Patents by Inventor Takehiko Kikuchi

Takehiko Kikuchi 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).

  • Method of processing and heat-treating NbC-added Fe-Mn-Si-based shape memory alloy
    Publication number: 20040007293
    Abstract: A NbC-added Fe—Mn—Si-based shape memory alloy is provided, showing a shape memory property even if a special treatment such as training is not performed.
    Type: Application
    Filed: March 20, 2003
    Publication date: January 15, 2004
    Inventors: Takehiko Kikuchi, Setsuo Kajiwara, Alberto Baruj, Kazuyuki Ogawa, Norio Shinya
  • Ti-Ni-based shape-memory alloy and method of manufacturing same
    Publication number: 20030136481
    Abstract: To remarkably improve shape-memory properties without the need for strictly controlling the composition, the present invention provides a Ti—Ni-based shape-memory alloy having a titanium content within a range of from 50 to 55 atomic %, which comprises an amorphous alloy heat-treated at a temperature of from 600 to 800 K, in which subnanometric precipitates generating coherent elastic strains are formed and distributed in the bcc parent phase(B2).
    Type: Application
    Filed: October 28, 2002
    Publication date: July 24, 2003
    Inventors: Setsuo Kajiwara, Takehiko Kikuchi, Kazuyuki Ogawa, Shuichi Miyazaki, Takeshi Matsunaga
  • Shape memory alloy
    Patent number: 6524406
    Abstract: A novel shape memory alloy of Fe—Mn—Si system containing at least Fe, Mn, and Si wherein the alloy contains niobium carbide in the structure and is improved in that a sufficiently satisfactory shape memory effect is provided without carrying out a special treatment termed training.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: February 25, 2003
    Assignee: National Research Institute for Metals
    Inventors: Takehiko Kikuchi, Setsuo Kajiwara, Daozhi Liu, Kazuyuki Ogawa, Norio Shinya
  • Shape memory alloy
    Publication number: 20010023723
    Abstract: A novel shape memory alloy of Fe—Mn—Si system containing at least Fe, Mn, and Si wherein the alloy contains niobium carbide in the structure and is improved in that a sufficiently satisfactory shape memory effect is provided without carrying out a special treatment termed training.
    Type: Application
    Filed: February 9, 2001
    Publication date: September 27, 2001
    Inventors: Takehiko Kikuchi, Setsuo Kajiwara, Daozhi Liu, Kazuyuki Ogawa, Norio Shinya
  • Ti-Ni-based shape-memory alloy and method of manufacturing same
    Publication number: 20010009169
    Abstract: To remarkably improve shape-memory properties without the need for strictly controlling the composition, the present invention provides a Ti—Ni-based shape-memory alloy having a titanium content within a range of from 50 to 55 atomic %, which comprises an amorphous alloy heat-treated at a temperature of from 600 to 800 K, in which subnanometric precipitates generating coherent elastic strains are formed and distributed in the bcc parent phase(B2).
    Type: Application
    Filed: March 15, 2001
    Publication date: July 26, 2001
    Inventors: Setsuo Kajiwara, Takehiko Kikuchi, Kazuyuki Ogawa, Shuichi Miyazaki, Takeshi Matsunaga
  • Ti-Ni-based shape-memory alloy and method of manufacturing same
    Patent number: 6001195
    Abstract: To remarkably improve shape memory properties without the need for strictly controlling the composition, the present invention provides a Ti--Ni-based shape-memory alloy having a titanium content within a range of from 50 to 66 atomic %, which comprises an amorphous alloy heat-treated at a temperature of from 600 to 800 K., in which sub-nanometeric precipitates generating coherent elastic strains are formed and distributed in the bcc parent phase(B2).
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: December 14, 1999
    Assignee: National Research Institute for Metals
    Inventors: Setsuo Kajiwara, Takehiko Kikuchi, Kazuyuki Ogawa, Shuichi Miyazaki, Takeshi Matsunaga