Patents by Inventor Osamu Takashima

Osamu Takashima 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: 7508551
    Abstract: An image reading apparatus is equipped with an optical unit. Just prior to shifting to a low power-consumption mode, the optical unit is shifted to a low power-consumption position that is different from a home position.
    Type: Grant
    Filed: April 7, 2003
    Date of Patent: March 24, 2009
    Assignee: Ricoh Company, Ltd.
    Inventors: Katsunori Shoji, Osamu Takashima, Junichi Murano, Kazuyoshi Matsumoto, Toshiyuki Uchida
  • Patent number: 7106990
    Abstract: The image forming apparatus is equipped with a straight handle that can be pushed into and pulled out of an outer wall through a hole provided to the outer wall, and has a protruding component on the outer wall in the vicinity and next to the hole. The handle is constituted such that when pulled outward from the hole, the handle protrudes horizontally at a specific angle away from the protruding component.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: September 12, 2006
    Assignee: Ricoh Company, Ltd.
    Inventors: Junichi Murano, Kazuyoshi Matsumoto, Osamu Takashima, Katsunori Shoji
  • Publication number: 20050095032
    Abstract: The image forming apparatus is equipped with a straight handle that can be pushed into and pulled out of an outer wall through a hole provided to the outer wall, and has a protruding component on the outer wall in the vicinity and next to the hole. The handle is constituted such that when pulled outward from the hole, the handle protrudes horizontally at a specific angle away from the protruding component.
    Type: Application
    Filed: September 13, 2004
    Publication date: May 5, 2005
    Inventors: Junichi Murano, Kazuyoshi Matsumoto, Osamu Takashima, Katsunori Shoji
  • Patent number: 6779975
    Abstract: A duct fan unit, which is a simple structure that can be disassembled by an easy operation and the manufacture cost thereof can be decreased. The duct fan unit comprises a duct and a fan. The duct, allows air to pass through is constructed by engaging two duct constructing members together. The fan is installed inside the duct. A guide portion having a rib shape is set on only one of the duct constructing members such that the fan can be installed easily. A resilient protrusion is set on the other duct constructing member such that the fan can be resiliently pressed for securing the fan in position. Therefore, by simply latching the connecting plate of one duct constructing member with the connecting hole of the other duct constructing member the two duct constructing members are fixed to each other.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: August 24, 2004
    Assignee: Ricoh Company, Ltd.
    Inventors: Osamu Takashima, Kazuyoshi Matsumoto, Junichi Murano, Katsunori Shoji, Kiyoshi Tsukamura, Toshiyuki Uchida
  • Patent number: 6725991
    Abstract: A driving device, which can maintain a sufficient rated torque of the non-magnetization type electromagnetic clutch, comprises a driving motor and a driving gear. The driving motor and the driving gear are connected by a non-magnetization type electromagnetic clutch. The electromagnetic clutch comprises a driving shaft, wherein the driving shaft of the electromagnetic clutch is made of non-magnetic material. Because the driving shaft is made of non-magnetic material, therefore the magnetic field of the permanent magnet is not adversely affected or disordered, and a stable rated torque can be achieved.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: April 27, 2004
    Assignee: Ricoh Company, Ltd.
    Inventors: Junichi Murano, Kazuyoshi Matsumoto, Katsunori Shoji, Osamu Takashima, Toshiyuki Uchida, Kiyoshi Tsukamura
  • Publication number: 20030231364
    Abstract: An image reading apparatus is equipped with an optical unit. Just prior to shifting to a low power-consumption mode, the optical unit is shifted to a low power-consumption position that is different from a home position.
    Type: Application
    Filed: April 7, 2003
    Publication date: December 18, 2003
    Inventors: Katsunori Shoji, Osamu Takashima, Junichi Murano, Kazuyoshi Matsumoto, Toshiyuki Uchida
  • Publication number: 20030053908
    Abstract: A duct fan unit, which is a simple structure that can be disassembled by an easy operation and the manufacture cost thereof can be decreased. The duct fan unit comprises a duct and a fan. The duct, allows air to pass through is constructed by engaging two duct constructing members together. The fan is installed inside the duct. A guide portion having a rib shape is set on only one of the duct constructing members such that the fan can be installed easily. A resilient protrusion is set on the other duct constructing member such that the fan can be resiliently pressed for securing the fan in position. Therefore, by simply latching the connecting plate of one duct constructing member with the connecting hole of the other duct constructing member the two duct constructing members are fixed to each other.
    Type: Application
    Filed: September 17, 2002
    Publication date: March 20, 2003
    Inventors: Osamu Takashima, Kazuyoshi Matsumoto, Junichi Murano, Katsunori Shoji, Kiyoshi Tsukamura, Toshiyuki Uchida
  • Publication number: 20030047407
    Abstract: A driving device, which can maintain a sufficient rated torque of the non-magnetization type electromagnetic clutch, comprises a driving motor and a driving gear. The driving motor and the driving gear are connected by a non-magnetization type electromagnetic clutch. The electromagnetic clutch comprises a driving shaft, wherein the driving shaft of the electromagnetic clutch is made of non-magnetic material. Because the driving shaft is made of non-magnetic material, therefore the magnetic field of the permanent magnet is not adversely affected or disordered, and a stable rated torque can be achieved.
    Type: Application
    Filed: August 30, 2002
    Publication date: March 13, 2003
    Inventors: Junichi Murano, Kazuyoshi Matsumoto, Katsunori Shoji, Osamu Takashima, Toshiyuki Uchida, Kiyoshi Tsukamura
  • Patent number: 5913095
    Abstract: An image forming apparatus including a paper cassette loaded with a stack of papers and a paper stacking device for stacking papers carrying images thereon is disclosed. The apparatus has an upper casing part rotatable away from a lower casing part. When the upper casing part is rotated away from the lower casing part, the apparatus successfully prevents the upper casing part from interfering with a tray or similar paper stacking means and prevents papers stacked on the tray from dropping without having its overall length increased. The tray is arranged in the rear portion of the apparatus opposite to the front portion where a control panel is located, thereby reducing the widthwise dimension of the apparatus. Even in such a position, the tray allows papers stacked thereon to be easily picked up.
    Type: Grant
    Filed: August 25, 1997
    Date of Patent: June 15, 1999
    Assignee: Ricoh Company, Ltd.
    Inventors: Osamu Takashima, Kazuki Suzuki, Shizuo Kawamura, Yuusuke Noguchi, Eiji Sawamura, Masahiro Tomita, Kazuyuki Saitoh