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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Patent number: 11945179Abstract: The preset invention is to mold a laminate at a high accuracy by appropriately generating slippage between fiber sheets of the laminate at bending. A method for molding a laminate includes a step in which a plurality of gripping parts, which are arranged apart from each other, grip an area, wherein slippage between fiber sheets is prevented, in a plate-shaped laminate including a plurality of fiber sheets laminated each other; a step in which the plurality of gripping parts grip the area wherein slippage between the fiber sheets is prevented, while maintaining the state wherein relative moving of the area of the laminate and the gripping parts is prevented; and a step in which the gripping parts move so as to subject the laminate to bending.Type: GrantFiled: December 26, 2019Date of Patent: April 2, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Toshiki Kitazawa, Homare Yamato, Masahiko Shimizu, Hiromichi Akiyama, Akihiro Terasaka
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Patent number: 11932841Abstract: The present invention provides a cell cultivation module comprising a polymer porous film and a casing that has two or more culture medium inflow/outflow ports and accommodates the polymer porous film, wherein the polymer porous film is a polymer porous film with a three-layer structure, having a surface layer A and a surface layer B that have a plurality of holes, and a macrovoid layer that is sandwiched between the surface layer A and the surface layer B, the average hole diameter of the holes present in the surface layer A is smaller than the average hole diameter of the holes present in the surface layer B, the macrovoid layer has dividing walls that are connected to the surface layers A and B, and a plurality of macrovoids that are surrounded by the dividing walls and the surface layers A and B, the holes in the surface layers A and B are in communication with the macrovoids, and the polymer porous film is accommodated within the casing.Type: GrantFiled: July 25, 2017Date of Patent: March 19, 2024Assignee: UBE CORPORATIONInventors: Masahiko Hagihara, Shinsaku Fuse, Motohisa Shimizu, Yukinori Wada
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Publication number: 20240034010Abstract: A shaping method includes suturing, with a linear suture material, first end regions in a first predetermined direction of a plurality of sheet materials. The method includes fixing a second end region in the first predetermined direction of a laminated body to a first shaping method having a curved portion including at least one of a concave shape and a convex shape along a second predetermined direction in a state where the first predetermined direction coincides with the second predetermined direction. The method includes pressing a second shaping mold against the laminated body, which has been fixed to the first shaping mold in the fixing step, to shape the laminated body along the surface shape of the first shaping mold. The laminated body is shaped by applying a tension in the direction of pulling the first end region away from the second end region.Type: ApplicationFiled: March 11, 2021Publication date: February 1, 2024Inventors: Toshiki KITAZAWA, Masahiko SHIMIZU, Tomoya MURATA
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Patent number: 11884617Abstract: Provided is an acetic acid production method that enables smooth reduction and/or increase of acetic acid production with easy operation and can industrially efficiently, stably produce acetic acid with maintained quality even when the acetic acid production volume is changed. The acetic acid production method includes a carbonylation step in which methanol is reacted with carbon monoxide in a continuous system in the presence of a catalytic system, acetic acid, methyl acetate, and water, where the catalytic system includes a metal catalyst and methyl iodide. The carbonylation step employs two or more reactors disposed in parallel.Type: GrantFiled: July 2, 2018Date of Patent: January 30, 2024Assignee: DAICEL CORPORATIONInventor: Masahiko Shimizu
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Publication number: 20230398751Abstract: A manufacturing device manufactures a composite material structure by impregnating resin into a preform formed in a predetermined shape. The manufacturing device includes: a caul plate defining a space inside and covering the preform in the space; a supply part that supplies resin to the preform; a discharge part that discharges a gas from the space through a discharge hole in the caul plate; and a pressure intensifier that is provided in the space and between the caul plate and the preform and pressurizes the preform by a gas being discharged through the discharge part. The pressure intensifier has a web part facing surface facing the preform and a caul plate facing surface facing the caul plate, and through holes between the web part facing surface and the caul plate facing surface are in the pressure intensifier.Type: ApplicationFiled: January 17, 2023Publication date: December 14, 2023Inventors: Hiroshi TOKUTOMI, Masahiko SHIMIZU, Shoya MANO, Kentaro SHINDO, Takeshi FUJITA
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Patent number: 11812392Abstract: 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: GrantFiled: November 18, 2021Date of Patent: November 7, 2023Assignee: FUJITSU LIMITEDInventor: Masahiko Shimizu
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Publication number: 20230338248Abstract: To yield a high-purity 1,3-butylene glycol product that is colorless and odorless (or almost colorless and odorless) and unlikely to cause or increase coloration and odor over time. A 1,3-butylene glycol product containing 1,3-butylene glycol, wherein a sum of contents of acetaldehyde, crotonaldehyde, methyl vinyl ketone, acetone, formaldehyde, butylaldehyde, acetaldol, 1-hydroxy-3-butanone, 2-butanol and compounds represented by Formulas (1) to (10) below is less than 65 ppm.Type: ApplicationFiled: December 23, 2020Publication date: October 26, 2023Applicant: DAICEL CORPORATIONInventors: Katsuya MARUO, Satoshi KUSAKABE, Hirotoshi KITAMURA, Tomoko NISHIMURA, Masahiko SHIMIZU, Youji SUZUKI
