Patents by Inventor Hiroki Okudera

Hiroki Okudera 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).

  • Thin silica film and silica-titania composite film, and method for preparing them
    Publication number: 20050175852
    Abstract: The present invention provides a method for preparing a high-density thin silica film with excellent translucency on a substrate having an arbitrary profile and surface characteristics, a method for controlling the surface roughness of the thin silica film, a method for preparing a silica-titania composite film, a composite film with photocatalytic action obtained by these methods, and a composite structure.
    Type: Application
    Filed: March 19, 2003
    Publication date: August 11, 2005
    Inventors: Hiroki Okudera, Toru Nonami
  • Powder having at least one layer and process for preparing the same
    Patent number: 6048574
    Abstract: A powder comprising a metal or metallic compound core having thereon at least one metal or metallic oxide layer having a uniform thickness of from 0.01 .mu.m to 20 .mu.m, wherein the metal of the metal or metallic oxide layer is different from the metal constituting the metal or metallic compound core and a process for preparing the same.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: April 11, 2000
    Assignee: Nittetsu Mining Co., Ltd.
    Inventors: Takafumi Atarashi, Hiroki Okudera
  • Powder having at least one layer and process for preparing the same
    Patent number: 5763085
    Abstract: A powder comprising a metal or metallic compound core having thereon at least one metal or metallic oxide layer having a uniform thickness of from 0.01 .mu.m to 20 .mu.m, wherein the metal of the metal or metallic oxide layer is different from the metal constituting the metal or metallic compound core and a process for preparing the same.
    Type: Grant
    Filed: September 25, 1995
    Date of Patent: June 9, 1998
    Assignee: Nittetsu Mining Co., Ltd.
    Inventors: Takafumi Atarashi, Hiroki Okudera