Patents by Inventor Kiyoshi Hibino
Kiyoshi Hibino 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).
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Patent number: 11933897Abstract: A distance measurement device includes: a mirror disposed so as to be tilted relative to a rotation center axis; a drive unit configured to rotate the mirror about the rotation center axis; a photodetector configured to detect reflected light, of laser light, reflected in a distance measurement region; and a condensing lens disposed on the rotation center axis and configured to condense the reflected light reflected by the mirror, on the photodetector. The mirror has a shape elongated in one direction and is disposed such that a short axis thereof is tilted relative to the rotation center axis in a direction parallel to a plane including the rotation center axis. A width in a short-axis direction of the mirror is smaller than a width of a lens portion of the condensing lens as viewed in a direction parallel to the rotation center axis.Type: GrantFiled: October 1, 2020Date of Patent: March 19, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kazuhisa Ide, Masaomi Inoue, Hirotaka Ueno, Kouichi Kumamaru, Masahiro Shiihara, Kouichi Bairin, Takashi Haruguchi, Kiyoshi Hibino
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Patent number: 11474241Abstract: There is provided a distance measurement device that can appropriately detect a distance to an object regardless of the distance. The distance measurement device includes a laser light source, a photodetector, and a controller. The controller performs a long-distance routine that detects timing for receiving light when an object is at a long distance, and a short-distance routine that detects the timing for receiving light when the object is at a short distance, based on a detection signal output from the photodetector during one distance measurement operation. The controller then selects one of a detection result of the timing for receiving light by the long-distance routine and a detection result of the timing for receiving light by the short-distance routine, and calculates the distance to the object irradiated with projection light based on the selected detection result.Type: GrantFiled: October 11, 2018Date of Patent: October 18, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Toshihiro Koga, Kiyoshi Hibino, Takashi Haruguchi, Kazuhisa Ide, Masaomi Inoue, Masahiro Shiihara, Kouichi Bairin, Kouichi Kumamaru
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Publication number: 20210141062Abstract: A distance measurement device for measuring a distance to an object that exists in a distance measurement region includes: a light source configured to emit laser light; a lens configured to converge the laser light emitted from the light source, into substantially parallel light; a tubular light blocking member disposed on an optical path of the laser light emitted from the light source and surrounding the optical path; a photodetector configured to detect reflected light, of the laser light, reflected at the distance measurement region; and a condensing lens configured to condense the reflected light passing through the outside of the light blocking member, onto the photodetector.Type: ApplicationFiled: January 20, 2021Publication date: May 13, 2021Inventors: Kiyoshi Hibino, Takashi HARUGUCHI, Masaomi INOUE, Kazuhisa IDE, Masahiro SHIIHARA, Kouichi BAIRIN, Kouichi KUMAMARU, Hirotaka UENO, Hideo YAMAGUCHI
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Publication number: 20210018625Abstract: A distance measurement device includes: a mirror disposed so as to be tilted relative to a rotation center axis; a drive unit configured to rotate the mirror about the rotation center axis; a photodetector configured to detect reflected light, of laser light, reflected in a distance measurement region; and a condensing lens disposed on the rotation center axis and configured to condense the reflected light reflected by the mirror, on the photodetector. The mirror has a shape elongated in one direction and is disposed such that a short axis thereof is tilted relative to the rotation center axis in a direction parallel to a plane including the rotation center axis. A width in a short-axis direction of the mirror is smaller than a width of a lens portion of the condensing lens as viewed in a direction parallel to the rotation center axis.Type: ApplicationFiled: October 1, 2020Publication date: January 21, 2021Inventors: Kazuhisa Ide, Masaomi Inoue, Hirotaka Ueno, Kouichi KUMAMARU, Masahiro SHIIHARA, Kouichi BAIRIN, Takashi HARUGUCHI, Kiyoshi HIBINO
