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).
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Publication number: 20240127635Abstract: A vehicle system includes: an in-vehicle device configured to communicate with a cloud server configured to manage vehicle data; and an expansion unit that is detachably attached to the in-vehicle device. The expansion unit includes: an input line for each communication protocol of input data; an output line for each communication protocol of output data; a connector for connecting the output line to the in-vehicle device; and a processing unit configured to perform processing on input data and cause the output line to output the output data. The in-vehicle device includes: a controller configured to generate the vehicle data based on the received output data; and a communication unit configured to transmit the vehicle data.Type: ApplicationFiled: December 27, 2023Publication date: April 18, 2024Inventors: Masatoshi KOMIYAMA, Keisuke NISHIO, Shigeru KAJIOKA, Makiko TAUCHI
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Publication number: 20240127637Abstract: By a data processing method or a communication system, input data is acquired, first processing that is processing of reducing a data amount of the input data is performed, second processing of converting data obtained by the first processing into data having a preset format configured to be handled by an in-vehicle device unit is performed, third processing of converting data obtained by the second processing into normalization data configured to be handled by a cloud server is performed, and vehicle data is provided to the cloud server.Type: ApplicationFiled: December 27, 2023Publication date: April 18, 2024Inventors: Masatoshi Komiyama, Keisuke Nishio, Shigeru Kajioka, Makiko Tauchi
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Patent number: 11896929Abstract: A laser device includes a laser oscillator, a dehumidifier, and a controller controlling an operation of the dehumidifier. The controller controls the dehumidifier such that the dew point inside the laser oscillator is lower than the first dew point when a monolayer or less of water molecules is adsorbed, or such that the dew point is equal to or higher than the second dew point when more than a monolayer of water molecules is adsorbed inside the laser oscillator, and is lower than the third dew point at which the dew condensation starts to occur inside the laser oscillator.Type: GrantFiled: November 24, 2020Date of Patent: February 13, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Makoto Ryudo, Masatoshi Nishio, Jingbo Wang
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Patent number: 11806812Abstract: A detector is configured to detect an output of a reflected beam from an exit end surface of a parallel plate. A determination unit is configured to determine that an abnormality occurs in the parallel plate when a detection value of the detector is smaller than a determination threshold.Type: GrantFiled: January 29, 2021Date of Patent: November 7, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masatoshi Nishio, Jingbo Wang, Hitoshi Nishimura, Motoki Morioka
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Publication number: 20230219166Abstract: Laser processing device (100) includes a laser oscillator that generates laser beam (LB), laser head (60) that irradiates a workpiece with laser beam (LB), and manipulator (40) on which laser head (60) is mounted. Manipulator (40) includes robot arm (41), arm tip shaft (J6) provided at a tip of robot arm (41) in a manner rotatable about axis (RA), and connector component (50) that connects arm tip shaft (J6) and laser head (60). Connector component (50) is provided with gauge attachment portion (51a) to which gauge (80) is attached removably. Gauge (80) has a reference point corresponding to the focal position of laser beam (LB).Type: ApplicationFiled: February 24, 2023Publication date: July 13, 2023Inventors: YOICHI FUKUMITSU, TAKAYASU OHARA, MASATOSHI NISHIO
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Patent number: 11565345Abstract: 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: GrantFiled: May 10, 2019Date of Patent: January 31, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Doukei Nagayasu, Hitoshi Nishimura, Jingbo Wang, Makoto Ryudo, Masatoshi Nishio, Hideaki Yamaguchi, Yoshiaki Takenaka, Kiyotaka Eizumi, Ryo Ishikawa
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Publication number: 20230001506Abstract: Laser processing head 10 includes housing 11 and a plurality of optical components. Housing 11 is provided with partition wall 11a, first and second light entrance ports 12a, 12b through which first and second laser beams A, B respectively enter, and light irradiation port 13. Laser processing head 10 includes first and second photodetectors 91b, 92a provided around first and second light entrance ports 12a, 12b, respectively. First photodetector 91b is disposed opposite to second photodetector 92a across partition wall 11a. First photodetector 91b receives light in the second wavelength band including the wavelength of second laser beam B, and second photodetector 92a receives light in the first wavelength band including the wavelength of first laser beam A.Type: ApplicationFiled: May 27, 2022Publication date: January 5, 2023Inventors: Hisayuki OGUCHI, Masatoshi NISHIO
