Patents by Inventor Sumio Sakata

Sumio Sakata 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).

  • SURFACE STRUCTURE OF ARTICLE
    Publication number: 20170030700
    Abstract: Irregularities are formed on the surface of an article. At the top of each protrusion of the irregularities, fine irregularities finer than the irregularities are formed. The irregularities are formed so that, in a unit area of the surface of the article touched by a human finger, a ratio of a contact area between the finger and the article is in the range of 35% to 90%. It is preferable to form the irregularities so that the ratio of a contact area between the finger and the article is in the range of 45% to 80%.
    Type: Application
    Filed: August 1, 2016
    Publication date: February 2, 2017
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Hiroyuki TANAKA, Sumio SAKATA, Akane MOTOFUJI, Kazuya OKAZAKI, Fumi TOYOFUKU, Makoto TAMURAYA
  • SURFACE STRUCTURE OF ARTICLE
    Publication number: 20140147629
    Abstract: Irregularities are formed on the surface of an article. At the top each protrusion of the irregularities, fine irregularities finer than the irregularities are formed. The irregularities are formed so that, in a unit area of the surface of the article touched by a human finger, a ratio of a contact area between the finger and the article is in the range of 35% to 90%. It is preferable to form the irregularities so that the ratio of a contact area between the finger and the article is in the range of 45% to 80%.
    Type: Application
    Filed: February 29, 2012
    Publication date: May 29, 2014
    Inventors: Hiroyuki Tanaka, Sumio Sakata, Akane Motofuji, Kazuya Okazaki, Fumi Toyofuku, Makoto Tamuraya