Patents by Inventor Shinji Komatsuzaki
Shinji Komatsuzaki 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: 11879975Abstract: A measurement apparatus including: a laser that outputs a frequency-modulated laser beam; a branch that splits the frequency-modulated laser beam into a reference light and a measurement light; a beat signal generator that generates a beat signal by mixing the reference light and a reflected light that is reflected by radiating the measurement light onto an object to be measured; a frequency analyzer that frequency-analyzes the beat signal; a storage that stores a reference frequency signal which is a frequency signal obtained by converting a reference signal output by the beat signal generator in a state without the object to be measured; and calculation circuitry that calculates a difference between propagation distances of the reference light and the measurement light.Type: GrantFiled: August 9, 2021Date of Patent: January 23, 2024Assignee: Mitutoyo CorporationInventors: Shinji Komatsuzaki, Yoshimasa Suzuki, Tomotaka Takahashi
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Patent number: 11867809Abstract: A measurement apparatus includes a laser apparatus, a branching part that branches a frequency-modulated laser beam output by the laser apparatus into a reference light and a measurement light; a beat signal generation part that generates a beat signal by mixing a reflected light and the reference light, a conversion part that converts the beat signal into a digital signal at a first sampling rate and frequency-analyses it, an extraction part that extracts a signal component corresponding to a cavity frequency from the frequency-modulated laser beam, a digital filter that digitally filters the extracted signal component at a second sampling rate; and a calculation part that calculates a difference in a propagation distance between the reference light and the measurement light.Type: GrantFiled: July 6, 2020Date of Patent: January 9, 2024Assignee: Mitutoyo CorporationInventors: Yoshimasa Suzuki, Shinichi Hara, Shinji Komatsuzaki, Ryusuke Kato, Hiroki Ujihara, Masayuki Nara, Tomotaka Takahashi
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Patent number: 11531103Abstract: A measurement apparatus that includes a laser apparatus outputting a frequency-modulated laser beam, a branching part branching the frequency-modulated laser beam into a reference light and a measurement light, a beat signal generation part generating a beat signal by mixing the reference light and a reflected light that is reflected by radiating the measurement light onto an object to be measured, an extraction part extracting a signal component corresponding to a resonator frequency of the frequency-modulated laser beam, a clock signal generation part generating a first clock signal on the basis of the signal component, a conversion part converting the beat signal into a first digital signal using the first clock signal, and a calculation part calculating a difference in a propagation distance between the reference light and the measurement light on the basis of the first digital signal.Type: GrantFiled: June 3, 2020Date of Patent: December 20, 2022Assignee: Mitutoyo CorporationInventor: Shinji Komatsuzaki
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Patent number: 11415406Abstract: A laser apparatus, a measurement apparatus, and a measurement method are provided in which the laser apparatus outputs a frequency-modulated laser beam with a plurality of modes and includes: an optical cavity that has a gain medium for amplifying a light to be input, and an optical SSB modulator for shifting a frequency of the light amplified by the gain medium: and a control part that controls the optical SSB modulator to shift a frequency of a light to be input to the optical SSB modulator.Type: GrantFiled: December 17, 2020Date of Patent: August 16, 2022Assignees: Mitutoyo Corporation, 3D Innovation Co., LtdInventors: Shinji Komatsuzaki, Tomotaka Takahashi, Hiroki Ujihara
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Publication number: 20220057512Abstract: A measurement apparatus including: a laser that outputs a frequency-modulated laser beam; a branch that splits the frequency-modulated laser beam into a reference light and a measurement light; a beat signal generator that generates a beat signal by mixing the reference light and a reflected light that is reflected by radiating the measurement light onto an object to be measured; a frequency analyzer that frequency-analyzes the beat signal; a storage that stores a reference frequency signal which is a frequency signal obtained by converting a reference signal output by the beat signal generator in a state without the object to be measured; and calculation circuitry that calculates a difference between propagation distances of the reference light and the measurement light.Type: ApplicationFiled: August 9, 2021Publication date: February 24, 2022Applicant: Mitutoyo CorporationInventors: Shinji KOMATSUZAKI, Yoshimasa SUZUKI, Tomotaka TAKAHASHI
