Patents by Inventor Yukiko Hachiya

Yukiko Hachiya 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).

  • Publication number: 20210316479
    Abstract: The present invention realizes the production of a molded composite article that has superior appearance, that is capable of preventing or reducing a deterioration of mechanical properties, and that is superior in productivity. A sheet of a unidirectional material is fixed to a specific part of a lower mold, a force in an out-of-plane direction is applied to a specific part of a zone of the sheet which zone is to undergo shear deformation or compressive deformation, and the sheet is preformed, thereby obtaining a preform. Heat and pressure are applied to the preform in a mold, thereby obtaining a molded composite article having a desired shape.
    Type: Application
    Filed: June 24, 2021
    Publication date: October 14, 2021
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Masahiro ICHINO, Yuma FURUHASHI, Yukiko HACHIYA
  • Patent number: 9799420
    Abstract: When measuring the molecular mass distribution of conductive aniline polymer of formula (1) by GPC and converting its retention time into molecular mass (M) in terms of sodium polystyrene sulfonate, for the molecular mass (M), the area ratio (X/Y) of the area (X) of a region of 15,000 Da or more to the area (Y) of a region of less than 15,000 Da is 1.20 or more. A method for producing such a polymer includes: polymerization step (Z1) where specific aniline derivative (A) is polymerized in a solution containing basic compound (B), solvent (C), and oxidizing agent (D) at a liquid temperature lower than 25° C.; or polymerization step (Z2) where specific aniline derivative (A) and oxidizing agent (D) are added to and polymerized in a solution of a conductive aniline polymer (P-1) with a unit of formula (1) dissolved or dispersed in a solvent (C).
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: October 24, 2017
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Kohei Yamada, Yasushi Horiuchi, Yukiko Hachiya, Masashi Uzawa, Takahiro Sakai, Tamae Takagi
  • Publication number: 20150179295
    Abstract: When measuring the molecular mass distribution of conductive aniline polymer of formula (1) by GPC and converting its retention time into molecular mass (M) in terms of sodium polystyrene sulfonate, for the molecular mass (M), the area ratio (X/Y) of the area (X) of a region of 15,000 Da or more to the area (Y) of a region of less than 15,000 Da is 1.20 or more. A method for producing such a polymer includes: polymerization step (Z1) where specific aniline derivative (A) is polymerized in a solution containing basic compound (B), solvent (C), and oxidizing agent (D) at a liquid temperature lower than 25° C.; or polymerization step (Z2) where specific aniline derivative (A) and oxidizing agent (D) are added to and polymerized in a solution of a conductive aniline polymer (P-1) with a unit of formula (1) dissolved or dispersed in a solvent (C).
    Type: Application
    Filed: March 4, 2015
    Publication date: June 25, 2015
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Kohei YAMADA, Yasushi HORIUCHI, Yukiko HACHIYA, Masashi UZAWA, Takahiro SAKAI, Tamae TAKAGI
  • Publication number: 20130209667
    Abstract: When measuring the molecular mass distribution of conductive aniline polymer of formula (1) by GPC and converting its retention time into molecular mass (M) in terms of sodium polystyrene sulfonate, for the molecular mass (M), the area ratio (X/Y) of the area (X) of a region of 15,000 Da or more to the area (Y) of a region of less than 15,000 Da is 1.20 or more. A method for producing such a polymer includes: polymerization step (Z1) where specific aniline derivative (A) is polymerized in a solution containing basic compound (B), solvent (C), and oxidizing agent (D) at a liquid temperature lower than 25° C.; or polymerization step (Z2) where specific aniline derivative (A) and oxidizing agent (D) are added to and polymerized in a solution of a conductive aniline polymer (P-1) with a unit of formula (1) dissolved or dispersed in a solvent (C).
    Type: Application
    Filed: October 25, 2011
    Publication date: August 15, 2013
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Kohei Yamada, Yasushi Horiuchi, Yukiko Hachiya, Masashi Uzawa, Takahiro Sakai, Tamae Takagi