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Publication number: 20190120960Abstract: There is provided a distance measurement device that can appropriately detect a distance to an object regardless of the distance. The distance measurement device includes a laser light source, a photodetector, and a controller. The controller performs a long-distance routine that detects timing for receiving light when an object is at a long distance, and a short-distance routine that detects the timing for receiving light when the object is at a short distance, based on a detection signal output from the photodetector during one distance measurement operation. The controller then selects one of a detection result of the timing for receiving light by the long-distance routine and a detection result of the timing for receiving light by the short-distance routine, and calculates the distance to the object irradiated with projection light based on the selected detection result.Type: ApplicationFiled: October 11, 2018Publication date: April 25, 2019Inventors: TOSHIHIRO KOGA, KIYOSHI HIBINO, TAKASHI HARUGUCHI, KAZUHISA IDE, MASAOMI INOUE, MASAHIRO SHIIHARA, KOUICHI BAIRIN, KOUICHI KUMAMARU
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Patent number: 8050152Abstract: An optical pickup unit comprising: an objective lens that focuses laser light on an optical disc; a lens holder that holds the objective lens; a coil that is fitted on the lens holder and capable of driving the lens holder; and a reinforcement member that is fitted on the lens holder and reinforces strength of the lens holder.Type: GrantFiled: May 17, 2010Date of Patent: November 1, 2011Assignees: Sanyo Electric Co., Ltd., Sanyo Optec Design Co., Ltd.Inventors: Akira Iijima, Takamitsu Touno, Kiyoshi Hibino
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Patent number: 7956312Abstract: An optical disc device comprising: first and second laser diodes to radiate first and second laser beams with different first and second wavelengths, respectively; a first objective lens to irradiate the first laser beam to reflection area to read out image recording control data for controlling record of image recorded in the reflection area on label side of optical disc; a second objective lens to irradiate the second laser beam to image recording area to record image in the image recording area on the label side after reading out the data; a lens holder that the lenses are fixed thereon to be arranged side by side in radial direction, to be displaced in direction toward signal side and the radial direction; and a control unit to obtain distance between the lenses in the radial direction to calibrate recording position of image signal recorded in the image recording area.Type: GrantFiled: October 12, 2007Date of Patent: June 7, 2011Assignees: Sanyo Electric Co., Ltd., Sanyo Optec Design Co., Ltd.Inventors: Kiyoshi Hibino, Kenichirou Kawabuchi
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Publication number: 20100246370Abstract: An optical pickup unit comprising: an objective lens that focuses laser light on an optical disc; a lens holder that holds the objective lens; a coil that is fitted on the lens holder and capable of driving the lens holder; and a reinforcement member that is fitted on the lens holder and reinforces strength of the lens holder.Type: ApplicationFiled: May 17, 2010Publication date: September 30, 2010Applicants: Sanyo Electric Co., Ltd., Sanyo Optec Design Co., Ltd.Inventors: Akira Iijima, Takamitsu Touno, Kiyoshi Hibino
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Patent number: 7764582Abstract: A focus servo apparatus which comprises an optical pickup having a power lens that changes an incidence angle of laser light incident on an objective lens and a power lens actuator that drives the power lens along an optical axis direction. In a focus search operation, the focus servo apparatus controls the power lens actuator to drive the power lens along the optical axis direction and detects having been brought into the focus servo area on the basis of a focus error signal obtained from photo-reception outputs from a photo-detector of the optical pickup, and then allows a focus servo to be in lock and returns the power lens to its initial position with driving the objective lens so as to maintain the lock state.Type: GrantFiled: March 14, 2006Date of Patent: July 27, 2010Assignees: Sanyo Electric Co., Ltd., Sanyo Optec Design Co., Ltd.Inventor: Kiyoshi Hibino
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Patent number: 7746733Abstract: An optical pickup unit is disclosed which comprises: an objective lens that focuses laser light on an optical disc; a lens holder that holds the objective lens; a coil that is fitted on the lens holder and capable of driving the lens holder; and a heat transfer improving member that is fitted on the holder to cause heat to be radiated, wherein the heat is generated in the coil when the coil is energized.Type: GrantFiled: January 31, 2007Date of Patent: June 29, 2010Assignees: Sanyo Electric Co., Ltd., Sanyo Optec Design Co., Ltd.Inventors: Akira Iijima, Takamitsu Touno, Kiyoshi Hibino
