Patents by Inventor Susumu Sakamoto

Susumu Sakamoto 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: 20220330732
    Abstract: Please delete the current abstract and add the following new paragraph as the abstract. A head cooler improves sleep quality without overcooling the head of a sleeping person. A head cooler includes a main body, a pillow, and a connector. The main body sends out a liquid for circulation between the main body and the pillow through the connector. The main body includes a temperature adjuster that adjusts a temperature of the liquid, a pump that sends out the liquid toward the pillow, and a controller that controls the temperature adjuster and the pump to adjust a temperature of the pillow at a first target temperature of 22 to 24° C. until an elapsed time from start of cooling reaches a target time of 200 to 250 minutes.
    Type: Application
    Filed: August 29, 2020
    Publication date: October 20, 2022
    Inventors: Kazuaki MAEDA, Toshiaki SUGIMORI, Susumu SAKAMOTO, Yuta SAITO
  • Patent number: 11118583
    Abstract: The present invention makes a lap clearance between a fixed scroll and an turning scroll as small as possible to suppress leakage of compressed fluid from a compression chamber in a compression operation, thereby improving a compression efficiency. Provided is a scroll-type fluid machine characterized by comprising: a fixed scroll having a scroll lap portion; and an orbiting scroll that is provided to face the fixed scroll and that has a scroll lap portion turning so as to form a plurality of compression chambers in a clearance relative to the lap portion of the fixed scroll, wherein the lap portion of at least one of the fixed scroll and the turning scroll is provided with, in a predetermined region, a recessed portion on one lateral surface thereof and a protruding portion on the other lateral surface thereof.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: September 14, 2021
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Sho Watanabe, Susumu Sakamoto, Yoshio Kobayashi, Kiminori Iwano
  • Publication number: 20180202441
    Abstract: The present invention makes a lap clearance between a fixed scroll and an turning scroll as small as possible to suppress leakage of compressed fluid from a compression chamber in a compression operation, thereby improving a compression efficiency. Provided is a scroll-type fluid machine characterized by comprising: a fixed scroll having a scroll lap portion; and an orbiting scroll that is provided to face the fixed scroll and that has a scroll lap portion turning so as to form a plurality of compression chambers in a clearance relative to the lap portion of the fixed scroll, wherein the lap portion of at least one of the fixed scroll and the turning scroll is provided with, in a predetermined region, a recessed portion on one lateral surface thereof and a protruding portion on the other lateral surface thereof.
    Type: Application
    Filed: June 3, 2015
    Publication date: July 19, 2018
    Inventors: Sho WATANABE, Susumu SAKAMOTO, Yoshio KOBAYASHI, Kiminori IWANO
  • Patent number: 8967986
    Abstract: To provide a higher sealing capability irrespective of the pressure difference between compression chambers, lips having leading ends extended toward the inner surface of a recessed groove are formed. At least some of the lips have a base end that is shaped to reduce rigidity against extension of the lips.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: March 3, 2015
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Toshikazu Harashima, Yoshiyuki Kanemoto, Koji Fukui, Susumu Sakamoto
  • Patent number: 8784067
    Abstract: An electromagnetic valve, which is provided between an intake port of a compressor body and a pneumatic line at an intermediate position of an intake pipe, is opened/closed by a control unit. Communication between the intake port of the compressor body and the pneumatic line is permitted when the valve is open, and is blocked when the valve is closed. In a start-up control of the compressor body, the electromagnetic valve is opened, permitting communication of the pneumatic line in the plant with the intake port of the compressor body for power supply to an electric motor to drive an orbiting scroll. Rattling of the orbiting scroll by an amount equal to the axial gap (play) is suppressed before starting a compression operation.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: July 22, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Kiminori Iwano, Yuji Komai, Susumu Sakamoto, Aya Mizukoshi
  • Patent number: 8647085
    Abstract: A scroll fluid machine with ensured reliability of an oil seal and a bearing even in a compressor operation at high rpm and high load is provided, which includes: a fixed scroll; an orbiting scroll facing the fixed scroll and having a boss provided on a face opposite to the fixed scroll; a drive shaft having a leading end mounted to the boss; an orbiting bearing supporting the drive shaft in connection with the orbiting scroll; and a seal member placed between the boss and the drive shaft to seal against a lubricant supplied to the orbiting bearing. The seal member has an oil lip producing action of moving the lubricant toward the orbiting bearing by rotation of the drive shaft. A communication passage is provided in the oil lip for communication between a space between the orbiting bearing and the seal member and a space outside the boss.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: February 11, 2014
