Patents by Inventor MASATOSHI NISHIO

MASATOSHI NISHIO 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: 20190353857
    Abstract: A condenser lens for collecting a laser beam (300) is disposed between the laser oscillator and the incident end surface of the optical fiber. The laser beam (300) is divided into a plurality of beams (303, 304). The power of the laser beam (304) is measured and maximized by adjusting the position of the condenser lens. The FFP of the laser beam (303) is measured and minimized by adjusting the position of the condenser lens. These adjusted positions are stored as the first and second lens positions. The FFP of the laser beam (303) is measured while the condenser lens is being moved between these positions so as to make the BPP not more than a predetermined value.
    Type: Application
    Filed: November 27, 2017
    Publication date: November 21, 2019
    Inventors: RYO ISHIKAWA, MAKOTO RYUDO, DOUKEI NAGAYASU, HITOSHI NISHIMURA, JINGBO WANG, MASATOSHI NISHIO, HIDEAKI YAMAGUCHI, YOSHIAKI TAKENAKA, KIYOTAKA EIZUMI
  • Publication number: 20190351507
    Abstract: A laser processing head includes parallel plate (17) that shifts an optical axis of a laser beam to be emitted from a top to a bottom of body case (6) from a first optical axis to a second optical axis, parallel plate (19) that shift the optical axis of the laser beam from the second optical axis to a third optical axis, and body case (6) that accommodates holders (7 and 18) that respectively hold parallel plates (17 and 19). The laser processing head further includes a rotation mechanism that rotates holders (7 and 18) around a first rotary axis. Opening (7a) that a laser beam reflected by an incident surface of second parallel plate (19) passes through is formed in holder (7), and light receiving part (6a) that receives the laser beam having passed through opening (7a) is disposed in body case (6).
    Type: Application
    Filed: November 20, 2017
    Publication date: November 21, 2019
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Makoto RYUDO, Doukei NAGAYASU, Hitoshi NISHIMURA, Jingbo WANG, Masatoshi NISHIO, Hideaki YAMAGUCHI, Yoshiaki TAKENAKA, Kiyotaka EIZUMI, Ryo ISHIKAWA
  • Publication number: 20190293873
    Abstract: There is provided an optical axis alignment mechanism between the laser oscillator and the optical fiber. The laser oscillator emits laser light, which then emerges from the emission end of the optical fiber via the axis alignment mechanism. Part of the laser light is received on the light-receiving surface of the CCD camera of a laser light evaluator. Thus, the laser light evaluator acquires a light intensity distribution. The light intensity distribution is used by the optical axis alignment mechanism to align the axis of the laser oscillator with the axis of the optical fiber.
    Type: Application
    Filed: November 29, 2017
    Publication date: September 26, 2019
    Inventors: Kiyotaka EIZUMI, Makoto RYUDO, Doukei NAGAYASU, Hitoshi NISHIMURA, Jingbo WANG, Masatoshi NISHIO, Hideaki YAMAGUCHI, Yoshiaki TAKENAKA, Ryo ISHIKAWA
  • Publication number: 20190278026
    Abstract: A fiber coupling device (100) includes the following components: a wedge plate (102) for receiving light and refracting the light in a predetermined direction, a condenser lens (104) for collecting the light refracted by the wedge plate (102); and an optical fiber (107) having an incident surface for receiving the light collected by the condenser lens (104). The wedge plate (102) is held rotatable around the optical axis (200) of the light incident on the wedge plate (102). The light refracted by the wedge plate (102) and collected by the condenser lens (104) is incident on a different point on the incident surface depending on the rotation angle of the wedge plate (102).
    Type: Application
    Filed: May 30, 2019
    Publication date: September 12, 2019
    Inventors: MASATOSHI NISHIO, HITOSHI NISHIMURA, JINGBO WANG, MAKOTO RYUDO, DOUKEI NAGAYASU, HIDEAKI YAMAGUCHI, YOSHIAKI TAKENAKA, KIYOTAKA EIZUMI, RYO ISHIKAWA, YASUSHI MUKAI
  • Publication number: 20190271588
    Abstract: A laser device includes the following components: a laser resonator for emitting a laser beam; a condenser lens (21) for collecting the laser beam emitted from the laser resonator; an optical fiber (7) for transmitting the laser beam collected by the condenser lens (21); at least one light sensor (5) opposing a light receiving surface of the condenser lens (21) and outside the optical path of the laser beam, the at least one light sensor (5) detecting the amount of return light from the condenser lens (21); and a controller for determining the presence of an abnormality when the value of the amount detected by any of the at least one light sensor (5) is greater than the predetermined maximum threshold.
