Patents by Inventor Jun Koyanagi

Jun Koyanagi 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: 11821437
    Abstract: A compressor includes: a casing that is formed in a cylindrical shape and has an opening portion that makes an inside and an outside of the casing communicate with each other at a lower portion in a vertical direction; a bundle that is accommodated inside the casing in a state of being insertable and removable in the axial direction; a first roller that is disposed at an end portion of a lower portion of the bundle and comes into contact with an inner peripheral surface of a lower portion of the casing; and a second roller that is disposed at the lower portion of the bundle at an interval from the first roller, and comes into contact with the inner peripheral surface of the lower portion of the casing.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: November 21, 2023
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Hiroaki Oka, Jun Koyanagi
  • Publication number: 20220243738
    Abstract: A compressor includes: a casing that is formed in a cylindrical shape and has an opening portion that makes an inside and an outside of the casing communicate with each other at a lower portion in a vertical direction; a bundle that is accommodated inside the casing in a state of being insertable and removable in the axial direction; a first roller that is disposed at an end portion of a lower portion of the bundle and comes into contact with an inner peripheral surface of a lower portion of the casing; and a second roller that is disposed at the lower portion of the bundle at an interval from the first roller, and comes into contact with the inner peripheral surface of the lower portion of the casing.
    Type: Application
    Filed: January 26, 2022
    Publication date: August 4, 2022
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Hiroaki Oka, Jun Koyanagi
  • Patent number: 10954959
    Abstract: A compressor includes: an upper half casing having upper half casing parting planes; upper half diaphragms configured to be disposed on an inner circumferential side of the upper half casing and having upper half diaphragm parting planes; and upper half position regulating parts that regulate positions of the upper half casing and the upper half diaphragms. The upper half position regulating parts are fixed to at least one of the upper half casing and one of the upper half diaphragms, and have upper half abutting members at which upper half abutting surfaces, each of which comes into contact with an upper half casing recessed surface of the upper half casing and an upper half diaphragm recessed surface of the upper half diaphragm, are formed.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: March 23, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Hideki Yamada, Jun Koyanagi
  • Publication number: 20190072108
    Abstract: A compressor includes: an upper half casing having upper half casing parting planes; upper half diaphragms configured to be disposed on an inner circumferential side of the upper half casing and having upper half diaphragm parting planes; and upper half position regulating parts that regulate positions of the upper half casing and the upper half diaphragms. The upper half position regulating parts are fixed to at least one of the upper half casing and one of the upper half diaphragms, and have upper half abutting members at which upper half abutting surfaces, each of which comes into contact with an upper half casing recessed surface of the upper half casing and an upper half diaphragm recessed surface of the upper half diaphragm, are formed.
    Type: Application
    Filed: August 29, 2018
    Publication date: March 7, 2019
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Hideki Yamada, Jun Koyanagi
  • Patent number: 9757988
    Abstract: A pneumatic tire having a specified rotational direction and including land portions formed compartmentally on the tread of the pneumatic tire by disposing plural inclined grooves extending from both tread ends respectively toward the tire equator and inclined toward the rotational direction with respect to a tire width direction, and also including branch grooves on the tread, each of the branch grooves diverging from a portion of the inclined groove within an area till ¼ of the tread width from the tread, extending to the tire equator in the opposite tire circumferential direction of the inclined groove with respect to the tire width direction and terminating within the land portions.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: September 12, 2017
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Jun Koyanagi
  • Patent number: 9505270
    Abstract: A pneumatic radial tire according to the present invention has a tread pattern specifying a tire rotation direction and an optimized shape of a groove wall on a kicking-out side of a lateral groove.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: November 29, 2016
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Jun Koyanagi
  • Publication number: 20140124109
    Abstract: A pneumatic tire having a specified rotational direction and including land portions formed compartmentally on the tread of the pneumatic tire by disposing plural inclined grooves extending from both tread ends respectively toward the tire equator and inclined toward the rotational direction with respect to a tire width direction, and also including branch grooves on the tread, each of the branch grooves diverging from a portion of the inclined groove within an area till ¼ of the tread width from the tread, extending to the tire equator in the opposite tire circumferential direction of the inclined groove with respect to the tire width direction and terminating within the land portions.
    Type: Application
    Filed: July 13, 2012
    Publication date: May 8, 2014
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Jun Koyanagi
  • Publication number: 20140110026
    Abstract: A pneumatic radial tire according to the present invention has a tread pattern specifying a tire rotation direction and an optimized shape of a groove wall on a kicking-out side of a lateral groove.
    Type: Application
    Filed: July 13, 2012
    Publication date: April 24, 2014
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Jun Koyanagi
  • Patent number: D661638
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: June 12, 2012
    Assignee: Bridgestone Corporation
    Inventor: Jun Koyanagi
  • Patent number: D662874
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: July 3, 2012
    Assignee: Bridgestone Corporation
    Inventor: Jun Koyanagi
  • Patent number: D686562
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: July 23, 2013
    Assignee: Bridgestone Corporation
    Inventor: Jun Koyanagi