Patents by Inventor Shingo Obara

Shingo Obara 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).

  • Electrical Machine and Vehicle Drive Device Equipped with the Same
    Publication number: 20090115282
    Abstract: An electrical machine includes a stator that includes: a yoke formed with laminated annular steel sheets; and a plurality of magnetic poles which protrude towards an inner diameter side of the yoke and on which a field coil is wound. In the stator, a radial width of apart of the yoke corresponding to a magnetic pole width is broader to an outer diameter side than a radial width of a part of the yoke provided throughout between the magnetic poles; and the stator is provided with a thorough-hole for a tightening bolt in the part of the yoke with the broad radial width.
    Type: Application
    Filed: October 22, 2008
    Publication date: May 7, 2009
    Applicant: Hitachi, Ltd.
    Inventors: Keisuke NISHIDATE, Masaru Ito, Shingo Obara, Shin Fujiwara