Patents by Inventor Kenichiro Okamura

Kenichiro Okamura 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: 11535735
    Abstract: The purpose of the present invention is to provide a propylene-based block copolymer, the deposition thereof on the inner wall of the polymerization vessel having been sufficiently inhibited. The propylene-based block copolymer of the present invention has a flowability evaluation value of 40% or less, the value being calculated with the following equation wherein X (sec) is the number of seconds over which 100 g of the copolymer having ordinary temperature falls from a stainless-steel funnel having an inner diameter of 11.9 mm and Y (sec) is the number of seconds over which 100 g of the copolymer which has been held at 80° C. for 24 hours under a load of 10 kg falls from the funnel having an inner diameter of 11.9 mm. Flowability evaluation value (%)={(Y/X)?1}×100.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: December 27, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Atsushi Sakuma, Kazutaka Tsuru, Kenichiro Okamura
  • Publication number: 20200399454
    Abstract: The purpose of the present invention is to provide a propylene-based block copolymer, the deposition thereof on the inner wall of the polymerization vessel having been sufficiently inhibited. The propylene-based block copolymer of the present invention has a flowability evaluation value of 40% or less, the value being calculated with the following equation wherein X (sec) is the number of seconds over which 100 g of the copolymer having ordinary temperature falls from a stainless-steel funnel having an inner diameter of 11.9 mm and Y (sec) is the number of seconds over which 100 g of the copolymer which has been held at 80° C. for 24 hours under a load of 10 kg falls from the funnel having an inner diameter of 11.9 mm. Flowability evaluation value (%)={(Y/X)?1}×100.
    Type: Application
    Filed: March 7, 2019
    Publication date: December 24, 2020
    Inventors: Atsushi SAKUMA, Kazutaka TSURU, Kenichiro OKAMURA
  • Patent number: 5942266
    Abstract: The invention provides edible pearly capsules containing a large amount of an oleaginous substance as the core substance. The above capsules can be provided by the method which comprises contacting liquid drops (a) of a composition comprising an aqueous solution of a water-soluble macromolecular substance at least a portion of which is marmelo mucilage (a.sub.1), an oleaginous substance (a.sub.2), e.g. animal or vegetable oil, a water-soluble polyvalent metal salt (a.sub.3), e.g. calcium chloride, and sodium chloride (a.sub.4) with an aqueous solution of a water-soluble salt of alginic acid (b) to thereby form a water-insoluble film of alginic acid salt on the outer surface of said liquid drops (a).
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: August 24, 1999
    Assignee: Sansho Kaken Kabushiki Kaisha
    Inventors: Kenichiro Okamura, Shunpei Ito
  • Patent number: 4200549
    Abstract: An adhesive composition comprising 100 parts by weight of at least one .alpha.-cyanoacrylate monomer and 5 to 300 parts by weight of trichlorotrifluoroethane.
    Type: Grant
    Filed: May 23, 1978
    Date of Patent: April 29, 1980
    Assignee: Alpha Techno Company
    Inventors: Kenichiro Okamura, Yasuo Nakamuru