Patents by Inventor Shusaku Yamasaki

Shusaku Yamasaki 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: 10673306
    Abstract: A rotary machine capable of carrying out efficient cooling without increasing costs or deteriorating performance is provided. A motor 1 serving as the rotary machine has a rotor 20 configured to be rotatable around a rotary shaft 10, a stator 30 having a stator core 31 arranged around the rotor 20 and a coil 32 attached to the stator core 31 so that a coil end part 32a protrudes from each end of the stator core 31, mold members 33a and 33b formed at both ends of the stator core 31, to cover base parts of the coil end parts 32a, and partition parts 42b and 43b attached in contact with the mold members 33a and 33b, to separate a space S1 in which the rotor 20 is arranged from a space S2 in which the coil end parts 32a are arranged.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: June 2, 2020
    Assignee: IHI Corporation
    Inventors: Norihisa Handa, Satoru Ohashi, Masahiro Tanida, Shusaku Yamasaki
  • Patent number: 9624942
    Abstract: The present invention is a turbo machine that is provided with an impeller that is rotated, and with a shaft that transmits rotation power to this impeller, wherein there is provided a differential screw having an impeller screw portion that is provided at one end thereof and that is screwed into the impeller, and having a shaft screw portion that is provided at another end thereof and that is screwed into the shaft, and that fastens the impeller and the shaft together, and wherein, in the differential screw, a thread diameter of thread ridges that are formed on the impeller screw portion is formed the same as a thread diameter of thread ridges that are formed on the shaft screw portion, and a screwing direction of the thread ridges that are formed on the impeller screw portion is formed as the same direction as a screwing direction of the thread ridges that are formed on the shaft screw portion, and a pitch between the thread ridges that are formed on the impeller screw portion is formed smaller than a pitch
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: April 18, 2017
    Assignee: IHI CORPORATION
    Inventors: Nozomu Asano, Shusaku Yamasaki, Toshimichi Taketomi
  • Patent number: 9416964
    Abstract: A combustion heater (110) provided with a heating plate (126); a placement plate (120) disposed opposite the heating plate; an outer wall (122) provided around the outer circumference of the heating plate and the placement plate; a partitioning plate (124) that is disposed opposite the heating plate and the placement plate inside a space enclosed by the heating plate, the placement plate, and the outer wall, that forms a lead-in portion (134) by a gap with the placement plate, and that forms a lead-out portion (138) by a gap with the heating plate; and a combustion chamber (136) that is arranged in the space enclosed by the heating plate, the placement plate and the outer wall, and at which the fuel gas that was introduced from the lead-in portion combusts, and that leads out exhaust gas produced by the combustion toward the lead-out portion; in which a concavo-convex portion (146) that has concavities and convexities in the thickness direction is provided in the partitioning plate.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: August 16, 2016
    Assignee: IHI CORPORATION
    Inventors: Kimiyoshi Satoh, Soichiro Kato, Shusaku Yamasaki, Kazuo Miyoshi
  • Patent number: 9410699
    Abstract: A combustion heater (110) that is provided with a heating plate (126); a placement plate (120) disposed opposite the heating plate; an outer wall (122) provided around the outer circumference of the heating plate and the placement plate; a partitioning plate (124) that is disposed opposite the heating plate and the placement plate inside a space enclosed by the heating plate, the placement plate, and the outer wall, that forms a lead-in portion (134) by a gap with the placement plate, and that forms a lead-out portion (142) by a gap with the heating plate; a linking portion (136) that links the lead-in portion and the lead-out portion; a combustion chamber (138) that combusts fuel gas at the lead-out portion near the linking portion; and a flame-stabilization portion (140) that is provided in the combustion chamber and that maintains the combustion of the fuel gas in the combustion chamber.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: August 9, 2016
