Patents Assigned to Surfcera Co., Ltd.
  • Anti-bacteria agent made from shell, and methods for purifying and desalinating water and for washing agricultural products with use thereof
    Patent number: 6863829
    Abstract: For providing an anti-bacteria which is made from a natural material, therefore harmless if it is absorbed in the human body, can be produced in mass production with low cost, and shows a high anti-bacteria effect, the anti-bacteria agent is obtained by heating a shell in an atmosphere of inactive gas and burning the shell under the temperature which finally reaches 700° C.-2,500° C.
    Type: Grant
    Filed: August 12, 2002
    Date of Patent: March 8, 2005
    Assignee: Surfcera Co., Ltd.
    Inventors: Keiko Sasaki, Manabu Sasaki, Yukio Funai, Kasumi Koyama
  • Anti-bacteria agent made from shell, and methods for purifying and desalinating water and for washing agricultural products with use thereof
    Patent number: 6488978
    Abstract: For providing an anti-bacteria which is made from a natural material, therefore harmless if it is absorbed in the human body, can be produced in mass production with low cost, and shows a high anti-bacteria effect, the anti-bacteria agent is obtained by heating a shell in an atmosphere of inactive gas and burning the shell under the temperature which finally reaches 700° C.-2,500° C.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: December 3, 2002
    Assignee: Surfcera Co., Ltd.
    Inventors: Keiko Sasaki, Manabu Sasaki, Yukio Funai, Kasumi Koyama
  • Anti-bacteria agent made from shell, and methods for purifying and desalinating water and for washing agricultural products with use thereof
    Patent number: 6365193
    Abstract: For providing an anti-bacteria agent which is made from a natural material, therefore harmless if it is absorbed in the human body, produced in mass production with low cost, and showing a high anti-bacterial effect, the anti-bacteria agent is obtained by heating a shell in an atmosphere of inactive gas and burning the shell under the temperature which finally reaches 700° C.-2,500° C.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: April 2, 2002
    Assignee: Surfcera Co., Ltd.
    Inventors: Keiko Sasaki, Manabu Sasaki, Yukio Funai, Kasumi Koyama