Patents by Inventor Kazumasa Hashimoto

Kazumasa Hashimoto 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: 20220192178
    Abstract: The present invention addresses the problem of providing, for instance, a mammalian cell preservation solution that can effectively suppress a decrease in cell viability occurring when mammalian cells are preserved in liquid or a decrease in self-renewal potential occurring when mammalian stem cells are preserved in liquid, and that is less likely to cause a harmful effect on the life of a mammal at the time of in vivo administration of mammalian cells to the mammal. This solution involves preserving a mammalian cell by using a mammalian cell preservation solution comprising trehalose or a derivative thereof, or a salt thereof and a hydrogen carbonate, such as sodium bicarbonate, as a pH modifier, and having a pH of from 6.5 to 8.5.
    Type: Application
    Filed: April 24, 2020
    Publication date: June 23, 2022
    Applicant: OTSUKA PHARMACEUTICAL FACTORY, INC.
    Inventors: Kazumasa HASHIMOTO, Masuhiro NISHIMURA, Yasutaka FUJITA, Akihiro TADA, Ryohei TSUBAKIYAMA, Kyoka ONODERA, Yoshiki NOMURA, Chikage SHIRAKAWA
  • Patent number: 11305101
    Abstract: An applicator for medical-use liquids includes a handle having a hollow cylindrical member, a container incorporated in the cylindrical member, and a cleaving member of the container; and an applying section having an attachment plate of an application pad (integrally) fixed to a lower end of the cylindrical member to be an inclined cross section and the application pad fixed to the attachment plate. The attachment plate has a bank section formed thick at a peripheral edge, a base bottom section formed as a recess in a center, an inclined outflow hole opened inclinedly with respect to the base bottom section near the base bottom section center such that the solution flows out toward an attachment plate distal end direction, and a weir provided in an arcuate or crescent shape. A flow of the solution flowed out from the inclined outflow hole is reversed to flow backward by the weir.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: April 19, 2022
    Assignee: OTSUKA PHARMACEUTICAL FACTORY, INC.
    Inventors: Mari Shiozaki, Kazumasa Hashimoto
  • Publication number: 20210161143
    Abstract: An antiseptic composition with a more extended applicable range by further enhancing the efficacy of olanexidine gluconate, which has been used as a highly safe dermal bactericidal disinfectant, and extending antibacterial spectrum. The antiseptic composition includes and has a more extended bactericidal spectrum than conventional disinfectants.
    Type: Application
    Filed: July 12, 2019
    Publication date: June 3, 2021
    Applicant: OTSUKA PHARMACEUTICAL FACTORY, INC.
    Inventors: Kaoru IMAI, Hisae NISHIOKA, Akihumi HAGI, Shinji ODA, Kazumasa HASHIMOTO, Motoya KIKUCHI
  • Publication number: 20180161561
    Abstract: An applicator for medical-use liquids includes a handle having a hollow cylindrical member, a container incorporated in the cylindrical member, and a cleaving member of the container; and an applying section having an attachment plate of an application pad (integrally) fixed to a lower end of the cylindrical member to be an inclined cross section and the application pad fixed to the attachment plate. The attachment plate has a bank section formed thick at a peripheral edge, a base bottom section formed as a recess in a center, an inclined outflow hole opened inclinedly with respect to the base bottom section near the base bottom section center such that the solution flows out toward an attachment plate distal end direction, and a weir provided in an arcuate or crescent shape. A flow of the solution flowed out from the inclined outflow hole is reversed to flow backward by the weir.
    Type: Application
    Filed: June 17, 2016
    Publication date: June 14, 2018
    Applicant: OTSUKA PHARMACEUTICAL FACTORY, INC.
    Inventors: Mari SHIOZAKI, Kazumasa HASHIMOTO
  • Patent number: 6300404
    Abstract: A curable polymer composition comprising (a) an oxyalkylene polymer having a silicon-containing group which has a hydroxyl or hydrolyzable group bonded to the silicon atom and can be crosslinked through a silanol condensation reaction, and (b) a paraffinic hydrocarbon, which composition provides a cured material having improved tack which remains on the surface of the cured material.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: October 9, 2001
    Assignee: Kanegafuchi Chemical Industry Co. Ltd.
    Inventors: Keiko Nishimura, Masaaki Azuma, Kazumasa Hashimoto, Fumio Kawakubo
  • Publication number: 20010003763
    Abstract: A curable polymer composition comprising (a) an oxyalkylene polymer having a silicon-containing group which has a hydroxyl or hydrolyzable group bonded to the silicon atom and can be crosslinked through a silanol condensation reaction, and (b) a paraffinic hydrocarbon, which composition provides a cured material having improved tack which remains on the surface of the cured material.
    Type: Application
    Filed: December 28, 1998
    Publication date: June 14, 2001
    Inventors: KEIKO NISHIMURA, MASAAKI AZUMA, KAZUMASA HASHIMOTO, FUMIO KAWAKUBO
  • Patent number: 5081224
    Abstract: This invention relates to processes for producing an olefin-terminated polyester. In one of the processes which comprises reacting an olefin-terminated diester compound with a lactone in the presence of a polymerization catalyst with transesterification ability, the lactone is in a limited amount added to the reaction system. In another process which comprises reacting an olefin-terminated diester compound, a lactone compound, a cyclic acid anhydride and an epoxy compound in the presence of a polymerization catalyst with transesterification ability, the lactone, cyclic acid anhydride and epoxy compound are each in a limited amount added to the reaction system. In accordance with this invention, olefin-terminated polyesters having high terminal modification rates can be synthesized.
    Type: Grant
    Filed: October 12, 1990
    Date of Patent: January 14, 1992
    Assignee: Kanegafuchi Chemical Industry Co., Ltd.
    Inventors: Hiroshi Ando, Kazumasa Hashimoto, Jun Hattori, Kazuya Yonezawa
  • Patent number: D804020
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: November 28, 2017
    Assignee: OTSUKA PHARMACEUTICAL FACTORY, INC.
    Inventors: Kazumasa Hashimoto, Mari Shiozaki
  • Patent number: D806238
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: December 26, 2017
    Assignee: OTSUKA PHARMACEUTICAL FACTORY, INC.
    Inventors: Kazumasa Hashimoto, Mari Shiozaki