Patents by Inventor Furuichi Keisuke

Furuichi Keisuke 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).

  • Reciprocating vibration generator
    Patent number: 8097991
    Abstract: A reciprocating vibration generator of a structure enabling force of a reciprocating vibrating body striking a coil to be absorbed by magnetic fluid even if an external impact force is applied, that is, a reciprocating vibration generator provided in a case body 100 with an upper plate spring 40 and a lower plate spring 50 for supporting a ring-shaped weight 20 having a ring-shaped permanent magnet 30 comprised of a combination of semi-ring-shaped permanent magnets 30R, 30L at its inner circumference side so as to be able to reciprocally vibrate in a vertical direction and a cylindrical excitation coil 60 passing through the inside of the ring-shaped permanent magnet 30 in the vertical direction and generating a reciprocating vibrating magnetic field, wherein the semi-ring-shaped permanent magnets 30R, 30L are magnetized in a direction spanning the inner circumferential surface and outer circumferential surface, the inner circumferential surface and top and bottom end faces of the semi-ring-shaped permanent m
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: January 17, 2012
    Assignee: Sanyo Seimitsu Co., Ltd.
    Inventors: Yamazaki Masami, Furuichi Keisuke, Katou Hiroki
  • RECIPROCATING VIBRATION GENERATOR
    Publication number: 20100102646
    Abstract: A reciprocating vibration generator of a structure enabling force of a reciprocating vibrating body striking a coil to be absorbed by magnetic fluid even if an external impact force is applied, that is, a reciprocating vibration generator provided in a case body 100 with an upper plate spring 40 and a lower plate spring 50 for supporting a ring-shaped weight 20 having a ring-shaped permanent magnet 30 comprised of a combination of semi-ring-shaped permanent magnets 30R, 30L at its inner circumference side so as to be able to reciprocally vibrate in a vertical direction and a cylindrical excitation coil 60 passing through the inside of the ring-shaped permanent magnet 30 in the vertical direction and generating a reciprocating vibrating magnetic field, wherein the semi-ring-shaped permanent magnets 30R, 30L are magnetized in a direction spanning the inner circumferential surface and outer circumferential surface, the inner circumferential surface and top and bottom end faces of the semi-ring-shaped permanent m
    Type: Application
    Filed: October 27, 2009
    Publication date: April 29, 2010
    Applicants: SANYO ELECTRIC CO., LTD., SANYO SEIMITSU CO., LTD.
    Inventors: Yamazaki Masami, Furuichi Keisuke, Katou Hiroki