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Kiminori Iwano, Susumu Sakamoto, Yoshio Kobayashi, Koichi Tashiro
  • Patent number: 8630530
    Abstract: A time shift reproduction time controlling method and an information reproduction apparatus are disclosed wherein reproduction of data at time which is beyond time shift reproduction possible time is prevented with certainty. An input PCR extraction section extracts a PCR from a reception transport stream and outputs the extracted PCR to a subtractor. An output PCR extraction section extracts a PCR from a transport stream read out from a recording medium and outputs the extracted PCR to the subtractor. The subtractor subtracts time information from the output PCR extraction section from time information from the input PCR extraction section and outputs a result of the subtraction to a comparator. The comparator compares the output of the subtractor and output of a reproduction time control register in which a value indicating a time limit to time shift reproduction is stored with each other and outputs a result of the comparison to a reproduction stopping control section.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: January 14, 2014
    Assignee: NEC Personal Computers, Ltd.
    Inventor: Susumu Sakamoto
  • Patent number: 8375762
    Abstract: A stripper device for can drawing and ironing apparatus can remove a drawn and ironed can material from a punch without causing buckling (curl and wrinkle) on the material. Each finger (2) is split into three small fingers (21), and an axial end of each small finger (21) is engaged with the lower part of a rocking arm (3) with an elastic member (24) in between. A head portion (33) of each rocking arm (3) is engaged with a cam portion (42) of a cam ring (4) to allow the finger (2) to be driven independently each other. Each rocking arm (3) is biased by an arm spring (32) in the direction of opening the small finger (21), while the small finger (21) is biased by a finger spring (22) in the direction of its closure.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: February 19, 2013
    Assignee: Toyo Seikan Kaisha, Ltd.
    Inventors: Hiromitsu Funatsuki, Hidekazu Tomaru, Susumu Sakamoto, Toshiki Okuda
  • Patent number: 8206137
    Abstract: There is provided a cylinder apparatus consisting of a cylinder, a piston performing reciprocating motion between a top dead point and a bottom dead point with oscillatory movement in the cylinder, wherein the cylinder has an oscillatory distance between the top dead point and the bottom dead point, which is shorter than the oscillatory distance at the top and bottom dead points.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: June 26, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Susumu Sakamoto, Daisuke Takahashi, Junichi Nagasawa
  • Patent number: 8096792
    Abstract: The present invention provides a scroll type fluid machine realizing reduced attachment space in a casing and improvement in workability at the time of assembly and the like by using a plurality of ball coupling mechanisms. A plurality of ball coupling mechanisms are disposed between a casing and a rear side of an orbiting scroll. Each of the ball coupling mechanisms includes first and second thrust receivers (reception plates), a sphere, and a cylindrical ring. A thrust load to be applied to an end plate of the orbiting scroll is received between the first and second thrust receivers (reception plates) and the sphere. The cylindrical ring disposed between the first and second thrust receivers displays a so-called rotation preventing effect in such a manner that its outer peripheral surface makes a rolling contact with inner peripheral surfaces of cylindrical portions in association with an orbiting motion of the orbiting scroll.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: January 17, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Kazutaka Suefuji, Yuji Komai, Susumu Sakamoto
  • Publication number: 20120009077
    Abstract: A scroll fluid machine with ensured reliability of an oil seal and a bearing even in a compressor operation at high rpm and high load is provided, which includes: a fixed scroll; an orbiting scroll facing the fixed scroll and having a boss provided on a face opposite to the fixed scroll; a drive shaft having a leading end mounted to the boss; an orbiting bearing supporting the drive shaft in connection with the orbiting scroll; and a seal member placed between the boss and the drive shaft to seal against a lubricant supplied to the orbiting bearing. The seal member has an oil lip producing action of moving the lubricant toward the orbiting bearing by rotation of the drive shaft. A communication passage is provided in the oil lip for communication between a space between the orbiting bearing and the seal member and a space outside the boss.
