Patents by Inventor Katsunori Bekki

Katsunori Bekki 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).

  • R—Fe—B porous magnet and method for producing the same
    Patent number: 9418786
    Abstract: An R—Fe—B based porous magnet according to the present invention has an aggregate structure of Nd2Fe14B type crystalline phases with an average grain size of 0.1 ?m to 1 ?m. At least a portion of the magnet is porous and has micropores with a major axis of 1 ?m to 20 ?m.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: August 16, 2016
    Assignee: HITACHI METALS, LTD.
    Inventors: Takeshi Nishiuchi, Noriyuki Nozawa, Satoshi Hirosawa, Tomohito Maki, Katsunori Bekki
  • R-Fe-B POROUS MAGNET AND METHOD FOR PRODUCING THE SAME
    Publication number: 20120306308
    Abstract: An R—Fe—B based porous magnet according to the present invention has an aggregate structure of Nd2Fe14B type crystalline phases with an average grain size of 0.1 ?m to 1 ?m. At least a portion of the magnet is porous and has micropores with a major axis of 1 ?m to 20 ?m.
    Type: Application
    Filed: August 16, 2012
    Publication date: December 6, 2012
    Applicant: HITACHI METALS, LTD.
    Inventors: Takeshi NISHIUCHI, Noriyuki NOZAWA, Satoshi HIROSAWA, Tomohito MAKI, Katsunori BEKKI
  • R-Fe-B porous magnet and method for producing the same
    Patent number: 8268093
    Abstract: An R—Fe—B based porous magnet according to the present invention has an aggregate structure of Nd2Fe14B type crystalline phases with an average grain size of 0.1 ?m to 1 ?m. At least a portion of the magnet is porous and has micropores with a major axis of 1 ?m to 20 ?m.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: September 18, 2012
    Assignee: Hitachi Metals, Ltd.
    Inventors: Takeshi Nishiuchi, Noriyuki Nozawa, Satoshi Hirosawa, Tomohito Maki, Katsunori Bekki
  • Rare earth alloy binderless magnet and method for manufacture thereof
    Patent number: 7938915
    Abstract: A method for producing a rare-earth alloy based binderless magnet according to the present invention includes the steps of: (A) providing a rapidly solidified rare-earth alloy magnetic powder; and (B) compressing and compacting the rapidly solidified rare-earth alloy magnetic powder by a cold process without using a resin binder, thereby obtaining a compressed compact, 70 vol % to 95 vol % of which is the rapidly solidified rare-earth alloy magnetic powder.
    Type: Grant
    Filed: August 3, 2006
    Date of Patent: May 10, 2011
    Assignees: Hitachi Metals, Ltd., Nippon Kagaku Yakin Co., Ltd.
    Inventors: Hirokazu Kanekiyo, Toshio Miyoshi, Katsunori Bekki, Ikuo Uemoto, Kazuo Ishikawa
  • RARE EARTH ALLOY BINDERLESS MAGNET AND METHOD FOR MANUFACTURE THEREOF
    Publication number: 20090127494
    Abstract: A method for producing a rare-earth alloy based binderless magnet according to the present invention includes the steps of: (A) providing a rapidly solidified rare-earth alloy magnetic powder; and (B) compressing and compacting the rapidly solidified rare-earth alloy magnetic powder by a cold process without using a resin binder, thereby obtaining a compressed compact, 70 vol % to 95 vol % of which is the rapidly solidified rare-earth alloy magnetic powder.
    Type: Application
    Filed: August 3, 2006
    Publication date: May 21, 2009
    Applicants: HITACHI METALS, LTD., NIPPON KAGAKU YAKIN CO., LTD.
    Inventors: Hirokazu Kanekiyo, Toshio Miyoshi, Katsunori Bekki, Ikuo Uemoto, Kazuo Ishikawa
  • R-Fe-Beta POROUS MAGNET AND METHOD FOR PRODUCING THE SAME
    Publication number: 20090123774
    Abstract: An R—Fe—B based porous magnet according to the present invention has an aggregate structure of Nd2Fe14B type crystalline phases with an average grain size of 0.1 ?m to 1 ?m. At least a portion of the magnet is porous and has micropores with a major axis of 1 ?m to 20 ?m.
    Type: Application
    Filed: May 18, 2007
    Publication date: May 14, 2009
    Inventors: Takeshi Nishiuchi, Noriyuki Nozawa, Satoshi Hirosawa, Tomohito Maki, Katsunori Bekki