Patents by Inventor Motomu Takamura

Motomu Takamura 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: 6268063
    Abstract: A propylene resin composition featuring good flexibility and transparency without producing sticky feeling, and comprising a polypropylene component and a copolymer component of propylene and ethylene, wherein (I) the amount of the component (hereinafter referred to as medium- to low-temperature eluting component) that elutes out at temperatures of up to 90° C. by the temperature rising elution fractionation method by using an o-dichlorobenzene solvent is from 50 to 99% by weight of the whole amount, the amount of the component (hereinafter referred to as high-temperature eluting component) that elutes out at temperatures of not lower than 90° C. is from 50 to 1% by weight of the whole amount, and the amount of the component (hereinafter referred to as low-temperature eluting component) eluting out up to a temperature of 0° C. is not larger than 10% by weight of the whole amount, and (II) the content of the ethylene units in the component eluting up to the temperature of 90° C.
    Type: Grant
    Filed: August 25, 1999
    Date of Patent: July 31, 2001
    Assignee: Tokuyama Corporation
    Inventors: Manabu Kaminaka, Motomu Takamura, Hitoshi Matsuoka