Patents by Inventor Kenji UTASHIMA

Kenji UTASHIMA 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: 11643543
    Abstract: The present disclosure is directed to provide a resin composition which enables production of a molded product generating less formaldehyde and having excellent appearance and weather resistance, and also achieves suppression of mold deposit during molding. Presently disclosed is a polyacetal resin composition comprising 100 parts by mass of a polyacetal resin (A); and 0.1 to 10 parts by weight of an aluminum pigment (B), the aluminum pigment (B) containing 0.1 to 2.0 mass % of particles with a particle diameter of 1 ?m or less with respect to a total amount of the aluminum pigment (B), and a volume average particle size of the aluminum pigment (B) being 3 to 40 ?m.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: May 9, 2023
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Kenji Utashima, Tomohiro Kondou
  • Publication number: 20210380798
    Abstract: The present disclosure is directed to provide a resin composition which enables production of a molded product generating less formaldehyde and having excellent appearance and weather resistance, and also achieves suppression of mold deposit during molding. Presently disclosed is a polyacetal resin composition comprising 100 parts by mass of a polyacetal resin (A); and 0.1 to 10 parts by weight of an aluminum pigment (B), the aluminum pigment (B) containing 0.1 to 2.0 mass % of particles with a particle diameter of 1 ?m or less with respect to a total amount of the aluminum pigment (B), and a volume average particle size of the aluminum pigment (B) being 3 to 40 ?m.
    Type: Application
    Filed: June 3, 2021
    Publication date: December 9, 2021
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Kenji UTASHIMA, Tomohiro KONDOU
  • Patent number: 10774209
    Abstract: To provide a resin composition which can allow for production of a molded product causing less generation of formaldehyde and having an excellent metallic appearance, and furthermore which can allow for suppression of contamination in a mold and a molding machine during molding. A resin composition containing a polyacetal resin (A), an aluminum pigment (B), and a pearl-based pigment (C), in which the aluminum pigment (B) includes an aluminum particle, and the aluminum particle has a volume average particle size (D50) of 3 to 100 ?m and the content thereof is 0.01 to 15 parts by mass per 100 parts by mass of the polyacetal resin (A).
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: September 15, 2020
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Tomohiro Kondo, Kenji Utashima, Norihiko Furuya
  • Publication number: 20190203028
    Abstract: To provide a resin composition which can allow for production of a molded product causing less generation of formaldehyde and having an excellent metallic appearance, and furthermore which can allow for suppression of contamination in a mold and a molding machine during molding. A resin composition containing a polyacetal resin (A), an aluminum pigment (B), and a pearl-based pigment (C), in which the aluminum pigment (B) includes an aluminum particle, and the aluminum particle has a volume average particle size (D50) of 3 to 100 ?m and the content thereof is 0.01 to 15 parts by mass per 100 parts by mass of the polyacetal resin (A).
    Type: Application
    Filed: December 28, 2018
    Publication date: July 4, 2019
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Tomohiro KONDO, Kenji UTASHIMA, Norihiko FURUYA