Patents by Inventor Masashi Miyake

Masashi Miyake 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).

  • Publication number: 20140234148
    Abstract: A scroll compressor configures suction and compression rooms between fixed and orbiting scrolls, includes a back pressure room at the orbiting scroll base plate back face, and is configured in an asymmetric tooth shape. A fluid outflow path for an orbiting scroll lap external line side compression room and a fluid outflow path for an internal line side compression room are configured on an orbiting scroll base plate, and outlet side openings of the respective fluid outflow paths are opened to an orbiting lap tooth bottom. Inlet side openings of the respective fluid outflow paths are opened to the orbiting scroll base plate face sliding with the fixed scroll, and a fixed scroll base plate face is configured with a communicating section control groove for intermittently communicating the inlet side openings of the respective fluid outflow paths and the back pressure room in accordance with an orbiting movement.
    Type: Application
    Filed: February 11, 2014
    Publication date: August 21, 2014
    Applicant: Hitachi Appliances, Inc.
    Inventors: Hiromu TAKEDA, Masaru OHTAHARA, Shoji MATSUMURA, Masashi MIYAKE
  • Publication number: 20110129378
    Abstract: The inside of a sealed container (50) of a horizontal scroll compressor is partitioned by a partition plate (80) into a space in which a compressor mechanism section and an electric motor are contained and into a discharge space (84) in which a discharge pipe (52) and an oil supply pump (70) are contained. An upper communication path (85) and a path guide member (81) are provided in the upper part of the partition plate, and a refrigerant gas passes through the upper communication path (85). The path guide member is located below the discharge pipe (52), is extended to a position near a side surface of the sealed container, and has a path area greater than the path area of the discharge pipe. The construction causes the refrigerant gas to collide with the side surface of the sealed container, promoting separation of oil, and even if the oil is re-dispersed by a gas flow, the construction reduces flow directly leading to the discharge pipe.
    Type: Application
    Filed: June 29, 2009
    Publication date: June 2, 2011
    Inventors: Shuji Hasegawa, Mutsunori Matsunaga, Masashi Miyake
  • Patent number: 7902713
    Abstract: A self-starting type permanent magnet synchronous motor comprises a stator and a rotor. The rotor comprises a rotor core having a plurality of slots provided in an outer periphery thereof and a cage winding comprising conductive bars embedded in the slots and conductive end rings that short-circuit the conductive bars on both end faces of the bars in an axial direction thereof. The rotor core comprises at least one magnet insertion hole arranged on an inner peripheral side from the slots, and at least one permanent magnet embedded in the at least one magnet insertion hole. When a pole center axis is denoted as a d-axis and an axis deviating from the pole center axis by an electrical angle 90° is denoted as a q-axis, a flux content generated by the cage winding during start-up becomes maximal in the vicinity of and on one of the d-axis and the q-axis.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: March 8, 2011
    Assignee: Hitachi Appliances, Inc.
    Inventors: Satoshi Kikuchi, Hiroyuki Mikami, Akeshi Takahashi, Tomio Yoshikawa, Keiji Tanaka, Masashi Miyake, Baiying Huang, Masaru Ohtahara, Kenji Tojo, Hideyuki Kumakura
  • Patent number: 7758326
    Abstract: A scroll fluid machine comprises compression chambers defined with an orbiting scroll orbiting relative to a fixed scroll, and a back pressure chamber provided on the face opposite from a wrap of the orbiting scroll. A back pressure port is provided, which is formed in an end-plate of the orbiting scroll and connects from a compression chamber side opening opened to a compression chamber side and to a back pressure chamber side opening opened to a back pressure chamber side. The compression chamber side opening is opened and closed by an end-plate of the fixed scroll according as the orbiting motion of the orbiting scroll to perform connection and blockage of the back pressure port. The flow resistance of fluid flowing in and out between the back pressure chamber and the compression chamber is reduced and the compression efficiency and reliability are improved.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: July 20, 2010
    Assignee: Hitachi Appliances, Inc.
    Inventors: Kazuyuki Fujimura, Takeshi Tsuchiya, Yuichi Yanagase, Makoto Aoki, Masashi Miyake, Mutsunori Matsunaga, Satoshi Nakamura, Masaru Ohtahara, Syuuji Hasegawa, Hiroyuki Imamura, Yoshinobu Yosuke, Kenji Tojo
  • Patent number: 7628593
    Abstract: A horizontal type scroll compressor is provided with a support plate separating an inside of the sealed container into a first space in which the compressor mechanism portion and the electric motor portion are stored, and a second space in which the discharge pipe is provided, and a communication path communicating a bottom portion of the first space and a space above the drive shaft within the second space in a lower side of the support plate, and regulates an oil level by the communication path in the case that the oil level difference becomes large at a time of a high-speed operation. In order to stabilize the oil supply to the bearing or the like, the oil is supplied by an oil pump provided in a shaft end portion of the drive shaft close to an oil reserving chamber.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: December 8, 2009
    Assignee: Hitachi Appliances, Inc.
