Patents by Inventor Noriyuki Okada

Noriyuki Okada 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: 11984885
    Abstract: A semiconductor circuit includes: a first inductor part configured to connect in series with a source electrode of a first semiconductor element; and a second inductor part configured to connect in series with a source electrode in a second semiconductor element that is configured to connect in parallel with the first semiconductor element; the first inductor part and the second inductor part are arranged to generate an induced electromotive force in the first inductor part and the second inductor part by way of a magnetic interaction so that the currents flowing in the first inductor part and the second inductor part are reinforced in the same direction.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: May 14, 2024
    Assignee: OMRON CORPORATION
    Inventors: Noriyuki Nosaka, Chen Chen, Takanori Ishii, Wataru Okada
  • Publication number: 20240026895
    Abstract: A rotor includes a bolt fixing portion having a plurality of bolts for collectively fixing a plurality of impellers including a disk having a central shaft structure. The disk has a first fitting portion having a plurality of first protrusion portions and first recessed portions, a second fitting portion having a plurality of second protrusion portions and second recessed portions, and a plurality of bolt holes through which the first fitting portion and the second fitting portion pass and into which the bolt is inserted. The first protrusion portion is fitted into the second recessed portion of another adjacent impeller in a state where movement in the circumferential direction is restricted to each other, and the first recessed portion is fitted to the second protrusion portion of another adjacent impeller in a state where movement in the circumferential direction is restricted to each other.
    Type: Application
    Filed: July 14, 2023
    Publication date: January 25, 2024
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Noriyuki Okada, Nobuyori Yagi, Hideki Nagao
  • Patent number: 11572888
    Abstract: The impeller of a rotating machine according to at least one embodiment of the present discloser is provided with: a disc; a cover disposed on an opposite side of a radial passage from the disc in an axial direction; and a blade disposed between the disc and the cover. In a dimensionless position along a camber line of the blade when the position of a leading edge of the blade is defined as 0 and the position of a trailing edge of the blade is defined as 1, a position where an angle difference between a first blade angle at a disc-side end portion of the blade and a second blade angle at a cover-side end portion of the blade is maximum is in a range of 0.5 or more and 1 or less. The first blade angle is ?10 degrees or more and 0 degrees or less at the position where the angle difference is maximum.
    Type: Grant
    Filed: October 8, 2021
    Date of Patent: February 7, 2023
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Nobuyori Yagi, Noriyuki Okada, Chihiro Myoren, Akihiro Nakaniwa, Shuichi Yamashita, Jo Masutani, Hirofumi Higuchi, Takashi Oda
  • Patent number: 11493054
    Abstract: An impeller of a rotating machine according to at least one embodiment includes: a disc; a cover disposed on an opposite side of a radial passage from the disc in an axial direction; and a blade disposed between the disc and the cover. A back surface of the disc has a recess extending in a circumferential direction in a radial range where the blade is disposed.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: November 8, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Nobuyori Yagi, Noriyuki Okada, Takashi Oda
  • Patent number: 11474466
    Abstract: In an image forming apparatus, a cleaning blade, disposed on a downstream side of a transfer roller in a rotation direction of an image carrier, removes toner remaining on the image carrier after transfer of a toner image to an intermediate transfer member. After completion of an image forming operation, a controller causes the transfer roller to separate from the intermediate transfer member, cause the developing device to form on the image carrier a toner band to be supplied to the cleaning blade, and cause rotation of the image carrier to stop such that at least a part of the toner band formed on the image carrier stops within a section from a first position facing the transfer roller to a second position facing the cleaning blade in the rotation direction.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: October 18, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuya Nagatomo, Noriyuki Okada, Shozo Aiba, Naoki Mugita, Akinori Miyamoto, Kenta Matsuzaki, Masato Maejima
  • Publication number: 20220163908
    Abstract: In an image forming apparatus, a cleaning blade, disposed on a downstream side of a transfer roller in a rotation direction of an image carrier, removes toner remaining on the image carrier after transfer of a toner image to an intermediate transfer member. After completion of an image forming operation, a controller causes the transfer roller to separate from the intermediate transfer member, cause the developing device to form on the image carrier a toner band to be supplied to the cleaning blade, and cause rotation of the image carrier to stop such that at least a part of the toner band formed on the image carrier stops within a section from a first position facing the transfer roller to a second position facing the cleaning blade in the rotation direction.
    Type: Application
    Filed: November 12, 2021
    Publication date: May 26, 2022
    Inventors: Yuya Nagatomo, Noriyuki Okada, Shozo Aiba, Naoki Mugita, Akinori Miyamoto, Kenta Matsuzaki, Masato Maejima
  • Publication number: 20220145898
    Abstract: The impeller of a rotating machine according to at least one embodiment of the present discloser is provided with: a disc; a cover disposed on an opposite side of a radial passage from the disc in an axial direction; and a blade disposed between the disc and the cover. In a dimensionless position along a camber line of the blade when the position of a leading edge of the blade is defined as 0 and the position of a trailing edge of the blade is defined as 1, a position where an angle difference between a first blade angle at a disc-side end portion of the blade and a second blade angle at a cover-side end portion of the blade is maximum is in a range of 0.5 or more and 1 or less. The first blade angle is ?10 degrees or more and 0 degrees or less at the position where the angle difference is maximum.
