Patents by Inventor Yoshiyuki Futagami

Yoshiyuki Futagami 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).

  • Patent number: 10704541
    Abstract: A slide member of the present invention is used in a slide unit which is included in a refrigerant compressor for compressing a refrigerant and provided inside a sealed container which reserves lubricating oil therein. The slide member is provided with an oxide coating film on a surface of a base material. The oxide coating film is configured such that (1) when the base material comprises an iron based material, the oxide coating film has a three-layer structure including a first layer comprising Fe2O3, a second layer comprising Fe3O4, and a third layer comprising FeO in this order from an outermost surface, (2) the oxide coating film has a dense structure having minute concave/convex portions with a height difference which falls within a range of 0.01 ?m to 0.1 ?m, or (3) when the base material comprises the iron based material, the oxide coating film has a three-layer structure in which the three layers comprise the iron oxides and are different in hardness.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: July 7, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshinori Ishida, Hirotaka Kawabata, Hiroyuki Fukuhara, Yuichiro Kume, Yoshiyuki Futagami
  • Publication number: 20200109711
    Abstract: A scroll compressor includes a partition plate 20, a refrigerant intake tube 13 and a straightening plate 160, and a shielding plate 180 is provided at a height position between the partition plate 20 and an intake portion 38 of a fixed scroll 30. According to this, refrigerant sucked from the refrigerant intake tube 13 flows toward the partition plate 20 by the straightening plate 160, the refrigerant which flows toward the partition plate 20 collides against the shielding plate 180 before it is sucked by a compression mechanism 170 and therefore, it is possible to prevent refrigerant from coming into contact with the partition plate 20 having high temperature. According to this, the refrigerant is not heated by the partition plate 20, volumetric efficiency is enhanced and high efficiency of the compressor can be realized.
    Type: Application
    Filed: March 23, 2018
    Publication date: April 9, 2020
    Inventors: Yoshiyuki FUTAGAMI, Yusuke IMAI, Atsushi SAKUDA
  • Publication number: 20170009759
    Abstract: A synthetic resin film is formed on a region of a valve plate (117) which is brought into contact with an arm portion of a suction valve (120) or a region of the valve plate (117) which is brought into contact with an arm portion of a discharge valve (121). With such a configuration, delay in opening of the suction valve (120) or the discharge valve (121) caused by adhesion force of refrigerating oil is suppressed so that a pressure loss in a suction stroke or a discharge stroke can be reduced whereby compressor efficiency is enhanced. Further, a striking sound generated at the time of closing the suction valve (120) or the discharge valve (121) is reduced by an elastic effect of the synthetic resin film so that the reduction of noises is realized.
    Type: Application
    Filed: June 18, 2015
    Publication date: January 12, 2017
    Inventors: Shingo OYAGI, Yoshinori ISHIDA, Yoshiyuki FUTAGAMI
  • Patent number: 9284955
    Abstract: According to a compressor of the present invention, the compressor further comprises an oil separating mechanism 40 which separates oil from the refrigerant gas discharged from the compressing mechanism 10, the oil separating mechanism 40 includes a cylindrical space 41 in which the refrigerant gas orbits, an inflow portion 42 for flowing the refrigerant gas discharged from the compressing mechanism 10 into the cylindrical space 41, a sending-out port 43 for sending out, from the cylindrical space 41 to the one container space 32, the refrigerant gas from which the oil is separated, and an exhaust port 44 for discharging the separated oil and a portion of the refrigerant gas from the cylindrical space 41, and a center of the sending-out port 43 is deviated in a direction opposite from the inflow portion 42 from a center axis of the cylindrical space 41.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: March 15, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Takeshi Hiratsuka, Osamu Aiba, Takeshi Hashimoto, Akinori Fukuda, Shiho Furuya, Atsushi Sakuda, Yoshiyuki Futagami, Hiroyuki Kawano, Yusuke Imai, Takashi Morimoto, Tatsuya Nakamoto
  • Publication number: 20160017874
    Abstract: A slide member of the present invention is used in a slide unit which is included in a refrigerant compressor for compressing a refrigerant and provided inside a sealed container which reserves lubricating oil therein. The slide member is provided with an oxide coating film on a surface of a base material. The oxide coating film is configured such that (1) when the base material comprises an iron based material, the oxide coating film has a three-layer structure including a first layer comprising Fe2O3, a second layer comprising Fe3O4, and a third layer comprising FeO in this order from an outermost surface, (2) the oxide coating film has a dense structure having minute concave/convex portions with a height difference which falls within a range of 0.01 ?m to 0.1 ?m, or (3) when the base material comprises the iron based material, the oxide coating film has a three-layer structure in which the three layers comprise the iron oxides and are different in hardness.