    Type: Application
    Filed: May 21, 2019
    Publication date: September 5, 2019
    Inventors: JINGBO WANG, DOUKEI NAGAYASU, YOSHIAKI TAKENAKA, HITOSHI NISHIMURA, MAKOTO RYUDO, KIYOTAKA EIZUMI, HIDEAKI YAMAGUCHI, RYO ISHIKAWA, MASATOSHI NISHIO, TAKASI KAKUTANI, YASUSHI MUKAI, MITSURU MUKAI, HIROYUKI HAYASHIKAWA
  • Publication number: 20190265180
    Abstract: Disclosed is a gas sensor including: a wiring board; a sensor element mounted on the wiring board and electrically connected to the wiring board by conductive members; a casing installing the sensor element and formed with inlet and outlet ports; and a pretreatment unit configured to perform pretreatment on a measurement gas and feed the measurement gas to the inlet port. The inlet and outlet ports are located outward and upward of the sensor element. A protrusion is provided protruding toward the inside of the casing so as to narrow a flow path from the inlet port to the outlet port. A height from the sensor element to a distal end of the protrusion is lower than heights from the sensor element to the inlet and outlet ports. The protrusion is disposed more inside than respective top portions of the conductive members without being in contact with the conductive members.
    Type: Application
    Filed: October 31, 2017
    Publication date: August 29, 2019
    Applicant: NGK SPARK PLUG CO., LTD
    Inventors: Tsuyoshi INOUE, Masatoshi UEKI, Takafumi SHICHIDA, Kenji NISHIO, Shigeya AOYAMA
  • Publication number: 20190262938
    Abstract: Laser processing device (1) includes: laser-beam switching apparatus (70) that switches between a first optical path and a second optical path as an optical path along which a laser beam is to travel, the first optical path including first fiber (11), the second optical path including second fiber (21) that has a core diameter that is larger than a core diameter of first fiber (11); and processing head (80) that illuminates a same processed point on workpiece (900) with a laser beam that has passed through the first optical path or the second optical path. When illumination with laser beam that has passed through the first optical path is performed for a predetermined period of time, laser-beam switching apparatus (70) switches from the first optical path to the second optical path.
    Type: Application
    Filed: May 10, 2019
    Publication date: August 29, 2019
    Inventors: DOUKEI NAGAYASU, HITOSHI NISHIMURA, JINGBO WANG, MAKOTO RYUDO, MASATOSHI NISHIO, HIDEAKI YAMAGUCHI, YOSHIAKI TAKENAKA, KIYOTAKA EIZUMI, RYO ISHIKAWA
  • Publication number: 20190227045
    Abstract: A gas sensor includes an adjustment unit having a concentration adjuster which changes the concentration of a particular gas component contained in measured gas introduced into a first chamber, a sensor unit having a second chamber for receiving the measured gas which has passed through the adjustment unit and a detector whose electrical characteristic changes with the concentration of the particular gas component, a single heater for heating the concentration adjuster and the detector, and a gas flow tube having the form of a pipe, at least partially running externally of the adjustment unit and of the sensor unit, and adapted to establish communication between the first chamber and the second chamber. The adjustment unit, the sensor unit, and the heater are united together in such a manner as to establish thermal coupling between the adjustment unit and the heater and thermal coupling between the sensor unit and the heater.
    Type: Application
    Filed: June 12, 2017
    Publication date: July 25, 2019
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Keizo FURUSAKI, Masatoshi UEKI, Kenji NISHIO, Tsuyoshi INOUE
  • Publication number: 20190064451
    Abstract: A fiber spatial coupling device includes a detachable process fiber, an optical system, and a main body. The process fiber guides laser light. The optical system collects the laser light into the process fiber. The main body holds the optical system, and has a supply port for supplying gas to a space between the process fiber and the optical system.
    Type: Application
    Filed: February 27, 2017
    Publication date: February 28, 2019
    Inventors: YOSHIAKI TAKENAKA, HITOSHI NISHIMURA, MAKOTO RYUDO, JINGBO WANG, MASATOSHI NISHIO, KIYOTAKA EIZUMI, HIDEAKI YAMAGUCHI, RYO ISHIKAWA, DOUKEI NAGAYASU
  • Publication number: 20190030641
    Abstract: A fiber coupling device includes a housing and a window provided in the housing. The fiber coupling device is configured to collectively guide plural laser beams to at least a first fiber, the plurality of laser beams each being emitted from a corresponding one of plural external laser light sources and entering through a laser beam inlet. The housing is configured such that the laser beams enter the housing from the laser beam inlet. The window is provided inside the housing and faces the laser beam inlet. The fiber coupling device is not required to detach when an optical axis is adjusted.
    Type: Application
    Filed: March 7, 2017
    Publication date: January 31, 2019
    Inventors: DOUKEI NAGAYASU, HITOSHI NISHIMURA, MAKOTO RYUDO, JINGBO WANG, YOSHIAKI TAKENAKA, KIYOTAKA EIZUMI, HIDEAKI YAMAGUCHI, RYO ISHIKAWA, MASATOSHI NISHIO