Patents by Inventor Katsushi Hidano

Katsushi Hidano 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: 10995752
    Abstract: A scroll-type fluid machine is provided with a body unit having a fixed scroll and a turning scroll. Each of the fixed and turning scrolls include a lap formed on an end plate. The scroll-type fluid machine further includes a motor unit having a drive shaft for driving the body unit, rotors, and a stator. Cooling fins are formed on the opposite surfaces of the fixed scroll and the turning scroll from the surfaces of the respective end plates where the laps are formed.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: May 4, 2021
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Fuminori Kato, Katsushi Hidano, Takanori Emi
  • Publication number: 20200291939
    Abstract: Conventional scroll-type fluid machines did not take into account the issue of size reduction through reduction of an axial length without causing an imbalance between a compressor body unit and a motor unit in terms of dissipation of heat. In order to solve the problem, the present invention provides a scroll-type fluid machine provided with: a body unit having a fixed scroll and a turning scroll, each having a lap formed on an end plate thereof; and a motor unit having a drive shaft for driving the body unit, rotors, and a stator. Cooling fins are formed on the opposite surfaces of the fixed scroll and the turning scroll from the surfaces of the respective end plates where the laps are formed. The scroll-type fluid machine is constructed so as to satisfy .alpha./16+lc/4?ls.alpha./4+lc where .alpha.
    Type: Application
    Filed: August 3, 2016
    Publication date: September 17, 2020
    Inventors: Fuminori KATO, Katsushi HIDANO, Takanori EMI
  • 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: 20080101973
    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: Application
    Filed: September 27, 2007
    Publication date: May 1, 2008
    Inventors: Kiminori Iwano, Yuji Komai, Kazutaka Suefuji, Koji Fukui, Toshitsugu Suzuki, Junichi Nagasawa, Susumu Sakamoto, Katsushi Hidano, Kazunari Komatsu
  • Patent number: 6210137
    Abstract: A scroll fluid machine having a lubrication pump provided between sliding contact surfaces of an orbiting scroll member and a thrust bearing in a casing. The pump has an orbiting member accommodating recess provided in the sliding contact surface of the thrust bearing. An orbiting member projects from the sliding contact surface of the orbiting scroll member into the recess. A slide plate defines a suction chamber and a discharge chamber in the recess. As the orbiting scroll member orbits, the orbiting member orbits in the recess, causing a lubricant contained in the casing to be sucked from a suction passage and delivered to the inside of a boss portion accommodating an orbiting bearing.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: April 3, 2001
    Assignee: Tokico Ltd.
    Inventors: Yoshio Kobayashi, Susumu Sugiura, Kiminori Iwano, Yasuhiko Sekino, Katsushi Hidano, Susumu Sakamoto, Junichi Nagasawa, Toshitsugu Suzuki
  • Patent number: 5775888
    Abstract: A scroll fluid machine includes a fixed scroll member having an end plate which is formed such that a central portion of the end plate which corresponds approximately to 1.5 to 2 turns of a wrap portion from its spiral starting end (innermost end) is a thick-walled portion having a relatively large plate thickness, and an outer peripheral portion of the end plate which lies radially outside the thick-walled portion is a thin-walled portion. The thickness of the thick-walled portion is set to be about 1.4 to 1.6 times the thickness of the thin-walled portion. By reducing thermal resistance at the thick-walled portion of the end plate, heat from compression chambers are conducted to radiating fins, thereby suppressing the transfer of the heat to the thin-walled portion.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: July 7, 1998
    Assignee: Tokico Ltd.
    Inventors: Susumu Sakamoto, Yuji Komai, Katsushi Hidano, Yoshio Kobayashi