    Type: Application
    Filed: February 15, 2013
    Publication date: January 21, 2016
    Inventors: Yoshinori ISHIDA, Hirotaka KAWABATA, Hiroyuki FUKUHARA, Yuichiro KUME, Yoshiyuki FUTAGAMI
  • Patent number: 9239052
    Abstract: A scroll compressor includes a back pressure chamber oil-feeding path for feeding lubricating oil from a high-pressure region to a back pressure chamber, and a compression chamber oil-feeding path for feeding lubricating oil from the back pressure chamber to a compression chamber. One phase in which the back pressure chamber oil-feeding path is communicated from the high-pressure region to the back pressure chamber and another phase in which the compression chamber oil-feeding path is communicated from the back pressure chamber to the compression chamber are shifted from each other, so that the back pressure chamber oil-feeding path and the compression chamber oil-feeding path are never put into the communicating state simultaneously. Thus, after a halt of the compressor, under-communication oil-feeding of the lubricating oil from the high-pressure region via the back pressure chamber to the compression chamber can be prevented.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: January 19, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Sadayuki Yamada, Atsushi Sakuda, Yoshiyuki Futagami, Takashi Morimoto, Nobuaki Ogawa, Yoshifumi Abe
  • Publication number: 20150300340
    Abstract: A contact member or a slide member of the present invention comprises a surface treatment film (160) including two or more coating layers stacked together, in at least a portion of a contact surface or a slide surface thereof, wherein each of the coating layers includes synthetic resin and a solid lubricant, and wherein the solid lubricant (162) of the coating layer located at an innermost side is lower in content percentage than the solid lubricant of the coating layer located at an outermost side. A contact member or a slide member of the present invention comprises a surface treatment film (160) including two or more coating layers stacked together, in at least a portion of a contact surface or a slide surface thereof, each of the coating layers includes synthetic resin, and the coating layer located at an innermost side is larger in elastic deformation amount than the coating layer located at an outermost side.
    Type: Application
    Filed: December 11, 2013
    Publication date: October 22, 2015
    Inventors: Yoshinori ISHIDA, Yoshiyuki FUTAGAMI, Hiroyuki FUKUHARA, Hirotaka KAWABATA, Masakazu YAMAOKA
  • Publication number: 20150300341
    Abstract: A compressor of the present invention comprises a cylinder (114) which accommodates a reciprocatable piston (116) therein; a valve plate (117) placed at an opening end of the cylinder (114) and includes a discharge valve seat (142) provided to surround a discharge hole (119); and a discharge valve (121) which opens and closes the discharge hole (119), wherein at least one of the discharge valve seat (142) and the discharge valve (121) is provided with a surface treatment film (160) including synthetic resin (171).
    Type: Application
    Filed: December 11, 2013
    Publication date: October 22, 2015
    Inventors: Yoshiyuki FUTAGAMI, Yoshinori ISHIDA, Hiroyuki FUKUHARA, Hirotaka KAWABATA, Masakazu YAMAOKA
  • Patent number: 9109598
    Abstract: According to a compressor of the present invention, the compressor further comprises an oil separating mechanism 40 which separates oil from the refrigerant gas discharged from the compressing mechanism 10, the oil separating mechanism 40 includes a cylindrical space 41 in which the refrigerant gas orbits, an inflow portion 42 for flowing the refrigerant gas discharged from the compressing mechanism 10 into the cylindrical space 41, a sending-out port 43 for sending out, from the cylindrical space 41 to the one container space 32, the refrigerant gas from which the oil is separated, and an exhaust port 44 for discharging the separated oil from the cylindrical space 41 into the other container space 32. According to this configuration, efficiency of the electric motor 20 is enhanced, volumetric efficiency is enhanced, and low oil circulation is realized.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: August 18, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Atsushi Sakuda, Yoshiyuki Futagami, Hiroyuki Kawano, Yusuke Imai, Takashi Morimoto, Osamu Aiba, Takeshi Hashimoto
  • Publication number: 20130129549
    Abstract: According to a compressor of the present invention, the compressor further comprises an oil separating mechanism 40 which separates oil from the refrigerant gas discharged from the compressing mechanism 10, the oil separating mechanism 40 includes a cylindrical space 41 in which the refrigerant gas orbits, an inflow portion 42 for flowing the refrigerant gas discharged from the compressing mechanism 10 into the cylindrical space 41, a sending-out port 43 for sending out, from the cylindrical space 41 to the one container space 32, the refrigerant gas from which the oil is separated, and an exhaust port 44 for discharging the separated oil from the cylindrical space 41 into the other container space 32. According to this configuration, efficiency of the electric motor 20 is enhanced, volumetric efficiency is enhanced, and low oil circulation is realized.
