Patents by Inventor Osamu Kawazoe

Osamu Kawazoe 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).

  • Method for adjusting a multi-beam source unit
    Patent number: 6992279
    Abstract: A method for adjusting a multi-beam source unit including a multi-beam laser diode provided with light emitting points, and a collimator lens includes measuring a state of a position of the light emitting points with respect to a standard design line based on beam spots corresponding to the light emitting points on an image recording surface, and rotating the multi-beam laser diode about an optical axis of a scanning optical system to align the position of the light emitting points with the standard design line.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: January 31, 2006
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroyuki Okuwaki, Osamu Kawazoe, Yasuhiro Naoe
  • Method for adjusting a multi-beam source unit
    Publication number: 20050007781
    Abstract: A method for adjusting a multi-beam source unit including a multi-beam laser diode provided with light emitting points, and a collimator lens includes measuring a state of a position of the light emitting points with respect to a standard design line based on beam spots corresponding to the light emitting points on an image recording surface, and rotating the multi-beam laser diode about an optical axis of a scanning optical system to align the position of the light emitting points with the standard design line.
    Type: Application
    Filed: August 4, 2004
    Publication date: January 13, 2005
    Inventors: Hiroyuki Okuwaki, Osamu Kawazoe, Yasuhiro Naoe
  • Adjusting device for a multi-beam source unit and image forming apparatus
    Patent number: 6798820
    Abstract: An adjusting device for a multi-beam source unit includes a mounting bracket, a base member rotatably mounted on the mounting bracket and a multi-beam laser diode provided with light emitting points positioned substantially in a straight line with respect to each other. The multi-beam laser diode is mounted on the base member and radiates a laser beam from the light emitting points. The base member rotates such that the laser beam is radiated onto a predetermined position of an image recording plane of a scanning optical system.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: September 28, 2004
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroyuki Okuwaki, Osamu Kawazoe, Yasuhiro Naoe
  • Light source device including semiconductor lasers
    Patent number: 6343092
    Abstract: A cost-effective and accurate light source deice for use in an image forming apparatus and including semiconductor lasers is disclosed. The device needs only a minimum number of parts, obviates displacements during assembly, and allows collimator lenses to be adhered by photo-curable adhesive. Even when temperature around the device varies, the distance between the semiconductor lasers in a beam pitch direction varies little.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: January 29, 2002
    Assignee: Ricoh Company, Ltd.
    Inventors: Yasuhiro Naoe, Hiroyuki Okuwaki, Osamu Kawazoe
  • Method and device for adjusting a multi-beam source unit, method for assembling the multi-beam source unit, and image forming apparatus using the multi-beam source unit
    Publication number: 20010019564
    Abstract: A multi-beam source unit adjusting method is disclosed wherein an arrangement direction of light emitting points of a multi-beam laser diode relative to a horizontal scanning direction of a scanning optical system can be aligned with a predetermined standard design line direction.
    Type: Application
    Filed: December 8, 2000
    Publication date: September 6, 2001
    Applicant: RICOH COMPANY, LTD
    Inventors: Hiroyuki Okuwaki, Osamu Kawazoe, Yasuhiro Naoe
  • Light source device including semiconductor lasers
    Patent number: 6097749
    Abstract: A cost-effective and accurate light source deice for use in an image forming apparatus and including semiconductor lasers is disclosed. The device needs only a minimum number of parts, obviates displacements during assembly, and allows collimator lenses to be adhered by photo-curable adhesive. Even when temperature around the device varies, the distance between the semiconductor lasers in a beam pitch direction varies little.
    Type: Grant
    Filed: April 7, 1998
    Date of Patent: August 1, 2000
    Assignee: Ricoh Company, Ltd.
    Inventors: Yasuhiro Naoe, Hiroyuki Okuwaki, Osamu Kawazoe