Patents by Inventor Yuji Shirakawa

Yuji Shirakawa 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: 9657713
    Abstract: A rotary shaft device (3) includes a shaft body (20) rotatably supported by angular bearings (35, 36), and a support body (40) configured to rotatably support the shaft body (20) via the angular bearings (35, 36). A ball rolling groove (21) having a Gothic arch shape in which rolling elements (39) of the angular bearings (35, 36) roll is formed in an outer circumferential surface of the shaft body (20).
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: May 23, 2017
    Assignee: THK CO., LTD.
    Inventors: Yuji Shirakawa, Yuki Hayashi
  • Publication number: 20150098797
    Abstract: A rotary shaft device (3) includes a shaft body (20) rotatably supported by angular bearings (35, 36), and a support body (40) configured to rotatably support the shaft body (20) via the angular bearings (35, 36). A ball rolling groove (21) having a Gothic arch shape in which rolling elements (39) of the angular bearings (35, 36) roll is formed in an outer circumferential surface of the shaft body (20).
    Type: Application
    Filed: April 10, 2013
    Publication date: April 9, 2015
    Applicant: THK CO., LTD.
    Inventors: Yuji Shirakawa, Yuki Hayashi
  • Patent number: 6725508
    Abstract: A first support element and a second support element are arranged opposite to each other. A connection element is arranged so as to connect one ends of the first and second support element to each other therethrough, so that the first support element, second support element and connection element cooperate together to form a substantially U-shape in section. A press element is formed at a free end of the second support element in a manner to be extended from the free end through a hinge groove. The press element is inwardly bent at the hinge groove to abut at a distal end thereof against an inner surface of the first support element, so that papers or the like are inserted between the first support element and the press element, resulting in the papers or the like being firmly interposedly held by the clip.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: April 27, 2004
    Assignee: Nirei Industry Co., Ltd.
    Inventors: Masao Noda, Yuji Shirakawa, Shigenobu Nirei
  • Patent number: 6527017
    Abstract: A binding apparatus capable of facilitating reliable tightening of a binding belt without directly touching the binding belt. The apparatus includes a body provided therein with a belt passage and a fastener passage. The belt passage functions to guide therethrough a continuous binding belt formed on one side surface thereof with asperities in a rack-like manner. Fasteners guided in the fastener passage are each provided with holding pawls engageable with the asperities of the binding belt. The belt passage is formed with an opening through which the binding belt is exposed. A tightening lever is pivotally mounted on the body and includes a gear portion releasably engaged with the asperities of the binding belt exposed from the opening of the belt passage. A cutter cuts the binding belt while a foremost one of the fasteners holds a distal end of a portion of the binding belt wound around an article on one of the holding pawls of the fastener to bind the article with the portion of the binding belt.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: March 4, 2003
    Assignee: Nirei Industry Co., Ltd.
    Inventors: Yuji Shirakawa, Shigenobu Nirei
  • Publication number: 20010039976
    Abstract: A binding apparatus capable of facilitating reliable tightening of a binding belt without directly touching the binding belt. The apparatus includes a body provided therein with a belt passage and a fastener passage. The belt passage functions to guide therethrough a continuous binding belt formed on one side surface thereof with asperities in a rack-like manner. Fasteners guided in the fastener passage are each provided with holding pawls engageable with the asperities of the binding belt. The belt passage is formed with an opening through which the binding belt is exposed. A tightening lever is pivotally mounted on the body and includes a gear portion releasably engaged with the asperities of the binding belt exposed from the opening of the belt passage. A cutter cuts the binding belt while a foremost one of the fasteners holds a distal end of a portion of the binding belt wound around an article on one of the holding pawls of the fastener to bind the article with the portion of the binding belt.
    Type: Application
    Filed: February 16, 2001
    Publication date: November 15, 2001
    Applicant: NIREI INDUSTRY CO., LTD.
    Inventors: Yuji Shirakawa, Shigenobu Nirei
  • Patent number: 5379494
    Abstract: Disclosed is a binder for bundling electric wires or the like, which comprises a long bundling band of synthetic resin which is to be wound like a loop around objects to be bundled such as electric wires or the like to thereby bundle the objects and which has on its surface a plurality of convex-concave portions formed so as to be lake a rack, and a stopper of synthetic resin having a box-like opening portion through which two portions of the bundling band can be inserted with the respective back surfaces of the two portions put on each other, and further having a pair of pawl members formed on the inner opposite walls of the opening portion for engaging with the convex-concave portions of the bundling band inserted through the opening portion, wherein substantially intermediate portions of the pair of pawl members are connected to the inner opposite walls of the box-like opening portion respectively, at least one pawl portion is formed at a top end of each of the pair of pawl members so as to engage with the
    Type: Grant
    Filed: January 13, 1993
    Date of Patent: January 10, 1995
    Assignee: Nirei Industry Co., Ltd.
    Inventor: Yuji Shirakawa