji, Mie Arai, Satoshi Yamamoto
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Publication number: 20100061871Abstract: A compressor slider has a carbon content of 2.0 wt % to 2.7 wt %, a silicon content of 1.0 wt % to 3.0 wt %, a balance of iron that includes unavoidable impurities, graphite that is smaller than the flake graphite of flake graphite cast iron, and a hardness that is greater than HRB 90 but less than HRB 100 in at least a portion of the slider.Type: ApplicationFiled: February 26, 2007Publication date: March 11, 2010Applicant: DAIKIN INSUDTRIES, LTDInventors: Mie Arai, Hiroyuki Yamaji, Mitsuhiko Kishikawa, Satoshi Yamamoto, Mikio Kajiwara, Takashi Hirouchi, Yasuhiro Murakami, Masanori Masuda, Kazuhiro Furusho
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Publication number: 20090068046Abstract: The compressor includes a first constituent element and a first slider. The first constituent element is capable of being laser welded. The first slider is composed of cast iron capable of being laser welded and having a carbon content of from 2.0 wt % or more to 2.7 wt % or less. This first slider is joined to the first constituent element by laser welding without using a filler.Type: ApplicationFiled: March 2, 2007Publication date: March 12, 2009Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Mitsuhiko Kishikawa, Takashi Hirouchi, Hiroyuki Yamaji, Mie Arai, Mikio Kajiwara, Satoshi Yamamoto
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Publication number: 20090038150Abstract: A method for producing a compressor comprises an aligning step and a welding step. The compressor includes a casing and an inside part that is housed in the casing. The casing includes a first portion on its inner surface, and the inside part includes a second portion. The second portion faces the first portion. In the aligning step, the first portion and the second portion are caused to face each other. In the laser welding step, laser light is applied to at least part of the portion where the first portion and the second portion face each other, whereby the casing and the inside part are laser-welded together.Type: ApplicationFiled: March 5, 2007Publication date: February 12, 2009Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Mitsuhiko Kishikawa, Takashi Hirouchi, Mikio Kajiwara, Hiroyuki Yamaji, Satoshi Yamamoto, Mie Arai