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Publication number: 20220326478Abstract: Laser apparatus (10) includes at least: a laser oscillator that emits laser light (LB); reflection mirrors (M1), (M2) that are disposed on an optical path of laser light (LB) and change the optical path; actuators (ACT1), (ACT2) that are respectively coupled to reflection mirrors (M1), (M2) and displace reflection mirrors (M1), (M2); optical axis deviation detector (16) that is disposed to surround the optical path of laser light (LB) and detects an optical axis deviation of laser light (LB); and a controller that drives actuators (ACT1), (ACT2) on the basis of a detection result of optical axis deviation detector (16) to displace reflection mirrors (M1), (M2) and correct the optical axis deviation of laser light (LB).Type: ApplicationFiled: June 27, 2022Publication date: October 13, 2022Inventors: MASATOSHI NISHIO, MANABU NISHIHARA, YOSHINORI SASAKI
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Publication number: 20220297231Abstract: The control unit executes: a first execution step of executing a processing program to set a target value to a value defined by a processing program and performing feedback control on a driving current of a laser oscillator; a detection step of detecting an output fluctuation during execution of the first execution step; a specification step of specifying a physical quantity for which a measured value within a predetermined monitoring time before an occurrence timing of the output fluctuation does not satisfy a predetermined condition as an abnormal physical quantity from a plurality of physical quantities measured during execution of the first execution step; and a program update step of detecting appearance of a predetermined feature in an abnormal physical quantity as a fluctuation factor during execution of a post-update processing program, and updating the processing program to correct the driving current to reduce a difference between the laser output power and the target value compared with when the ouType: ApplicationFiled: June 10, 2022Publication date: September 22, 2022Inventors: Masatoshi NISHIO, Manabu NISHIHARA, Takamichi KOMATSU
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Patent number: 11333833Abstract: 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: GrantFiled: November 29, 2017Date of Patent: May 17, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kiyotaka Eizumi, Makoto Ryudo, Doukei Nagayasu, Hitoshi Nishimura, Jingbo Wang, Masatoshi Nishio, Hideaki Yamaguchi, Yoshiaki Takenaka, Ryo Ishikawa
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Publication number: 20220118557Abstract: Provided is a laser processing head including: shield holder (23) that has opening (23b) formed through shield holder (23) and optical sensor mounting hole (23c) formed in an inner peripheral surface of opening (23b); optical sensor (24) that has light receiving surface (24a) facing the inside of opening (23b) through optical sensor mounting hole (23c) and is attached to shield holder (23); and second protective glass (25) that has an outer peripheral surface facing light receiving surface (24a) of optical sensor (24) and is provided in opening (23b), second protective glass (25) transmitting a laser beam emitted by a laser oscillator to emit the laser beam toward a workpiece, and second protective glass (25) including reflective coating film (25a) formed in a region in the outer peripheral surface except an opposed region facing light receiving surface (24a) of optical sensor (24).Type: ApplicationFiled: November 19, 2021Publication date: April 21, 2022Inventors: JINGBO WANG, MASATOSHI NISHIO, KENZO SHIBATA, MANABU NISHIHARA
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Patent number: 11285564Abstract: 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: GrantFiled: November 20, 2017Date of Patent: March 29, 2022Assignee: 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
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Publication number: 20220088709Abstract: Laser welding device (1000) includes: laser oscillator (100); optical fiber (300) that transmits a laser beam (LB) generated in laser oscillator (100); laser beam emitting head (400) that is attached to the emission end of optical fiber (300) and emits laser beam (LB) toward workpiece (600); manipulator (500) with laser beam emitting head (400) attached thereto; and controller (200) that controls laser beam emitting head (400) so as to cause laser beam (LB) to be scanned three-dimensionally on the surface of workpiece (600). Controller (200) controls laser beam emitting head (400) so as to change a focal position of laser beam (LB) in accordance with a shape of a welded portion in workpiece (600).Type: ApplicationFiled: December 2, 2021Publication date: March 24, 2022Inventors: JINGBO WANG, MASATOSHI NISHIO, KENZO SHIBATA, MANABU NISHIHARA
