Patents by Inventor Tsuneo Nagata

Tsuneo Nagata 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 of manufacturing hot formed object, and device and method for continous high-frequency heating
    Publication number: 20050098926
    Abstract: Raw materials are portioned in a plurality of molds, which are continuously moved and transferred to a heating area by a conveyer. The heating area is divided into a plurality of sub-areas, each of which has power source means and power feeding means. The raw materials are heated and molded by applying high frequency to the molds from the power feeding means. Even if the heating apparatus is large, it is possible to restrain or prevent concentration of high-frequency energy since the heating area is divided into sub-areas.
    Type: Application
    Filed: May 7, 2002
    Publication date: May 12, 2005
    Inventors: Tomoya Tamura, Naoyuki Okuda, Yoshiyuki Otani, Tsutomu Kosaka, Yasuo Shinomiya, Toshitaka Haruta, Taizo Karasawa, Yoshio Akesaka, Masato Yanagitani, Tsuneo Nagata, Yasuji Yamamoto
  • Method and apparatus for producing a unified laminated body by dielectric heating and method for dielectrically preheating a laminate structure for the unified laminated body
    Patent number: 6359273
    Abstract: A method of preheating a polymer plate by dielectric heating by applying a radio frequency voltage to a laminate in the direction of its lamination through electrodes; a method of producing a laminate, comprising dielectric heating a polymer plate by applying a radio frequency voltage to a laminate in the direction of its lamination through electrodes in a state where the laminate is housed in an annular container encompassing the surfaces of the laminates, and pressing the laminate in the direction of its lamination at least after completion of the application of the radio frequency voltage; and an apparatus for producing the laminate.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: March 19, 2002
    Assignee: Nitta Corporation
    Inventors: Kiyoshi Ogawa, Takahiko Yoshida, Michiaki Inui, Mikiya Shimizu, Yasuji Yamamoto, Yuichi Sugizaki, Tsuneo Nagata