Patents by Inventor Masashi Miyazawa

Masashi Miyazawa 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: 20240052853
    Abstract: Provided is an axial fan including: an impeller cup including a blade extending in a radial direction; a motor configured to rotate the impeller cup; and a housing accommodating the impeller cup and the motor. The housing includes: a casing portion covering an outer periphery of the impeller cup; a base portion supporting the motor; and a spoke portion connecting the base portion and the casing portion. A vibration restraining portion is provided in a portion, which is connected to the spoke portion, of an outer peripheral portion of the base portion, and the vibration restraining portion has lower stiffness than the other portion of the outer peripheral portion.
    Type: Application
    Filed: July 7, 2023
    Publication date: February 15, 2024
    Inventors: Yoshihisa YAMAZAKI, Masashi MIYAZAWA
  • Patent number: 11091125
    Abstract: A wiper apparatus 4 is configured to wipe a rear windshield of a vehicle body rear portion. Above the vehicle body rear portion, the wiper apparatus is arranged on a rear side and a lower side of an ornamental member arranged to form a space to flow air between the ornamental member and an upper surface portion of the vehicle body rear portion. The wiper apparatus is provided with a flow straightening portion standing on the wiper apparatus and including a surface portion that inclines to a vehicle body rear side from a base portion toward a top portion.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: August 17, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Koji Okabe, Masashi Miyazawa, Masaki Kawamura
  • Patent number: 10781819
    Abstract: An impeller includes: a cylinder that includes a circular plate-shaped circular plate and a peripheral wall that extends from an outer peripheral edge of the circular plate along a rotation shaft of the impeller; and a blade mounted to an outer peripheral surface of the peripheral wall, the blade being configured to send air. The circular plate has a circular plate opening at a center, the circular plate opening penetrating the circular plate along the rotation shaft, and a sidewall opening is formed at the peripheral wall, the sidewall opening penetrating the peripheral wall along a direction different from a direction parallel to the rotation shaft.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: September 22, 2020
    Assignee: SANYO DENKI CO., LTD.
    Inventors: Jiro Watanabe, Masashi Miyazawa, Akira Nakayama
  • Publication number: 20190152444
    Abstract: A wiper apparatus 4 is configured to wipe a rear windshield of a vehicle body rear portion. Above the vehicle body rear portion, the wiper apparatus is arranged on a rear side and a lower side of an ornamental member arranged to form a space to flow air between the ornamental member and an upper surface portion of the vehicle body rear portion. The wiper apparatus is provided with a flow straightening portion standing on the wiper apparatus and including a surface portion that inclines to a vehicle body rear side from a base portion toward a top portion.
    Type: Application
    Filed: January 24, 2019
    Publication date: May 23, 2019
    Inventors: Koji OKABE, Masashi MIYAZAWA, Masaki KAWAMURA
  • Publication number: 20160290346
    Abstract: An impeller includes: a cylinder that includes a circular plate-shaped circular plate and a peripheral wall that extends from an outer peripheral edge of the circular plate along a rotation shaft of the impeller; and a blade mounted to an outer peripheral surface of the peripheral wall, the blade being configured to send air. The circular plate has a circular plate opening at a center, the circular plate opening penetrating the circular plate along the rotation shaft, and a sidewall opening is formed at the peripheral wall, the sidewall opening penetrating the peripheral wall along a direction different from a direction parallel to the rotation shaft.
    Type: Application
    Filed: March 29, 2016
    Publication date: October 6, 2016
    Inventors: Jiro WATANABE, Masashi MIYAZAWA, Akira NAKAYAMA
  • Publication number: 20140105763
    Abstract: An axial-flow fan according to the present disclosure can increase the amount of the airflow and simultaneously reduce the noise level. A plurality of stationary blades 11A to 11D are curved, in a convex manner, toward a rotating direction of an impeller. The plurality of stationary blades 11A to 11D are generally inclined so that discharge-side edge portions 11d thereof are located more forward than suction-side edge portions 11c thereof in the rotating direction. An inclination angle ?4 of each of the plurality of stationary blades 11A to 11D in the vicinity of the external end portion 11a is larger than the inclination angle ?3 in the vicinity of the internal end portion 11b. The inclination angle is gradually changed from the vicinity of the external end portion 11a toward the vicinity of the internal end portion 11b.
    Type: Application
    Filed: December 20, 2013
    Publication date: April 17, 2014
    Applicant: Sanyo Denki Co., Ltd.
    Inventors: Katsumichi Ishihara, Honami Oosawa, Masashi Miyazawa, Tomoaki Ikeda
  • Patent number: 8247935
    Abstract: A brushless motor stator is provided that may be applied to a plurality of types of motors having different rotational speeds, merely by providing one type of a circuit substrate. A pair of fitting convex portions that project radially outside of a virtual circle centering on a center line C are formed on one insulator divided body of a slot insulator. Three pairs of diagonally located fitting concave portions are formed in an inner circumferential wall portion surrounding a through-hole of a circuit substrate. The pair of fitting convex portions of the one insulator divided body are fitted in one of the three pairs of fitting concave portions. With this, a positional relationship between three hall elements and stator magnetic poles is selected, corresponding to the speed range of a motor to be used.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: August 21, 2012
    Assignee: Sanyo Denki Co., Ltd.