    Type: Application
    Filed: July 6, 2011
    Publication date: January 12, 2012
    Applicant: Hitachi Industrial Equipment Systems Co., LTD.
    Inventors: Kiminori Iwano, Susumu Sakamoto, Yoshio Kobayashi, Koichi Tashiro
  • Publication number: 20110256001
    Abstract: A reciprocating compressor provided with a piston, which is compact and having high sealing performance is provided. A reciprocating compressor includes: a low-pressure compressor unit having a low-pressure piston and a low-pressure cylinder for compressing air with the low-pressure piston reciprocating while oscillating within the low-pressure cylinder; a high-pressure compressor unit having a high-pressure piston and a high-pressure cylinder for further compressing the air compressed in the low-pressure compressor unit with the high-pressure piston reciprocating while oscillating within the high-pressure cylinder; and a motor for driving the low-pressure compressor unit and the high-pressure compressor unit. A maximum tilt angle during oscillation of the low-pressure piston is made larger than a maximum tilt angle during oscillation of the high-pressure piston.
    Type: Application
    Filed: February 8, 2011
    Publication date: October 20, 2011
    Applicant: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Hisatoshi KOBAYASHI, Akito Ohata, Susumu Sakamoto, Koichi Tashiro
  • Patent number: 7950913
    Abstract: In a seal system for a scroll type fluid machine, a seal mechanism is provided between a backpressure plate and a holder, so as to surround an orbiting backpressure chamber. The seal member comprises a seal attachment groove, a seal member and a Y-shaped packing. The seal attachment groove is stepped on its outer circumference to define a shallow bottom portion. The seal member includes, on its outer circumference side, a cutout portion matching the shallow bottom portion. The Y-shaped packing is disposed between a deep groove peripheral wall of the seal attachment groove and the cutout portion of the seal member, and a backpressure chamber is defined on a reverse surface side of the seal member. By this arrangement, a slide surface of the seal member can be larger than an effective area of the backpressure side of the seal member. Thereby it is possible to reduce a difference between a load Ff acting on the slide surface and a load Fb acting on the reverse surface.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: May 31, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Kazutaka Suefuji, Kiminori Iwano, Yuji Komai, Koji Fukui, Susumu Sakamoto
  • Publication number: 20110070116
    Abstract: To provide a higher sealing capability irrespective of the pressure difference between compression chambers, lips having leading ends extended toward the inner surface of a recessed groove are formed. At least some of the lips have a base end that is shaped to reduce rigidity against extension of the lips.
    Type: Application
    Filed: June 11, 2010
    Publication date: March 24, 2011
    Inventors: Toshikazu HARASHIMA, Yoshiyuki Kanemoto, Koji Fukui, Susumu Sakamoto
  • Publication number: 20100126243
    Abstract: A stripper device for can drawing and ironing apparatus can remove a drawn and ironed can material from a punch without causing buckling (curl and wrinkle) on the material. Each finger (2) is split into three small fingers (21), and an axial end of each small finger (21) is engaged with the lower part of a rocking arm (3) with an elastic member (24) in between. A head portion (33) of each rocking arm (3) is engaged with a cam portion (42) of a cam ring (4) to allow the finger (2) to be driven independently each other. Each rocking arm (3) is biased by an arm spring (32) in the direction of opening the small finger (21), while the small finger (21) is biased by a finger spring (22) in the direction of its closure.
    Type: Application
    Filed: April 11, 2008
    Publication date: May 27, 2010
    Inventors: Hiromitsu Funatsuki, Hidekazu Tomaru, Susumu Sakamoto, Toshiki Okuda
  • Publication number: 20090148322
    Abstract: There is provided a cylinder apparatus consisting of a cylinder, a piston performing reciprocating motion between a top dead point and a bottom dead point with oscillatory movement in the cylinder, wherein the cylinder has an oscillatory distance between the top dead point and the bottom dead point, which is shorter than the oscillatory distance at the top and bottom dead points.
