Patents by Inventor Shunichi YANO

Shunichi YANO 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: 11623275
    Abstract: A method for producing a sintered member, including the steps of: preparing a raw powder; press-forming the raw powder to produce a green compact; and sintering the green compact by high-frequency induction heating, wherein a temperature of the green compact in the sintering step is controlled to satisfy all the following conditions (I) to (III): (I) the temperature is increased without maintaining the temperature in a temperature range equal to or higher than an A1 point of an Fe—C phase diagram and lower than the sintering temperature of the green compact, (II) a heating rate is set to 12° C./s or more in a temperature range of the A1 point to an A3 point of the Fe—C phase diagram, and (III) a heating rate is set to 4° C./s or more in a temperature range of the A3 point of the Fe—C phase diagram to the sintering temperature of the green compact.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: April 11, 2023
    Assignee: SUMITOMO ELECTRIC SINTERED ALLOY, LTD.
    Inventors: Keiichi Uemoto, Tetsuya Hayashi, Tatsushi Yamamoto, Shunichi Yano
  • Publication number: 20210129223
    Abstract: A method for producing a sintered member, including the steps of: preparing a raw powder; press-forming the raw powder to produce a green compact; and sintering the green compact by high-frequency induction heating, wherein temperature of the green compact in the sintering step is controlled to satisfy all the following conditions (I) to (III): (I) the temperature is increased without maintaining the temperature in a temperature range equal to or higher than an A1 point of an Fe—C phase diagram and lower than the sintering temperature of the green compact, (II) a heating rate is set to 12° C./s or more in a temperature range of the Ai point to an A3 point of the Fe—C phase diagram, and (III) a heating rate is set to 4° C./s or more in a temperature range of the A3 point of the Fe—C phase diagram to the sintering temperature of the green compact.
    Type: Application
    Filed: May 17, 2019
    Publication date: May 6, 2021
    Inventors: Keiichi UEMOTO, Tetsuya HAYASHI, Tatsushi YAMAMOTO, Shunichi YANO