    Type: Application
    Filed: March 15, 2012
    Publication date: May 23, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Atsushi Sakuda, Yoshiyuki Futagami, Hiroyuki Kawano, Yusuke Imai, Takashi Morimoto, Osamu Aiba, Takeshi Hashimoto
  • Publication number: 20130039792
    Abstract: According to a compressor of the present invention, the compressor further comprises an oil separating mechanism 40 which separates oil from the refrigerant gas discharged from the compressing mechanism 10, the oil separating mechanism 40 includes a cylindrical space 41 in which the refrigerant gas orbits, an inflow portion 42 for flowing the refrigerant gas discharged from the compressing mechanism 10 into the cylindrical space 41, a sending-out port 43 for sending out, from the cylindrical space 41 to the one container space 32, the refrigerant gas from which the oil is separated, and an exhaust port 44 for discharging the separated oil and a portion of the refrigerant gas from the cylindrical space 41, and a center of the sending-out port 43 is deviated in a direction opposite from the inflow portion 42 from a center axis of the cylindrical space 41.
    Type: Application
    Filed: December 22, 2011
    Publication date: February 14, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Takeshi Hiratsuka, Osamu Aiba, Takeshi Hashimoto, Akinori Fukuda, Shiho Furuya, Atsushi Sakuda, Yoshiyuki Futagami, Hiroyuki Kawano, Yusuke Imai, Takashi Morimoto, Tatsuya Nakamoto
  • Publication number: 20120128518
    Abstract: A scroll compressor includes a back pressure chamber oil-feeding path for feeding lubricating oil from a high-pressure region to a back pressure chamber, and a compression chamber oil-feeding path for feeding lubricating oil from the back pressure chamber to a compression chamber. One phase in which the back pressure chamber oil-feeding path is communicated from the high-pressure region to the back pressure chamber and another phase in which the compression chamber oil-feeding path is communicated from the back pressure chamber to the compression chamber are shifted from each other, so that the back pressure chamber oil-feeding path and the compression chamber oil-feeding path are never put into the communicating state simultaneously.
    Type: Application
    Filed: June 9, 2011
    Publication date: May 24, 2012
    Inventors: Sadayuki Yamada, Atsushi Sakuda, Yoshiyuki Futagami, Takashi Morimoto, Nobuaki Ogawa, Yoshifumi Abe
  • Patent number: 7905715
    Abstract: a First gap (15) in a thrust direction between teeth bottoms of a fixed mirror plate (2b) and teeth tips of an orbiting lap (4a), and a second gap (16) in the thrust direction between teeth bottoms of an orbiting mirror plate 4b and teeth tips of a fixed lap (2a) are formed such as to gradually increase from an outer peripheral side to an inner peripheral side of a scroll compressor, the first gap (15) is made greater than the second gap (16). Contact surface pressures of the laps (2a) and (4a) are kept low with respect to pressure formation, contact pressure of the teeth tips of the fixed scroll part (2) and the teeth bottoms of the orbiting scroll part (4)are equally maintained. With this loads applied to the scroll parts (2) and (4)are equally received by a thrust surface.
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: March 15, 2011
    Assignee: Panasonic Corporation
    Inventors: Akira Hiwata, Yoshiyuki Futagami, Teruyuki Akazawa, Noboru Iida, Kiyoshi Sawai, Hidenobu Shintaku, Takashi Morimoto
  • Patent number: 7699591
    Abstract: A scroll compressor in which a scroll fixed lap rising from a fixed plate of a fixed scroll and a scroll orbiting lap rising from an orbiting plate of an orbiting scroll are combined with each other to form compression chambers therebetween, the fixed scroll is made of iron-based material, the orbiting scroll is made of aluminum-based material, at least the plate back surface of the orbiting scroll is subjected to surface processing.
