Patents by Inventor Yasuyuki Tsutatani

Yasuyuki Tsutatani 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: 9214178
    Abstract: A method of fabricating a magnetic recording medium sequentially forms a magnetic recording layer, a protection layer, and a lubricant layer on a stacked body. The stacked body is enclosed in a transfer container unit without exposing the stacked body to atmosphere after forming the protection layer on the stacked body by a deposition apparatus, and the transfer container unit is transported to a vapor-phase lubrication deposition apparatus. The stacked body is removed from the transfer container unit without exposing the stacked body to the atmosphere, in order to form the lubricant layer on the stacked body within the vapor-phase lubrication deposition apparatus.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: December 15, 2015
    Assignee: SHOWA DENKO K.K.
    Inventors: Yasuyuki Tsutatani, Daisuke Shiomi
  • Patent number: 9196285
    Abstract: A method of fabricating a magnetic recording medium sequentially forms a magnetic recording layer, a protection layer, and a lubricant layer on a stacked body. The stacked body is enclosed in a transfer container unit without exposing the stacked body to atmosphere after forming the protection layer on the stacked body by a deposition apparatus, and the transfer container unit is transported to a vapor-phase lubrication deposition apparatus. The stacked body is removed from the transfer container unit without exposing the stacked body to the atmosphere, in order to form the lubricant layer on the stacked body within the vapor-phase lubrication deposition apparatus.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: November 24, 2015
    Assignee: SHOWA DENKO K.K.
    Inventors: Yasuyuki Tsutatani, Daisuke Shiomi, Satoru Ueno
  • Publication number: 20140199476
    Abstract: A method of fabricating a magnetic recording medium sequentially forms a magnetic recording layer, a protection layer, and a lubricant layer on a stacked body. The stacked body is enclosed in a transfer container unit without exposing the stacked body to atmosphere after forming the protection layer on the stacked body by a deposition apparatus, and the transfer container unit is transported to a vapor-phase lubrication deposition apparatus. The stacked body is removed from the transfer container unit without exposing the stacked body to the atmosphere, in order to form the lubricant layer on the stacked body within the vapor-phase lubrication deposition apparatus.
    Type: Application
    Filed: January 8, 2014
    Publication date: July 17, 2014
    Applicant: SHOWA DENKO K,K.
    Inventors: Yasuyuki TSUTATANI, Daisuke SHIOMI
  • Publication number: 20140099437
    Abstract: A method of fabricating a magnetic recording medium sequentially forms a magnetic recording layer, a protection layer, and a lubricant layer on a stacked body. The stacked body is enclosed in a transfer container unit without exposing the stacked body to atmosphere after forming the protection layer on the stacked body by a deposition apparatus, and the transfer container unit is transported to a vapor-phase lubrication deposition apparatus. The stacked body is removed from the transfer container unit without exposing the stacked body to the atmosphere, in order to form the lubricant layer on the stacked body within the vapor-phase lubrication deposition apparatus.
    Type: Application
    Filed: September 19, 2013
    Publication date: April 10, 2014
    Applicant: SHOWA DENKO K.K.
    Inventors: Yasuyuki TSUTATANI, Daisuke SHIOMI, Satoru UENO
  • Publication number: 20140079877
    Abstract: A method of fabricating a magnetic recording medium sequentially forms a magnetic recording layer, a protection layer, and a lubricant layer on a stacked body. The lubricant layer is formed by vapor-phase lubrication without exposing the stacked body to atmosphere after forming the protection layer on the stacked body. A region having a gas pressure P3 is provided in a transport path of the stacked body after the formation of the protection layer and before the formation of the lubricant layer, satisfying relationships P3>P1 and P3>P2, where P1 denotes a process gas pressure at a time of forming the protection layer, and P2 denotes a process gas pressure at a time of forming the lubricant layer.
    Type: Application
    Filed: September 4, 2013
    Publication date: March 20, 2014
    Applicant: SHOWA DENKO K.K.
    Inventors: Yasuyuki Tsutatani, Daisuke Shiomi, Satoru Ueno, Ichiro Ota, Takehiko Okabe