Patents by Inventor Takuro Izumi
Takuro Izumi 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: 12135299Abstract: An X-ray fluorescence analyzer is provided inside an analysis chamber covered with a housing with: an X-ray tube; an analyzing crystal for spectrally dispersing X-ray fluorescence emitted from a sample; an X-ray detector for detecting the X-ray fluorescence spectrally dispersed by the analyzing crystal; a warm air generator for generating warm air to maintain a temperature of the analyzing crystal at a target temperature; and a Peltier element for cooling the X-ray detector.Type: GrantFiled: October 15, 2020Date of Patent: November 5, 2024Assignee: SHIMADZU CORPORATIONInventors: Takuro Izumi, Tetsuya Yoneda
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Patent number: 11796491Abstract: A spectroscopic element and a detector are disposed along a circumference of one Rowland circle. The spectroscopic element has a spectral surface whose length, measured along the Rowland circle, is shorter than a length in the Rowland circle plane, of an irradiation surface irradiated with excitation beams emitted to a sample holder. The spectroscopic element and the sample holder are disposed to separate a group of characteristic X-rays within a common spectral range of the spectroscopic element.Type: GrantFiled: December 17, 2021Date of Patent: October 24, 2023Assignee: Shimadzu CorporationInventors: Shinji Miyauchi, Susumu Adachi, Asaka Kohiyama, Takuro Izumi, Takashi Omori, Kenji Sato
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Patent number: 11763957Abstract: A dispersive element is provided with a dispersive crystal for spectrally dispersing X-rays, a first support layer supporting the dispersive crystal, and a second support layer supporting the first support layer. The first support layer is greater in a thermal expansion coefficient than the dispersive crystal. The second support layer is smaller in a thermal expansion coefficient than the first support layer and is greater in rigidity than the first support layer.Type: GrantFiled: July 18, 2019Date of Patent: September 19, 2023Assignee: Shimadzu CorporationInventors: Takuro Izumi, Satoshi Tokuda, Susumu Adachi, Tetsuya Yoneda
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Publication number: 20230057233Abstract: An X-ray fluorescence analyzer is provided inside an analysis chamber covered with a housing with: an X-ray tube; an analyzing crystal for spectrally dispersing X-ray fluorescence emitted from a sample; an X-ray detector for detecting the X-ray fluorescence spectrally dispersed by the analyzing crystal; a warm air generator for generating warm air to maintain a temperature of the analyzing crystal at a target temperature; and a Peltier element for cooling the X-ray detector.Type: ApplicationFiled: October 15, 2020Publication date: February 23, 2023Inventors: Takuro IZUMI, Tetsuya YONEDA
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Publication number: 20220214291Abstract: A spectroscopic element and a detector are disposed along a circumference of one Rowland circle. The spectroscopic element has a spectral surface whose length, measured along the Rowland circle, is shorter than a length in the Rowland circle plane, of an irradiation surface irradiated with excitation beams emitted to a sample holder. The spectroscopic element and the sample holder are disposed to separate a group of characteristic X-rays within a common spectral range of the spectroscopic element.Type: ApplicationFiled: December 17, 2021Publication date: July 7, 2022Inventors: Shinji MIYAUCHI, Susumu ADACHI, Asaka KOHIYAMA, Takuro IZUMI, Takashi OMORI, Kenji SATO
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Patent number: 11378530Abstract: A chemical state analysis apparatus 10 includes: an excitation source 11 configured to irradiate an irradiation region A of a predetermined surface in a sample S containing a battery material with an excitation rays for generating characteristic X-rays of the battery material; an analyzing crystal 13 of a flat plate arranged so as to face the irradiation region A; a slit 12 arranged between the irradiation region A and the analyzing crystal 13, the slit being arranged in parallel to the irradiation region A and a predetermined crystal plane of the analyzing crystal 13; an X-ray linear sensor 15 in which linear detecting elements 151 each having a length in a direction parallel to the slit 12 are arranged in a direction perpendicular to the slit; a wavelength spectrum generation unit 161 configured to generate a wavelength spectrum based on intensity of the characteristic X-rays detected by the X-ray linear sensor 15; a peak wavelength determination unit 162 configured to determine a peak wavelength which is aType: GrantFiled: February 21, 2018Date of Patent: July 5, 2022Assignee: Shimadzu CorporationInventors: Kenji Sato, Satoshi Tokuda, Takuro Izumi, Tetsuya Yoneda, Susumu Adachi
