Patents by Inventor Hidenori CHIHARA

Hidenori CHIHARA 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).

  • Leaf spring device and method for manufacturing leaf spring device
    Patent number: 10549594
    Abstract: A leaf spring device includes a main leaf made of a steel plate including an elastic section configured to generate elastic force when bent; and an eye section formed in an end portion of the elastic section, the elastic section and the eye section being tempered. There is also provided a method for manufacturing the leaf spring device. The eye section is formed by rolling the end of the elastic section into a circular form. The eye section is tempered at a higher temperature than the elastic section.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: February 4, 2020
    Assignee: NHK SPRING CO., LTD.
    Inventors: Hidenori Chihara, Hiroto Tsuji, Shinichiro Kuwatsuka
  • SPACE MAINTAINING MEMBER AND LEAF SPRING USING SAME
    Publication number: 20190078636
    Abstract: This space maintaining member is provided between leaf springs, and has a main portion and seal portions that are provided on the ends of the main portion and that are fitted to adjacent leaf springs so as to seal the same from the external space.
    Type: Application
    Filed: March 6, 2017
    Publication date: March 14, 2019
    Inventors: Jyunichi YANO, Hidenori CHIHARA, Yuusuke TANAKA
  • GAP RETAINING MEMBER AND LAMINATED LEAF SPRING PROVIDED WITH SAME
    Publication number: 20190078637
    Abstract: A gap retaining member is provided between leaf springs and has a surface along a curved outer surface of a center portion of an adjacent leaf spring.
    Type: Application
    Filed: March 7, 2017
    Publication date: March 14, 2019
    Inventors: Hidenori CHIHARA, Manabu TSUCHIDA
  • LEAF SPRING DEVICE AND METHOD FOR MANUFACTURING LEAF SPRING DEVICE
    Publication number: 20170313149
    Abstract: A leaf spring device includes a main leaf made of a steel plate including an elastic section configured to generate elastic force when bent; and an eye section formed in an end portion of the elastic section, the elastic section and the eye section being tempered. There is also provided a method for manufacturing the leaf spring device. The eye section is formed by rolling the end of the elastic section into a circular form. The eye section is tempered at a higher temperature than the elastic section.
    Type: Application
    Filed: November 10, 2015
    Publication date: November 2, 2017
    Inventors: Hidenori CHIHARA, Hiroto TSUJI, Shinichiro KUWATSUKA