    Inventors: Izumi Onozawa, Masashi Miyazawa
  • Patent number: 7762767
    Abstract: The present invention provides an axial-flow fan capable of entirely cooling an object to be cooled even when the distance between the object to be cooled and an air discharge opening of the axial-flow fan is short. A plurality of stationary blades 11A to 11E are disposed at intervals in a rotating direction of a rotor and located inside an air discharge opening 16 of an air channel 19. Each of the plurality of stationary blades 11A to 11E has an external end portion 11a connected to an inner wall portion of a fan housing 3, an internal end portion 11b connected to a peripheral wall portion 11B of a motor case 10, a discharge-side edge portion 11c formed between the external end portion 11a and the internal end portion 11b and located at a side of the air discharge opening 16, and a suction-side edge portion 11d formed between the external end portion 11a and the internal end portion 11b and located at a side of the air suction opening 14.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: July 27, 2010
    Assignee: Sanyo Denki Co., Ltd.
    Inventors: Masashi Miyazawa, Toshiki Ogawara, Tomoaki Ikeda
  • Publication number: 20100084950
    Abstract: A brushless motor stator is provided that may be applied to a plurality of types of motors having different rotational speeds, merely by providing one type of a circuit substrate. A pair of fitting convex portions that project radially outside of a virtual circle centering on a center line C are formed on one insulator divided body of a slot insulator. Three pairs of diagonally located fitting concave portions are formed in an inner circumferential wall portion surrounding a through-hole of a circuit substrate. The pair of fitting convex portions of the one insulator divided body are fitted in one of the three pairs of fitting concave portions. With this, a positional relationship between three hall elements and stator magnetic poles is selected, corresponding to the speed range of a motor to be used.
    Type: Application
    Filed: October 6, 2009
    Publication date: April 8, 2010
    Applicant: SANYO DENKI CO., LTD.
    Inventors: Izumi Onozawa, Masashi Miyazawa
  • Patent number: 7527085
    Abstract: A small water-cooling type electronic component cooling apparatus is provided. The electronic component cooling apparatus comprises a so-called water-cooling heat sink 3, a radiator 7 cooled by an electric fan 5, first and second coolant paths 9, 11 for circulating a coolant between the heat sink 3 and the radiator 7, and an electric pump 13 to supply a moving energy to the coolant. The electric pump 13 is arranged at a position facing the heat-radiating portion of the radiator 7.
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: May 5, 2009
    Assignees: Sanyo Denki Co., Ltd., Intel Corporation
    Inventors: Masayuki Iijima, Tomoaki Ikeda, Masashi Miyazawa, Kouji Ueno, Paul J. Gwin, Brian J. Long, Peter A. Davison, Rolf A. Konstad
  • Patent number: 7367382
    Abstract: The present provides a heat-emitting element cooling apparatus which has a higher heat-emitting efficiency than that of conventional heat-emitting element cooling apparatus. A heat-emitting element cooling apparatus 1 includes a heat sink 7 and a fan unit 5. The heat sink 7 has a base 33 onto which a heat-emitting element is to be mounted, radiation fins of a first type 35, and radiation fins of a second type 37. The radiation fins 35 extend from an upper surface 33A in an upward direction. The radiation fins 37 extend from either of two side surfaces 33B and 33C in either of rightward and leftward directions. The radiation fins 35 and 37 continuously extend in forward and rearward directions respectively.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: May 6, 2008
    Assignee: Sanyo Denki Co., Ltd.
    Inventors: Masashi Miyazawa, Tomoaki Ikeda, Toshiki Ogawara
  • Patent number: 7251137
    Abstract: An electronic component, cooling apparatus comprises a so-called water-cooled heat sink, a radiator to be cooled by a motor-driven fan, first and second coolant paths for circulating a coolant between the heat sink and the radiator, and a motor-driven pump for giving a moving energy to the coolant. A plurality of engaging pieces of the motor-driven fan and a plurality of engaged portion of the radiator are engaged to connect the motor-driven fan and the radiator.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: July 31, 2007
    Assignee: Sanyo Denki Co., Ltd.
    Inventors: Masayuki Iijima, Masashi Miyazawa, Kouji Ueno
  • Publication number: 20070122271
    Abstract: An axial-flow fan according to the present disclosure can increase the amount of the airflow and simultaneously reduce the noise level. A plurality of stationary blades 11A to 11D are curved, in a convex manner, toward a rotating direction of an impeller. The plurality of stationary blades 11A to 11D are generally inclined so that discharge-side edge portions 11d thereof are located more forward than suction-side edge portions 11c thereof in the rotating direction. An inclination angle ?4 of each of the plurality of stationary blades 11A to 11D in the vicinity of the external end portion 11a is larger than the inclination angle ?3 in the vicinity of the internal end portion 11b. The inclination angle is gradually changed from the vicinity of the external end portion 11a toward the vicinity of the internal end portion 11b.
