Patents by Inventor Tsutomu Tada
Tsutomu Tada 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: 11867646Abstract: Provided is a total reflection X-ray fluorescence spectrometer which has high analysis sensitivity and analysis speed. The total reflection X-ray fluorescence spectrometer includes: an X-ray source that has an electron beam focal point having an effective width in a direction parallel to a surface of a sample, and orthogonal to an X-ray irradiation direction, that is larger than a dimension in the irradiation direction; a reflective optic that has an effective width in the orthogonal direction that is larger than that of the electron beam focal point, and has a curved surface in the irradiation direction; and a plurality of detectors that are arranged in a row in the orthogonal direction, and are configured to measure intensities of fluorescent X-rays emitted from the sample irradiated with primary X-rays focused by the reflective optic.Type: GrantFiled: November 1, 2021Date of Patent: January 9, 2024Assignee: RIGAKU CORPORATIONInventors: Makoto Kambe, Kazuhiko Omote, Toshifumi Higuchi, Tsutomu Tada, Hajime Fujimura, Masahiro Nonoguchi, Licai Jiang, Boris Verman, Yuriy Platonov
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Publication number: 20230400423Abstract: Provided is a total reflection X-ray fluorescence spectrometer which has high analysis sensitivity and analysis speed. The total reflection X-ray fluorescence spectrometer includes: an X-ray source that has an electron beam focal point having an effective width in a direction parallel to a surface of a sample, and orthogonal to an X-ray irradiation direction, that is larger than a dimension in the irradiation direction; a reflective optic that has an effective width in the orthogonal direction that is larger than that of the electron beam focal point, and has a curved surface in the irradiation direction; and a plurality of detectors that are arranged in a row in the orthogonal direction, and are configured to measure intensities of fluorescent X-rays emitted from the sample irradiated with primary X-rays focused by the reflective optic.Type: ApplicationFiled: November 1, 2021Publication date: December 14, 2023Inventors: Makoto KAMBE, Kazuhiko OMOTE, Toshifumi HIGUCHI, Tsutomu TADA, Hajime FUJIMURA, Masahiro NONOGUCHI, Licai JIANG, Boris VERMAN, Yuriy PLATONOV
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Patent number: 10996349Abstract: Provided is an X-ray signal processor and an X-ray spectrometer that are configured to measure X-rays and, at the same time, accurately detect, with a simple method, the degree of performance degradation of a semiconductor detector. The X-ray signal processor includes: a semiconductor detector configured to generate a charge corresponding to energy of detected X-rays; a preamplifier configured to output a ramp voltage signal corresponding to the generated charge; a counter configured to count the X-rays for each voltage change amount due to the charge based on the ramp voltage signal; and a judgment part configured to determine whether the semiconductor detector has been degraded based on a first voltage change evaluation value corresponding to a total sum of products of the voltage change amount and an occurrence frequency thereof, and a second voltage change evaluation value corresponding to an increase amount of the ramp voltage signal.Type: GrantFiled: November 27, 2019Date of Patent: May 4, 2021Assignee: RIGAKU CORPORATIONInventor: Tsutomu Tada
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Patent number: 10914844Abstract: Provided are a signal processing device for X-ray analysis and an adjustment method for a signal processing device for X-ray analysis, which are capable of performing correction of a time constant with high precision and simply and quickly performing adjustment work required for performing the correction. The signal processing device for X-ray analysis includes: a differentiating circuit configured to use a first time constant to convert a signal output from an X-ray detector into an analog differential wave; an AD converter configured to convert the analog differential wave into a digital differential wave; a waveform shaping digital filter configured to use a second time constant to shape the digital differential wave; and a histogram generation unit configured to acquire a feature value of a shaped waveform based on pulse heights in two regions of the shaped waveform, to generate a histogram representing an acquisition frequency for each feature value.Type: GrantFiled: July 12, 2018Date of Patent: February 9, 2021Assignee: RIGAKU CORPORATIONInventors: Tsutomu Tada, Yukio Sako
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Publication number: 20200209408Abstract: Provided are a signal processing device for X-ray analysis and an adjustment method for a signal processing device for X-ray analysis, which are capable of performing correction of a time constant with high precision and simply and quickly performing adjustment work required for performing the correction. The signal processing device for X-ray analysis includes: a differentiating circuit configured to use a first time constant to convert a signal output from an X-ray detector into an analog differential wave; an AD converter configured to convert the analog differential wave into a digital differential wave; a waveform shaping digital filter configured to use a second time constant to shape the digital differential wave; and a histogram generation unit configured to acquire a feature value of a shaped waveform based on pulse heights in two regions of the shaped waveform, to generate a histogram representing an acquisition frequency for each feature value.Type: ApplicationFiled: July 12, 2018Publication date: July 2, 2020Inventors: Tsutomu TADA, Yukio SAKO
