Patents by Inventor Hiraku Yamazaki

Hiraku Yamazaki 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).

  • Calcium phosphate porous sintered body and production thereof
    Patent number: 6340648
    Abstract: A calcium phosphate porous sintered body which comprises spherical pores communicating with one another substantially throughout the body with a porosity of 55% or more and 90% or less, and has an average diameter of the inter-pore communicating parts of 50 &mgr;m or more, a pore diameter of 150 &mgr;m or more, and a three-point bending strength of 5 MPa or more, and a method for producing the same.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: January 22, 2002
    Assignees: Toshiba Ceramics Co., Ltd., National Institute for Research in Inorganic Materials-Science and Technology Agency, Toshiba Denko Co., Ltd.
    Inventors: Kohichi Imura, Hideo Uemoto, Akimichi Hojo, Junzo Tanaka, Masanori Kikuchi, Yasushi Suetsugu, Hiraku Yamazaki, Masami Kinoshita, Nobuaki Minowa
  • Method of manufacturing hydroxyapatite and aqueous solution of biocompounds at the same time
    Patent number: 6149796
    Abstract: A method of manufacturing an aqueous solution of biocompounds containing peptide as a major component and a hydroxyapatite containing minerals and being useful an inorganic or organic composite material from tissue in an electrolytic cell by performing the electrolysis of an aqueous solution of the tissue and by taking advantage of an electrode reaction using suitable electrodes. In this case, a DC current is passed between the electrodes in the aqueous solution, thereby dissolving and crystallizing the tissue components. After unreacted matters are removed, the resultant mixed solution is separated into solid matters and a liquid. The aqueous solution of biocompounds is obtained from the filtrate, and the hydroxyapatite is obtained from the recrystallized solid matters.
    Type: Grant
    Filed: April 21, 1999
    Date of Patent: November 21, 2000
    Assignee: Hiraki Yamazaki
    Inventors: Hiraku Yamazaki, Atsushi Yamazaki, Yoshiko Yamazaki, Yutaka Yamazaki
  • Silicon carbide coated carbon composite material and method for making same
    Patent number: 5462800
    Abstract: A silicon carbide coated carbon matrix/carbon fiber composite material is provided. The carbon composite base material, coated with silicon carbide, comprises a siliconized layer and a non-siliconized layer. The siliconized layer comprises silicon carbide matrix and non-siliconized carbon fibers. The siliconized layer also has a non-planar interface with a series of elongated protrusions penetrating into the surface the of non-siliconized layer. A gas-permeable intermediate coating formed on the carbon composite material can help produce such a siliconized layer.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: October 31, 1995
    Assignee: Toshiba Ceramics Co.
    Inventors: Hiraku Yamazaki, Teruo Sugai, Shigeo Kato, Haruo Tazoe, Shiroh Hotate, Iwao Goto
  • Mirror for SOR
    Patent number: 5448418
    Abstract: A mirror for SOR includes a base (1) made of a heat resistant ceramic material having a surface, a first SiC coating (2, 3) formed on the surface of the base (1), which has a first smoothed surface, and a second SiC coating (4, 5) formed on the first smoothed surface of the first SiC coating (2, 3), which has a second smoothed surface. A third SiC coating can be formed on the smoothed surface of the second SiC coating (4).
    Type: Grant
    Filed: March 10, 1993
    Date of Patent: September 5, 1995
    Assignee: Toshiba Ceramics Co., Ltd.
    Inventors: Shirou Hotate, Hiraku Yamazaki, Teruo Sugai, Shigeo Kato, Haruo Tazoe, Hiroaki Koike, Takeshi Inaba, Eiichi Toya, Shinichi Inoue