    Type: Application
    Filed: October 8, 2021
    Publication date: May 12, 2022
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Nobuyori Yagi, Noriyuki Okada, Chihiro Myoren, Akihiro Nakaniwa, Shuichi Yamashita, Jo Masutani, Hirofumi Higuchi, Takashi Oda
  • Publication number: 20210404481
    Abstract: An impeller of a rotating machine according to at least one embodiment includes: a disc; a cover disposed on an opposite side of a radial passage from the disc in an axial direction; and a blade disposed between the disc and the cover. A back surface of the disc has a recess extending in a circumferential direction in a radial range where the blade is disposed.
    Type: Application
    Filed: May 5, 2021
    Publication date: December 30, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Nobuyori Yagi, Noriyuki Okada, Takashi Oda
  • Patent number: 11022125
    Abstract: A centrifugal compressor includes: a rotor that includes a shaft rotatably disposed inside a casing and impellers fixed to an outer periphery of the shaft; a diaphragm that surrounds the impellers from an outer peripheral side; a suction-side casing head disposed separately from the diaphragm on a side on which fluid is sucked; a temperature controlling mechanism that is provided inside the suction-side casing head and is configured to control ambient temperature through flow of a heating medium; a heat insulating body disposed between the suction-side casing head and the diaphragm; and a locking structure that locks the heat insulating body and the suction-side casing head with each other to be relatively displaceable in a radial direction.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: June 1, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Noriyuki Okada, Yuji Masuda
  • Patent number: 10876546
    Abstract: A centrifugal compressor that includes a rotor including a shaft rotatably supported in a casing and an impeller secured to an outer periphery of the shaft; a diaphragm surrounding the impeller from an outer peripheral side; a suction side casing head disposed so as to be spaced apart from the diaphragm on a side where a fluid is suctioned; a temperature adjusting mechanism that is provided in the suction side casing head and configured to adjust a temperature of environment by flow of a heat medium; a heat shield that is provided between the suction side casing head and the diaphragm and defines, together with the impeller, a suction flow path through which the fluid is introduced to the impeller; and a plurality of straightening vanes that are provided in the suction flow path and configured to straighten the fluid flowing through the suction flow path.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: December 29, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Noriyuki Okada, Eiichi Yanagisawa, Kazutoshi Yoko, Yuji Masuda, Shinichiro Tokuyama
  • Patent number: 10816198
    Abstract: The present invention is a combustor provided with a combustor transition pipe connected to a turbine while interposing a transition pipe seal in between, including a flange portion provided at an end portion on a downstream side in a fluid flow direction of the combustor transition pipe, the flange portion projecting to radially inside and extending in a circumferential direction. The flange portion includes a pin hole into which a pin to position the transition pipe seal is inserted, a circumferential slit portion either extending within a range in a radial direction where the pin hole is formed or being located on radially outside of the pin hole and extending in the circumferential direction, and a hole portion on which part of the circumferential slit portion abuts.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: October 27, 2020
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Ryutaro Fujisawa, Hikaru Kurosaki, Noriyuki Okada, Taiki Kinoshita, Hiroki Shibata
  • Patent number: 10670031
    Abstract: A compressor includes a cylindrical casing, a bundle which includes a tubular stationary member and a rotor accommodated into the tubular stationary member, the bundle being configured to be inserted into an inner portion of the casing, and a roller configured to roll on an inner circumferential surface of the casing while supporting the bundle when the bundle is inserted into the inner portion of the casing along an axial direction. An outer circumferential surface of the roller is a continuous convex curved surface defined such that a curvature radius of an end side curved surface portion along a rotating shaft of the roller is smaller than a curvature radius of a center curved surface portion.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: June 2, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Noriyuki Okada, Hikaru Kurosaki, Naoki Hirata, Akira Hayashi, Satoru Yoshida, Toru Yoshimune
  • Publication number: 20200056617
    Abstract: A centrifugal compressor includes: a rotor that includes a shaft rotatably disposed inside a casing and impellers fixed to an outer periphery of the shaft; a diaphragm that surrounds the impellers from an outer peripheral side; a suction-side casing head disposed separately from the diaphragm on a side on which fluid is sucked; a temperature controlling mechanism that is provided inside the suction-side casing head and is configured to control ambient temperature through flow of a heating medium; a heat insulating body disposed between the suction-side casing head and the diaphragm; and a locking structure that locks the heat insulating body and the suction-side casing head with each other to be relatively displaceable in a radial direction.