    Type: Application
    Filed: November 28, 2006
    Publication date: May 31, 2007
    Applicant: SANYO DENKI CO., LTD.
    Inventors: Katsumichi Ishihara, Honami Oosawa, Masashi Miyazawa, Tomoaki Ikeda
  • Publication number: 20070122285
    Abstract: The present invention provides an axial-flow fan capable of entirely cooling an object to be cooled even when the distance between the object to be cooled and an air discharge opening of the axial-flow fan is short. A plurality of stationary blades 11A to 11E are disposed at intervals in a rotating direction of a rotor and located inside an air discharge opening 16 of an air channel 19. Each of the plurality of stationary blades 11A to 11E has an external end portion 11a connected to an inner wall portion of a fan housing 3, an internal end portion 11b connected to a peripheral wall portion 11B of a motor case 10, a discharge-side edge portion 11c formed between the external end portion 11a and the internal end portion 11b and located at a side of the air discharge opening 16, and a suction-side edge portion 11d formed between the external end portion 11a and the internal end portion 11b and located at a side of the air suction opening 14.
    Type: Application
    Filed: November 28, 2006
    Publication date: May 31, 2007
    Applicant: SANYO DENKI CO., LTD.
    Inventors: Masashi Miyazawa, Toshiki Ogawara, Tomoaki Ikeda
  • Publication number: 20070123162
    Abstract: The present invention provides a component cooling apparatus in which it is possible to suppress resonation of a fan housing due to the rotation of the fan. Four extended portions 33A, 33B extending into an air suction opening 25a are integrally formed with the duct 5. Projected portions 35A, 35B projecting toward the fan 3are integrally formed with the extended portions 33A, 33B respectively. The end portions of the projected portions 35A, 35B are arranged in contact with end portions of corner portions which are located around the housing-side mount holes 21a of the flange portion 21. The fan 3 is fixed inside the duct 5 by inserting a mounting member such as a screw and a bolt into each pair of a housing-side mount hole 21a and a duct-side mount hole 33a with four housing-side mount hole 21a and four duct-side mount hole 33a being aligned with each other. Accordingly, the fan housing 11 and the duct 5 are not in contact with each other except at mounting portions around the housing-side mount holes 21a.
    Type: Application
    Filed: November 22, 2006
    Publication date: May 31, 2007
    Applicant: SANYO DENKI CO., LTD.
    Inventors: Masashi Miyazawa, Toshiki Ogawara, Tomoaki Ikeda
  • Publication number: 20060254750
    Abstract: The present provides a heat-emitting element cooling apparatus which has a higher heat-emitting efficiency than that of conventional heat-emitting element cooling apparatus. A heat-emitting element cooling apparatus 1 includes a heat sink 7 and a fan unit 5. The heat sink 7 has a base 33 onto which a heat-emitting element is to be mounted, radiation fins of a first type 35, and radiation fins of a second type 37. The radiation fins 35 extend from an upper surface 33A in an upward direction. The radiation fins 37 extend from either of two side surfaces 33B and 33C in either of rightward and leftward directions. The radiation fins 35 and 37 continuously extend in forward and rearward directions respectively.
    Type: Application
    Filed: May 12, 2006
    Publication date: November 16, 2006
    Applicant: Sanyo Denki Co., Ltd.
    Inventors: Masashi Miyazawa, Tomoaki Ikeda, Toshiki Ogawara
  • Publication number: 20060023425
    Abstract: An electronic component cooling apparatus comprises a so-called water-cooled heat sink, a radiator to be cooled by a motor-driven fan, first and second coolant paths for circulating a coolant between the heat sink and the radiator, and a motor-driven pump for giving a moving energy to the coolant. A plurality of engaging pieces of the motor-driven fan and a plurality of engaged portion of the radiator are engaged to connect the motor-driven fan and the radiator.
    Type: Application
    Filed: August 25, 2005
    Publication date: February 2, 2006
    Applicant: SANYO DENKI CO., LTD.
    Inventors: Masayuki Iijima, Masashi Miyazawa, Kouji Ueno
  • Patent number: D529450
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: October 3, 2006
    Assignee: Sanyo Denki Co., Ltd.
    Inventors: Masashi Miyazawa, Tomoaki Ikeda, Toshiki Ogawara
  • Fan
    Patent number: D602577
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: October 20, 2009
    Assignee: Sanyo Denki Co., Ltd.
    Inventors: Masashi Miyazawa, Toshiki Ogawara, Tomoaki Ikeda
  • Fan
    Patent number: D637276
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: May 3, 2011
    Assignee: Sanyo Denki Co., Ltd.
    Inventors: Yoshinori Miyabara, Kouji Ueno, Tomoaki Ikeda, Masashi Miyazawa, Haruhisa Maruyama