Patents by Inventor Hiroshi Fukudome

Hiroshi Fukudome 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: 10190579
    Abstract: A balance weight includes a main weight portion extending over a range defined by a circular-arc circumferential edge centered at a rotational shaft hole side and a pair of virtual end surfaces located on the circular-arc circumferential edge on both sides of the rotational shaft hole, a pair of extension weight portions extending from the pair of virtual end surfaces to an opposite circular-arc side of the rotational shaft hole from the circular-arc circumferential edge, the rotational shaft hole provided at the main weight portion so as to be located on a central side of the circular-arc circumferential edge, a crank shaft attachment protrusion, a crank shaft hole provided at the crank shaft attachment protrusion radially eccentrically with respect to the rotational shaft hole, and a pair of spaces formed between positions on both sides of the crank shaft attachment protrusion and the pair of extension weight portions, respectively.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: January 29, 2019
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Tsutomu Ito, Hiroshi Fukudome, Naofumi Harada
  • Patent number: 10189328
    Abstract: A bracket (11) has an annular portion (12) provided with a trapezoidal convex portion (13) extending from an inner peripheral edge (12C) to outer peripheral edge (12D) of the annular portion. The convex portion has a top region (13A), an outer wall-side falling region (13B), and an inner wall-side falling region (13C). The annular portion and one vehicle body mounting portion (17) are connected to each other through a non-linear connecting portion (20), and the annular portion and the other vehicle body mounting portion (18) are connected to each other through a non-linear connecting portion (21). This structure makes it possible to increase the moment of inertia of area of the annular portion and to increase the flexural rigidity of the bracket. Further, it is possible to suppress a problem that the connecting portion (20) and the connecting portion (21) become nodes of vibration.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: January 29, 2019
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Naofumi Harada, Hiroshi Fukudome, Tsutomu Ito
  • Publication number: 20180015803
    Abstract: A bracket (11) has an annular portion (12) provided with a trapezoidal convex portion (13) extending from an inner peripheral edge (12C) to outer peripheral edge (12D) of the annular portion. The convex portion has a top region (13A), an outer wall-side falling region (13B), and an inner wall-side falling region (13C). The annular portion and one vehicle body mounting portion (17) are connected to each other through a non-linear connecting portion (20), and the annular portion and the other vehicle body mounting portion (18) are connected to each other through a non-linear connecting portion (21). This structure makes it possible to increase the moment of inertia of area of the annular portion and to increase the flexural rigidity of the bracket. Further, it is possible to suppress a problem that the connecting portion (20) and the connecting portion (21)become nodes of vibration.
    Type: Application
    Filed: December 24, 2015
    Publication date: January 18, 2018
    Applicant: HITACHI AUTOMOTIVE SYSTEMS ,LTD.
    Inventors: Naofumi HARADA, Hiroshi FUKUDOME, Tsutomu ITO
  • Publication number: 20170218933
    Abstract: A balance weight includes a main weight portion extending over a range defined by a circular-arc circumferential edge centered at a rotational shaft hole side and a pair of virtual end surfaces located on the circular-arc circumferential edge on both sides of the rotational shaft hole, a pair of extension weight portions extending from the pair of virtual end surfaces to an opposite circular-arc side of the rotational shaft hole from the circular-arc circumferential edge, the rotational shaft hole provided at the main weight portion so as to be located on a central side of the circular-arc circumferential edge, a crank shaft attachment protrusion, a crank shaft hole provided at the crank shaft attachment protrusion radially eccentrically with respect to the rotational shaft hole, and a pair of spaces formed between positions on both sides of the crank shaft attachment protrusion and the pair of extension weight portions, respectively.
