Patents by Inventor Kazumi Tani

Kazumi Tani 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).

  • Vessel for holding silicon and method of producing the same
    Publication number: 20060057317
    Abstract: The invention relates to a vessel for holding a silicon molten bath which can effectively prevent contamination of a silicon melt solution and have excellent sinterability, mechanical strength and productivity. The interior of the vessel is formed with a sprayed coating by spraying a silicon composite thermet consisting of metal silicon (MSi), silicon nitride (Si3N4) and silicon oxide (SiO2).
    Type: Application
    Filed: December 6, 2002
    Publication date: March 16, 2006
    Inventors: Koichi Shimizu, Frederic Caillaud, Kazumi Tani, Yoshifumi Kobayashi
  • Members for semiconductor manufacturing apparatus and method for producing the same
    Patent number: 6805968
    Abstract: A member for a semiconductor manufacturing apparatus comprises a steel substrate and a composite oxide film formed on a surface thereof and comprised of silicon oxide-aluminum oxide-chromium oxide and a sintering aid.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: October 19, 2004
    Assignee: Tocalo Co., Ltd.
    Inventors: Yukimasa Saito, Hiroshi Sakurai, Kazumi Tani, Kiyoshi Miyajima, Takema Teratani, Tatsuya Hamaguchi
  • Members for semiconductor manufacturing apparatus and method for producing the same
    Publication number: 20020192480
    Abstract: A member for a semiconductor manufacturing apparatus comprises a steel substrate and a composite oxide film formed on a surface thereof and comprised of silicon oxide-aluminum oxide-chromium oxide and a sintering aid.
    Type: Application
    Filed: April 25, 2002
    Publication date: December 19, 2002
    Applicant: Tokyo, Electron Co.
    Inventors: Yukimasa Saito, Hiroshi Sakurai, Kazumi Tani, Kiyoshi Miyajima, Takema Teratani, Tatsuya Hamaguchi
  • Composite spray coating having improved resistance to hot-dip galvanization
    Patent number: 5472793
    Abstract: A composite spray coating comprises an iron base material, a spray coating film applied thereon and a diffusion layer of aluminum or aluminum-zinc alloy, and is used for hot-dip galvanization.
    Type: Grant
    Filed: December 12, 1994
    Date of Patent: December 5, 1995
    Assignee: Tocalo Co., Ltd.
    Inventors: Yoshio Harada, Kazumi Tani, Yoshihumi Kobayashi
  • Composite spray coating having improved resistance to hot-dip galvanization
    Patent number: 5397650
    Abstract: A composite spray coating comprises an iron base material, a spray coating film applied thereon and a diffusion layer of aluminum or aluminum-zinc alloy, and is used for hot-dip galvanization.
    Type: Grant
    Filed: June 7, 1994
    Date of Patent: March 14, 1995
    Assignee: Tocalo Co., Ltd.
    Inventors: Yoshio Harada, Kazumi Tani, Yoshihumi Kobayashi
  • Spray-coated roll for continuous galvanization
    Patent number: 5316859
    Abstract: A roll used for continuous galvanization is provided at its surface with a spray-coated layer made from a cermet spraying material consisting essentially of WC-Co. The spray-coated layer consists of WC, at least one specified intermetallic compound and at least one of amorphous W-C-Co compound and free C, but contains no free W and free Co.
    Type: Grant
    Filed: September 9, 1993
    Date of Patent: May 31, 1994
    Assignee: Tocalo Co., Ltd.
    Inventors: Yoshio Harada, Kazumi Tani
  • Cermet sprayed coating roll with selected porosity and surface roughness
    Patent number: 4912835
    Abstract: A roll for use in rolling process is disclosed. The roll is provided with a sprayed coating of cermet in such a way that a porosity of the sprayed coating of for example a compound of tungsten carbide and cobalt and nickel-chromium cermet is selected less than 1.8% and a surface roughness Rmax of the sprayed coating is selected less than 3.0 .mu.m.
    Type: Grant
    Filed: September 27, 1988
    Date of Patent: April 3, 1990
    Assignee: Tocalo Co., Ltd.
    Inventors: Yoshio Harada, Kazumi Tani