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Publication number: 20220208408Abstract: A dispersive element is provided with a dispersive crystal for spectrally dispersing X-rays, a first support layer supporting the dispersive crystal, and a second support layer supporting the first support layer. The first support layer is greater in a thermal expansion coefficient than the dispersive crystal. The second support layer is smaller in a thermal expansion coefficient than the first support layer and is greater in rigidity than the first support layer.Type: ApplicationFiled: July 18, 2019Publication date: June 30, 2022Inventors: Takuro IZUMI, Satoshi TOKUDA, Susumu ADACHI, Tetsuya YONEDA
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Patent number: 11112371Abstract: An X-ray spectrometer is provided with: an excitation source configured to irradiate excitation rays onto an irradiation area of a sample, a diffraction member provided to face the irradiation area; a slit member provided between the irradiation area and the diffraction member, the slit member having a slit extending parallel to the irradiation area and a prescribed surface of the diffraction member; an X-ray linear sensor having a light-incident surface in which a plurality of detection elements are arranged in a direction perpendicular to a longitudinal direction of the slit; a first moving mechanism configured to change an angle between the sample surface and the prescribed surface, and/or a distance between the sample surface and the prescribed surface by moving the diffraction member within a plane perpendicular to the longitudinal direction; and a second moving mechanism configured to position the X-ray linear sensor on a path of characteristic X-rays passed through the slit and diffracted by the prescrType: GrantFiled: May 18, 2017Date of Patent: September 7, 2021Assignee: Shimadzu CorporationInventors: Kenji Sato, Takuro Izumi
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Publication number: 20200386696Abstract: A chemical state analysis apparatus 10 includes: an excitation source 11 configured to irradiate an irradiation region A of a predetermined surface in a sample S containing a battery material with an excitation rays for generating characteristic X-rays of the battery material; an analyzing crystal 13 of a flat plate arranged so as to face the irradiation region A; a slit 12 arranged between the irradiation region A and the analyzing crystal 13, the slit being arranged in parallel to the irradiation region A and a predetermined crystal plane of the analyzing crystal 13; an X-ray linear sensor 15 in which linear detecting elements 151 each having a length in a direction parallel to the slit 12 are arranged in a direction perpendicular to the slit; a wavelength spectrum generation unit 161 configured to generate a wavelength spectrum based on intensity of the characteristic X-rays detected by the X-ray linear sensor 15; a peak wavelength determination unit 162 configured to determine a peak wavelength which is aType: ApplicationFiled: February 21, 2018Publication date: December 10, 2020Inventors: Kenji SATO, Satoshi TOKUDA, Takuro IZUMI, Tetsuya YONEDA, Susumu ADACHI
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Patent number: 10859512Abstract: Provided is a radiation imaging apparatus capable of performing precise imaging without performing pre-imaging in the absence of a subject. According to the present invention, it is possible to provide a radiation imaging apparatus capable of performing precise imaging without performing pre-imaging in the absence of a subject immediately before. That is, the apparatus of the present invention is provided with a phase grating 5 provided with a subject area and a reference area. Both areas each have a predetermined pattern that absorbs radiation, but the patterns are different from each other. In this area, an image of the phase grating 5 is observed in a moire pattern of a long period.Type: GrantFiled: March 15, 2017Date of Patent: December 8, 2020Assignee: Shimadzu CorporationInventors: Koichi Tanabe, Toshinori Yoshimuta, Kenji Kimura, Hiroyuki Kishihara, Yukihisa Wada, Takuro Izumi, Taro Shirai, Takahiro Doki, Satoshi Sano, Akira Horiba
