Patents by Inventor Takehiko Enomoto

Takehiko Enomoto 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).

  • Process for production of inorganic filler-containing polyolefin resin composition
    Patent number: 6953815
    Abstract: The present invention provides a highly economical process for production of an inorganic filler-containing polyolefin resin composition, and a production apparatus to be used for the process, whose process is characterized by carrying out a continuous series of steps from an olefin polymerization step up to a kneading/pelletizing step wherein the polyolefin resin obtained by the polymerization step is kneaded and pelletized with an inorganic filler and various additives.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: October 11, 2005
    Inventors: Takehiko Enomoto, Tamio Serita
  • Process and apparatus for production of inorganic filler-containing polyolefin resin composition
    Publication number: 20030045622
    Abstract: The present invention provides a highly economical process for production of an inorganic filler-containing polyolefin resin composition, and a production apparatus to be used for the process, whose process is characterized by carrying out a continuous series of steps from an olefin polymerization step up to a kneading/pelletizing step wherein the polyolefin resin obtained by the polymerization step is kneaded and pelletized with an inorganic filler and various additives.
    Type: Application
    Filed: April 4, 2002
    Publication date: March 6, 2003
    Applicant: Tamio Serita
    Inventors: Takehiko Enomoto, Tamio Serita
  • Polyolefin type resinous composition
    Patent number: 6255390
    Abstract: A polyolefin type resinous composition comprising 99 to 80% by weight of a propylene type block copolymer [A] and 1 to 20% by weight of an ethylene type or styrene type elastomer [B] which being superior in a transparency, a coloring property and a dimensional stability is provided. The said polyolefin composition comprises the said [A] consisting of a propylene homopolymer component and an ethylene propylene copolymer component having respective limiting viscosities: [&eegr;]PP, [&eegr;]RC, weight %: WPP, WRC, and melt flow rates: [MFR]PP, [MFR]RC, as well as the said [B] having a limiting viscosity: [&eegr;]R and a melt flow rate: [MFR]R, in such a way that the following relationships being established; ([&eegr;]RC/[&eegr;]PP)×(WPP/WRC)=0.2-3.0, ([MFR]RC/[MFR]PP)=0.3-4.0, [&eegr;]RC/[&eegr;]PP=0.7-1.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: July 3, 2001
    Assignee: Chisso Corporation
    Inventors: Takehiko Enomoto, Chikashi Okayama
  • Method for producing a composite molded article of thermoplastic resins
    Patent number: 6071454
    Abstract: A method for producing a composite molded article, includes providing a molded product of a thermoplastic elastomer; and then molding a thermoplastic rigid resin on the molded thermoplastic elastomer, to provide a composite molded article.
    Type: Grant
    Filed: January 21, 1998
    Date of Patent: June 6, 2000
    Assignees: Chisso Corporation, Shimizu Industry Co., Ltd., Denso Corporation
    Inventors: Tadashi Shimizu, Takehiko Enomoto, Masahiro Ito, Kenji Ogura