Patents by Inventor Masahiko Shimizu
Masahiko Shimizu 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: 20230046811Abstract: Provided is a method capable of manufacturing high-purity 1,3-butylene glycol having a high potassium permanganate test value, a very low content of low boiling point components, and a high initial boiling point with a high recovery rate. A method for manufa.cturing 1,3-butylene glycol is a method for obtaining purified 1,3-butylene glycol from a crude reaction liquid containing 1,3-butylene glycol. In a dehydration column used in the dehydration step, a liquid feed containing 1,3-butylene glycol and water with an acetaldehyde content of 1000 ppm or lower and a crotonaldehyde content of 400 ppm or lower is distilled, and a liquid concentrated with a low boiling point component containing water is distilled off from above a feed plate; and in a product column used in the product distillation step, a 1,3-butylene glycol liquid feed having an acetaldehyde content of 500 ppm or lower and a crotonaldehyde content of 200 ppm or lower is distilled under a condition of a reflux ratio of higher than 0.1.Type: ApplicationFiled: December 23, 2020Publication date: February 16, 2023Applicant: DAICEL CORPORATIONInventors: Masahiko SHIMIZU, Ryuji SAITOU, Katsunori MAKIZAWA
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Publication number: 20230046204Abstract: A method for forming a laminate by stacking sheet materials containing reinforcing fibers includes a fixation step wherein a first region of the laminate in the length direction is fixed to a forming mold having a curved part which comprises at least either a convex shape or a concave shape in a predetermined direction; forming steps wherein the laminate is formed along the surface shape of the forming mold by pressing a second region of the laminate in the length direction, the first region of said laminate having been fixed in the fixation step, against the forming mold by means of a forming jig; and an installation step wherein a holding jig, which holds a state where the laminate is pressed against the curved part, is installed onto the curved part, while maintaining the state where the laminate is pressed against the forming mold by means of the forming jig.Type: ApplicationFiled: June 29, 2020Publication date: February 16, 2023Inventors: Toshiki KITAZAWA, Masahiko SHIMIZU
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Publication number: 20230048638Abstract: Provided is a method capable of manufacturing high-purity 1,3-butylene glycol having a high potassium permanganate test value, a very low content of low boiling point components, and a high initial boiling point with a high recovery rate. The method for manufacturing 1,3-butylene is a method for obtaining purified 1,3-butylene glycol from a crude reaction liquid containing 1,3-butylene glycol. In a dehydration column used in a dehydration step, a liquid feed containing 1,3 butylene glycol and water with an acetaldehyde content of 1000 ppm or lower and a crotonaldehyde content of 400 ppm or lower is distilled under a condition of a reflux ratio of higher than 0.3, and a liquid concentrated with a low boiling point component containing water is distilled off from above a feed tray.Type: ApplicationFiled: December 23, 2020Publication date: February 16, 2023Applicant: DAICEL CORPORATIONInventors: Masahiko SHIMIZU, Ryuji SAITOU, Katsunori MAKIZAWA
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Publication number: 20230039320Abstract: A composite structure manufacturing method comprising: a lamination step in which a plurality of fiber-reinforced resin sheets are laminated to form a plate-shaped laminate; a pressing deformation step in which a third roller or similar, which rolls along a plate surface of the laminate, is used to press the plate surface of the laminate, thereby forming a recessed section or a protruding section in a prescribed section of the laminate; a short direction deformation step in which, after the pressing deformation step, the laminate is deformed in the short direction to make the long direction cross-section into a prescribed shape; and a long direction deformation step in which, after the pressing deformation step, the laminate is deformed in the long direction to make the short direction cross-section into a prescribed shape.Type: ApplicationFiled: January 17, 2020Publication date: February 9, 2023Inventors: Homare YAMATO, Masahiko SHIMIZU, Toshiki KITAZAWA, Shoya MANO, Akihiro TERASAKA
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Publication number: 20230033469Abstract: Provided is a method capable of yielding high-purity 1,3-butylene glycol having a very low content of a high boiling point component and a low dry point, with a high recovery ratio. A method for producing 1,3-butylene glycol to yield purified 1,3-butylene glycol from a reaction crude liquid containing 1,3-butylene glycol, in which, in a high boiling point component removal column for use in the removing a high boiling point component, a charged liquid containing 1,3 -butylene glycol is distilled under conditions that (i) a reflux ratio is greater than 0.02 in a case where a concentration of 1,3-butylene glycol in the charged liquid is 95% or less, or a reflux ratio is greater than 0.01 in a case where the concentration of 1,3-butylene glycol in the charged liquid is greater than 95%, and (ii) a bottom ratio of less than 30 wt.Type: ApplicationFiled: December 23, 2020Publication date: February 2, 2023Applicant: DAICEL CORPORATIONInventors: Masahiko SHIMIZU, Satoshi KUSAKABE, Ryuji SAITOU