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Patent number: 10772592Abstract: This X-ray phase contrast imaging apparatus (100) includes an X-ray source (1) that radiates continuous X-rays, a first grating (3) that forms a self-image, a second grating (4), a detector (5) that detects the continuous X-rays, and a third grating (2) arranged between the detector (5) and the first grating 3. The first grating (3), the second grating (4), and the third grating (2) are arranged so as to satisfy conditions of predetermined formulas.Type: GrantFiled: July 10, 2017Date of Patent: September 15, 2020Assignees: Shimadzu Corporation, OSAKA UNIVERSITYInventors: Satoshi Sano, Koichi Tanabe, Toshinori Yoshimuta, Kenji Kimura, Hiroyuki Kishihara, Yukihisa Wada, Takuro Izumi, Taro Shirai, Takahiro Doki, Akira Horiba, Takayoshi Shimura, Heiji Watanabe, Takuji Hosoi
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Patent number: 10729398Abstract: An X-ray phase contrast imaging device of the present invention can change an arrangement pitch of slits related to a multi-slit and an arrangement pitch of phase shift sections related to a phase grating. A positional relationship among the multi-slit 3b, the phase grating, and an FPD is determined based on the arrangement pitch of the slits related to the multi-slit, the arrangement pitch of the phase shift sections related to the phase grating, and an arrangement pitch of detection elements related to the FPD. Among these arrangement pitches, by changing the arrangement pitch of the slits and the arrangement pitch of the phase shift sections, the present invention can change the positional relationship among the multi-slit, the phase grating, and the FPD.Type: GrantFiled: July 28, 2017Date of Patent: August 4, 2020Assignees: Shimadzu Corporation, Osaka UniversityInventors: Satoshi Sano, Koichi Tanabe, Toshinori Yoshimuta, Kenji Kimura, Hiroyuki Kishihara, Yukihisa Wada, Takuro Izumi, Taro Shirai, Takahiro Doki, Akira Horiba, Takayoshi Shimura, Heiji Watanabe, Takuji Hosoi
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Publication number: 20200225172Abstract: An X-ray spectrometer is provided with: an excitation source configured to irradiate excitation rays onto an irradiation area of a sample, a diffraction member provided to face the irradiation area; a slit member provided between the irradiation area and the diffraction member, the slit member having a slit extending parallel to the irradiation area and a prescribed surface of the diffraction member; an X-ray linear sensor having a light-incident surface in which a plurality of detection elements are arranged in a direction perpendicular to a longitudinal direction of the slit; a first moving mechanism configured to change an angle between the sample surface and the prescribed surface, and/or a distance between the sample surface and the prescribed surface by moving the diffraction member within a plane perpendicular to the longitudinal direction; and a second moving mechanism configured to position the X-ray linear sensor on a path of characteristic X-rays passed through the slit and diffracted by the prescrType: ApplicationFiled: May 18, 2017Publication date: July 16, 2020Inventors: Kenji SATO, Takuro IZUMI
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Publication number: 20200158662Abstract: This X-ray phase contrast imaging apparatus (100) includes an X-ray source (1), a first grating (3) that forms a self-image, a second grating (4), a detector (5) that detects X-rays, an adjustment mechanism (6), and a controller (7) that controls the adjustment mechanism (6) to adjust a misalignment of the first grating (3) or a misalignment of the second grating (4) based on Moire fringes detected by the detector (5).Type: ApplicationFiled: July 10, 2017Publication date: May 21, 2020Inventors: Akira HORIBA, Koichi TANABE, Toshinori YOSHIMUTA, Kenji KIMURA, Hiroyuki KISHIHARA, Yukihisa WADA, Takuro IZUMI, Taro SHIRAI, Takahiro DOKI, Satoshi SANO, Takayoshi SHIMURA, Heiji WATANABE, Takuji HOSOI
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Publication number: 20190343472Abstract: An X-ray phase contrast imaging device of the present invention can change an arrangement pitch of slits related to a multi-slit and an arrangement pitch of phase shift sections related to a phase grating. A positional relationship among the multi-slit 3b, the phase grating, and an FPD is determined based on the arrangement pitch of the slits related to the multi-slit, the arrangement pitch of the phase shift sections related to the phase grating, and an arrangement pitch of detection elements related to the FPD. Among these arrangement pitches, by changing the arrangement pitch of the slits and the arrangement pitch of the phase shift sections, the present invention can change the positional relationship among the multi-slit, the phase grating, and the FPD.Type: ApplicationFiled: July 28, 2017Publication date: November 14, 2019Inventors: Satoshi SANO, Koichi TANABE, Toshinori YOSHIMUTA, Kenji KIMURA, Hiroyuki KISHIHARA, Yukihisa WADA, Takuro IZUMI, Taro SHIRAI, Takahiro DOKI, Akira HORIBA, Takayoshi SHIMURA, Heiji WATANABE, Takuji HOSOI
