Patents by Inventor Tsutomu Yonekura

Tsutomu Yonekura 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).

  • Recycled resin composition and method for producing the same
    Patent number: 6723759
    Abstract: Disclosed is a recycled resin composition having physical properties, a feeding property as well as a moldability which are by no means inferior as compared with the raw material resin composition, even when a ratio of recycled material in recycled resin composition used as molding material is increased. A recycled resin composition obtained by compounding a mixture containing (a) a raw material resin, (b) at least one kind of additives for resin, and (c) a pulverized material of a recovered molded article generated at the time of molding of a raw material resin composition comprising (a) said raw material resin and (b) said at least one kind of additives for resin and/or a recycled resin composition comprising (a) said raw material resin and (b) said at least one kind of additives for resin, is provided.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: April 20, 2004
    Assignee: Mitsubishi Engineering-Plastics Corporation
    Inventors: Kunihiro Takenaka, Tsutomu Yonekura, Toshiyuki Furuya, Shigeru Muramatsu
  • Recycled resin composition and method for producing the same
    Publication number: 20030009008
    Abstract: Disclosed is a recycled resin composition having physical properties, a feeding property as well as a moldability which are by no means inferior as compared with the raw material resin composition, even when a ratio of recycled material in recycled resin composition used as molding material is increased. A recycled resin composition obtained by compounding a mixture containing (a) a raw material resin, (b) at least one kind of additives for resin, and (c) a pulverized material of a recovered molded article generated at the time of molding of a raw material resin composition comprising (a) said raw material resin and (b) said at least one kind of additives for resin and/or a recycled resin composition comprising (a) said raw material resin and (b) said at least one kind of additives for resin, is provided.
    Type: Application
    Filed: May 8, 2000
    Publication date: January 9, 2003
    Inventors: Kunihiro Takenaka, Tsutomu Yonekura, Toshiyuki Furuya, Shigeru Muramatsu