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Publication number: 20230035233Abstract: Provided is a method capable of yielding high-purity 1,3-butylene glycol having a very low content of a low boiling point component and a high initial boiling point, with a high recovery ratio. A reaction crude liquid containing 1,3-butylene glycol is subjected to product distillation to yield purified 1,3-butylene glycol, through dehydration including removing water by distillation and performing high boiling point component removal including removing a high boiling point component by distillation. A method for producing 1,3 butylene glycol, the method including: distilling a charged liquid having a water content of 1.2 wt.% or less in a product column for use in the product distillation under a condition of a reflux ratio of greater than 0.1; distilling off a liquid in which a low boiling point component is concentrated from above a charging plate; and extracting 1,3-butylene glycol from below the charging plate.Type: ApplicationFiled: December 23, 2020Publication date: February 2, 2023Applicant: DAICEL CORPORATIONInventor: Masahiko SHIMIZU
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Publication number: 20220410319Abstract: A laser processing method for cutting a base material, including stacked first and second layers having different thermal expansion coefficients, includes radiating laser light onto a first inter-layer part under prescribed first inter-layer conditions, to cut the first inter-layer part, which extends from a position in the vicinity of a layer boundary inward of the surface of the second layer, through the layer boundary between the second layer and the first layer, to a position in the vicinity of a layer boundary inward of said one surface of the first layer, and radiating the laser light onto a part of the first layer inward from the position in the vicinity of the layer boundary, under first conditions, to cut the first layer, wherein the first inter-layer condition is a condition under which the amount of heat input by the laser light is less than under the first condition.Type: ApplicationFiled: November 22, 2019Publication date: December 29, 2022Inventors: Saneyuki GOYA, Akiko INOUE, Ryuichi NARITA, Akihisa OKUDA, Ryota OZAKI, Masahiko SHIMIZU, Hiroki MORI
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Publication number: 20220395930Abstract: In this laser cutting method and laser cutting device with which a base material is cut by irradiating, with laser, a surface of a base material formed of a composite material, an irradiation step for swinging the laser in a tolerance direction crossing the length direction of a cutting line while moving the laser relative to the base material along the length direction of the cutting line for cutting the base material is repeatedly performed on the cutting line, thereby cutting the base material, and in the irradiation step, a swing width in the width direction of the laser is decreased as the depth in the depth direction from the surface of the base material toward the rear surface increases.Type: ApplicationFiled: November 15, 2019Publication date: December 15, 2022Inventors: Saneyuki GOYA, Ryuichi NARITA, Akiko INOUE, Hiroki MORI, Ryota OZAKI, Masahiko SHIMIZU
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Publication number: 20220394846Abstract: A device includes an elastic base, a device body provided on the base, a wiring line provided on the base, a coupling member coupled to the wiring line, and an electrically conductive adhesive layer provided between the wiring line and the coupling member. The wiring line extends from the electrically conductive adhesive layer to the device body. The wiring line has a wiring portion overlapping with the electrically conductive adhesive layer. The degree of polymerization of the electrically conductive adhesive layer decreases in the extending direction of the wiring portion.Type: ApplicationFiled: October 13, 2020Publication date: December 8, 2022Inventors: HIROSHI KAWAI, TAIZO NISHIMURA, MASAHIKO SHIMIZU, TAKAYUKI TANAKA, NAOHIRO TAKAHASHI
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Publication number: 20220371291Abstract: The purpose of the present invention is to further enhance the strength of a manufactured composite structure by further suppressing the occurrence of wrinkling. A method for manufacturing a composite structure, the method comprising: a lamination step for layering a plurality of fiber sheets and molding a plate-form laminate; a forming step for forming a recess formed by a curved surface in a prescribed portion of the laminate; a short-direction deformation step for deforming the laminate in the short direction thereof after the forming step to configure a long-direction cross-section of the laminate in a prescribed shape; and a long-direction deformation step for deforming the laminate in the long direction after the forming step, so that the recess formed in the forming step deforms, to configure a short-direction cross section in a prescribed shape.Type: ApplicationFiled: January 17, 2020Publication date: November 24, 2022Inventors: Masahiko SHIMIZU, Homare YAMATO, Toshiki KITAZAWA
