Patents by Inventor Seiichi Toyonaga

Seiichi Toyonaga 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).

  • Female screw component and fastening component utilizing the same
    Patent number: 9004834
    Abstract: A female thread member capable of preventing seizing caused by inclined insertion, and being smoothly fastened from any directions in which a bolt is inserted, and a fastening member using the female thread member. A non-thread portion is formed on an inner peripheral surface of a female thread member body having a female thread for a length corresponding to at least one pitch from an end surface on a bolt-inserting side, and a projection which comes into contact with a flank surface of a male thread of an inserted bolt is formed on a line extending from a helical line of the female thread. The female thread member is used in combination with the bolt having no incomplete thread portion, and there is no adverse possibility of seizing regardless of any directions in which the bolt is inserted.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: April 14, 2015
    Assignees: Aoyama Seisakusho Co., Ltd., Toyota Jidosha Kabushiki kaisha
    Inventors: Seiichi Toyonaga, Satoshi Fujiura, Kouichirou Kouguchi, Yoshihiro Murase, Satoshi Konagaya, Masahito Iwata, Sadayoshi Hasegawa
  • FEMALE SCREW COMPONENT AND FASTENING COMPONENT UTILIZING THE SAME
    Publication number: 20110318136
    Abstract: A female thread member capable of preventing seizing caused by inclined insertion, and being smoothly fastened from any directions in which a bolt is inserted, and a fastening member using the female thread member. A non-thread portion is formed on an inner peripheral surface of a female thread member body having a female thread for a length corresponding to at least one pitch from an end surface on a bolt-inserting side, and a projection which comes into contact with a flank surface of a male thread of an inserted bolt is formed on a line extending from a helical line of the female thread. The female thread member is used in combination with the bolt having no incomplete thread portion, and there is no adverse possibility of seizing regardless of any directions in which the bolt is inserted.
    Type: Application
    Filed: March 15, 2010
    Publication date: December 29, 2011
    Applicants: Toyota Jidosha Kabushiki Kaisha, Aoyama Seisakusho Co., Ltd.
    Inventors: Seiichi Toyonaga, Satoshi Fujiura, Kouichirou Kouguchi, Yoshihiro Murase, Satoshi Konagaya, Masahito Iwata, Sadayoshi Hasegawa