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Publication number: 20080095018Abstract: An optical disc device comprising: first and second laser diodes to radiate first and second laser beams with different first and second wavelengths, respectively; a first objective lens to irradiate the first laser beam to reflection area to read out image recording control data for controlling record of image recorded in the reflection area on label side of optical disc; a second objective lens to irradiate the second laser beam to image recording area to record image in the image recording area on the label side after reading out the data; a lens holder that the lenses are fixed thereon to be arranged side by side in radial direction, to be displaced in direction toward signal side and the radial direction; and a control unit to obtain distance between the lenses in the radial direction to calibrate recording position of image signal recorded in the image recording area.Type: ApplicationFiled: October 12, 2007Publication date: April 24, 2008Applicants: SANYO ELECTRIC CO., LTD., SANYO OPTEC DESIGN CO., LTD.Inventors: Kiyoshi Hibino, Kenichirou Kawabuchi
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Patent number: 7310297Abstract: This invention provides an optical disk device comprising an optical pick-up being structured to irradiate light beams onto an optical disk through an objective lens unit, receive the light beams reflected from the optical disk by a two-divided light-receiving element, convert amounts of light received by each segment of the light-receiving element into electrical outputs, and detect differential signals between the electrical outputs, a spherical aberration adjustment device for changing spherical aberration of light emitted from the objective lens, a detection device for detecting control signals for the adjustment device to minimize asymmetry of the deterioration degree of the differential signal amplitude detected when a light beam is defocused at any desired position on the radius of the optical disk, and a memory device for storing the control signals corresponding to the positions on the radius.Type: GrantFiled: September 29, 2004Date of Patent: December 18, 2007Assignee: Sanyo Electric Co., Ltd.Inventor: Kiyoshi Hibino
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Publication number: 20070253296Abstract: An optical pickup unit is disclosed which comprises: an objective lens that focuses laser light on an optical disc; a lens holder that holds the objective lens; a coil that is fitted on the lens holder and capable of driving the lens holder; and a heat transfer improving member that is fitted on the holder to cause heat to be radiated, wherein the heat is generated in the coil when the coil is energized.Type: ApplicationFiled: January 31, 2007Publication date: November 1, 2007Applicants: Sanyo Electric Co., Sanyo Optec Design Co., Ltd.Inventors: Akira Iijima, Takamitsu Touno, Kiyoshi Hibino
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Publication number: 20060209655Abstract: A focus servo apparatus which comprises an optical pickup having a power lens that changes an incidence angle of laser light incident on an objective lens and a power lens actuator that drives the power lens along an optical axis direction. In a focus search operation, the focus servo apparatus controls the power lens actuator to drive the power lens along the optical axis direction and detects having been brought into the focus servo area on the basis of a focus error signal obtained from photo-reception outputs from a photo-detector of the optical pickup, and then allows a focus servo to be in lock and returns the power lens to its initial position with driving the objective lens so as to maintain the lock state.Type: ApplicationFiled: March 14, 2006Publication date: September 21, 2006Applicants: Sanyo Electric Co., Ltd, Sanyo Optec Design Co., Ltd.Inventor: Kiyoshi HIBINO
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Patent number: 7088659Abstract: An optical disk apparatus includes a laser diode, and a light from the laser diode becomes a parallel light by a collimator lens, which is reflected toward an object lens by a reflection mirror. The parallel light transmitted through a through-hole provided on an object lens holder is reflected by a disk, and a reflected light is incident upon a light-receiving sensor via the collimator lens, a polarizing beam splitter and a prism. The parallel light reflected by the reflection mirror is reflected by a mirror integrated with the object lens holder, and incident upon the light-receiving sensor via the collimator lens, the polarizing beam splitter and the prism. A disk tilt and/or an object lens tilt are/is detected from output signals of divided light-receiving sensors of the light-receiving sensor.Type: GrantFiled: October 7, 2002Date of Patent: August 8, 2006Assignee: Sanyo Electric Co., Ltd.Inventor: Kiyoshi Hibino
