Patents by Inventor Kuniichi Shinomiya

Kuniichi Shinomiya 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
    Patent number: 4579780
    Abstract: A magnetic recording medium is provided which is assured of smoothly and stably running properties and is free of the so-called "squeal" phenomenon, especially in an environment of high temperature and high humidity. A highly viscous silicone oil having a viscosity of 100,000 or more is incorporated as a lubricating agent in the magnetic coating of the magnetic recording medium in an amount of 0.5 to 2% by weight based on binder. Such silicone oil is a dimethyl silicone oil having the following rational formula: ##STR1## where n is a number which determines a viscosity thereof.
    Type: Grant
    Filed: August 10, 1982
    Date of Patent: April 1, 1986
    Assignee: TDK Electronics Co., Ltd.
    Inventors: Kuniichi Shinomiya, Masahiro Takizawa, Takehisa Ohkawa