Patents by Inventor Tetsuo Matsunaga

Tetsuo Matsunaga 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 and apparatus for drying beltlike article, and induction heater having rotary drums
    Patent number: 5280151
    Abstract: In drying a beltlike article such as a slide fastener tape by high-frequency induction heating, the tape is wound on the outer circumferential surface of a rotary drum heated from inside while rotating. An induction heating coil is mounted on the outer circumferential surface of a stationary drum, as an inner drum, with a gap with the inner circumferential surface of the rotary drum. The rotary drum is supported at one end by a rotary shaft via an adiabatic material. The stationary inner drum is made of a metal plate having a high heat conductivity for facilitating heat radiation of the heating coil, while the rotary drum is made of a cladding plate including iron and copper plates in combination.
    Type: Grant
    Filed: March 8, 1991
    Date of Patent: January 18, 1994
    Assignees: Yoshida Kogyo K.K., Fuji Electric Co. Ltd.
    Inventors: Tetsuo Matsunaga, Shunji Miyamoto, Tadahiro Takamatsu, Akira Hasegawa