Patents by Inventor Ryusuki Hasegawa

Ryusuki Hasegawa 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).

  • Iron-based high saturation induction amorphous alloy
    Publication number: 20060191602
    Abstract: An iron-based amorphous alloy and magnetic core with an iron-based amorphous alloy having a chemical composition with a formula FeaBbSicCd, where 81<a?84, 10?b?18, 0<c?5 and 0<d<1.5, numbers being in atomic percent, with incidental impurities, simultaneously have a value of a saturation magnetic induction exceeding 1.6 tesla, a Curie temperature of at least 300° C. and a crystallization temperature of at least 400° C. When cast in a ribbon form, such an amorphous metal alloy is ductile and thermally stable, and is suitable for various electric devices because of high magnetic stability at such devices' operating temperatures.
    Type: Application
    Filed: December 30, 2005
    Publication date: August 31, 2006
    Applicants: METGLAS, INC., HITACHI METALS, LTD
    Inventors: Ryusuki Hasegawa, Daichi Azuma, Yoshihito Yoshizawa, Yuichi Ogawa