Patents by Inventor Yukito Satoh

Yukito Satoh 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: 8054327
    Abstract: An optical deflector of the present invention includes a movable mirror and torsion bars supporting the mirror and formed integrally with the mirror. The mirror reciprocatingly vibrates to reflect a light beam to thereby deflect it. The mirror is curved in the form of an arch in a section including at least the torsion bars. The mirror deforms little during vibration even if it is thin. Small power can cause such a thin mirror to vibrate with a large amplitude.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: November 8, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Yukito Satoh, Mitsumi Fujii
  • Publication number: 20090290205
    Abstract: An optical deflector of the present invention includes a movable mirror and torsion bars supporting the mirror and formed integrally with the mirror. The mirror reciprocatingly vibrates to reflect a light beam to thereby deflect it. The mirror is curved in the form of an arch in a section including at least the torsion bars. The mirror deforms little during vibration even if it is thin. Small power can cause such a thin mirror to vibrate with a large amplitude.
    Type: Application
    Filed: July 31, 2009
    Publication date: November 26, 2009
    Inventors: Yukito SATOH, Mitsumi Fujii
  • Patent number: 7593029
    Abstract: An optical deflector of the present invention includes a movable mirror and torsion bars supporting the mirror and formed integrally with the mirror. The mirror reciprocatingly vibrates to reflect a light beam to thereby deflect it. The mirror is curved in the form of an arch in a section including at least the torsion bars. The mirror deforms little during vibration even if it is thin. Small power can cause such a thin mirror to vibrate with a large amplitude.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: September 22, 2009
    Assignee: Ricoh Company, Ltd.
    Inventors: Yukito Satoh, Mitsumi Fujii, Tomohiro Nakajima, Yoshinori Hayashi, Eiji Mochizuki
  • Patent number: 7417780
    Abstract: A vibration mirror is reciprocatively vibrated by an electrostatic force to reflect an incident light beam.
    Type: Grant
    Filed: September 1, 2005
    Date of Patent: August 26, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Mitsumi Fujii, Yukito Satoh, Tomohiro Nakajima
  • Patent number: 7221493
    Abstract: A vibration mirror is reciprocatively vibrated by an electrostatic force to reflect an incident light beam.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: May 22, 2007
    Assignee: Ricoh Company, Ltd.
    Inventors: Mitsumi Fujii, Yukito Satoh, Tomohiro Nakajima
  • Patent number: 7068296
    Abstract: In this optical scanning device, a plurality of scanning optical systems are arranged in a main scanning direction. Each of the scanning optical systems includes a deflecting unit performing an optical scanning by oscillation. Scanning frequencies of the deflecting units are substantially equal to one another. Each of the deflecting units is provided with means for varying the scanning frequency. The scanning frequency of each of the deflecting units is set midway between a maximum value and a minimum value of a resonance frequency intrinsic to the deflecting unit.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: June 27, 2006
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshinori Hayashi, Tomohiro Nakajima, Mitsumi Fujii, Yukito Satoh, Eiji Mochizuki
  • Publication number: 20060012844
    Abstract: A vibration mirror is reciprocatively vibrated by an electrostatic force to reflect an incident light beam.
    Type: Application
    Filed: September 1, 2005
    Publication date: January 19, 2006
    Inventors: Mitsumi Fujii, Yukito Satoh, Tomohiro Nakajima
  • Patent number: 6972883
    Abstract: A vibration mirror is reciprocatively vibrated by an electrostatic force to reflect an incident light beam.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: December 6, 2005
    Assignee: Ricoh Company, Ltd.
    Inventors: Mitsumi Fujii, Yukito Satoh, Tomohiro Nakajima
  • Publication number: 20050046917
    Abstract: A vibration mirror is reciprocatively vibrated by an electrostatic force to reflect an incident light beam.