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Publication number: 20200166657Abstract: Provided is an X-ray signal processor and an X-ray spectrometer that are configured to measure X-rays and, at the same time, accurately detect, with a simple method, the degree of performance degradation of a semiconductor detector. The X-ray signal processor includes: a semiconductor detector configured to generate a charge corresponding to energy of detected X-rays; a preamplifier configured to output a ramp voltage signal corresponding to the generated charge; a counter configured to count the X-rays for each voltage change amount due to the charge based on the ramp voltage signal; and a judgment part configured to determine whether the semiconductor detector has been degraded based on a first voltage change evaluation value corresponding to a total sum of products of the voltage change amount and an occurrence frequency thereof, and a second voltage change evaluation value corresponding to an increase amount of the ramp voltage signal.Type: ApplicationFiled: November 27, 2019Publication date: May 28, 2020Inventor: Tsutomu TADA
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Patent number: 8905192Abstract: A lubricating-oil collection guide tool includes an oil-collection container; an oil funnel guiding lubricating oil into an oil passage at an axis end of a rotation axis; and an oil-passage member communicating the oil funnel and the oil-collection container. The oil-passage member includes a first passage member extending from the oil-collection container, and a second passage member extending from the oil funnel. While an insertion hole is formed in a lateral wall portion on one end side of the second passage member, one end portion of the first passage member is a cylindrical end portion. The cylindrical end portion is inserted into the insertion hole to move in and out in the axis line direction. The cylindrical end portion moves in a long axis direction relative to the insertion hole, and turns as a center of an axis line of the cylindrical end portion.Type: GrantFiled: November 21, 2011Date of Patent: December 9, 2014Assignees: Nifco Inc., Mazda Motor CorporationInventors: Kenichi Araki, Tsutomu Tada
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Patent number: 8650837Abstract: A product roll packaging apparatus includes a transfer unit for lifting and transferring a product roll from a conveyor, a wrapping unit for wrapping a protective sheet around the roll and attaching an end thereof with an adhesive tape, a protective sheet supply unit for cutting off the sheet from a sheet roll and supplying it along a protective sheet path line to the wrapping unit, and a tape supply unit for supplying the tape to the end of the cut sheet. The transfer unit includes a position correcting mechanism for establishing a reference line depending on the roll size, and bringing a reference end face of the roll into alignment with a vertical plane including the reference line. The protective sheet supply unit includes an edge position control mechanism for bringing a reference edge of the sheet into alignment with the reference line corresponding to the roll size.Type: GrantFiled: March 7, 2011Date of Patent: February 18, 2014Assignee: FUJIFILM CorporationInventors: Fumio Watanabe, Tsutomu Tada, Nobuyasu Akiyoshi, Yasushi Kikuchi, Toshiaki Kenmotsu
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Publication number: 20130283955Abstract: A lubricating-oil collection guide tool includes an oil-collection container; an oil funnel guiding lubricating oil into an oil passage at an axis end of a rotation axis; and an oil-passage member communicating the oil funnel and the oil-collection container. The oil-passage member includes a first passage member extending from the oil-collection container, and a second passage member extending from the oil funnel. While an insertion hole is formed in a lateral wall portion on one end side of the second passage member, one end portion of the first passage member is a cylindrical end portion. The cylindrical end portion is inserted into the insertion hole to move in and out in the axis line direction. The cylindrical end portion moves in a long axis direction relative to the insertion hole, and turns as a center of an axis line of the cylindrical end portion.Type: ApplicationFiled: November 21, 2011Publication date: October 31, 2013Inventors: Kenichi Araki, Tsutomu Tada
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Publication number: 20110239588Abstract: A product roll packaging apparatus includes a transfer unit for lifting and transferring a product roll from a conveyor, a wrapping unit for wrapping a protective sheet around the roll and attaching an end thereof with an adhesive tape, a protective sheet supply unit for cutting off the sheet from a sheet roll and supplying it along a protective sheet path line to the wrapping unit, and a tape supply unit for supplying the tape to the end of the cut sheet. The transfer unit includes a position correcting mechanism for establishing a reference line depending on the roll size, and bringing a reference end face of the roll into alignment with a vertical plane including the reference line. The protective sheet supply unit includes an edge position control mechanism for bringing a reference edge of the sheet into alignment with the reference line corresponding to the roll size.Type: ApplicationFiled: March 7, 2011Publication date: October 6, 2011Inventors: Fumio WATANABE, Tsutomu Tada, Nobuyasu Akiyoshi, Yasushi Kikuchi, Toshiaki Kenmotsu