    Assignee: IHI CORPORATION
    Inventors: Kimiyoshi Satoh, Soichiro Kato, Shusaku Yamasaki, Kazuo Miyoshi
  • Publication number: 20150093247
    Abstract: The present invention is a turbo machine that is provided with an impeller that is rotated, and with a shaft that transmits rotation power to this impeller, wherein there is provided a differential screw having an impeller screw portion that is provided at one end thereof and that is screwed into the impeller, and having a shaft screw portion that is provided at another end thereof and that is screwed into the shaft, and that fastens the impeller and the shaft together, and wherein, in the differential screw, a thread diameter of thread ridges that are formed on the impeller screw portion is formed the same as a thread diameter of thread ridges that are formed on the shaft screw portion, and a screwing direction of the thread ridges that are formed on the impeller screw portion is formed as the same direction as a screwing direction of the thread ridges that are formed on the shaft screw portion, and a pitch between the thread ridges that are formed on the impeller screw portion is formed smaller than a pitch
    Type: Application
    Filed: December 5, 2014
    Publication date: April 2, 2015
    Inventors: Nozomu ASANO, Shusaku YAMASAKI, Toshimichi TAKETOMI
  • Patent number: 8928195
    Abstract: On an inner circumference side of a stator fixed in an inner housing, a rotor is arranged. The rotor rotates through a bearing with respect to a center shaft that is a stationary shaft fixed to outer housings. Oil introduced into a rotor oil inlet path in the center shaft flows through a communication path and a clearance on an outer circumference of the center shaft into an oil path in the rotor. The oil flowing through the oil path cools a permanent magnet, lubricates the bearing, and is discharged from a rotor oil discharge port to the outside of the inner housing. The oil in the clearance is sealed with a thread seal, i.e., an inner thread formed in an inner face of an end ring and is prevented from flowing toward the bearing.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: January 6, 2015
    Assignee: IHI Corporation
    Inventors: Satoru Ohashi, Norihisa Handa, Shusaku Yamasaki, Masahiro Tanida, Koushi Ishimoto, Motoaki Shito
  • Publication number: 20140116423
    Abstract: A combustion heater (110) provided with a heating plate (126); a placement plate (120) disposed opposite the heating plate; an outer wall (122) provided around the outer circumference of the heating plate and the placement plate; a partitioning plate (124) that is disposed opposite the heating plate and the placement plate inside a space enclosed by the heating plate, the placement plate, and the outer wall, that forms a lead-in portion (134) by a gap with the placement plate, and that forms a lead-out portion (138) by a gap with the heating plate; and a combustion chamber (136) that is arranged in the space enclosed by the heating plate, the placement plate and the outer wall, and at which the fuel gas that was introduced from the lead-in portion combusts, and that leads out exhaust gas produced by the combustion toward the lead-out portion; in which a concavo-convex portion (146) that has concavities and convexities in the thickness direction is provided in the partitioning plate.
    Type: Application
    Filed: January 6, 2014
    Publication date: May 1, 2014
    Inventors: Kimiyoshi SATOH, Soichiro KATO, Shusaku YAMASAKI, Kazuo MIYOSHI
  • Publication number: 20140116424
    Abstract: A combustion heater (110) that is provided with a heating plate (126); a placement plate (120) disposed opposite the heating plate; an outer wall (122) provided around the outer circumference of the heating plate and the placement plate; a partitioning plate (124) that is disposed opposite the heating plate and the placement plate inside a space enclosed by the heating plate, the placement plate, and the outer wall, that forms a lead-in portion (134) by a gap with the placement plate, and that forms a lead-out portion (142) by a gap with the heating plate; a linking portion (136) that links the lead-in portion and the lead-out portion; a combustion chamber (138) that combusts fuel gas at the lead-out portion near the linking portion; and a flame-stabilization portion (140) that is provided in the combustion chamber and that maintains the combustion of the fuel gas in the combustion chamber.
