Patents by Inventor Toshikazu Numaguchi

Toshikazu Numaguchi 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).

  • Patent number: 8724286
    Abstract: An object of the present invention is to provide an ionizer having a cleaning system for cleaning an electrode needle of the ionizer automatically or remotely, while also being compact in size. The cleaning system (6) has a rotating member (61) configured to coaxially rotate with the fan (3), a plurality of rods (62a to 62d) attached to the rotating member (61) such that each rod extends radially from the rotating member, and brushes (63a to 63d) each attached to the end of each rod. The rotating member (61) is driven by an electromagnetic solenoid (64) via a coupling means (66).
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: May 13, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Hideki Uchida, Hideya Maki, Toshikazu Numaguchi, Masahiko Ito
  • Publication number: 20100188793
    Abstract: An object of the present invention is to provide an ionizer having a cleaning system for cleaning an electrode needle of the ionizer automatically or remotely, while also being compact in size. The cleaning system (6) has a rotating member (61) configured to coaxially rotate with the fan (3), a plurality of rods (62a to 62d) attached to the rotating member (61) such that each rod extends radially from the rotating member, and brushes (63a to 63d) each attached to the end of each rod. The rotating member (61) is driven by an electromagnetic solenoid (64) via a coupling means (66).
    Type: Application
    Filed: August 11, 2008
    Publication date: July 29, 2010
    Inventors: Hideki Uchida, Hideya Maki, Toshikazu Numaguchi, Masahiko Ito
  • Publication number: 20090020969
    Abstract: To provide a wheeled moving body incorporating electrostatic protection measures and capable of constantly monitoring its grounding condition, and a grounding condition monitoring system for the same. An electrostatic conductive mat 14 on a cart 10 is connected to an electrostatic conductive wheel 12 for grounding, and one end of an ohm meter (or volt meter) 18 mounted on the cart 10 is connected to the electrostatic conductive mat 14, while the other end is grounded by connecting it to a conductive wheel 24 insulated from the cart 10 by an insulating plate 13.
    Type: Application
    Filed: March 12, 2007
    Publication date: January 22, 2009
    Inventors: Toru Nakagawa, Toshikazu Numaguchi, Hideya Maki
  • Patent number: 7288494
    Abstract: An electro-magnetic wave shield cover having an array of first yarn members (10) formed by bundling (48) ends of polyester fibers around which a tin-plated copper metallic foil (12) is wound. The second yarn member (20) is formed by bundling 96 ends of polyester fibers. Doubled-yarn groups (10A, 10B, 10C, 10D) of the first yarn members running in the first direction (warp) from upper right to lower left and doubled-yarn groups (20A, 20B, 20C, 20D) of the second yarn members (20) running in the first direction (warp), and doubled-yarn groups (10a, 10b, 10c, 10d) of the first yarn members running in the second direction (weft) from upper left to lower right and doubled-yarn groups (20a, 20b, 20c, 20d) of the second yarn members running in the second (weft) direction are arranged so that the interlacing is made in such a manner that if the doubled-yarn group, running in the one direction is twice disposed beneath the doubled-yarn groups running in the other direction, then it is twice disposed above the latter.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: October 30, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Atsuo Iwasaki, Toshikazu Numaguchi, Yoshihiko Takahashi
  • Publication number: 20070003754
    Abstract: An antistatic composition containing a heat-resistant resin binder with a softening temperature (Ts) of 160-410° C. and carbon blacks and/or carbon nanofibers added as an antistatic agent to the binder is spread on a base material, such as the holding part of a holder such as tweezers, and is heat-treated at a temperature of 200-450° C., so that a film is formed. This film has a surface resistance value of preferably 103-1010 ?/sq.
    Type: Application
    Filed: March 3, 2004
    Publication date: January 4, 2007
    Inventors: Yukihisa Okada, Toshikazu Numaguchi
  • Publication number: 20040235381
    Abstract: An electro-magnetic wave shield cover having an array of first yarn members (10) formed by bundling 48 ends of polyester fibers around which a tin-plated copper metallic foil (12) is wound. The second yarn member (20) is formed by bundling 96 ends of polyester fibers. Doubled-yarn groups (10A, 10B, 10C, 10D) of the first yarn members running in the first direction from upper right to lower left and doubled-yarn groups (20A, 20B, 20C, 20D) of the second yarn members (20) running in the first direction, and doubled-yarn groups (10a, 11b, 11c, 11d) of the first yarn members running in the second direction from upper left to lower right and doubled-yarn groups (20a, 20b, 20c, 20d) of the second yarn members running in the first direction are arranged so that the interlacing is made in such a manner that if the doubled-yarn group running in the one direction is twice disposed beneath the doubled-yarn groups running in the other direction, then it is twice disposed above the latter.
    Type: Application
    Filed: January 6, 2004
    Publication date: November 25, 2004
    Inventors: Atsuo Iwasaki, Toshikazu Numaguchi, Yoshihiko Takahashi