Patents by Inventor Akeharu Tsuruta

Akeharu Tsuruta 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: 9732208
    Abstract: Provided are: a polyethylene laminate that exhibits excellent flexibility, barrier properties, and cleanliness (a low occurrence of fine particles), that does not deform even after sterilization treatment at 121° C., and that maintains high transparency; and a medical container using same. The medical container is configured by layering: an outer layer and an inner layer that comprise from 20 to 80 wt % of a high-density polyethylene (A) having specific properties, from 0 to 50 wt % of a linear low-density polyethylene (B1), and from 5 to 40 wt % of an ethylene-based polymer (C); and an intermediate layer that comprises from 10 to 40 wt % of the high-density polyethylene (A) and from 60 to 90 wt % of the linear low-density polyethylene (B1).
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: August 15, 2017
    Assignee: TOSOH CORPORATION
    Inventors: Akeharu Tsuruta, Shinpei Hama, Yoshiyuki Moro
  • Publication number: 20160237263
    Abstract: Provided are: a polyethylene laminate that exhibits excellent flexibility, barrier properties, and cleanliness (a low occurrence of fine particles), that does not deform even after sterilization treatment at 121° C., and that maintains high transparency; and a medical container using same. The medical container is configured by layering: an outer layer and an inner layer that comprise from 20 to 80 wt % of a high-density polyethylene (A) having specific properties, from 0 to 50 wt % of a linear low-density polyethylene (B1), and from 5 to 40 wt % of an ethylene-based polymer (C); and an intermediate layer that comprises from 10 to 40 wt % of the high-density polyethylene (A) and from 60 to 90 wt % of the linear low-density polyethylene (B1).
    Type: Application
    Filed: October 8, 2014
    Publication date: August 18, 2016
    Applicant: TOSOH CORPORATION
    Inventors: Akeharu TSURUTA, Shinpei HAMA, Yoshiyuki MORO
  • Patent number: 5811492
    Abstract: The present invention concerns polyphenylene sulfide resin compositions having excellent heat resistance, fire resistance, chemical resistance, impact resistance, mechanical strength, and moldability.
    Type: Grant
    Filed: September 28, 1992
    Date of Patent: September 22, 1998
    Assignee: General Electric Company
    Inventors: Katsuaki Mori, Akeharu Tsuruta
  • Patent number: 5043400
    Abstract: A method for producing articles of composite resin, wherein a liquid crystal polymer material in powder form is mixed with a second, melt-processable polymer material; the resulting mixture is kneaded at a temperature at which the second polymer material will melt but at which no deformation of the liquid crystal polymer will be caused so as to prepare a blend comprising the liquid crystal polymer powder uniformly dispersed in the matrix of the second polymer; and the blend is then subjected to a molding or shaping process at a temperature within the range at which the liquid crystal polymer is capable of forming liquid crystals.
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: August 27, 1991
    Assignee: Tosoh Corporation
    Inventors: Akeharu Tsuruta, Hisato Kawaguchi, Tomohiro Ishikawa, Yozo Kondo