Patents by Inventor Kobji Sakai

Kobji Sakai 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).

  • Optical scanning apparatus and scanning image forming lens
    Patent number: 6359717
    Abstract: An optical scanning apparatus includes a light source for outputting light, a first lens system arranged to receive the light output from the light source and to transmit a light flux therefrom, an optical deflector arranged to receive the light flux from the first lens system and having a deflecting reflective plane to deflect the light flux from a surface therefrom and a second lens system arranged to receive the light flux deflected from the optical deflector and to condense the deflected luminous flux into an optical beam spot on a surface to be scanned so as to form images having image heights, the luminous flux condensed by the second lens system into the optical beam spot including an optical beam waist.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: March 19, 2002
    Assignee: Ricoh Company, Ltd.
    Inventors: Seizo Suzuki, Magane Aoki, Kobji Sakai
  • Optical scanning apparatus and scanning image forming lens
    Publication number: 20010043382
    Abstract: An optical scanning apparatus includes a light source for outputting light, a first lens system arranged to receive the light output from the light source and to transmit a light flux therefrom, an optical deflector arranged to receive the light flux from the first lens system and having a deflecting reflective plane to deflect the light flux from a surface therefrom and a second lens system arranged to receive the light flux deflected from the optical deflector and to condense the deflected luminous flux into an optical beam spot on a surface to be scanned so as to form images having image heights, the luminous flux condensed by the second lens system into the optical beam spot including an optical beam waist.
    Type: Application
    Filed: June 6, 2001
    Publication date: November 22, 2001
    Inventors: Seizo Suzuki, Magane Aoki, Kobji Sakai