    Type: Application
    Filed: January 7, 2014
    Publication date: May 1, 2014
    Inventors: Kimiyoshi SATOH, Soichiro KATO, Shusaku YAMASAKI, Kazuo MIYOSHI
  • Publication number: 20130330193
    Abstract: In a turbomachinery (S1) that is provided with an impeller (1a) and a shaft (2) that are to be fastened, the impeller (1a) and the shaft (2) are fastened by a two-way screw (3) of which the turning direction of the screw thread that is formed on the impeller (1a) side and the turning direction of the screw thread that is formed on the shaft (2) side are opposite directions. As a result, it is possible to fasten the impeller (1a) to the shaft (2) without the need for a complicated and large equipment, and the amount of work during fastening is reduced.
    Type: Application
    Filed: August 14, 2013
    Publication date: December 12, 2013
    Inventors: Nozomu ASANO, Shusaku YAMASAKI, Toshimichi TAKETOMI
  • Publication number: 20130278091
    Abstract: A rotary machine capable of preventing leakage of a coolant and simply and efficiently cooling a rotor is provided. A motor 1 has a rotor 20 made by laminating magnetic steel sheets, a stator 30 arranged around the rotor 20, a rotary shaft 10 passed through a central part of the rotor 20, and an annular sleeve 27 arranged between the rotary shaft 10 and the rotor 20. On an outer circumferential face of the rotary shaft 10, a groove 12 serving as a coolant flow path for guiding a coolant is formed. The groove 12 may be formed only on the outer circumferential face of the rotary shaft 10, or only on an inner circumferential face of the sleeve 27, or on both the outer circumferential face of the rotary shaft 10 and the inner circumferential face of the sleeve 27.
    Type: Application
    Filed: April 22, 2011
    Publication date: October 24, 2013
    Applicant: IHI Corporation
    Inventors: Satoru Ohashi, Shusaku Yamasaki, Norihisa Handa, Masahiro Tanida
  • Publication number: 20130270931
    Abstract: A rotary machine capable of carrying out efficient cooling without increasing costs or deteriorating performance is provided. A motor 1 serving as the rotary machine has a rotor 20 configured to be rotatable around a rotary shaft 10, a stator 30 having a stator core 31 arranged around the rotor 20 and a coil 32 attached to the stator core 31 so that a coil end part 32a protrudes from each end of the stator core 31, mold members 33a and 33b formed at both ends of the stator core 31, to cover base parts of the coil end parts 32a, and partition parts 42b and 43b attached in contact with the mold members 33a and 33b, to separate a space S1 in which the rotor 20 is arranged from a space S2 in which the coil end parts 32a are arranged.
    Type: Application
    Filed: April 22, 2011
    Publication date: October 17, 2013
    Applicant: IHI Corporation
    Inventors: Norihisa Handa, Satoru Ohashi, Masahiro Tanida, Shusaku Yamasaki
  • Publication number: 20130038151
    Abstract: On an inner circumference side of a stator fixed in an inner housing, a rotor is arranged. The rotor rotates through a bearing with respect to a center shaft that is a stationary shaft fixed to outer housings. Oil introduced into a rotor oil inlet path in the center shaft flows through a communication path and a clearance on an outer circumference of the center shaft into an oil path in the rotor. The oil flowing through the oil path cools a permanent magnet, lubricates the bearing, and is discharged from a rotor oil discharge port to the outside of the inner housing. The oil in the clearance is sealed with a thread seal, i.e., an inner thread formed in an inner face of an end ring and is prevented from flowing toward the bearing.
    Type: Application
    Filed: April 22, 2011
    Publication date: February 14, 2013
    Applicant: IHI CORPORATION
    Inventors: Satoru Ohashi, Norihisa Handa, Shusaku Yamasaki, Masahiro Tanida, Koushi Ishimoto, Motoaki Shito
  • Patent number: 8161873
    Abstract: The invention provides a servo press which can obtain a higher speed in a moving section of a slide, and a higher pressure in a pressurizing section near a bottom dead point without enlarging a capacity of a motor. The servo press is provided with a multi-toggle mechanism 10 moving up and down a slide 5 in which an upper die is to be fixed to a lower surface of the slide, and a toggle driving mechanism 20 provided on a crown 6 located to an upper side of the slide and driving the multi-toggle mechanism. The multi-toggle mechanism 20 is structured such as to include three or more toggles generating a force amplifying effect by a plurality of links 11, 12, 13, 14.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: April 24, 2012
    Assignee: IHI Corporation
    Inventor: Shusaku Yamasaki
  • Patent number: 7913752
    Abstract: A cooling system for a vacuum processing apparatus is provided with an internal heat conduction path for transfer of heat entering the subject body through the vacuum processing apparatus, a heat radiation path for radiation of the heat to an outside of the vacuum processing apparatus and a heat conduction path for regulation of quantity of heat transfer between the internal heat conduction path and the heat radiation path. Preferably, a heat pipe is applied to the internal heat conduction path.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: March 29, 2011
    Assignee: Ishikawajima-Harima Heavy Industries Co., Ltd.
