Patents by Inventor Kazushi Sumimoto

Kazushi Sumimoto 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).

  • Patent number: 5725705
    Abstract: A dust-control mat having excellent dimensional stability during the processing, good pile-erecting property and excellent pattern expression, and a method of producing the same. The dust-control mat having excellent dimensional stability comprises a base in which a base fabric is composed of a woven fabric or a nonwoven fabric and a floss-like nonwoven fiber layer coupled to the base, wherein the floss-like nonwoven fiber layer contains low-melting fibers and is thermally fixed after pile yarns are implanted thereon. The invention further provides a method of producing the dust-control mat.
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: March 10, 1998
    Assignee: Duskin Co., Ltd.
    Inventors: Yuji Nagahama, Kazushi Sumimoto, Junji Taguchi
  • Patent number: 5680826
    Abstract: A shoe wiping mat with color pattern for rent, having a novel taffeted texture and vivid color pattern, excellent softness, dust-adsorbing property and dust-holding property, preventing undulation phenomenon on the mat surface even after repetitive use, and having excellent fitness to floor surfaces, resulting from the tilt of the stitches, zig-zag shape stitches and boundary lines, pitch of the stitches and position thereof.
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: October 28, 1997
    Assignee: Duskin Co., Ltd.
    Inventors: Yuji Nagahama, Kazushi Sumimoto, Junji Taguchi
  • Patent number: 5198278
    Abstract: In a mat composed of a base cloth, a pile tufted thereto, and a rubber backing applied to the non-pile surface of the base cloth, a cotton-like layer composed of a woven cloth of a polyester textured yarn non-adherent to the rubber and a filament or staple which layer is needle-punched is used. In this mat, weakly adherent regions at which the woven cloth and the rubber portion contact each other and strong adhesive regions at which the cotton-like layer and the rubber portion content each other are formed in dots in a large distribution. Waving deformation during repeated use is prevented.
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: March 30, 1993
    Assignee: Duskin Co., Ltd.
    Inventors: Kazushi Sumimoto, Yuji Nagahama