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Publication number: 20220072661Abstract: A laser processing device includes a laser oscillator, an optical fiber that is a multi-clad fiber, a beam control mechanism provided in the laser oscillator, and a laser light emitting head attached to the optical fiber. The beam control mechanism includes a condenser lens, an optical path changing and holding mechanism that is disposed between the condenser lens and an incident end face of the optical fiber and changes an optical path of laser light LB, and a controller that controls an operation of the optical path changing and holding mechanism. The beam control mechanism controls a power distribution of the laser light by changing an incident position of the laser light on the incident end face.Type: ApplicationFiled: November 16, 2021Publication date: March 10, 2022Inventors: JINGBO WANG, MASATOSHI NISHIO, KENZO SHIBATA, MANABU NISHIHARA
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Publication number: 20220072655Abstract: A laser processing device includes a laser oscillator, first to third optical fibers, a beam control mechanism, and first to third laser light emitting heads attached to the first to third optical fibers, respectively. The beam control mechanism includes a condenser lens, first to third optical path changing mechanisms provided on an optical path of laser light LB after being transmitted through the condenser lens, and a controller that controls operations of the first to third optical path changing mechanisms. The beam control mechanism causes the laser light to be emitted from the first laser light emitting head via the selected first optical fiber.Type: ApplicationFiled: November 18, 2021Publication date: March 10, 2022Inventors: JINGBO WANG, MASATOSHI NISHIO, KENZO SHIBATA, MANABU NISHIHARA
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Publication number: 20220072662Abstract: A laser processing device includes a laser oscillator, optical fiber (90), beam control mechanism (20), and a laser light emitting head. The laser oscillator includes first and second laser oscillation units that generate first and second laser light rays (LB1) and (LB2), respectively. Beam control mechanism (20) includes optical path changing and holding mechanism (40) that is disposed between second condenser lens (32) that condenses second laser light (LB2) and dichroic mirror (33) that multiplexes first and second laser light rays (LB1) and (LB2) and causes the multiplexed light to be incident on optical fiber (90). Beam control mechanism (20) changes an incident position of second laser light (LB2) on optical fiber (90).Type: ApplicationFiled: November 16, 2021Publication date: March 10, 2022Inventors: JINGBO WANG, MASATOSHI NISHIO, KENZO SHIBATA, MANABU NISHIHARA
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Patent number: 11060905Abstract: A laser device includes: a laser resonator for emitting a laser beam; a condenser lens for collecting the laser beam emitted from the laser resonator; an optical fiber for transmitting the laser beam collected by the condenser lens; at least one light sensor opposing a light receiving surface of the condenser lens and outside an optical path of the laser beam, the at least one light sensor detecting an amount of return light from the condenser lens; and a controller for determining a presence of an abnormality when a value of the amount detected by the at least one light sensor is greater than a predetermined maximum threshold.Type: GrantFiled: May 21, 2019Date of Patent: July 13, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.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
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Publication number: 20210146481Abstract: A first detector detects an output of a reflected beam from an exit end surface of a first parallel plate. A determination unit determines that an abnormality occurs in the first parallel plate when the detection value of the first detector is smaller than a predetermined determination threshold.Type: ApplicationFiled: January 29, 2021Publication date: May 20, 2021Inventors: Masatoshi NISHIO, Jingbo WANG, Hitoshi NISHIMURA, Motoki MORIOKA
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Patent number: 10955618Abstract: 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: GrantFiled: May 30, 2019Date of Patent: March 23, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masatoshi Nishio, Hitoshi Nishimura, Jingbo Wang, Makoto Ryudo, Doukei Nagayasu, Hideaki Yamaguchi, Yoshiaki Takenaka, Kiyotaka Eizumi, Ryo Ishikawa, Yasushi Mukai
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Publication number: 20210077946Abstract: A laser device includes a laser oscillator, a dehumidifier, and a controller controlling an operation of the dehumidifier. The controller controls the dehumidifier such that the dew point inside the laser oscillator is lower than the first dew point when a monolayer or less of water molecules is adsorbed, or such that the dew point is equal to or higher than the second dew point when more than a monolayer of water molecules is adsorbed inside the laser oscillator, and is lower than the third dew point at which the dew condensation starts to occur inside the laser oscillator.Type: ApplicationFiled: November 24, 2020Publication date: March 18, 2021Inventors: Makoto RYUDO, Masatoshi NISHIO, Jingbo WANG