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Publication number: 20220354760Abstract: Provided is a method capable of manufacturing high-purity 1,3-butylene glycol having a high potassium permanganate test value, a very low content of low boiling point components, and a high initial boiling point with a high recovery rate. The method for manufacturing 1,3-butylene is a method for obtaining purified 1,3-butylene glycol from a crude reaction liquid containing 1,3-butylene glycol. In a dehydration column used in a dehydration step, a liquid feed containing 1,3-butylene glycol and water with an acetaldehyde content of 1000 ppm or lower and a crotonaldehyde content of 400 ppm or lower is distilled under a condition of a reflux ratio of higher than 0.3, and a liquid concentrated with a low boiling point component containing water is distilled off from above a feed tray.Type: ApplicationFiled: December 23, 2020Publication date: November 10, 2022Applicant: DAICEL CORPORATIONInventors: Masahiko SHIMIZU, Ryuji SAITOU, Katsunori MAKIZAWA
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Patent number: 11485698Abstract: Provided is a method capable of industrially efficiently producing acetic acid yielding a good potassium permanganate test result, without costing much. In the acetic acid production method, (1) by-produced acetaldehyde is industrially advantageously removed from a process stream, and (2) a crotonaldehyde concentration in an acetic acid stream from a light ends column is controlled to a specific level or lower, and/or a reflux ratio at a second distillation column is controlled to 0.1 or more. In addition, (3) the method includes the step of subjecting at least one of an aqueous phase and an organic phase of a light ends column overhead condensate to distillation in a crotonaldehyde-removing column; the light ends column is operated at a reflux ratio of 2 or more (when the aqueous phase is refluxed); and the crotonaldehyde-removing column is operated so as to meet a specific condition(s).Type: GrantFiled: July 25, 2018Date of Patent: November 1, 2022Assignee: DAICEL CORPORATIONInventor: Masahiko Shimizu
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Publication number: 20220339853Abstract: A forming method according to the present disclosure includes a laminating step for forming an intermediate formed article by supplying and laminating a fibrous sheet onto forming surfaces of a forming die for forming the intermediate formed article; and a bending process step for performing a bending process on the intermediate formed article, which is laminated on the forming surfaces and has a shape that corresponds to the forming die, to yield a formed article. The forming surfaces have shapes that correspond to the intermediate formed article to be formed. The second forming surface is bent with respect to the first forming surface among the forming surfaces, and the angle formed by the first forming surface and the second forming surface is greater than the bending angle of the cross-section of the formed article to be formed and less than 180 degrees.Type: ApplicationFiled: November 26, 2019Publication date: October 27, 2022Inventors: Toshiki KITAZAWA, Masahiko SHIMIZU, Shoya MANO
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Publication number: 20220288874Abstract: A method includes laminating a plurality of fiber reinforced sheets to create a charge; and shaping, by pressing, the charge created in the lamination step into a shaping mold. The charge has a predetermined angle layer including the plurality of fiber reinforced sheets, the fiber direction of which is aligned in a single direction. The predetermined angle layer has n-number of constitutional layers (n?2) ranging from a first constitutional layer to an n-th constitutional layer each including the plurality of fiber reinforced sheets, wherein the n-th constitutional layer is laminated on an (n-1)-th constitutional layer, the plurality of fiber reinforced sheets in each of the constitutional layers have dividing portions which are along the fiber direction and which are disposed one by one at respective positions within a predetermined range along the fiber direction in the predetermined angle layer.Type: ApplicationFiled: September 26, 2019Publication date: September 15, 2022Inventors: Masahiko SHIMIZU, Shoya MANO, Toshiki KITAZAWA, Homare YAMATO, Kenichi KAWAMURA, Yoko TAGUCHI
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Publication number: 20220279458Abstract: A wireless communication apparatus outputs first and second beams, based on a weighting vector representing gain and/or phase weighting. The apparatus derives a weighting vector corresponding to a maximum eigen value of a matrix obtained by subtracting, from a first matrix representing a main lobe output power of the first beam, a matrix obtained by multiplying a second matrix representing a side lobe output power of the first beam to a reduction ratio for reducing the side lobe output power of the first beam interfering with a main lobe of the second beam. The apparatus determines whether or not a power ratio of the main lobe output power of the first beam with respect to the side lobe output power of the first beam is greater than a maximum SIRmax, and extracts the weighting vector when the power ratio is not larger than the maximum SIRmax.Type: ApplicationFiled: November 18, 2021Publication date: September 1, 2022Applicant: FUJITSU LIMITEDInventor: Masahiko Shimizu
