Patents by Inventor Yasumasa Igi

Yasumasa Igi 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: 11052479
    Abstract: A smartphone, tablet or mobile computer based soldering system control method and apparatus to allow a user or supervisor of users to monitor and control the operating parameters of soldering devices or measuring device. The control method and apparatus has features for cartridge management, temperature calibration and control, user performance and wireless interactive control. The control method may interactively control soldering devices connected directly to a power supply and optionally soldering device components of a soldering system that includes a control station to provide power to the soldering device.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: July 6, 2021
    Assignee: HAKKO CORP.
    Inventors: Mitsuhiko Miyazaki, Yasumasa Igi, Nobuharu Boh
  • Patent number: 10802449
    Abstract: The present invention is intended to ease the control and management of soldering devices, and enhance convenience. In accordance with the intention of the invention, a system includes a power supply unit having a connecting cable to be connected to soldering devices, a power supply portion supplying power to the soldering devices through the connecting cable, a power supply control portion to control the power supply from the power supply portion based on a temperature setting signal T(s) set in advance and a control unit that may be physically separated from the power supply unit but which inputs the temperature setting signal T(s) to the power supply control portion of the power supply unit.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: October 13, 2020
    Assignee: Hakko Corp.
    Inventors: Yoshitomo Teraoka, Kenta Nakamura, Yasumasa Igi
  • Publication number: 20200130085
    Abstract: A smartphone, tablet or mobile computer based soldering system control method and apparatus to allow a user or supervisor of users to monitor and control the operating parameters of soldering devices or measuring device. The control method and apparatus has features for cartridge management, temperature calibration and control, user performance and wireless interactive control. The control method may interactively control soldering devices connected directly to a power supply and optionally soldering device components of a soldering system that includes a control station to provide power to the soldering device.
    Type: Application
    Filed: October 30, 2018
    Publication date: April 30, 2020
    Applicant: Hakko Corporation
    Inventors: Mitsuhiko Miyazaki, Yasumasa Igi, Nobuharu Boh
  • Patent number: 10413985
    Abstract: A controller and a control method for a hot air blower used in the field of solder reworking. The controller allows a user to change the control parameters effectively while using the hot air blower.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: September 17, 2019
    Assignee: Hakko Corporation
    Inventors: Yoshitomo Teraoka, Hitoshi Takeuchi, Yasumasa Igi, Kenta Nakamura
  • Publication number: 20180193937
    Abstract: A controller and a control method for a hot air blower used in the field of solder reworking. The controller allows a user to change the control parameters effectively while using the hot air blower.
    Type: Application
    Filed: December 22, 2016
    Publication date: July 12, 2018
    Applicant: Hakko Corporation
    Inventors: Yoshitomo Teraoka, Hitoshi Takeuchi, Yasumasa Igi, Kenta Nakamura
  • Publication number: 20150246404
    Abstract: The present invention is intended to ease the control and management of soldering devices, and enhance convenience. In accordance with the intention of the invention, a system includes a power supply unit having a connecting cable to be connected to soldering devices, a power supply portion supplying power to the soldering devices through the connecting cable, a power supply control portion to control the power supply from the power supply portion based on a temperature setting signal T(s) set in advance and a control unit that may be physically separated from the power supply unit but which inputs the temperature setting signal T(s) to the power supply control portion of the power supply unit.
    Type: Application
    Filed: August 1, 2014
    Publication date: September 3, 2015
    Applicant: Hakko Corporation
    Inventors: Yoshitomo Teraoka, Kenta Nakamura, Yasumasa Igi
  • Patent number: 7760595
    Abstract: An optical disc device includes: a spindle motor for rotating a disc; a motor driving circuit for applying a voltage to the spindle motor to drive the spindle motor; an optical pickup for irradiating the disc with an optical beam; and a detector for, after the motor driving circuit starts voltage application to the spindle motor, measuring a pit length based on reflection light, on the disc, of the optical beam irradiated by the optical pickup and then detecting based on a result of the measurement that the spindle motor is in short condition. In the optical disc device, upon detection by the detector that the spindle motor is in short condition, the motor driving circuit stops the voltage application to the spindle motor.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: July 20, 2010
    Assignee: Funai Electric Co., Ltd.
