Patents by Inventor Yoshihisa Ieguchi

Yoshihisa Ieguchi 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).

  • Patent number: 4936909
    Abstract: Proposed herein is a process for producing fine particulate metals comprising reducing fine powder of at least one iron compound selected from the group consisting of iron oxide, iron sulfate and iron chloride with a reducing gas to provide fine particulate iron having a particle size of from 0.1 to 3.0 .mu.m and a specific surface area of from 2.0 to 4.0 m.sup.2 /g, and bringing the fine particulate iron in contact with an aqueous solution containing ions of at least one metal selected from the group consisting of nickel, tin, lead, cobalt, copper and silver thereby forming fine powder of at least one of above-mentioned metals having a particle size of from 0.1 to 3.0 .mu.m in the aqueous solution.
    Type: Grant
    Filed: July 13, 1989
    Date of Patent: June 26, 1990
    Assignee: Nisshin Steel Co., Ltd.
    Inventors: Eiki Takeshima, Masaki Sato, Yoshihisa Ieguchi, Akira Sakakura