    Inventors: Takao Mizuno, Mutsumi Otsuka, Katsuya Ohashi, Yasushi Izunaga, Mutsunori Matsunaga, Masashi Miyake, Kenji Tojo
  • Publication number: 20090160285
    Abstract: A self-starting type permanent magnet synchronous motor comprises a stator and a rotor. The rotor comprises a rotor core having a plurality of slots provided in an outer periphery thereof and a cage winding comprising conductive bars embedded in the slots and conductive end rings that short-circuit the conductive bars on both end faces of the bars in an axial direction thereof. The rotor core comprises at least one magnet insertion hole arranged on an inner peripheral side from the slots, and at least one permanent magnet embedded in the at least one magnet insertion hole. When a pole center axis is denoted as a d-axis and an axis deviating from the pole center axis by an electrical angle 90° is denoted as a q-axis, a flux content generated by the cage winding during start-up becomes maximal in the vicinity of and on one of the d-axis and the q-axis.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 25, 2009
    Inventors: Satoshi Kikuchi, Hiroyuki Mikami, Akeshi Takahashi, Tomio Yoshikawa, Keiji Tanaka, Masashi Miyake, Baiying Huang, Masaru Ohtahara, Kenji Tojo, Hideyuki Kumakura
  • Publication number: 20080304994
    Abstract: A scroll fluid machine is configured by engaging a fixed scroll and an orbiting scroll having spiral bodies formed on base plates. A seal member is provided between a rear surface of the orbiting scroll and a frame member arranged opposite thereto to divide a rear side chamber into an inner space and an outer space. The inner space inside the seal member is subjected to a pressure substantially corresponding to a discharge pressure, and the outer space is subjected to a pressure lower than that of an inner back pressure chamber to press the orbiting scroll against the fixed scroll. The scroll members are formed such that the width of a groove and the thickness of a tooth of the spiral body formed inside the seal member are larger than those of the spiral body formed outside the seal member.
    Type: Application
    Filed: June 11, 2008
    Publication date: December 11, 2008
    Inventors: Masaru OHTAHARA, Masashi Miyake, Kenji Tojo, Kazuo Sakurai
  • Patent number: 7425536
    Abstract: A feline hepatocyte growth factor gene and a 15 base pairs-deleted feline hepatocyte growth factor gene. These genes encode a protein having an amino acid sequence shown in SEQ ID NO: 2 or 4. The feline hepatocyte growth factor and the 5 amino acids-deleted feline hepatocyte growth factor are useful for the treatment of liver diseases, kidney diseases, lung diseases, digestive diseases, cardiocirculatory diseases or cranial nerve diseases.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: September 16, 2008
    Assignee: Nippon Zenyaku Kogyo Ltd.
    Inventors: Masashi Miyake, Shigehiro Iwabuchi, Yasuyuki Suzuta
  • Publication number: 20080008614
    Abstract: In a horizontal type scroll compressor discharging compressed gas from a discharge pipe provided in a sealed container in which a compressor mechanism portion and an electric motor portion are stored, for preventing a refrigerator oil from flowing out of a compressor, for supplying an oil in an oil holding portion chamber to a bearing sliding portion, and for reducing an oil ascent, the horizontal type scroll compressor is provided with a support plate separating an inside of the sealed container into a first space in which the compressor mechanism portion and the electric motor portion are stored, and a second space in which the discharge pipe is provided, and a communication path communicating a bottom portion of the first space and a space above the drive shaft within the second space in a lower side of the support plate, and regulates an oil level by the communication path in the case that the oil level difference becomes large at a time of a high-speed operation.
    Type: Application
    Filed: July 9, 2007
    Publication date: January 10, 2008
    Inventors: Takao Mizuno, Mutsumi Otsuka, Katsuya Ohashi, Yasushi Izunaga, Mutsunori Matsunaga, Masashi Miyake, Kenji Tojo
  • Publication number: 20070231172
    Abstract: A scroll fluid machine comprises compression chambers defined with an orbiting scroll orbiting relative to a fixed scroll, and a back pressure chamber provided on the face opposite from a wrap of the orbiting scroll. A back pressure port is provided, which is formed in an end-plate of the orbiting scroll and connects from a compression chamber side opening opened to a compression chamber side and to a back pressure chamber side opening opened to a back pressure chamber side. The compression chamber side opening is opened and closed by an end-plate of the fixed scroll according as the orbiting motion of the orbiting scroll to perform connection and blockage of the back pressure port. The flow resistance of fluid flowing in and out between the back pressure chamber and the compression chamber is reduced and the compression efficiency and reliability are improved.
    Type: Application
    Filed: January 29, 2007
    Publication date: October 4, 2007
    Inventors: Kazuyuki Fujimura, Takeshi Tsuchiya, Yuichi Yanagase, Makoto Aoki, Masashi Miyake, Mutsunori Matsunaga, Satoshi Nakamura, Masaru Ohtahara, Syuuji Hasegawa, Hiroyuki Imamura, Yoshinobu Yosuke, Kenji Tojo
  • Publication number: 20070231171
    Abstract: A displacement type compressor includes a compressing mechanism section for performing a compression, a motor for driving the compressing mechanism section, and a crankshaft adapted to be driven in rotation by the motor to rotate the compressing mechanism section. The motor includes stator cores and having claw-type magnetic poles formed of a magnetic powder and circumferentially arranged in alternately meshed states, and annular coils and wound in a toric shape around the claw-type magnetic poles. Thus, the displacement type compressor is capable of being at a high speed and has a reduced size.
