Patents by Inventor Toshihiro ISHll

Toshihiro ISHll 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).

  • Publication number: 20160377540
    Abstract: In an optical sensor, a light emission system emits an irradiated light of a linear polarization in a first polarization direction toward a surface of a target object having a sheet shape from an incident direction which is inclined with respect to a normal direction of the surface. A first light detection system includes a first light detector arranged on a first light path of a specular reflected light, which is emitted from the light emission system and is specularly reflected from the target object. A second light detection system includes a second light detector arranged on a second light path of a diffuse reflected light which is diffusely reflected from an incident plane on the target object. The second light detector receives second light passed by an optical element which passes a linear polarization component of a second polarization direction perpendicular to the first polarization direction.
    Type: Application
    Filed: September 9, 2016
    Publication date: December 29, 2016
    Applicant: RICOH COMPANY, LTD.
    Inventors: Yoshihiro OHBA, Satoru SUGAWARA, Toshihiro ISHll, Fumikazu HOSHI
  • Publication number: 20160149375
    Abstract: A disclosed surface-emitting laser module includes a surface-emitting laser formed on a substrate to emit light perpendicular to its surface, a package including a recess portion in which the substrate having the surface-emitting laser is arranged, and a transparent substrate arranged to cover the recess portion of the package and the substrate having the surface-emitting laser such that the transparent substrate and the package are connected on a light emitting side of the surface-emitting laser. In the surface-emitting laser module, a high reflectance region and a low reflectance region are formed within a region enclosed by an electrode on an upper part of a mesa of the surface-emitting laser, and the transparent substrate is slanted to the surface of the substrate having the surface-emitting laser in a polarization direction of the light emitted from the surface-emitting laser determined by the high reflectance region and the low reflectance region.
    Type: Application
    Filed: January 20, 2016
    Publication date: May 26, 2016
    Applicant: RICOH COMPANY, LTD.
    Inventors: Toshihiro ISHll, Satoru SUGAWARA, Yoshihiro OHBA, Kazuhiro HARASAKA, Shunichi SATO, Kazuhiko ADACHI
  • Publication number: 20160109364
    Abstract: In an optical senor, a light emission system emits an irradiated light of a linear polarization in a first polarization direction toward a surface of a target object having a sheet shape from an incident direction which is inclined with respect to a normal direction of the surface. A first light detection system includes a first light detector arranged on a first light path of a specular reflected light, which is emitted from the light emission system and is specularly reflected from the target object. A second light detection system includes a second light detector arranged on a second light path of a diffuse reflected light which is diffusely reflected from an incident plane on the target object. The second light detector receives second light passed by an optical element which passes a linear polarization component of a second polarization direction perpendicular to the first polarization direction.
    Type: Application
    Filed: December 21, 2015
    Publication date: April 21, 2016
    Applicant: RICOH COMPANY, LTD.
    Inventors: Yoshihiro OHBA, Satoru SUGAWARA, Toshihiro ISHll, Fumikazu HOSHI