Patents by Inventor Norihiro Asada

Norihiro Asada 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: 9983404
    Abstract: A light deflecting device which suppresses a vibration caused by swing of a light deflecting unit and transmitted to a fixed unit and prevents noise from being made on a housing to which the fixed unit is attached, including a light deflecting unit having paired beams on both sides of a movable unit having a light reflecting unit and a coil, and a fixed unit to which the light deflecting unit is swingably fixed through the beams and which includes a magnetic field forming unit, swings the movable unit with the beams as torsional rotation axes by an electromagnetic force generated by a driving current flowing to the coil and a magnetic field formed by the magnetic field forming unit, and a counter swing member in the fixed unit to be swung in a reverse phase to the light deflecting unit so it is opposed to the light deflecting unit.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: May 29, 2018
    Assignee: HOKUYO AUTOMATIC CO., LTD.
    Inventor: Norihiro Asada
  • Publication number: 20170343794
    Abstract: A light deflecting device which suppresses a vibration caused by swing of a light deflecting unit and transmitted to a fixed unit and prevents noise from being made on a housing to which the fixed unit is attached, including a light deflecting unit having paired beams on both sides of a movable unit having a light reflecting unit and a coil, and a fixed unit to which the light deflecting unit is swingably fixed through the beams and which includes a magnetic field forming unit, swings the movable unit with the beams as torsional rotation axes by an electromagnetic force generated by a driving current flowing to the coil and a magnetic field formed by the magnetic field forming unit, and a counter swing member in the fixed unit to be swung in a reverse phase to the light deflecting unit so it is opposed to the light deflecting unit.
    Type: Application
    Filed: March 3, 2016
    Publication date: November 30, 2017
    Applicant: HOKUYO AUTOMATIC CO., LTD.
    Inventor: Norihiro ASADA
  • Patent number: 9423591
    Abstract: A metal elastic member to be used for beams 4 for supporting a movable unit 3 at respective ends with respect to a fixed unit 2 in a miniature machine including at least one movable unit 3, the fixed unit 2 and the beams 4 , and capable of swinging the movable unit about an axis P with the beams 4 serving as torsional rotation axes, includes a metal bar 4a having a predetermined length, a fixed unit pad 4b that is provided at a first end of the metal bar 4a and is fixed to the fixed unit 2, and a movable unit pad 4c formed on the other end side of the metal bar 4a and fixed to the movable unit 3. At least the metal bar 4a is molded to have a sectional area of 1 mm2 or less by using a physical or chemical processing method excluding a mechanical processing method and swings the movable unit 3 within a frequency of 150 Hz to 500 Hz.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: August 23, 2016
    Assignee: HOKUYO AUTOMATIC CO., LTD.
    Inventors: Toshihiro Mori, Norihiro Asada, Kazuo Takai
  • Patent number: 9195060
    Abstract: Scanning distance measuring equipment includes a light emitter/receiver and a deflector for deflecting and reflecting measurement light emitted from the light emitter/receiver to outside through an optical window. The deflector is provided with a first deflection mechanism including a movable unit swingable about a first axis and a drive unit for driving to swing the movable unit; a second deflection mechanism for driving to rotate the first deflection mechanism about a second axis perpendicular to the first axis; and a contactless power supply unit including a second coil that is located to rotate about the second axis along with the rotating second deflection mechanism, and a first coil that is located to face the second coil on a common axis.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: November 24, 2015
    Assignee: HOKUYO AUTOMATIC CO., LTD.
    Inventors: Toshihiro Mori, Norihiro Asada, Kazuo Takai
  • Publication number: 20150241691
    Abstract: A metal elastic member includes a movable unit 3, a fixed unit 2, and paired beams 4 for supporting the movable unit 3 at respective ends with respect to the fixed unit 2 and is used for the beams 4 of the miniature machine capable of swinging the movable unit 3 about an axis P with the beams 4 serving as torsional rotation axes, includes a metal bar 4a which swings the movable unit 3, and a fixed unit pad 4b that is provided at a first end of the metal bar and is fixed to the fixed unit 2, and the metal bar is molded to have a sectional area of 1 mm2 or less by using a physical or chemical processing method excluding a mechanical processing method and has a plurality of projections 4d formed in extension in an intersecting direction with the torsional rotation axes P.