    Inventor: Yasumasa Igi
  • Patent number: 7760601
    Abstract: Conventional reproducing apparatuses used to perform incorrect detection or consume electricity considerably. According to the present invention, the comparator 61 comparing voltages at both ends of the spindle motor 15 and outputting the result is provided, and the control IC 12 judges whether or not the spindle motor 15 is rotating based on the output from the comparator 61. Based on this judgment, brake pulses are repeatedly supplied to the spindle motor 15 until the spindle motor 15 stops. Based on the number of times the brake pulses are supplied until the spindle motor 15 stops, the presence or absence of an optical disk in the disk drive is determined.
    Type: Grant
    Filed: November 5, 2007
    Date of Patent: July 20, 2010
    Assignee: Funai Electric Co., Ltd.
    Inventor: Yasumasa Igi
  • Patent number: 7548492
    Abstract: The optical disk recording/reproduction device is provided with an information recording area search means, comprising, a moving means which detects the presence and absence of information and return moves an optical pickup from inward to outward or from outward to inward direction of an optical disk, and a stopping means which stops the movement of optical pickup if an information recording area is detected in the movement of optical pickup. If the existence of information cannot be confirmed at a re-zeroing position in the initial operation, the optical pickup is moved to the inward of optical disk at a normal velocity; when the optical pickup passes through the information recording area, it is braked and stopped. If the existence of information can be confirmed at the stop position, the flow is shifted to normal reproduction; if it cannot be confirmed, the optical pickup is determined to pass through the information recording area and stop, returned from the stop position and moved outward at a low speed.
    Type: Grant
    Filed: September 2, 2005
    Date of Patent: June 16, 2009
    Assignee: Funai Electric Co., Ltd.
    Inventor: Yasumasa Igi
  • Patent number: 7457211
    Abstract: An optical apparatus calculates, based on the information data recording time, a recording area recording information data and an area to be finalized that is expected to become an unrecorded area after the information data is recorded, and alternately repeats recording of information data into the recording area and finalization including recording of predetermined dummy data into an area to be finalized a predetermined distance away from the calculated information data recording area. Once recording of the information data is complete and the information data recording area is fixed, the apparatus records predetermined dummy data into a remaining non-finalized area of the recording medium to perform finalization.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: November 25, 2008
    Assignee: Funai Electric Co., Ltd.
    Inventor: Yasumasa Igi
  • Publication number: 20080109835
    Abstract: Conventional reproducing apparatuses used to perform incorrect detection or consume electricity considerably. According to the present invention, the comparator 61 comparing voltages at both ends of the spindle motor 15 and outputting the result is provided, and the control IC 12 judges whether or not the spindle motor 15 is rotating based on the output from the comparator 61. Based on this judgment, brake pulses are repeatedly supplied to the spindle motor 15 until the spindle motor 15 stops. Based on the number of times the brake pulses are supplied until the spindle motor 15 stops, the presence or absence of an optical disk in the disk drive is determined.
    Type: Application
    Filed: November 5, 2007
    Publication date: May 8, 2008
    Applicant: Funai Electric Co., Ltd.
    Inventor: Yasumasa Igi
  • Publication number: 20080094992
    Abstract: An optical disc device includes: a spindle motor for rotating a disc; a motor driving circuit for applying a voltage to the spindle motor to drive the spindle motor; an optical pickup for irradiating the disc with an optical beam; and a detector for, after the motor driving circuit starts voltage application to the spindle motor, measuring a pit length based on reflection light, on the disc, of the optical beam irradiated by the optical pickup and then detecting based on a result of the measurement that the spindle motor is in short condition. In the optical disc device, upon detection by the detector that the spindle motor is in short condition, the motor driving circuit stops the voltage application to the spindle motor.
