Patents by Inventor Toshihiko Taniuchi

Toshihiko Taniuchi 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).

  • Publication number: 20050016636
    Abstract: The present invention provides a stainless steel which is suitable for use in the food manufacturing plant, particularly a soy sauce manufacturing plant. A stainless steel to be used in the environment which contains organic acid and common salt comprising, C; 0.05 wt % or less, Si; 1.00 wt % or less, Mn; 1.00 wt % or less, P; 0.040 wt % or less, S; 0.03 wt % or less, Ni; 40.0 wt % or less, 16.0 wt %?Cr?26.0 wt %, 2.0 wt %?Mo?8.0 wt %, 0.05 wt %?Al?0.100 wt %, 0.10 wt %?N?0.30 wt %, Mg: 0.005 wt % or less, Ca; 0.0010 wt % or less and balance consisting of Fe and inevitable impurities, and satisfying equation (1), Cr+3.3Mo+20N?38 ??(1) wherein, Cr, Mo and N show the content of each ingredients by weight %.
    Type: Application
    Filed: May 10, 2002
    Publication date: January 27, 2005
    Inventors: Yutaka Kobayashi, Toshihiko Taniuchi, Yoshikuni Nakao
  • Patent number: 5614149
    Abstract: Coins, particularly game coins, which are soft and excellent in workability before the coining work and high in hardness and exhibit weak magnetism after the coining work are provided. The stainless steel for coins comprises C: not more than 0.03 wt %, Si: 0.1-1.0 wt %, Mn: 0.1-4 wt %, Ni: 5-15 wt %, Cr: 12-20 wt %, N: not more than 0.03 wt %, O: not more than 50 ppm, and, if necessary, at least one of Cu: 0.5-3.0 wt % and Mo: 0.1-2.0 wt % and austenite stabilization index M value of 20.0-23.0 and ferrite formation ratio F value of not more than 6. A method of producing coins of stainless steel is also provided which comprises subjecting a starting material of such a stainless steel to a cold rolling of 50%, heat-treating at C. and subjecting to coining work of 15-25%.
    Type: Grant
    Filed: March 3, 1995
    Date of Patent: March 25, 1997
    Assignees: Nippon Yakin Kogyo Co., Ltd., Asahi Seiko Co., Ltd.
    Inventors: Hiroshi Abe, Toshihiko Taniuchi, Masaomi Tsuda, Yoshito Fujiwara
  • Patent number: 5325911
    Abstract: A continuously cast slab of Fe-Ni series alloy comprising 30-50 wt % of Ni or further 0.001-0.03 wt % of B and the balance of Fe is controlled to an eqiaxial crystal ratio of 20% or 30% in accordance with the existence or nonexistence of B content in the continuous casting and, if necessary, subjected to an electromagnetic stirring treatment or the like for controlling the eqiaxial crystal ratio and then heated at a temperature of not lower than C., C. and C. to economically produce Fe-Ni series alloys having improved effect for restraining streaks during etching.
    Type: Grant
    Filed: April 17, 1991
    Date of Patent: July 5, 1994
    Assignee: Nippon Yakin Kogyo Co., Ltd.
    Inventors: Masaomi Tsuda, Toshihiko Taniuchi
  • Patent number: 5002619
    Abstract: An ingot of Fe-Ni series alloy comprising 30-80 wt % of NI or further 0.001-0.03 wt % and B and the balance of Fe is upset at a forging ratio of at least 1/1.2U, hot forged at a total sectional reduction ratio of at least 30% to form a slab, from which fine crystal grains are formed at final heat treating stage, whereby Fe-Ni series alloys for electronic and electromagnetic materials are economically produced without generating streaks at the etching.
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: March 26, 1991
    Assignee: Nippon Yakin Kogyo Co., Ltd.
    Inventors: Masaomi Tsuda, Toshihiko Taniuchi
  • Patent number: 4808371
    Abstract: Particularly important properties required for exterior protective members for sheathing heaters are resistance to oxidation, anti-stress corrosion properties and weldability. An austenitic stainless steel for the exterior protective members has been developed from the findings that, firstly, the resistance to oxidation can be remarkably improved by increasing the Cr content together with a combined addition of Al and rare earth metals. Secondly, a small amount of Co addition is effective to enhance alloy ability to withstand stress corrosion cracking in the environment to which sheathing heaters are subjected, and that the weldability of such members can be made superior by maintaining the content of Si and Ti within a specified region.
    Type: Grant
    Filed: August 10, 1987
    Date of Patent: February 28, 1989
    Assignee: Nippon Yakin Kogyo Co., Ltd.
    Inventors: Toshihiko Taniuchi, Rikio Nemoto, Yoshito Fujiwara