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Patent number: 11255969Abstract: A measurement apparatus including a laser apparatus; a branching part that branches the frequency modulated laser beam into a reference light and a measurement light; a beat signal generation part that generates a beat signal by mixing the reflected light reflected by irradiating the measurement light to an object to be measured; and a detection part that performs frequency analysis on first sampling data generated by sampling the beat signal at a first frequency and second sampling data generated by sampling the beat signal at a second frequency obtained by dividing a resonance frequency of the laser resonator by a positive integer, wherein the first frequency is a frequency equal to the resonance frequency or being a frequency equal to or more than twice the resonance frequency of the laser resonator and a measurement method are provided.Type: GrantFiled: August 23, 2019Date of Patent: February 22, 2022Assignee: Mitutoyo CorporationInventor: Shinji Komatsuzaki
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Publication number: 20210190474Abstract: A laser apparatus, a measurement apparatus, and a measurement method are provided in which the laser apparatus outputs a frequency-modulated laser beam with a plurality of modes and includes: an optical cavity that has a gain medium for amplifying a light to be input, and an optical SSB modulator for shifting a frequency of the light amplified by the gain medium: and a control part that controls the optical SSB modulator to shift a frequency of a light to be input to the optical SSB modulator.Type: ApplicationFiled: December 17, 2020Publication date: June 24, 2021Applicants: Mitutoyo Corporation, 3D Innovation Co., Ltd.Inventors: Shinji KOMATSUZAKI, Tomotaka TAKAHASHI, Hiroki UJIHARA
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Publication number: 20210011155Abstract: A measurement apparatus includes a laser apparatus, a branching part that branches a frequency-modulated laser beam output by the laser apparatus into a reference light and a measurement light; a beat signal generation part that generates a beat signal by mixing a reflected light and the reference light, a conversion part that converts the beat signal into a digital signal at a first sampling rate and frequency-analyses it, an extraction part that extracts a signal component corresponding to a cavity frequency from the frequency-modulated laser beam, a digital filter that digitally filters the extracted signal component at a second sampling rate; and a calculation part that calculates a difference in a propagation distance between the reference light and the measurement light.Type: ApplicationFiled: July 6, 2020Publication date: January 14, 2021Applicant: Mitutoyo CorporationInventors: Yoshimasa Suzuki, Shinichi Hara, Shinji Komatsuzaki, Ryusuke Kato, Hiroki Ujihara, Masayuki Nara, Tomotaka Takahashi
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Publication number: 20200379113Abstract: A measurement apparatus that includes a laser apparatus outputting a frequency-modulated laser beam, a branching part branching the frequency-modulated laser beam into a reference light and a measurement light, a beat signal generation part generating a beat signal by mixing the reference light and a reflected light that is reflected by radiating the measurement light onto an object to be measured, an extraction part extracting a signal component corresponding to a resonator frequency of the frequency-modulated laser beam, a clock signal generation part generating a first clock signal on the basis of the signal component, a conversion part converting the beat signal into a first digital signal using the first clock signal, and a calculation part calculating a difference in a propagation distance between the reference light and the measurement light on the basis of the first digital signal.Type: ApplicationFiled: June 3, 2020Publication date: December 3, 2020Applicant: Mitutoyo CorporationInventor: Shinji KOMATSUZAKI
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Publication number: 20200064477Abstract: A measurement apparatus including a laser apparatus; a branching part that branches the frequency modulated laser beam into a reference light and a measurement light; a beat signal generation part that generates a beat signal by mixing the reflected light reflected by irradiating the measurement light to an object to be measured; and a detection part that performs frequency analysis on first sampling data generated by sampling the beat signal at a first frequency and second sampling data generated by sampling the beat signal at a second frequency obtained by dividing a resonance frequency of the laser resonator by a positive integer, wherein the first frequency is a frequency equal to the resonance frequency or being a frequency equal to or more than twice the resonance frequency of the laser resonator and a measurement method are provided.Type: ApplicationFiled: August 23, 2019Publication date: February 27, 2020Applicant: Mitutoyo CorporationInventor: Shinji KOMATSUZAKI