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Publication number: 20050068880Abstract: This invention provides an optical disk device comprising an optical pick-up being structured to irradiate light beams onto an optical disk through an objective lens unit, receive the light beams reflected from the optical disk by a two-divided light-receiving element, convert amounts of light received by each segment of the light-receiving element into electrical outputs, and detect differential signals between the electrical outputs, a spherical aberration adjustment device for changing spherical aberration of light emitted from the objective lens, a detection device for detecting control signals for the adjustment device to minimize asymmetry of the deterioration degree of the differential signal amplitude detected when a light beam is defocused at any desired position on the radius of the optical disk, and a memory device for storing the control signals corresponding to the positions on the radius.Type: ApplicationFiled: September 29, 2004Publication date: March 31, 2005Applicant: SANYO ELECTRIC CO., LTD.Inventor: Kiyoshi Hibino
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Publication number: 20030080273Abstract: An optical disk apparatus includes a laser diode, and a light from the laser diode becomes a parallel light by a collimator lens, which is reflected toward an object lens by a reflection mirror, and focused on a disk through the object lens. A reflected light from the disk is incident on a light-receiving sensor via the collimator lens and a polarization beam splitter. A disk tilt or a lens tilt that renders an amplitude of a push-pull signal of the light-receiving sensor maximum at an arbitrary radial location of the disk is detected. Furthermore, in recording or reproducing the signal, a tilt amount of the disk or the lens (inclination angle) in accordance with the radial location as of that time is set.Type: ApplicationFiled: October 31, 2002Publication date: May 1, 2003Applicant: SANYO ELECTRIC CO., LTD.Inventor: Kiyoshi Hibino
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Publication number: 20030081520Abstract: An optical disk apparatus includes a laser diode, and a light from the laser diode becomes a parallel light by a collimator lens, which is reflected toward an object lens by a reflection mirror. The parallel light transmitted through a through-hole provided on an object lens holder is reflected by a disk, and a reflected light is incident upon a light-receiving sensor via the collimator lens, a polarizing beam splitter and a prism. The parallel light reflected by the reflection mirror is reflected by a mirror integrated with the object lens holder, and incident upon the light-receiving sensor via the collimator lens, the polarizing beam splitter and the prism. A disk tilt and/or an object lens tilt are/is detected from output signals of divided light-receiving sensors of the light-receiving sensor.Type: ApplicationFiled: October 7, 2002Publication date: May 1, 2003Applicant: Sanyo Electric Co., Ltd.Inventor: Kiyoshi Hibino
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Patent number: 6126346Abstract: A number-of-pulses correction value corresponding to non-uniformity in conveyance appearing during one circulation of a conveying roller is held in a number-of-pulses correction value storing section 32. A control section 33 produces the target number of pulses (a real number) in the printing position at the destination of one line feed on the basis of the number-of-pulses correction value, and the target number of pulses (a real number) in the printing position at the destination of the line feed is changed into an integer, and the pulses whose number is an integer are fed to a pulse motor 11, to control the amount of rotation of the pulse motor 11. Further, the control section 33 corrects the target number of pulses in the printing position at the current time point in correspondence to the fact that the pulses whose number is not a real number but an integer are fed to the motor. Consequently, it is possible to reduce the occurrence of non-uniformity in a pitch between lines.Type: GrantFiled: August 25, 1997Date of Patent: October 3, 2000Assignee: Sanyo Electric Co., Ltd.Inventors: Kiyoshi Hibino, Mitsuaki Kurokawa, Yoshinori Senoh
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Patent number: 5864354Abstract: A UV-fixable thermal recording apparatus uses UV-fixable color thermal recording paper, uniformity of light intensity distribution, high efficiency and miniaturization of a fixing lamp to prevent degradation of the print quality this apparatus has at least one fixing lamp, and a row of heating resistors in the form of a plurality of heating resistors arranged parallel to the direction of paper delivery. The width in the direction of paper delivery of an area of the paper exposed by the fixing lamp is made larger than the length of the row of heating. resistors. The fixing lamp and the row of heating resistors are so arranged that the position of an (end on the upstream side in the forward direction of paper delivery) of the exposed area of the fixing lamp is on the downstream side of the position of an end (on the upstream side in this direction) of the row of heating resistors.Type: GrantFiled: October 10, 1995Date of Patent: January 26, 1999Assignee: Sanyo Electric Co., LtdInventors: Kiyoshi Hibino, Satoshi Kuwabara, Koji Mabuchi, Etuzi Shimizu