    Inventors: Masashi Ueda, Yoshimi Watabe, Shusaku Yamasaki, Kazuo Miyoshi, Hiroyuki Otsuka
  • Patent number: 7873431
    Abstract: By adopting a workpiece transfer apparatus, which grips a workpiece by use of a predetermined grip device and transfers the workpiece between press apparatuses each of which drives a die, including a transfer control device for controlling a position of the grip device based on a resultant target value obtained by combining a die position of a press apparatus located on an upstream side of a workpiece transfer direction (an upstream side die position) and a die position of a press apparatus located on a downstream side of a workpiece transfer direction (a downstream side die position), in which the transfer control device sets a resultant target value so that the grip device moves smoothly, it becomes possible to suppress vibration in a workpiece transfer apparatus in a press line.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: January 18, 2011
    Assignee: IHI Corporation
    Inventors: Takeshi Takahashi, Hajime Banno, Shusaku Yamasaki
  • Publication number: 20100282098
    Abstract: The invention provides a servo press which can obtain a higher speed in a moving section of a slide, and a higher pressure in a pressurizing section near a bottom dead point without enlarging a capacity of a motor. The servo press is provided with a multi-toggle mechanism 10 moving up and down a slide 5 in which an upper die is to be fixed to a lower surface of the slide, and a toggle driving mechanism 20 provided on a crown 6 located to an upper side of the slide and driving the multi-toggle mechanism. The multi-toggle mechanism 20 is structured such as to include three or more toggles generating a force amplifying effect by a plurality of links 11, 12, 13, 14.
    Type: Application
    Filed: July 23, 2007
    Publication date: November 11, 2010
    Applicant: IHI CORPORATION
    Inventor: Shusaku Yamasaki
  • Publication number: 20100021274
    Abstract: By adopting a workpiece transfer apparatus, which grips a workpiece by use of a predetermined grip device and transfers the workpiece between press apparatuses each of which drives a die, including a transfer control device for controlling a position of the grip device based on a resultant target value obtained by combining a die position of a press apparatus located on an upstream side of a workpiece transfer direction (an upstream side die position) and a die position of a press apparatus located on a downstream side of a workpiece transfer direction (a downstream side die position), in which the transfer control device sets a resultant target value so that the grip device moves smoothly, it becomes possible to suppress vibration in a workpiece transfer apparatus in a press line.
    Type: Application
    Filed: June 6, 2006
    Publication date: January 28, 2010
    Inventors: Takeshi Takahashi, Hajime Banno, Shusaku Yamasaki
  • Publication number: 20060144584
    Abstract: A cooling system for a vacuum processing apparatus is provided with an internal heat conduction path for transfer of heat entering the subject body through the vacuum processing apparatus, a heat radiation path for radiation of the heat to an outside of the vacuum processing apparatus and a heat conduction path for regulation of quantity of heat transfer between the internal heat conduction path and the heat radiation path. Preferably, a heat pipe is applied to the internal heat conduction path.
    Type: Application
    Filed: January 20, 2004
    Publication date: July 6, 2006
    Applicant: Ishikawajima-Harima Heavey Industries Co., Ltd:
    Inventors: Masashi Ueda, Shusaku Yamasaki, Kazuo Miyoshi, Hiroyuki Otsuka