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Patent number: 10050718Abstract: An optical communication module includes a module board housed in a casing, a VCSEL and a driving IC mounted on a mounting surface of the module board, a lens holder mounted on the mounting surface of the module board, a lens block held by the lens holder, a plurality of thermal vias passing through the module board, and a first fixing screw and a second fixing screw passing through the module board to be screwed into the casing so as to press a back surface of the module board against a bottom surface of the casing, and the first fixing screw and the second fixing screw are each arranged in a region between the plug connector and the lens holder and on either outer side of the lens holder.Type: GrantFiled: April 21, 2017Date of Patent: August 14, 2018Assignee: APRESIA SYSTEMS, LTD.Inventors: Yoshinori Sunaga, Masataka Sato, Kinya Yamazaki, Akira Ogura, Shinji Komatsuzaki
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Patent number: 9877388Abstract: A transmission module includes an electrically insulative substrate body, a first card edge connector provided at a first end of the substrate body, a second card edge connector provided at a second end of the substrate body, a circuit element mounted on the substrate body, a control element mounted on the substrate body and provided with a built-in memory which controls the circuit element, a first wiring pattern formed on the substrate body for connecting an electrode of the first card edge connector and the control element together, and a second wiring pattern formed on the substrate body for connecting an electrode of the second card edge connector and the control element together.Type: GrantFiled: June 26, 2015Date of Patent: January 23, 2018Assignee: HITACHI METALS, LTD.Inventors: Akira Ogura, Kinya Yamazaki, Masataka Sato, Shinji Komatsuzaki
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Publication number: 20170317763Abstract: An optical communication module includes a module board housed in a casing, a VCSEL and a driving IC mounted on a mounting surface of the module board, a lens holder mounted on the mounting surface of the module board, a lens block held by the lens holder, a plurality of thermal vias passing through the module board, and a first fixing screw and a second fixing screw passing through the module board to be screwed into the casing so as to press a back surface of the module board against a bottom surface of the casing, and the first fixing screw and the second fixing screw are each arranged in a region between the plug connector and the lens holder and on either outer side of the lens holder.Type: ApplicationFiled: April 21, 2017Publication date: November 2, 2017Inventors: Yoshinori SUNAGA, Masataka SATO, Kinya YAMAZAKI, Akira OGURA, Shinji KOMATSUZAKI
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Publication number: 20170219787Abstract: A characteristic of an optical element, especially a high frequency characteristic, installed in a communication module is improved. The communication module has: a first and second front surface side metal layers provided on a front surface of a module substrate and electrically separated from each other; a first and second rear surface side metal layers provided on a rear surface of the module substrate and electrically separated from each other; a first thermal via bored through the module substrate and thermally connecting the first front and rear surface side metal layers; and a second thermal via bored through the module substrate and thermally connecting the second front and rear surface side metal layers. A driving IC is mounted on and thermally connected to the first front surface side metal layer. A light emitting element is mounted on and thermally connected to the second front surface side metal layer.Type: ApplicationFiled: February 2, 2017Publication date: August 3, 2017Inventors: Akira OGURA, Kinya YAMAZAKI, Masataka SATO, Shinji KOMATSUZAKI
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Patent number: 9366833Abstract: An optical communication module is composed of a photoelectric conversion element to transduce an optical signal into an electrical signal or an electrical signal into an optical signal, an optical fiber including an end and being optically coupled to the photoelectric conversion element, a receiving member including an outer surface and receiving the end of the optical fiber and the photoelectric conversion element, and a plurality of electrodes protruded from the outer surface of the receiving member and aligned in a straight line. The optical fiber is drawn from the outer surface of the receiving member and in an oblique direction relative to a direction of the alignment of the plurality of electrodes.Type: GrantFiled: November 17, 2014Date of Patent: June 14, 2016Assignee: Hitachi Metals, Ltd.Inventors: Akira Ogura, Masataka Sato, Shinji Komatsuzaki, Kinya Yamazaki
