Patents by Inventor Katsumi Niki

Katsumi Niki 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).

  • Chemically modified electrodes and their uses
    Patent number: 4619754
    Abstract: An electrically conducting solid electrode having a surface on which a nitrogen-containing electron mediator and a strong acidic cation exchange resin containing aromatic groups are immobilized is disclosed along with methods for producing this electrode and uses therefor.
    Type: Grant
    Filed: March 8, 1983
    Date of Patent: October 28, 1986
    Assignee: Ajinomoto Company Incorporated
    Inventors: Katsumi Niki, Katsuyoshi Kobayashi, Hiroo Inoguchi, Tatsuhiko Yagi
  • Modified electrode
    Patent number: 4595479
    Abstract: A chemically modified electrode comprising a pyrolytic graphite surface, wherein the basal plane of graphite is exposed on said surface and a redox/adsorption electron mediator is irreversibly absorped directly onto the basal plane of graphite on said surface, is disclosed along with methods of using this electrode.
    Type: Grant
    Filed: October 19, 1983
    Date of Patent: June 17, 1986
    Assignee: Ajinomoto Co., Inc.
    Inventors: Yasuhiro Kimura, Katsumi Niki
  • Heme protein immobilized electrode and its use
    Patent number: 4541908
    Abstract: An electrical conducting solid electrode on the surface of which cytochrome c.sub.3 is immobilized in an amount ranging from 20%-100% of the monolayer coverage, said electrode thereby provided with the electrocatalytic capability of the direct four-electron reduction of dioxygen to water, and its uses.
    Type: Grant
    Filed: August 31, 1984
    Date of Patent: September 17, 1985
    Assignee: Ajinomoto Company Incorporated
    Inventors: Katsumi Niki, Hiroo Inokuchi, Tatsuhiko Yagi, Asao Nakamura