    Type: Application
    Filed: September 28, 2007
    Publication date: April 24, 2008
    Inventor: Yasumasa Igi
  • Publication number: 20070041292
    Abstract: A disk reproducing apparatus that includes: a first rotation control unit that applies a constant drive voltage to a spindle motor to thereby rotate an optical disk; a measuring unit that measures the length of the longest bit included in an EFM signal on information data reproduced from the optical disk based on a reference clock; a calculating unit that calculates the number of rotations of the optical disk from the longest bit length measured by the measuring means; and a setting unit that, based on a mutual relationship between the drive voltage of the spindle motor and the number of rotations of the optical disk, sets a gain of a motor drive IC according to the number of rotations of the optical disk calculated by the calculating unit.
    Type: Application
    Filed: August 17, 2006
    Publication date: February 22, 2007
    Inventor: Yasumasa Igi
  • Publication number: 20060083133
    Abstract: An optical apparatus calculates, based on the information data recording time, a recording area recording information data and an area to be finalized that is expected to become an unrecorded area after the information data is recorded, and alternately repeats recording of information data into the recording area and finalization including recording of predetermined dummy data into an area to be finalized a predetermined distance away from the calculated information data recording area. Once recording of the information data is complete and the information data recording area is fixed, the apparatus records predetermined dummy data into a remaining non-finalized area of the recording medium to perform finalization.
    Type: Application
    Filed: September 20, 2005
    Publication date: April 20, 2006
    Inventor: Yasumasa Igi
  • Publication number: 20060077797
    Abstract: The optical disk recording/reproduction device is provided with an information recording area search means, comprising, a moving means which detects the presence and absence of information and return moves an optical pickup from inward to outward or from outward to inward direction of an optical disk, and a stopping means which stops the movement of optical pickup if an information recording area is detected in the movement of optical pickup. If the existence of information cannot be confirmed at a re-zeroing position in the initial operation, the optical pickup is moved to the inward of optical disk at a normal velocity; when the optical pickup passes through the information recording area, it is braked and stopped. If the existence of information can be confirmed at the stop position, the flow is shifted to normal reproduction; if it cannot be confirmed, the optical pickup is determined to pass through the information recording area and stop, returned from the stop position and moved outward at a low speed.
    Type: Application
    Filed: September 2, 2005
    Publication date: April 13, 2006
    Applicant: Funai Electric Co., Ltd.
    Inventor: Yasumasa Igi
  • Publication number: 20060077881
    Abstract: An optical recording medium comprises a base layer, recording layers formed on the base layer so that pits, which cause light reflection different from that of areas around the pits, are formed thereon, encoded data pits formed on each of the recording layers in an arrangement corresponding to encoded data produced by encoding information, and visual information-display pits formed on each of the recording layers to have a width larger than that of other pits so as to display visible information. The recording layers are stacked on one side of the base layer. The visual information-display pits are formed in corresponding areas on the respective recording layers. This configuration can produce clearer transitions between light and dark on the optical disc so that the visible information can be displayed to be easily viewable as compared with a conventional configuration where visual information-display pits are formed on only a single recording layer.
    Type: Application
    Filed: September 15, 2005
    Publication date: April 13, 2006
    Applicant: Funai Electric Co., Ltd.
    Inventors: Yasumasa Igi, Hironori Tani
  • Publication number: 20060077818
    Abstract: A controller in an optical disc processor serves as a visual information recording unit for recording visible information by forming visual information-display pits to be closely aggregated together in a given display pattern, the visual information-display pits having a width larger than that of other pits, wherein the title information is contained in a TOC to be recorded on an optical disc. The visual information-display pits are formed on a recording layer closest to a base layer and different from a recording layer on which to form encoded data pits. This makes it possible to record visible information on the optical disc without requiring a user to separately input data for visual information recording.
    Type: Application
    Filed: September 14, 2005
    Publication date: April 13, 2006
    Applicant: Funai Electric Co., Ltd.
    Inventors: Masanori Ujino, Yasumasa Igi