    Type: Application
    Filed: June 30, 2014
    Publication date: August 27, 2015
    Inventor: Norihiro ASADA
  • Publication number: 20140151535
    Abstract: Scanning distance measuring equipment includes a light emitter/receiver and a deflector for deflecting and reflecting measurement light emitted from the light emitter/receiver to outside through an optical window. The deflector is provided with a first deflection mechanism including a movable unit swingable about a first axis and a drive unit for driving to swing the movable unit; a second deflection mechanism for driving to rotate the first deflection mechanism about a second axis perpendicular to the first axis; and a contactless power supply unit including a second coil that is located to rotate about the second axis along with the rotating second deflection mechanism, and a first coil that is located to face the second coil on a common axis.
    Type: Application
    Filed: February 25, 2013
    Publication date: June 5, 2014
    Applicant: HOKUYO AUTOMATIC CO., LTD.
    Inventors: Toshihiro MORI, Norihiro ASADA, Kazuo TAKAI
  • Publication number: 20140132187
    Abstract: A metal elastic member to be used for beams 4 for supporting a movable unit 3 at respective ends with respect to a fixed unit 2 in a miniature machine including at least one movable unit 3, the fixed unit 2 and the beams 4, and capable of swinging the movable unit about an axis P with the beams 4 serving as torsional rotation axes, includes a metal bar 4a having a predetermined length, a fixed unit pad 4b that is provided at a first end of the metal bar 4a and is fixed to the fixed unit 2, and a movable unit pad 4c formed on the other end side of the metal bar 4a and fixed to the movable unit 3. At least the metal bar 4a is molded to have a sectional area of 1 mm2 or less by using a physical or chemical processing method excluding a mechanical processing method and swings the movable unit 3 within a frequency of 150 Hz to 500 Hz.
    Type: Application
    Filed: October 21, 2013
    Publication date: May 15, 2014
    Applicant: HOKUYO AUTOMATIC CO., LTD.
    Inventors: Toshihiro Mori, Norihiro Asada, Kazuo Takai
  • Patent number: 7869108
    Abstract: The present invention provides an electromagnetically actuating optical deflecting elements which can be manufactured out of reduced number of components and are capable of being actuated at lower frequencies and at wider deflecting angles without causing mechanical influences of the metal wiring on beams of the optical deflecting element. For that purpose, the electromagnetically actuating optical deflecting element comprises: a movable part having a light reflecting plane and a coil; a base component having a magnetic field generating means; and a pair of beams which axially support said movable part on to the base component, The movable part is actuated by an electromagnetic force generated by an electric current flowing through the coil and the magnetic field generating means.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: January 11, 2011
    Assignee: Micro Precision Co. & Ltd.
    Inventors: Norihiro Asada, Kenichi Kagawa
  • Publication number: 20090122379
    Abstract: The present invention can provide a downsized optical deflecting element having less operating fluctuations at low cost and further it can be actuated at lower frequencies and at wider deflecting angles. The optical deflecting element comprises a base component having magnets therein; a soft resin component comprising a fixed part adhered to the base component and a movable part having a coil therein supported by the fixed part via a pair of beams; and a reflector plate 3 adhered on to the movable part. The soft resin component consists of a first insulating resin part 2-1 and second conductive resin part 2-2 for electrical wiring.
    Type: Application
    Filed: May 18, 2006
    Publication date: May 14, 2009
    Applicant: MICRO PRECISION CO. & LTD.
    Inventors: Kenichi Kagawa, Norihiro Asada
  • Publication number: 20090115289
    Abstract: The present invention provides a resonator capable of varying its resonance frequency of good performance with a low dispersion at a high manufacturing yield and a low cost. The resonator comprises a fixed electrode 1; a movable electrode 3 arranged with a predetermined distance apart from and parallel to the fixed electrode; a plurality of conductive leaf springs 2 with conductive property, all of which are bent outward or inward beforehand, arranged parallel apart from each other wherein, one end of each leaf spring is integrated into the fixed electrode and the other end of each leaf spring is integrated into the movable electrode; and an actuator 6 attached to the movable electrode for deforming the leaf springs by pushing or pulling the movable electrode.
