Patents by Inventor Akinobu Kumagai

Akinobu Kumagai 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).

  • Multilayer inductor
    Patent number: 8143989
    Abstract: This disclosure provides a multilayer inductor that has a built-in coil composed of coil conductors each having a length of one turn and that can suppress the occurrence of delamination. The inductor includes plural laminated magnetic layers. Coil conductors loop along a ring-shaped path each through a length of one-turn on the magnetic layers, and include connection portions including end portions that are located on the loop and connection portions including end portions that are located inside the ring-shaped path. Lands are provided on the insulating layers so as to overlap a region as viewed in plan, and the region is surrounded by the first connection portions and the second connection portions.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: March 27, 2012
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Akinobu Kumagai
  • MULTILAYER INDUCTOR
    Publication number: 20110285495
    Abstract: This disclosure provides a multilayer inductor that has a built-in coil composed of coil conductors each having a length of one turn and that can suppress the occurrence of delamination. The inductor includes plural laminated magnetic layers. Coil conductors loop along a ring-shaped path each through a length of one-turn on the magnetic layers, and include connection portions including end portions that are located on the loop and connection portions including end portions that are located inside the ring-shaped path. Lands are provided on the insulating layers so as to overlap a region as viewed in plan, and the region is surrounded by the first connection portions and the second connection portions.
    Type: Application
    Filed: July 27, 2011
    Publication date: November 24, 2011
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventor: Akinobu KUMAGAI