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Publication number: 20160014891Abstract: A transmission module includes an electrically insulative substrate body, a first card edge connector provided at a first end of the substrate body, a second card edge connector provided at a second end of the substrate body, a circuit element mounted on the substrate body, a control element mounted on the substrate body and provided with a built-in memory which controls the circuit element, a first wiring pattern formed on the substrate body for connecting an electrode of the first card edge connector and the control element together, and a second wiring pattern formed on the substrate body for connecting an electrode of the second card edge connector and the control element together.Type: ApplicationFiled: June 26, 2015Publication date: January 14, 2016Inventors: Akira OGURA, Kinya YAMAZAKI, Masataka SATO, Shinji KOMATSUZAKI
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Publication number: 20150192745Abstract: An optical fiber connecter includes a first holding member including a positioning groove to position the optical fiber in a direction orthogonal to a longitudinal direction of the optical fiber, a second holding member including an accommodating groove including a substantially flat bottom surface and accommodating the optical fiber movably in the direction orthogonal to the longitudinal direction, the second holding member being configured such that the optical fiber is pressed against the positioning groove of the first holding member thereby, and a fixing member to fix the optical fiber to the accommodating groove of the second holding member at a position being away in a drawing direction of the optical fiber from an end of the positioning groove in the drawing direction.Type: ApplicationFiled: November 25, 2014Publication date: July 9, 2015Inventors: Kinya YAMAZAKI, Masataka SATO, Akira OGURA, Shinji KOMATSUZAKI
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Publication number: 20150160422Abstract: An optical communication module is composed of a photoelectric conversion element to transduce an optical signal into an electrical signal or an electrical signal into an optical signal, an optical fiber including an end and being optically coupled to the photoelectric conversion element, a receiving member including an outer surface and receiving the end of the optical fiber and the photoelectric conversion element, and a plurality of electrodes protruded from the outer surface of the receiving member and aligned in a straight line. The optical fiber is drawn from the outer surface of the receiving member and in an oblique direction relative to a direction of the alignment of the plurality of electrodes.Type: ApplicationFiled: November 17, 2014Publication date: June 11, 2015Applicant: HITACHI METALS, LTD.Inventors: Akira OGURA, Masataka SATO, Shinji KOMATSUZAKI, Kinya YAMAZAKI
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Patent number: 8730481Abstract: An optical ingredient-measuring apparatus is provided for measuring a concentration of an optically rotative substance. The apparatus includes a sensor main body which detects a phase difference between linear polarized light beams that propagate through an optical fiber loop in opposite directions, a circular polarized input component interposed in the middle of the optical fiber loop having first and second converters that convert the linear polarized light propagating through the optical fiber loop into left-hand and right-hand circular polarized light, and a concentration detector, installed in the sensor main body, which calculates the concentration of the substance in the sample based on the detected phase difference.Type: GrantFiled: February 1, 2012Date of Patent: May 20, 2014Assignee: Hitachi Metals, Ltd.Inventors: Tatsuya Kumagai, Shinji Komatsuzaki
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Publication number: 20120218555Abstract: An optical ingredient-measuring apparatus is provided for measuring a concentration of an optically rotative substance. The apparatus includes a sensor main body which detects a phase difference between linear polarized light beams that propagate through an optical fiber loop in opposite directions, a circular polarized input component interposed in the middle of the optical fiber loop having first and second converters that convert the linear polarized light propagating through the optical fiber loop into left-hand and right-hand circular polarized light, and a concentration detector, installed in the sensor main body, which calculates the concentration of the substance in the sample based on the detected phase difference.Type: ApplicationFiled: February 1, 2012Publication date: August 30, 2012Applicant: HITACHI CABLE, LTD.Inventors: Tatsuya KUMAGAI, Shinji KOMATSUZAKI