Patents by Inventor Kiminori Atsumi

Kiminori Atsumi 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).

  • Process for producing an antibacterial ceramic material
    Patent number: 5151122
    Abstract: An antibacterial ceramic material wherein at least one ceramic selected from the group consisting of hydroxyapatite, calcium phosphate, calcium hydrogen phosphate, calcium carbonate, calcium silicate and zeolite is made to absorb and tightly retain at least one liquified metal salt selected from the group consisting of salts of silver, copper and zinc, after which heat firing at elevated temperatures is performed.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: September 29, 1992
    Assignee: Kabushiki Kaisha Sangi
    Inventors: Kiminori Atsumi, Tomoki Saito, Masaaki Komori
  • Antimicrobial hydroxyapatite powders and methods for preparing them
    Patent number: 5009898
    Abstract: Antimicrobial hydroxyapatite powders containing hydroxyapatite powder and metal ions selected from silver, copper and zinc ions or one or more antimicrobial agents selected from hinokitiol, tannin, lysozyme, protamine and sorbic acid.
    Type: Grant
    Filed: September 19, 1989
    Date of Patent: April 23, 1991
    Assignee: Kabushiki Kaisha Sangi
    Inventors: Shuji Sakuma, Kiminori Atsumi, Keijiro Fujita
  • Osteofillers of hydroxy apatite
    Patent number: 4960426
    Abstract: An osteofiller is characterized by using columnar sintered hydroxy-apatite having at least one capillary tube passed therethrough in the vertical direction.
    Type: Grant
    Filed: June 5, 1989
    Date of Patent: October 2, 1990
    Assignee: Denatal Kagaku Kabushiki Kaisha
    Inventor: Kiminori Atsumi
  • Compositions for preventing tooth decay
    Patent number: 4923683
    Abstract: A tooth-decay preventing composition containing hydroxy-apatite and a fluoride, wherein at least one of the hydroxy-apatite and/or fluoride is microencapsulated or coated.
    Type: Grant
    Filed: September 25, 1989
    Date of Patent: May 8, 1990
    Assignee: Kabushiki Kaisha Sangi
    Inventors: Shuji Sakuma, Kiminori Atsumi