    Type: Application
    Filed: December 1, 2008
    Publication date: June 11, 2009
    Applicant: Hitachi, Ltd.
    Inventors: Susumu Sakamoto, Daisuke Takahashi, Junichi Nagasawa
  • Publication number: 20090110580
    Abstract: The present invention provides a scroll type fluid machine realizing reduced attachment space in a casing and improvement in workability at the time of assembly and the like by using a plurality of ball coupling mechanisms. A plurality of ball coupling mechanisms are disposed between a casing and a rear side of an orbiting scroll. Each of the ball coupling mechanisms includes first and second thrust receivers (reception plates), a sphere, and a cylindrical ring. A thrust load to be applied to an end plate of the orbiting scroll is received between the first and second thrust receivers (reception plates) and the sphere. The cylindrical ring disposed between the first and second thrust receivers displays a so-called rotation preventing effect in such a manner that its outer peripheral surface makes a rolling contact with inner peripheral surfaces of cylindrical portions in association with an orbiting motion of the orbiting scroll.
    Type: Application
    Filed: September 29, 2008
    Publication date: April 30, 2009
    Applicant: Hitachi, Ltd.
    Inventors: Kazutaka Suefuji, Yuji Komai, Susumu Sakamoto
  • Publication number: 20080310966
    Abstract: An electromagnetic valve at an intake side is provided between an intake port of a compressor body and a pneumatic line at an intermediate position of an intake pipe. The electromagnetic valve is opened/closed by the control unit. When the valve is opened, a communication of the intake port of the compressor body and the pneumatic line is allowed. When the valve is closed, the communication between the intake port and the pneumatic line is blocked. Under a start-up control of the compressor body, the electromagnetic valve at the intake side is opened to communicate the pneumatic line in the plant with the intake port of the compressor body for power supply to an electric motor to drive an orbiting scroll. The rattle of the orbiting scroll by an amount equal to the axial gap (play) is suppressed before starting a compression operation.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 18, 2008
    Applicant: Hitachi, Ltd.
    Inventors: Kiminori Iwano, Yuji Komai, Susumu Sakamoto, Aya Mizukoshi
  • Patent number: 7458788
    Abstract: A scroll fluid machine is capable of readily providing a back-pressure chamber having an increased pressure-receiving area and yet capable of being reduced in size. A fixed scroll member is secured to a casing. An orbiting scroll member is provided at a position facing the fixed scroll member. A holder is provided at the back of the orbiting scroll member, and a coupling member is provided to face the orbiting scroll member across the holder. The coupling member couples together the orbiting scroll member and a driving shaft and performs an orbiting motion together with the orbiting scroll member. A back-pressure plate is provided at the back of the orbiting scroll member, and a back-pressure chamber is formed between the back-pressure plate and the holder.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: December 2, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Kiminori Iwano, Yuji Komai, Kazutaka Suefuji, Koji Fukui, Toshitsugu Suzuki, Junichi Nagasawa, Susumu Sakamoto, Katsushi Hidano, Kazunari Komatsu
  • Publication number: 20080206083
    Abstract: Durability of a seal member is improved by reducing a surface pressure thereon. A seal mechanism 24 is provided between a backpressure plate 16 and a holder 17 so as to surround an orbiting backpressure chamber 18. The seal member 24 comprises a seal attachment groove 25, a seal member 26 and a Y-shaped packing 27. The seal attachment groove 25 is stepped on its outer circumference side to define a shallow bottom portion 25B. The seal member 26 includes, on its outer circumference side, a cutout portion 26D matching the shallow bottom portion 25B. The Y-shaped packing 27 is disposed between a deep groove peripheral wall 25C of the seal attachment groove 25 and the cutout portion 26D of the seal member 26, and a backpressure chamber 28 is defined on a reverse surface 26B side of the seal member 26. By this arrangement, a slide surface 26A of the seal member 26 can be larger than an effective area of the backpressure side of the seal member 26.
    Type: Application
    Filed: February 25, 2008
    Publication date: August 28, 2008
    Inventors: Kazutaka Suefuji, Kiminori Iwano, Yuji Komai, Koji Fukui, Susumu Sakamoto