    Type: Application
    Filed: September 30, 2004
    Publication date: March 3, 2005
    Inventors: Mitsumi Fujii, Yukito Satoh, Tomohiro Nakajima
  • Publication number: 20030227538
    Abstract: A vibration mirror is reciprocatively vibrated by an electrostatic force to reflect an incident light beam.
    Type: Application
    Filed: February 19, 2003
    Publication date: December 11, 2003
    Inventors: Mitsumi Fujii, Yukito Satoh, Tomohiro Nakajima
  • Publication number: 20030072066
    Abstract: In this optical scanning device, a plurality of scanning optical systems are arranged in a main scanning direction. Each of the scanning optical systems includes a deflecting unit performing an optical scanning by oscillation. Scanning frequencies of the deflecting units are substantially equal to one another. Each of the deflecting units is provided with means for varying the scanning frequency. The scanning frequency of each of the deflecting units is set midway between a maximum value and a minimum value of a resonance frequency intrinsic to the deflecting unit.
    Type: Application
    Filed: September 13, 2002
    Publication date: April 17, 2003
    Inventors: Yoshinori Hayashi, Tomohiro Nakajima, Mitsumi Fujii, Yukito Satoh, Eiji Mochizuki
  • Publication number: 20030053156
    Abstract: An optical deflector of the present invention includes a movable mirror and torsion bars supporting the mirror and formed integrally with the mirror. The mirror reciprocatingly vibrates to reflect a light beam to thereby deflect it. The mirror is curved in the form of an arch in a section including at least the torsion bars. The mirror deforms little during vibration even if it is thin. Small power can cause such a thin mirror to vibrate with a large amplitude.
    Type: Application
    Filed: August 20, 2002
    Publication date: March 20, 2003
    Inventors: Yukito Satoh, Mitsumi Fujii, Tomohiro Nakajima, Yoshinori Hayashi, Eiji Mochizuki
  • Patent number: 6497474
    Abstract: An electrostatic actuator includes a diaphragm caused to vibrate by electrostatic force, an electrode substrate opposing the diaphragm, an electrode formed on the electrode substrate so as to oppose said diaphragm with a gap being formed between the electrode and the diaphragm, an anti-corrosive thin film formed on said diaphragm, and diaphragm deflection prevention means preventing the diaphragm from deflecting.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: December 24, 2002
    Assignee: Ricoh Company, Ltd.
    Inventors: Mitsugu Irinoda, Yukito Satoh, Junichi Azumi, Kaihei Isshiki
  • Publication number: 20020047876
    Abstract: An electrostatic actuator includes a diaphragm caused to vibrate by electrostatic force, an electrode substrate opposing the diaphragm, an electrode formed on the electrode substrate so as to oppose said diaphragm with a gap being formed between the electrode and the diaphragm, an anti-corrosive thin film formed on said diaphragm, and diaphragm deflection prevention means preventing the diaphragm from deflecting.
    Type: Application
    Filed: August 3, 2001
    Publication date: April 25, 2002
    Applicant: Ricoh Company, Ltd.
    Inventors: Mitsugu Irinoda, Yukito Satoh, Junichi Azumi, Kaihei Isshiki
  • Patent number: 5793073
    Abstract: A semiconductor thin film sensor device including a semiconductor body formed of silicon having a (110) plane; a depression formed by an anisotropic etch applied to a first surface of the semiconductor body, wherein the first surface is substantially parallel to the (110) plane; and a thin film insulation member having a predetermined configuration suspended over the depression, and having substantially opposing ends connected to the first surface of the semiconductor body so that the thin film insulation member is bridged across the depression. Preferably, the depth of the depression is over 200 .mu.m. In one embodiment, the predetermined configuration of the thin film insulation member is oriented substantially parallel to a <100> direction of the semiconductor body.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: August 11, 1998
    Assignee: Ricoh Co., Ltd.
    Inventors: Morimasa Kaminishi, Takayuki Yamaguchi, Yukito Satoh