Patents by Inventor Kiyoto Nakai

Kiyoto Nakai 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 producing stretchable wadding
    Patent number: 4600605
    Abstract: A stretchable wadding with an apparent density of 0.005 to 0.05 g/cm.sup.3 formed from a web of crimp potential fibers bonded together and shrunk by drying is disclosed. In the preferred embodiment, crimp potential fibers are bonded to each other by spraying an adhesive onto both sides of the web, drying the adhesive, and shrinking the web by means of additional heat treatment to crimp the fibers.
    Type: Grant
    Filed: August 20, 1984
    Date of Patent: July 15, 1986
    Assignee: Japan Vilene Co., Ltd.
    Inventors: Kiyoto Nakai, Kanji Hosokawa
  • Method for producing shoulder pad material
    Patent number: 4332633
    Abstract: A method of producing a shoulder pad blank having a thick-walled portion and a thin-walled portion comprising cutting a sheet of shoulder pad stock material sinusoidally into two intermediate blanks each having a plurality of ridges spaced a predetermined distance from each other, and then cutting the ridges sinusoidally along their length.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: June 1, 1982
    Assignee: Carl Freudenberg
    Inventors: Katsuyoshi Yamauchi, Kiyoto Nakai