    Type: Application
    Filed: May 28, 2015
    Publication date: August 3, 2017
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Tsutomu ITO, Hiroshi FUKUDOME, Naofumi HARADA
  • Patent number: 8821092
    Abstract: A fastening member includes a bolt and a nut for attaching a compressor to a vehicle body. A non-circular relative rotation prevention portion is formed below a head portion of the bolt. A washer is non-rotatably press fitted around the relative rotation prevention portion. Before the attachment, the head portion and the washer are temporarily fixed with a space generated therebetween. An elastic body, which is attached to the compressor, is disposed between the washer and the nut. A cylindrical member is provided at an inner circumference of the elastic body. As a result, when the nut is screwed, an axial force of the nut is transmitted to the washer via the cylindrical member, and the space between the washer and the head portion is reduced, completing the attachment.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 2, 2014
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Shogo Nambara, Hiroshi Fukudome, Kazuhisa Yama
  • Publication number: 20130259596
    Abstract: The present invention provides a fastening member and a compressor apparatus capable of improving workability of assembling. A fastening member includes a bolt and a nut for attaching a compressor to a vehicle body. A non-circular relative rotation prevention portion is formed below a head portion of the bolt. A washer is non-rotatably press fitted around the relative rotation prevention portion. Before the attachment, the head portion and the washer are temporarily fixed with a space generated therebetween. An elastic body, which is attached to the compressor, is disposed between the washer and the nut. A cylindrical member is provided at an inner circumference of the elastic body. As a result, when the nut is screwed, an axial force of the nut is transmitted to the washer via the cylindrical member, and the space between the washer and the head portion reduces, completing the attachment.
    Type: Application
    Filed: March 15, 2013
    Publication date: October 3, 2013
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Shogo NAMBARA, Hiroshi FUKUDOME, Kazuhisa YAMA
  • Patent number: 6231321
    Abstract: This invention pertains to an air compressor having a cylinder head with an air supply passage communicating with a discharge hole. First and second exhaust passages are arranged in parallel between the air supply passage and an exhaust port. A pilot-operated switching valve is located at an intermediate position in the first exhaust passage. A solenoid-operated exhaust valve is located at an intermediate position in the second exhaust passage. The solenoid-operated exhaust valve is selectively opened or closed by an externally supplied electric current, thereby controlling a pilot pressure applied to a valving element of the pilot-operated switching valve. The valving element is rested on or separated from a valve seat by the pilot pressure. The compressed air discharge speed can be increased without increasing the size of the cylinder head, and vehicle height adjustment, for example, can be made in a reduced period of time.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: May 15, 2001
    Assignee: Tokico Ltd.
    Inventors: Hiroshi Fukudome, Yoichi Mizutani, Kan Kobayashi
  • Patent number: 4826902
    Abstract: A coating composition based on an acrylic resin which is useful for preparing lubricated steel products such as steel sheets or tubes is disclosed. The coating composition contains as additives a rust preventive which is a mixture of a sulfonamidecarboxylic acid and an cyclic amine and a water repellent. It exhibits improved rust-preventing properties when lubricated steel products having a coating film formed from the coating composition are stored for a prolonged period under coiled or stacked conditions.
    Type: Grant
    Filed: March 11, 1988
    Date of Patent: May 2, 1989
    Assignees: Nippon Oil & Fats Co., Ltd., Sumitomo Metal Industries, Ltd.
    Inventors: Hiroki Hanabata, Hideo Kawaguchi, Hiroshi Fukudome, Ryoichi Noumi, Hiromi Izaiku, Koichi Komai, Kisuke Yoshida
  • Patent number: 4432851
    Abstract: A method of applying electrodeposition coating onto metallic material by continuously passing the metallic material through an electrodeposition bath comprising an alkaline-solution soluble resin, solid lubricant and water is disclosed.
    Type: Grant
    Filed: November 10, 1982
    Date of Patent: February 21, 1984
    Assignees: Sumitomo Metal Industries, Ltd., Nippon Oil & Fats Co., Ltd.
    Inventors: Sachio Matsuo, Tadashi Sakane, Ryoichi Noumi, Shinji Fujiwara, Hiroshi Fukudome, Rikizo Kobashi, Hiroumi Izaiku, Toshinari Yazawa