Patents by Inventor Rika Andoh

Rika Andoh 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).

  • Sheet finisher with sheet folding capability and image forming system using the same
    Patent number: 7336921
    Abstract: A sheet folding device for folding a sheet or a sheet stack conveyed thereto of the present invention includes a path along which the sheet or the sheet stack to be folded is conveyed. A fold plate is movable in a direction perpendicular to the above path for forming a fold in the sheet or the sheet stack. A pair of rotatable fold rollers face the fold plate and are positioned one above the other. Pressing members exerts, when the fold is to be formed, a pair of equal pressing forces on the fold rollers to thereby maintain the nip between the fold rollers on a line including the locus of movement of the fold plate.
    Type: Grant
    Filed: August 14, 2003
    Date of Patent: February 26, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Nobuyoshi Suzuki, Masahiro Tamura, Hiromoto Saitoh, Shuuya Nagasako, Naohiro Kikkawa, Hiroki Okada, Junichi Iida, Kenji Yamada, Junichi Tokita, Rika Andoh, legal representative, Akihito Andoh
  • Sheet finisher and image forming system using the same
    Patent number: 6905118
    Abstract: A sheet finisher of the present invention is included in an image forming system and folds a stack of sheets sequentially transferred from an image forming apparatus thereto. The sheet finisher includes a fold roller pair for holding the stack of sheets being conveyed via a nip thereof. A reinforce roller reinforces the fold of the folded sheet stack in cooperation with a guide plate. A drive mechanism causes the reinforce roller to move in a direction perpendicular to a direction of sheet conveyance. A shock absorbing member is located at a position where the reinforce roller and guide plate contact each other.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: June 14, 2005
    Assignee: Ricoh Company, Ltd.
    Inventors: Kenji Yamada, Shuuya Nagasako, Masahiro Tamura, Nobuyoshi Suzuki, Hiromoto Saitoh, Hiroki Okada, Junichi Iida, Rika Andoh, Naohiro Kikkawa, Junichi Tokita, Akihito Andoh
  • Sheet finisher with sheet folding capability and image forming system using the same
    Publication number: 20040104525
    Abstract: A sheet folding device for folding a sheet or a sheet stack conveyed thereto of the present invention includes a path along which the sheet or the sheet stack to be folded is conveyed. A fold plate is movable in a direction perpendicular to the above path for forming a fold in the sheet or the sheet stack. A pair of rotatable fold rollers face the fold plate and are positioned one above the other. Pressing members exerts, when the fold is to be formed, a pair of equal pressing forces on the fold rollers to thereby maintain the nip between the fold rollers on a line including the locus of movement of the fold plate.
    Type: Application
    Filed: August 14, 2003
    Publication date: June 3, 2004
    Inventors: Nobuyoshi Suzuki, Masahiro Tamura, Hiromoto Saitoh, Shuuya Nagasako, Naohiro Kikkawa, Hiroki Okada, Junichi Iida, Kenji Yamada, Junichi Tokita, Akihito Andoh, Rika Andoh
  • Sheet finisher and image forming system using the same
    Publication number: 20040070133
    Abstract: A sheet finisher of the present invention is included in an image forming system and folds a stack of sheets sequentially transferred from an image forming apparatus thereto. The sheet finisher includes a fold roller pair for holding the stack of sheets being conveyed via a nip thereof. A reinforce roller reinforces the fold of the folded sheet stack in cooperation with a guide plate. A drive mechanism causes the reinforce roller to move in a direction perpendicular to a direction of sheet conveyance. A shock absorbing member is located at a position where the reinforce roller and guide plate contact each other.
    Type: Application
    Filed: July 30, 2003
    Publication date: April 15, 2004
    Inventors: Kenji Yamada, Shuuya Nagasako, Masahiro Tamura, Nobuyoshi Suzuki, Hiromoto Saitoh, Hiroki Okada, Junichi Iida, Akihito Andoh, Rika Andoh, Naohiro Kikkawa, Junichi Tokita