    Type: Grant
    Filed: June 22, 2004
    Date of Patent: April 20, 2010
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshiyuki Futagami, Noboru Iida, Akira Hiwata, Hidenobu Shintaku
  • Patent number: 7614859
    Abstract: A back pressure chamber (12) provided on a back surface of an orbiting scroll (5) is divided into an inner region (12a) and an outer region (12b) by an annular seal (11). A diameter d of the annular seal (11) is set 0.5 times or more of a diameter D of an orbiting mirror plate (5a). With this, plus thrust force can be applied to the orbiting scroll (5) irrespective of magnitude of a discharge pressure Pd applied to the inner region (12a). Therefore, it is possible to push the orbiting scroll (5) against the fixed scroll (4) only by back pressure of discharge pressure. A set pressure Pm of the outer region (12b) is reduced to a value close to a suction pressure Ps, a pressure adjusting mechanism (20) is swiftly opened after a scroll compressor is started. With this, lubricant oil is supplied from the outer region (12b) to the suction space (9) without a time lag.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: November 10, 2009
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kiyoshi Sawai, Noboru Iida, Yoshiyuki Futagami, Akira Hiwata, Teruyuki Akazawa
  • Patent number: 7458789
    Abstract: According to the present invention, an oil supply passage is formed in a suction space of a fixed scroll part, and an oil collision part is provided in the suction space. The oil collision part is provided in the suction space, an amount of oil to be supplied is controlled, refrigerant and lubricant oil are sufficiently mixed with each other. Tangents of ends of the oil collision part are made acute angle to smoothen the flow of the refrigerant.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: December 2, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Akira Hiwata, Takashi Morimoto, Yoshiyuki Futagami, Noboru Iida, Kiyoshi Sawai
  • Publication number: 20080038133
    Abstract: A back pressure chamber 12 provided on a back surface of an orbiting scroll 5 is divided into an inner region 12a and an outer region 12b by an annular seal 11. A diameter d of the annular seal 11 is set 0.5 times or more of a diameter D of an orbiting mirror plate 5a. With this, plus thrust force can be applied to the orbiting scroll 5 irrespective of magnitude of a discharge pressure Pd applied to the inner region 12a. Therefore, it is possible to push the orbiting scroll 5 against the fixed scroll 4 only by back pressure of discharge pressure. A set pressure Pm of the outer region 12b is reduced to a value close to a suction pressure Ps, a pressure adjusting mechanism 20 is swiftly opened after a scroll compressor is started. With this, lubricant oil is supplied from the outer region 12b to the suction space 9 without a time lag.
    Type: Application
    Filed: June 9, 2004
    Publication date: February 14, 2008
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kiyoshi Sawai, Noboru Iida, Yoshiyuki Futagami, Akira Hiwata, Teruyuki Akazawa
  • Publication number: 20070212244
    Abstract: A scroll compressor in which a scroll fixed lap rising from a fixed plate of a fixed scroll and a scroll orbiting lap rising from an orbiting plate of an orbiting scroll are combined with each other to form compression chambers therebetween, the fixed scroll is made of iron-based material, the orbiting scroll is made of aluminum-based material, at least the plate back surface of the orbiting scroll is subjected to surface processing.
    Type: Application
    Filed: June 22, 2004
    Publication date: September 13, 2007
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Yoshiyuki Futagami, Noboru Iida, Akira Hiwata, Hidenobu Shintaku
  • Publication number: 20070201997
    Abstract: According to the present invention, an oil supply passage is formed in a suction space of a fixed scroll part, and an oil collision part is provided in the suction space. The oil collision part is provided in the suction space, an amount of oil to be supplied is controlled, refrigerant and lubricant oil are sufficiently mixed with each other. Tangents of ends of the oil collision part are made acute angle to smoothen the flow of the refrigerant.
    Type: Application
    Filed: June 9, 2004
    Publication date: August 30, 2007
    Inventors: Akira Hiwata, Takashi Morimoto, Yoshiyuki Futagami, Noboru Iida, Kiyoshi Sawai
  • Publication number: 20070178002
    Abstract: a First gap 15 in a thrust direction between teeth bottoms of a fixed mirror plate 2b and teeth tips of an orbiting lap 4a, and a second gap 16 in the thrust direction between teeth bottoms of an orbiting mirror plate 4b and teeth tips of a fixed lap 2a are formed such as to gradually increase from an outer peripheral side to an inner peripheral side of a scroll compressor, the first gap 15 is made greater than the second gap 16. Contact surface pressures of the laps 2a and 4a are kept low with respect to pressure deformation, contact pressure of the teeth tips of the fixed scroll part 2 and the teeth bottoms of the orbiting scroll part 4 are equally maintained. With this loads applied to the scroll parts 2 and 4 are equally received by a thrust surface.
    Type: Application
    Filed: June 15, 2004
    Publication date: August 2, 2007
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Akira Hiwata, Yoshiyuki Futagami, Teruyuki Akazawa, Noboru Iida, Kiyoshi Sawai, Hidenobu Shintaku, Takashi Morimoto