    Type: Application
    Filed: January 26, 2007
    Publication date: October 4, 2007
    Inventors: Takeshi Tsuchiya, Yuichi Yanagase, Kazuyuki Fujimura, Makoto Aoki, Masashi Miyake, Mutsunori Matsunaga, Yuji Enomoto, Satoshi Kikuchi, Shinichi Wakui, Tsutomu Nozaki
  • Patent number: 7129064
    Abstract: A canine hepatocyte growth factor gene and a 15 base pairs-deleted gene thereof encode a protein having an amino acid sequence shown in SEQ ID NO: 2 or 4 and a protein having an amino acid sequence comprising a deletion, substitution or addition of one or several amino acids and having a canine hepatocyte growth factor activity. The canine hepatocyte growth factor and the 5 amino acids-deleted canine hepatocyte growth factor are useful for the treatment of liver diseases, kidney diseases, lung diseases, digestive diseases, cardiocirculatory diseases or cranial nerve diseases.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: October 31, 2006
    Assignee: Nippon Zenyaku Kogyo Ltd.
    Inventors: Masashi Miyake, Shigehiro Iwabuchi, Yasuyuki Suzuta
  • Patent number: 7125688
    Abstract: A feline hepatocyte growth factor gene and a 15 base pairs-deleted feline hepatocyte growth factor gene. These genes encode a protein having an amino acid sequence shown in SEQ ID NO: 2 or 4. The feline hepatocyte growth factor and the 5 amino acids-deleted feline hepatocyte growth factor are useful for the treatment of liver diseases, kidney diseases, lung diseases, digestive diseases, cardiocirculatory diseases or cranial nerve diseases.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: October 24, 2006
    Assignee: Nippon Zenyaku Kogyo, LTD
    Inventors: Masashi Miyake, Shigehiro Iwabuchi, Yasuyuki Suzuta
  • Publication number: 20060217314
    Abstract: A feline hepatocyte growth factor gene and a 15 base pairs-deleted feline hepatocyte growth factor gene. These genes encode a protein having an amino acid sequence shown in SEQ ID NO: 2 or 4. The feline hepatocyte growth factor and the 5 amino acids-deleted feline hepatocyte growth factor are useful for the treatment of liver diseases, kidney diseases, lung diseases, digestive diseases, cardiocirculatory diseases or cranial nerve diseases.
    Type: Application
    Filed: June 9, 2006
    Publication date: September 28, 2006
    Inventors: Masashi Miyake, Shigehiro Iwabuchi, Yasuyuki Suzuta
  • Publication number: 20030207807
    Abstract: A feline hepatocyte growth factor gene and a 15 base pairs-deleted feline hepatocyte growth factor gene.
    Type: Application
    Filed: December 2, 2002
    Publication date: November 6, 2003
    Inventors: Masashi Miyake, Shigehiro Iwabuchi, Yasuyuki Suzuta
  • Publication number: 20030170685
    Abstract: A canine hepatocyte growth factor gene and a 15 base pairs-deleted canine hepatocyte growth factor gene.
    Type: Application
    Filed: December 18, 2002
    Publication date: September 11, 2003
    Inventors: Masashi Miyake, Shigehiro Iwabuchi, Yasuyuki Suzuta
  • Patent number: 5909985
    Abstract: A drill including a cutter member and a shank which are formed separately from each other and fixed to each other for rotation as a unit, wherein the shank has an engaging groove formed in a distal end face thereof such that the engaging groove extends in an axial direction of the shank and is aligned with a center of the distal end face, and the cutter member consists of a rectangular plate including a proximal end portion fixed to the shank by engagement thereof with the engaging groove, and a distal end portion which is remote from the shank and which has at least one cutting edge.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: June 8, 1999
    Assignee: Fuji Seiko Limited
    Inventors: Kiyotaka Shiga, Akio Fukui, Kazuaki Terada, Takahiro Yamada, Haruyasu Toyoda, Masashi Miyake, Akihiro Umeda
  • Patent number: 5277564
    Abstract: A closed type scroll compressor has a drive shaft supported by a frame through bearings lubricated with a lubricating oil supplied from an oil reservoir via a lubricating oil passage bore formed in the drive shaft. The end of the drive shaft in which the upstream end of the lubricating oil passage bore opens is connected to the oil reservoir through a joint tube which is supported by supporting structures including a combination of a spherical slide bearing and slide bearing and capable of taking up any mounting error or displacement of the drive shaft in any direction. The compressor can be assembled easily without any risk of uneven or local contact of each sliding portion.
    Type: Grant
    Filed: July 16, 1992
    Date of Patent: January 11, 1994
    Assignee: Hitachi, Ltd.
    Inventors: Takahiro Tamura, Kazuo Sakurai, Masashi Miyake, Mutsunori Matsunaga