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Publication number: 20190175126Abstract: Provided is a radiation imaging apparatus capable of performing precise imaging without performing pre-imaging in the absence of a subject. According to the present invention, it is possible to provide a radiation imaging apparatus capable of performing precise imaging without performing pre-imaging in the absence of a subject immediately before. That is, the apparatus of the present invention is provided with a phase grating 5 provided with a subject area and a reference area. Both areas each have a predetermined pattern that absorbs radiation, but the patterns are different from each other. In this area, an image of the phase grating 5 is observed in a moire pattern of a long period.Type: ApplicationFiled: March 15, 2017Publication date: June 13, 2019Inventors: Koichi TANABE, Toshinori YOSHIMUTA, Kenji KIMURA, Hiroyuki KISHIHARA, Yukihisa WADA, Takuro IZUMI, Taro SHIRAI, Takahiro DOKI, Satoshi SANO, Akira HORIBA
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Publication number: 20190167219Abstract: This X-ray phase contrast imaging apparatus (100) includes an X-ray source (1) that radiates continuous X-rays, a first grating (3) that forms a self-image, a second grating (4), a detector (5) that detects the continuous X-rays, and a third grating (2) arranged between the detector (5) and the first grating 3. The first grating (3), the second grating (4), and the third grating (2) are arranged so as to satisfy conditions of predetermined formulas.Type: ApplicationFiled: July 10, 2017Publication date: June 6, 2019Inventors: Satoshi SANO, Koichi TANABE, Toshinori YOSHIMUTA, Kenji KIMURA, Hiroyuki KISHIHARA, Yukihisa WADA, Takuro IZUMI, Taro SHIRAI, Takahiro DOKI, Akira HORIBA, Takayoshi SHIMURA, Heiji WATANABE, Takuji HOSOI
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Publication number: 20180368586Abstract: A cover member is a detachable cover member of seat. The cover member comprises at least a skin material and a lining material which is positioned on a back side of the skin material, the lining material is a multistory cloth which is bonded on the back side of the skin material through bonding agent, the cover member comprises bonded parts which the bonding agent is adhered and non-bonded parts which the bonding agent is not adhered between the the multistory cloth and the skin material. And, the multistory cloth may be a multistory knitting fabric which is knitted by polyester resin-made threads, the bonded part may be arranged in any one out of a net-likeshape, a dot-like-shape and a checkered pattern, the bonded part may be arranged irregularly et cetera.Type: ApplicationFiled: June 25, 2018Publication date: December 27, 2018Applicants: Honda Motor Co., Ltd., TB Kawashima Co., Ltd., SEIREN CO., LTD., Sage Automotive Interiors Co., Ltd.Inventors: Tomoyuki UEMURA, Tomoyo FUTAKAWAME, Kazuki KITAGAWA, Kentaro ISEKI, Hideki KONDO, Takuro IZUMI, Satoshi NISHIDA
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Publication number: 20170342657Abstract: Provided is a fabric having a novel design in which an uneven-surface design is partially formed by embossing. A polyurethane resin is applied to the surface of the fabric having, on the surface, a low fineness portion and a high fineness portion having a higher single fiber fineness than that of the low fineness portion, the fabric is dried; and embossing is performed on the surface of the fabric. By performing the embossing, while an uneven-surface design is not imparted to the high fineness portion by the embossing and a non-uneven-surface design portion 3 is formed, the uneven-surface design is imparted to the low fineness portion by the embossing and an uneven-surface design portion 2 is formed.Type: ApplicationFiled: December 10, 2015Publication date: November 30, 2017Inventors: Takuro IZUMI, Kazunori KAWAMURA
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Publication number: 20160254116Abstract: A metal including a passivation film 33a with a thickness of 10 nm or more is used as a metal electrode (a focus cup electrode 33) for generating an electric filed in a vacuum. The focus cup electrode 33 is made of stainless steel. The stainless steel is immersed in a treatment solution to perform coating (passivation treatment) . Accordingly, the passivation film 33a can be formed to be thicker than 10 nm. In this manner, the passivation film 33a is thicker than 10 nm. Therefore, the surface is uniform, and the adhesion is excellent, and the number of pinholes is small. Accordingly, the withstand voltage performance can be improved.Type: ApplicationFiled: November 19, 2014Publication date: September 1, 2016Inventors: Masaaki Ukita, Takuro Izumi, Yusuke Koga