Patents by Inventor Eijiro Kikuno

Eijiro Kikuno 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: 7782744
    Abstract: A recording method whereby an inorganic resist made of an incomplete oxide of a transition metal is formed as a film onto a substrate and a latent image corresponding to pits is formed onto the inorganic resist by exposure. The exposure is performed by a laser beam whose intensity has been modulated by a pulse signal whose pulse height decreases in a rear portion in a length direction of the pit, thereby forming a format of a track pitch smaller than a recording beam diameter (track pitch/exposure beam diameter=0.333 to 0.833).
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: August 24, 2010
    Assignees: Sony Corporation, Sony Disc & Digital Solutions, Inc.
    Inventors: Sohmei Endoh, Noriyuki Saito, Takahiro Igari, Takeshi Gouko, Shinji Minegishi, Eijiro Kikuno
  • Patent number: 7706245
    Abstract: A recording method whereby an inorganic resist made of an incomplete oxide of a transition metal is formed as a film onto a substrate and a latent image corresponding to pits is formed onto the inorganic resist by exposure. The exposure is performed by a laser beam whose intensity has been modulated by a pulse signal whose pulse height decreases in a rear portion in a length direction of the pit, thereby forming a format of a track pitch smaller than a recording beam diameter (track pitch/exposure beam diameter=0.333 to 0.833).
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: April 27, 2010
    Assignees: Sony Corporation, Sony Disc and Digital Solutions, Inc.
    Inventors: Sohmei Endoh, Noriyuki Saito, Takahiro Igari, Takeshi Gouko, Shinji Minegishi, Eijiro Kikuno
  • Publication number: 20090129255
    Abstract: A recording method whereby an inorganic resist made of an incomplete oxide of a transition metal is formed as a film onto a substrate and a latent image corresponding to pits is formed onto the inorganic resist by exposure. The exposure is performed by a laser beam whose intensity has been modulated by a pulse signal whose pulse height decreases in a rear portion in a length direction of the pit, thereby forming a format of a track pitch smaller than a recording beam diameter(track pitch/exposure beam diameter=0.333 to 0.833).
    Type: Application
    Filed: January 30, 2009
    Publication date: May 21, 2009
    Applicants: Sony Corporation, Sony Disc & Digital Solutions, Inc.
    Inventors: Sohmei Endoh, Noriyuki Saito, Takahiro Igari, Takeshi Gouko, Shinji Minegishi, Eijiro Kikuno
  • Patent number: 7529175
    Abstract: A recording method whereby an inorganic resist made of an incomplete oxide of a transition metal is formed as a film onto a substrate and a latent image corresponding to pits is formed onto the inorganic resist by exposure. The exposure is performed by a laser beam whose intensity has been modulated by a pulse signal whose pulse height decreases in a rear portion in a length direction of the pit, thereby forming a format of a track pitch smaller than a recording beam diameter (track pitch/exposure beam diameter=0.333 to 0.833).
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: May 5, 2009
    Assignees: Sony Corporation, Sony Disc & Digital Solutions, Inc.
    Inventors: Sohmei Endoh, Noriyuki Saito, Takahiro Igari, Takeshi Gouko, Shinji Minegishi, Eijiro Kikuno
  • Publication number: 20080310294
    Abstract: A recording method whereby an inorganic resist made of an incomplete oxide of a transition metal is formed as a film onto a substrate and a latent image corresponding to pits is formed onto the inorganic resist by exposure. The exposure is performed by a laser beam whose intensity has been modulated by a pulse signal whose pulse height decreases in a rear portion in a length direction of the pit, thereby forming a format of a track pitch smaller than a recording beam diameter (track pitch/exposure beam diameter=0.333 to 0.833).
    Type: Application
    Filed: May 30, 2008
    Publication date: December 18, 2008
    Inventors: Sohmei Endoh, Noriyuki Saito, Takahiro Igari, Takeshi Gouko, Shinji Minegishi, Eijiro Kikuno
  • Publication number: 20070036933
    Abstract: A recording method whereby an inorganic resist made of an incomplete oxide of a transition metal is formed as a film onto a substrate and a latent image corresponding to pits is formed onto the inorganic resist by exposure. The exposure is performed by a laser beam whose intensity has been modulated by a pulse signal whose pulse height decreases in a rear portion in a length direction of the pit, thereby forming a format of a track pitch smaller than a recording beam diameter (track pitch/exposure beam diameter=0.333 to 0.833).
    Type: Application
    Filed: July 28, 2006
    Publication date: February 15, 2007
    Inventors: Sohmei Endoh, Noriyuki Saito, Takahiro Igari, Takeshi Gouko, Shinji Minegishi, Eijiro Kikuno
  • Patent number: 6524418
    Abstract: A method of production of a multilayer optical recording medium capable of avoiding difficulties in separating a stamper and forming a semi-transparent film on a thin flexible film and a production method thereof, comprising steps of forming a first optical recording layer on a substrate formed with a pattern of irregularities for a first optical recording layer on a surface thereof, forming a transfer substrate comprised of an acrylic resin formed with a pattern of irregularities on a surface thereof, forming a second optical recording layer on the pattern of irregularities of the transfer substrate, adhering a flexible film at the upper portion of the second optical recording layer by an adhesive layer, separating the second optical recording layer and the transfer substrate at their boundary to transfer the second optical recording layer to the flexible film, and bonding together the first optical recording layer and the second optical recording layer with them facing each other.
    Type: Grant
    Filed: July 17, 2001
    Date of Patent: February 25, 2003
    Assignee: Sony Corporation
    Inventors: Takeshi Yamasaki, Tomomi Yukumoto, Toshiyuki Kashiwagi, Yuji Akiyama, Eijiro Kikuno
  • Publication number: 20020043328
    Abstract: A method of production of a multilayer optical recording medium capable of avoiding difficulties in separating a stamper and forming a semi-transparent film on a thin flexible film and a production method thereof, comprising steps of forming a first optical recording layer on a substrate formed with a pattern of irregularities for a first optical recording layer on a surface thereof, forming a transfer substrate comprised of an acrylic resin formed with a pattern of irregularities on a surface thereof, forming a second optical recording layer on the pattern of irregularities of the transfer substrate, adhering a flexible film at the upper portion of the second optical recording layer by an adhesive layer, separating the second optical recording layer and the transfer substrate at their boundary to transfer the second optical recording layer to the flexible film, and bonding together the first optical recording layer and the second optical recording layer with them facing each other.
    Type: Application
    Filed: July 17, 2001
    Publication date: April 18, 2002
    Inventors: Takeshi Yamasaki, Tomomi Yukumoto, Toshiyuki Kashiwagi, Yuji Akiyama, Eijiro Kikuno