Patents by Inventor Kazushi Yanagimoto

Kazushi Yanagimoto 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).

  • Method of manufacturing asymmetric gear, asymmetric gear, non-circular and asymmetric gear, gear mechanism, and barrel finishing machine
    Patent number: 6991522
    Abstract: An object of the present invention is to provide a practical gear and gear train which can be used in an actual gear drive system. Another object of the present invention is to provide a non-circular and asymmetrical gear which is practically used in view of durability, a gear train using that gear, and a barrel finishing machine using that gear. Non-circular and asymmetrical gear 10 has a plurality of tooth profiles 20, each of which comprises a substantially semicircular top curve line 16 and a substantially semicircular bottom curved line 18. A center point 22 of the top curved line 16 is on a pitch line 24, and a center point 26 of the bottom curved line 18 lies inside the pitch line 24.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: January 31, 2006
    Inventors: Kazushi Yanagimoto, Takehiro Otsubo, Katsuyuki Nakayama, Kazuaki Sakai
  • Method of manufacturing asymmetric gear, asymmmetric gear, non-circular and asymmetric gear, gear mechanism, and barrel finishing machine
    Publication number: 20040064947
    Abstract: An object of the present invention is to provide a practical gear and gear train which can be used in an actual gear drive system. Another object of the present invention is to provide a non-circular and asymmetrical gear which is practically used in view of durability, a gear train using that gear, and a barrel finishing machine using that gear. Non-circular and asymmetrical gear 10 has a plurality of tooth profiles 20 in which an addendum circle 16 of a substantially semicircular shape is connected to a dedendum circle 18 of a substantially semicircular shape. A center point 22 of the addendum circle 16 is on a pitch line 24, and a center point 26 of the dedendum circle 18 lies inside the pitch line 24.
    Type: Application
    Filed: May 30, 2003
    Publication date: April 8, 2004
    Inventors: Kazushi Yanagimoto, Takehiro Otsubo, Katsuyuki Nakayama, Kazuaki Sakai