Patents Assigned to Topics Co., Ltd.
  • Method of manufacturing an aromatic anti-bacterial agent containing hinokitiol
    Patent number: 6391347
    Abstract: The present invention provides a method of manufacturing an aromatic anti-bacterial agent containing hinokitiol, comprising the steps of extracting an aqueous solution containing at least hinokitiol from wood chips and reducing the aqueous solution extracted to produce the aromatic anti-bacterial agent.
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: May 21, 2002
    Assignee: Topics Co., Ltd.
    Inventor: Eisaku Tozaka
  • Building material
    Patent number: 6350304
    Abstract: The construction material comprises a construction base material and microcapsules inside of which liquid containing hinokitiol is incorporated and a plurality of which are to be mixed into the construction base material and the liquid in the microcapsules transudes into the construction base material because the microcapsules collapse due to at least change with time.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: February 26, 2002
    Assignee: Topics Co., Ltd.
    Inventor: Eisaku Tozaka
  • Method of manufacturing an aromatic anti-bacterial agent containing hinokitiol
    Patent number: 6183748
    Abstract: The present invention provides a method of manufacturing an aromatic anti-bacterial agent containing hinokitiol, comprising the steps of extracting an aqueous solution containing at least hinokitiol from wood chips and reducing the aqueous solution extracted to produce the aromatic anti-bacterial agent.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: February 6, 2001
    Assignee: Topics Co., Ltd.
    Inventor: Eisaku Tozaka