Patents by Inventor Kosuke Tomiyama

Kosuke Tomiyama 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).

  • Fe-based alloy for melting-solidification shaping and metal powder
    Patent number: 11946124
    Abstract: An Fe-based alloy for melting-solidification shaping including, in mass %: 18.0?Co<25.0; 12.0?Mo+W/2?20.0; 0.2?Mn?5.0; 0.5?Ni?10.0; and 0?Si?1.0, with the balance being Fe and unavoidable impurities, and satisfying the following expressions (1) and (2) when [M] represents a content of an element M expressed in mass % basis, 58?[Co]+3([Mo]+[W]/2)?95 (1), A/B?1.6 (2) where A=[Co]+[Ni]+3[Mn], and B=[Mo]+[W]/2+[Si], in which when the Fe-based alloy includes no Mo, the expressions (1) and (2) are calculated using [Mo]=0, when the Fe-based alloy includes no Si, the expression (2) is calculated using [Si]=0, and when the Fe-based alloy includes no W, the expressions (1) and (2) are calculated using [W]=0.
    Type: Grant
    Filed: September 27, 2022
    Date of Patent: April 2, 2024
    Assignee: DAIDO STEEL CO., LTD.
    Inventors: Takashi Yoshimoto, Kosuke Tomiyama
  • Fe-BASED ALLOY FOR MELTING-SOLIDIFICATION SHAPING AND METAL POWDER
    Publication number: 20230106326
    Abstract: An Fe-based alloy for melting-solidification shaping including, in mass %: 18.0?Co<25.0; 12.0?Mo+W/2?20.0; 0.2?Mn?5.0; 0.5?Ni?10.0; and 0?Si?1.0, with the balance being Fe and unavoidable impurities, and satisfying the following expressions (1) and (2) when [M] represents a content of an element M expressed in mass % basis, 58?[Co]+3([Mo]+[W]/2)?95 (1), A/B?1.6 (2) where A=[Co]+[Ni]+3[Mn], and B=[Mo]+[W]/2+[Si], in which when the Fe-based alloy includes no Mo, the expressions (1) and (2) are calculated using [Mo]=0, when the Fe-based alloy includes no Si, the expression (2) is calculated using [Si]=0, and when the Fe-based alloy includes no W, the expressions (1) and (2) are calculated using [W]=0.
    Type: Application
    Filed: September 27, 2022
    Publication date: April 6, 2023
    Inventors: Takashi YOSHIMOTO, Kosuke Tomiyama