Patents by Inventor Naomi Miura

Naomi Miura 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).

  • Case hardening steel and carburized part using same
    Publication number: 20030056859
    Abstract: A case hardening steel high in impact strength, consists essentially of carbon in an amount of from 0.1 to 0.3% by weight, silicon in an amount of from more than 0.3 to 1.0% by weight, manganese in an amount of from 0.3 to 1.7% by weight, phosphorus in an amount of not more than 0.03% by weight, sulfur in an amount of not more than 0.03% by weight, molybdenum in an amount of not more than 1.0% by weight, aluminum in an amount of not more than 0.04% by weight, nitrogen in an amount of not more than 0.03% by weight, and balance being iron and inevitable impurities. The case hardening steel meets an equation of [C %]+5([P %]+[S %])≦([Mn %]+[Mo %]+1.8)/8.
    Type: Application
    Filed: July 17, 2002
    Publication date: March 27, 2003
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Tomoki Hanyuda, Tuyoshi Nakamura, Takao Hayashi, Hideki Usuki, Masatoshi Honda, Yutaka Kurebayashi, Naomi Miura, Youichi Murakami