    Type: Application
    Filed: June 27, 2006
    Publication date: May 7, 2009
    Applicant: MICRO PRECISION CO. & LTD.
    Inventor: Norihiro Asada
  • Publication number: 20080285107
    Abstract: The present invention provides an electromagnetically actuating optical deflecting elements which can be manufactured out of reduced number of components and are capable of being actuated at lower frequencies and at wider deflecting angles without causing mechanical influences of the metal wiring on beams of the optical deflecting element. For that purpose, the electromagnetically actuating optical deflecting element comprises: a movable part having a light reflecting plane and a coil; a base component having a magnetic field generating means; and a pair of beams which axially support said movable part on to the base component, The movable part is actuated by an electromagnetic force generated by an electric current flowing through the coil and the magnetic field generating means.
    Type: Application
    Filed: August 7, 2007
    Publication date: November 20, 2008
    Inventors: Norihiro Asada, Kenichi Kagawa
  • Patent number: 7442560
    Abstract: In order to provide an anisotropic conductive sheet which can be applied to more finely and more narrowly pitched electrodes and also to provide spring electrodes applied for the anisotropic conductive sheet, the spring electrodes manufactured as follows. A part having a bending leaf spring shape is formed out of a monocrystal silicon by anisotropic etching and gold is plated on the surface of the part so as to obtain a silicon spring electrode 1. The silicon spring electrodes 1 are inserted in through holes formed on a silicone rubber sheet and fixed to the through holes.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: October 28, 2008
    Assignees: Micro Precision Co. & Ltd., Okins Electronics Co., Ltd.
    Inventor: Norihiro Asada
  • Publication number: 20070158759
    Abstract: In order to provide an anisotropic conductive sheet which can be applied to more finely and more narrowly pitched electrodes and also to provide spring electrodes applied for the anisotropic conductive sheet, the spring electrodes manufactured as follows. A part having a bending leaf spring shape is formed out of a monocrystal silicon by anisotropic etching and gold is plated on the surface of the part so as to obtain a silicon spring electrode 1. The silicon spring electrodes 1 are inserted in through holes formed on a silicone rubber sheet and fixed to the through holes.
    Type: Application
    Filed: November 30, 2004
    Publication date: July 12, 2007
    Applicants: MICRO PRECISION CO. & LTD., OKINS ELECTRONICS CO., LTD.
    Inventor: Norihiro Asada
  • Patent number: 6774445
    Abstract: The invention aims at suppressing an amount of deformation of a central portion of a movable part in a micro-miniature semiconductor actuator. A boundary portion is provided between a central portion and an edge of a movable part which is axially supported in a rotatable manner by torsion bars of an actuator, the boundary portion suppressing transmission of a warp due to an influence of air resistance at the edge of the movable part or moment of inertia, or heat generated by a driving force generating portion at the edge of the movable part, to a central portion of the movable part, to suppress deformation of the central portion of the movable part.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: August 10, 2004
    Assignee: The Nippon Signal Co., Ltd.
    Inventors: Kiyotaka Mutoh, Yuzuru Ueda, Norihiro Asada
  • Patent number: 6504485
    Abstract: Monitoring and control apparatus for fail-safe monitoring for normal operation of traffic signal lights provided at an intersection or the like where a plurality of roads intersect. The illumination conditions of respective signal lights are detected using as sensor device, and when the number of illuminated or non-illuminated signal lights is a predetermined number, a normal judgment output of logic value 1 corresponding to a high energy condition is generated while, when the number of illuminated or non-illuminated signal lights is not the predetermined number, an abnormal judgment output of logic value 0 corresponding to a low energy condition is generated. As a result, when a fault in the monitoring apparatus stops the output, the resultant output condition is the same as for a danger condition due to a signal light abnormality, resulting in an extremely safe signal light monitoring and control with excellent fail-safe characteristics.
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: January 7, 2003
    Assignee: The Nippon Signal Co., Ltd.
