Patents by Inventor Tomoyuki Kotaki

Tomoyuki Kotaki 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).

  • MAGNETIC RECORDING MEDIUM
    Publication number: 20060292402
    Abstract: A magnetic recording medium has at least a non-magnetic layer and a magnetic layer formed in that order on one surface of a non-magnetic support. The non-magnetic layer is formed using a non-magnetic coating composition including a (meth)acryloyl group in a range of 11 mmol to 30 mmol, inclusive relative to 100 parts by weight of non-magnetic powder.
    Type: Application
    Filed: June 14, 2006
    Publication date: December 28, 2006
    Applicant: TDK CORPORATION
    Inventors: Tsutomu IDE, Katsuhiko YAMAZAKI, Tomoyuki KOTAKI
  • Magnetic recording medium
    Publication number: 20060210839
    Abstract: A magnetic recording medium which makes it possible to further increase the recording capacity while maintaining a required flexibility thereof. A magnetic tape has a lower non-magnetic layer and a magnetic layer formed on one surface of a base film in the mentioned order. The lower non-magnetic layer is formed of a non-magnetic coating material containing a non-magnetic powder, an electron beam curing binder, a dispersant having an amine group, and a thermosetting agent.
    Type: Application
    Filed: March 14, 2006
    Publication date: September 21, 2006
    Applicant: TDK Corporation
    Inventors: Tsutomu Ide, Katsuhiko Yamazaki, Tomoyuki Kotaki, Sadafumi Iijima
  • Magnetic recording medium and method for evaluating magnetic recording medium
    Publication number: 20060019128
    Abstract: A magnetic recording medium which has a thin film magnetic layer considerably excellent in surface smoothness and is excellent in electromagnetic conversion property is provided. A method for evaluating the surface smoothness of a magnetic recording medium is also provided.
    Type: Application
    Filed: July 22, 2004
    Publication date: January 26, 2006
    Applicant: TDK Corporation
    Inventors: Hiroyuki Tanaka, Takashi Handa, Tomoyuki Kotaki