Patents by Inventor Takeaki Inokuma

Takeaki Inokuma 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).

  • Polypropylene resin composition and method for coating molded products of the resin composition
    Patent number: 6075086
    Abstract: Herein provided are a polypropylene resin composition which comprises (A) a polypropylene, (B) an ethylene-propylene-diene terpolymeric rubber having a Mooney viscosity, ML.sub.1+4 (100.degree. C.
    Type: Grant
    Filed: June 25, 1993
    Date of Patent: June 13, 2000
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Katsuyuki Nitta, Keigo Suehiro, Yoichi Kawai, Katsumi Sekiguchi, Takeaki Inokuma, Yoshiyasu Kamiya
  • Polypropylene resin compositions, coating process for moldings thereof and its coated moldings
    Patent number: 5395893
    Abstract: A polypropylene resin composition which comprises (A) 100 parts by weight of polypropylene, (B) 20-50 parts by weight of at least one elastomer selected from an ethylenic elastomer, an hydrogenated styrene-butadiene copolymer and a hydrogenated styrene-isoprene block copolymer, (C) 0.3.about.20 parts by weight of polycarbonatediol having a skeleton of aliphatic carbonate with both terminals being a hydroxyl group and (D) 0.about.50 parts by weight of an inorganic filler. The resin composition can provide a molded article having a good adhesive property to a film applied thereon without pretreatment by a halogen-containing solvent.
    Type: Grant
    Filed: June 3, 1993
    Date of Patent: March 7, 1995
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Keigo Suehiro, Katsuyuki Nitta, Takeaki Inokuma, Chihiro Ogawa, Osamu Aoki, Kenji Hamabe, Atsushi Takeuchi
  • Polypropylene resin compositions, coating process for moldings thereof and its coated moldings
    Patent number: 5324771
    Abstract: A coated molded article having good adhesion to a coating film and resistance to gasohol as well as excellent appearance can be obtained by applying a primer coating to the surface of a molded article or irradiating the surface with plasma without applying any washing-treatment with a halogen atom-containing organic solvent and then applying a top coat onto the article, if the molded article is formed from a resin composition comprising (A)a polypropylene; (B)a specific ethylene-propylene-diene terpolymer rubber; (C) a specific ethylene-propylene copolymer rubber; and (D) a specific polyhydroxypolyolefin, the amounts of these components (A) to (D) satisfying the following relations:10.ltoreq.[(B)+(C)]/[(A)+(B)+(C)].ltoreq.60 (% by weight)1.ltoreq.(C)/[(B)+(C)].ltoreq.50 (% by weight)0.5.ltoreq.(D)/[(A)+(B)+(C)+(D)].ltoreq.
    Type: Grant
    Filed: April 28, 1992
    Date of Patent: June 28, 1994
    Assignees: Mitsui Toatsu Chemicals, Inc., Honda Giken Kogyo Kabushi Kaisha
    Inventors: Keigo Suehiro, Katsuyuki Nitta, Katsumi Sekiguchi, Takeaki Inokuma, Chihiro Ogawa, Osamu Aoki, Kenji Hamabe, Atsushi Takeuchi
  • Polypropylene resin composition and method for coating molded products of the resin composition
    Patent number: 5247007
    Abstract: Herein provided are a polypropylene resin composition which comprises (A) a polypropylene, (B) an ethylene-propylene-diene terpolymeric rubber having a Mooney viscosity, ML.sub.1+4 (100.degree. C.
    Type: Grant
    Filed: March 13, 1991
    Date of Patent: September 21, 1993
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Katsuyuki Nitta, Keigo Suehiro, Yoichi Kawai, Katsumi Sekiguchi, Takeaki Inokuma, Yoshiyasu Kamiya