    Inventors: Yoshitaka Jinno, Yoshiharu Ozaki, Norihiro Okada, Heisaku Mazawa, Hidetoshi Fujimoto, Junya Toda, Koichi Futsuhara, Norihiro Asada
  • Publication number: 20020149072
    Abstract: The invention aims at suppressing an amount of deformation of a central portion of a movable part in a micro-miniature semiconductor actuator. A boundary portion (10) is provided between a central portion and an edge of a movable part (3), which is axially supported in a rotatable manner by torsion bars (4, 4) of an actuator (1), the boundary portion (10) being for suppressing transmission of a warp due to an influence of air resistance at the edge of the movable part (3) or moment of inertia, or heat generated by a driving force generating portion (6) at the edge of the movable part, to a central portion of the movable part, to suppress deformation of the central portion of the movable part.
    Type: Application
    Filed: May 30, 2002
    Publication date: October 17, 2002
    Applicant: The Nippon Signal Co., Ltd.
    Inventors: Kiyotaka Mutoh, Yuzuru Ueda, Norihiro Asada
  • Patent number: 6456413
    Abstract: The present invention relates to a planar type optical scanning apparatus and a mounting structure thereof, which enables further miniaturization and cost reduction. By locating a mirror (14), on the surface side of a movable plate (12) that is axially supported by torsion bars (13A, 13B) on a silicon substrate (11), and a drive coil (15) on the rear side thereof, the area of the movable plate (12) can be reduced. Furthermore, in an optical scanning apparatus fixing region on a package substrate (31), a cavity (32) and conductive patterns (33, 33A, 33B) are provided, the construction being such that the electrode terminals (16A, 16B) of the drive coil provided on the rear face of the silicon substrate (11) of the optical scanning apparatus (10) are connected with the conductive patterns (33, 33A, 33B) to mount the optical scanning apparatus (10) on the package substrate (31).
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: September 24, 2002
    Assignee: The Nippon Signal Co., Ltd.
    Inventor: Norihiro Asada
  • Patent number: 6404313
    Abstract: An electromagnetic actuator includes an external movable plate formed integrally with a semiconductor substrate. A first torsion bar movably supports the movable plate with respect to the semiconductor substrate. An internal movable plate is disposed inside the external movable plate. A second torsion bar rotatably supports the internal movable plate relative to the external movable plate, and is positioned at a right angle relative to the first torsion bar; and further includes a single turn first driving coil extending around the external movable plate; a single turn second driving coil extending around the internal movable plate, and which is connected in series with the first driving coil; magnetic field generating means for applying a magnetic field to the first and second driving coils; and an optical element having an optical axis and located on the internal movable plate.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: June 11, 2002
    Assignee: Nihon Shingo Kabushiki Kaisha
    Inventor: Norihiro Asada
  • Publication number: 20020008629
    Abstract: The invention relates to monitoring apparatus and control apparatus for fail-safe monitoring for normal operation of traffic signal lights provided at an intersection or the like where a plurality of roads intersect.
    Type: Application
    Filed: January 9, 2001
    Publication date: January 24, 2002
    Applicant: The Nippon Signal Co., Ltd.
    Inventors: Yoshitaka Jinno, Yoshiharu Ozaki, Norihiro Okada, Heisaku Mazawa, Hidetoshi Fujimoto, Junya Toda, Koichi Futsuhara, Norihiro Asada
  • Publication number: 20010052834
    Abstract: An electromagnetic actuator includes an external movable plate formed integrally with a semiconductor substrate. A first torsion bar movably supports the movable plate with respect to the semiconductor substrate. An internal movable plate is disposed inside the external movable plate. A second torsion bar rotatably supports the internal movable plate relative to the external movable plate, and is positioned at a right angle relative to the first torsion bar; and further includes a single turn first driving coil extending around the external movable plate; a single turn second driving coil extending around the internal movable plate, and which is connected in series with the first driving coil; magnetic field generating means for applying a magnetic field to the first and second driving coils; and an optical element having an optical axis and located on the internal movable plate.
    Type: Application
    Filed: January 11, 2001
    Publication date: December 20, 2001
    Inventor: Norihiro Asada