Patents by Inventor Shigekazu Takanohashi

Shigekazu Takanohashi 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).

  • Process for manufacturing prepregs for use as electric insulating material
    Patent number: 5633042
    Abstract: In a process for manufacturing a prepreg for use as an electrically insulating material, a main epoxy resin composition and a subsidiary resin composition containing a hardener which have been separately filtered and metered are quickly mixed into a mixture resin composition, a reinforcing member is coated with a uniformly thin film of the mixture resin composition by a die coater under specific temperature, average residence time and low shear conditions, the coated reinforcing member is heated in non-contact manner by an infrared ray heater to have the member impregnated with the resin composition of the film, the member is further heated in non-contact manner by a floating dryer to have the resin composition semi-hardened, and the member is unified through compaction rolls, whereby the prepreg in the form of a sheet-shaped fiber reinforced composite material is continuously manufactured.
    Type: Grant
    Filed: May 28, 1996
    Date of Patent: May 27, 1997
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Yoshihiko Nakamura, Masahiro Matsumura, Yasuo Fukuhara, Yukio Hatta, Masaharu Yamamoto, Makizi Miyao, Kiyohiro Nagao, Takayuki Fukuda, Hiroshi Toshima, Shigekazu Takanohashi, Akihiro Atsumi