Patents by Inventor Yoshito Yamasaki

Yoshito Yamasaki 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).

  • STAINLESS STEEL SUBSTRATE WITH CONDUCTIVE METAL LAYER, HARD DISK SUSPENSION MATERIAL AND HARD DISK SUSPENSION MANUFACTURED BY USING THE MATERIAL
    Publication number: 20100143743
    Abstract: A stainless steel substrate with one or more conductive metal layers, a method for manufacturing the same, and a hard disk drive suspension material using the same that are excellent in etching accuracy and does not involve the use of any substances casing environmental burdens, while ensuring stable adhesion between the conductive metal layers on the stainless steel substrate and the polyimide-based resin layer. The conductive metal layers are formed to have a total thickness ranging from 0.1 to 10 ?m, a centerline average surface roughness Ra from 0.05 to 1 ?m, and a ten-point average surface roughness Rz from 1 to 5 ?m, respectively.
    Type: Application
    Filed: January 26, 2007
    Publication date: June 10, 2010
    Applicant: NIPPON STEEL MATERIALS CO., LTD.
    Inventors: Yoshito Yamasaki, Jun Nakatsuka, Shuji Nagasaki, Tooru Inaguma, Yuji Kubo, Tsutomu Sugiura