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Publication number: 20220231062Abstract: Provided is an imaging device that enables formation of a film over the entirety of a film formation region, a method of producing the imaging device, an imaging apparatus, and an electronic apparatus. The imaging device includes a sensor and a glass sheet bonded to a front surface of the sensor. The glass sheet is provided with a recess in a peripheral portion thereof that is outside a film formation region thereof over which an inorganic film is to be formed. The recess corresponds to a claw provided on a periphery of an opening of a tray for a vapor deposition process for the inorganic film. This allows the entirety of the film formation region of the glass sheet to be exposed from the opening when the imaging device is set in the opening, and thus enables formation of the inorganic film over the entirety of the film formation region.Type: ApplicationFiled: April 6, 2022Publication date: July 21, 2022Inventors: SHOGO ONO, MASAHIKO SHIMIZU
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Publication number: 20220203480Abstract: This laser processing device is provided with a laser radiating unit which forms a processed groove extending in a scanning direction on a workpiece, by subjecting the workpiece to laser processing while scanning the surface of the workpiece, and a nozzle portion which has a plurality of ejection holes arranged side by side in the scanning direction, and which ejects a gas toward the processed groove from each of the ejection holes. With this laser processing device, since a plume is eliminated by ejecting gas into the processed groove by means of the nozzle portion, the formation of a heat affected layer by the plume can be suppressed to an even greater extent.Type: ApplicationFiled: July 31, 2019Publication date: June 30, 2022Inventors: Kazuhiro YOSHIDA, Yoshinao KOMATSU, Saneyuki GOYA, Akiko INOUE, Yasuyuki FUJIYA, Ryuichi NARITA, Masahiko SHIMIZU
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Publication number: 20220168848Abstract: A laser machining device includes: a laser irradiation unit that forms a machining groove that has one end opening to an end section of a workpiece and the other end thereof closed, as a result of scanning a workpiece surface from an end section of the workpiece and laser machining the workpiece; and a nozzle unit that sprays a gas across an irradiation zone of the workpiece surface created by the laser irradiation unit. The nozzle unit is configured so as to increase the flowrate of the gas supplied to the irradiation zone, from one end to the other end of the machining groove.Type: ApplicationFiled: June 28, 2019Publication date: June 2, 2022Inventors: Kazuhiro YOSHIDA, Yoshinao KOMATSU, Saneyuki GOYA, Akiko INOUE, Yasuyuki FUJIYA, Ryuichi NARITA, Masahiko SHIMIZU, Ryota OZAKI, Yuki KANI
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Publication number: 20220143935Abstract: A composite material molding method includes a first disposition step for disposing a prepreg on a jig molding surface of a molding jig; a first sealing step for airtightly sealing the prepreg by covering the prepreg with a first resin bag; a second disposition step for disposing a breather so as to cover the first resin bag; a second sealing step for airtightly sealing the breather so as to cover the breather with a second resin bag; a first depressurization step for depressurizing a first space sealed by the first resin bag; a second depressurization step for depressurizing a second space sealed by the second resin bag; and a heat-curing step for heat-curing the prepreg by supplying the internal space of a pressure vessel with a steam with a predetermined temperature and a predetermined pressure.Type: ApplicationFiled: June 6, 2019Publication date: May 12, 2022Inventors: Yuichi YUI, Akihisa OKUDA, Masahiko SHIMIZU, Yuki KANI, Akihiro TERASAKA
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Patent number: 11315971Abstract: Provided are an imaging device that enables formation of a film over the entirety of a film formation region, a method of producing the imaging device, an imaging apparatus, and an electronic apparatus. The imaging device includes a sensor and a glass sheet bonded to a front surface of the sensor. The glass sheet includes a recess in a peripheral portion that is outside a film formation region over which an inorganic film is to be formed. The recess corresponds to a claw on a periphery of an opening of a tray for a vapor deposition process for the inorganic film. This allows the entirety of the film formation region of the glass sheet to be exposed from the opening when the imaging device is set in the opening, and thus enables formation of the inorganic film over the entirety of the film formation region.Type: GrantFiled: August 29, 2018Date of Patent: April 26, 2022Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventors: Shogo Ono, Masahiko Shimizu