    Type: Application
    Filed: February 20, 2018
    Publication date: February 20, 2020
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Noriyuki Okada, Yuji Masuda
  • Patent number: 10545444
    Abstract: An image forming apparatus includes a calculation portion that calculates an image ratio of the electrostatic image to be formed. A controller controls developer supply from a developer supplier to a developing unit based on the toner density output of an inductance sensor. An adjustment portion adjusts the density of the toner output from the toner density detection portion to a higher value in a case where the image ratio calculated by the calculation portion is higher than a predetermined image ratio.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: January 28, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Noriyuki Okada
  • Patent number: 10527062
    Abstract: A centrifugal compressor includes a rotor including: a shaft that extends along an axis and an impeller that is fixed to an outer surface of the shaft and feeds a fluid that flows into a first side in an axial direction to an outer side in a radial direction of the axis under pressure; a diaphragm that surrounds the impeller from an outer circumference side; a first casing head disposed at a second side of the diaphragm in the axial direction at an interval; a seal device disposed between the first casing head and the shaft; and a bearing device disposed at the second side in the axial direction with respect to the seal device and disposed between the first casing head and the shaft.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: January 7, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Eiichi Yanagisawa, Kazutoshi Yokoo, Noriyuki Okada, Yuji Masuda, Shinichiro Tokuyama
  • Patent number: 10496008
    Abstract: An image forming apparatus includes a developing device, an image bearing member, an image density detecting portion, a toner content detecting portion, a humidity sensor, a supplying portion, and a controller configured to control the supplying portion so that a toner content is between an upper limit and a lower limit thereof. The controller can execute setting control in which the target value of the toner content is set on the basis of an image density of a reference toner image. The controller sets the lower limit until execution of subsequent setting control, wherein the lower limit is higher when a humidity is a first humidity and an average image ratio is a first ratio than when the humidity is a second humidity higher than the first humidity and the average image ratio is a second ratio larger than the first ratio.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: December 3, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Noriyuki Okada
  • Patent number: 10400790
    Abstract: A compressor includes: an impeller attached to a rotation shaft; and a casing covering the impeller from the outside of the rotation shaft in a radial direction. The casing includes a plurality of stationary members that are connected to each other in an axial direction of the rotation shaft and in which a flow path-forming surface is toward the axial direction is formed. The flow path-forming surfaces of two stationary members adjacent in the axial direction face each other to form a flow path extending in the radial direction of the rotation shaft. At least one stationary member in the axial direction among the adjacent stationary members includes: a stationary member main body in which the flow path-forming surface is formed.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: September 3, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Noriyuki Okada, Nobuyori Yagi, Eiichi Yanagisawa, Shinichiro Tokuyama
  • Publication number: 20190101133
    Abstract: A centrifugal compressor that includes a rotor including a shaft rotatably supported in a casing and an impeller secured to an outer periphery of the shaft; a diaphragm surrounding the impeller from an outer peripheral side; a suction side casing head disposed so as to be spaced apart from the diaphragm on a side where a fluid is suctioned; a temperature adjusting mechanism that is provided in the suction side casing head and configured to adjust a temperature of environment by flow of a heat medium; a heat shield that is provided between the suction side casing head and the diaphragm and defines, together with the impeller, a suction flow path through which the fluid is introduced to the impeller; and a plurality of straightening vanes that are provided in the suction flow path and configured to straighten the fluid flowing through the suction flow path.
    Type: Application
    Filed: March 6, 2017
    Publication date: April 4, 2019
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Noriyuki Okada, Eiichi Yanagisawa, Kazutoshi Yoko, Yuji Masuda, Shinichiro Tokuyama
  • Publication number: 20190064698
    Abstract: An image forming apparatus includes a developing device, an image bearing member, an image density detecting portion, a toner content detecting portion, a humidity sensor, a supplying portion, and a controller configured to control the supplying portion so that a toner content is between an upper limit and a lower limit thereof. The controller can execute setting control in which the target value of the toner content is set on the basis of an image density of a reference toner image. The controller sets the lower limit until execution of subsequent setting control, wherein the lower limit is higher when a humidity is a first humidity and an average image ratio is a first ratio than when the humidity is a second humidity higher than the first humidity and the average image ratio is a second ratio larger than the first ratio.
    Type: Application
    Filed: August 24, 2018
    Publication date: February 28, 2019
    Inventor: Noriyuki Okada
  • Publication number: 20180347589
    Abstract: A centrifugal compressor includes a rotor including: a shaft that extends along an axis and an impeller that is fixed to an outer surface of the shaft and feeds a fluid that flows into a first side in an axial direction to an outer side in a radial direction of the axis under pressure; a diaphragm that surrounds the impeller from an outer circumference side; a first casing head disposed at a second side of the diaphragm in the axial direction at an interval; a seal device disposed between the first casing head and the shaft; and a bearing device disposed at the second side in the axial direction with respect to the seal device and disposed between the first casing head and the shaft.
    Type: Application
    Filed: November 13, 2015
    Publication date: December 6, 2018
    Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Eiichi Yanagisawa, Kazutoshi Yokoo, Noriyuki Okada, Yuji Masuda, Shinichiro Tokuyama