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Publication number: 20230330913Abstract: A laminated body reference surface curved relative to the X-axis direction and overlapped on a shaping die reference surface and a laminated body bend surface intersecting the laminated body reference surface along the X-axis direction and overlapped on a shaping die bend surface are provided, the angle between the laminated body reference surface and the laminated body bend surface is larger than the angle between the shaping die reference surface and the shaping die bend surface. When a ridge where the shaping die reference surface and the shaping die bend surface intersect defines a shaping die edge, and a ridge where the laminated body reference surface and the laminated body bend surface intersect defines a laminated body edge, the laminated body edge is displaced from the shaping die edge on the shaping die reference surface with the laminated body reference surface being overlapped on the shaping die reference surface.Type: ApplicationFiled: December 14, 2022Publication date: October 19, 2023Inventors: Toshiki KITAZAWA, Masahiko SHIMIZU
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Patent number: 11773044Abstract: A method for producing acetic acid can improve the life of a silver-substituted ion exchange resin for removing organic iodine compounds in acetic acid. In a carbonylation process of a methanol method, an acetic acid distillation step has at least one distillation step of carrying out the purification of an acetic acid stream under conditions of a column bottom temperature of a distillation column of less than 175° C., a nickel base alloy or zirconium is used as a material of the distillation column in the distillation step, and as metal ion concentrations in a charging mixture of the distillation column in the distillation step, an iron ion concentration is less than 10,000 ppb by mass, a chromium ion concentration is less than 5,000 ppb by mass, a nickel ion concentration is less than 3,000 ppb by mass, and a molybdenum ion concentration is less than 2,000 ppb by mass.Type: GrantFiled: May 2, 2018Date of Patent: October 3, 2023Assignee: DAICEL CORPORATIONInventor: Masahiko Shimizu
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Publication number: 20230302767Abstract: A charge is formed of a plurality of layers of fiber-reinforced sheets. The charge includes an outermost-layer multi-stack member disposed at each end section in a layering direction; and an intermediate-layer multi-stack member disposed in an intermediate section in the layering direction. The outermost-layer multi-stack member includes a fiber-reinforced sheet in which fibers extend in an X-axis direction in which compression force or tensile force acts when the charge is subjected to bending processing; and has formed therein a plurality of incisions that penetrate in the layering direction and extend in a Y-axis direction. The plurality of incisions are disposed side by side at prescribed intervals in the Y-axis direction and the X-axis direction. An incision that penetrates in the layering direction and extends in the Y-axis direction is formed in the intermediate-layer multi-stack member. The incision extends roughly the entire region affected by compression force or tensile force.Type: ApplicationFiled: December 28, 2020Publication date: September 28, 2023Inventors: Toshiki KITAZAWA, Masahiko SHIMIZU
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Publication number: 20230294371Abstract: A composite material molding method for molding a composite material by integrating a first fiber base material which is formed in a plate shape and a second fiber base material. The method includes installing; in a recess in a first molding surface of a molding tool, the second fiber base material formed in a shape corresponding to the recess; fixing a first fiber-reinforced portion which is a part of a plurality of fiber reinforced sheets included in the first fiber base material to the first molding surface to cover the recess in which the second fiber base material is installed by the installation step; laying up a second fiber-reinforced portion on the first fiber-reinforced portion fixed by the fixing step; and molding the composite material by integrating and curing the first fiber base material and the second fiber base material installed in the recess using a resin material.Type: ApplicationFiled: March 10, 2021Publication date: September 21, 2023Inventors: Toshiki KITAZAWA, Masahiko SHIMIZU
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Patent number: 11760074Abstract: This mold for prepreg lamination includes a first surface only having a surface flat along one direction; second surfaces having a surface flat along the one direction and disposed at a predetermined angle with respect to the first surface; and a third surface with a cross-sectional shape, which is a surface yielded from a cut in an orthogonal direction to the one direction, that is an arc, and with one end side connected to the first surface and the other end side connected to the second surface. First bend sections having a protruding shape are formed on the second surface and the third surface and serve as boundaries, and one of the surfaces is slanted relative to the other surfaces. On the third surface, the diameter of the arc on the other surface becomes gradually smaller as further away from the first bend section along the one direction.Type: GrantFiled: April 23, 2019Date of Patent: September 19, 2023Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kazuki Ishida, Masahiko Shimizu, Kohei Muto, Akihito Suzuki, Kenji Murakami, Tsuyoshi Okawara
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Publication number: 20230249432Abstract: A multi-stack material includes a plurality of fiber-reinforced sheets that are laminated. The fiber-reinforced sheets include a first fiber-reinforced sheet in which a first fiber extends in a first direction and a second fiber-reinforced sheet in which a second fiber extends in a second direction that is different from the first direction. The first fiber-reinforced sheet has formed therein a plurality of first slits where the first fiber is cut such that each cut-up segment of the first fiber will have an equal length. The second fiber-reinforced sheet has formed therein a plurality of second slits where the second fiber is cut such that each cut-up segment of the second fiber will have an equal length. The first slits and the second slits are arranged so as to overlap with each other when viewed from the direction of lamination.Type: ApplicationFiled: December 28, 2020Publication date: August 10, 2023Inventors: Toshiki KITAZAWA, Masahiko SHIMIZU, Yoko TAGUCHI
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Publication number: 20230110534Abstract: A forming device includes: a forming jig extending along an axial direction; a forming die having a shape corresponding to a top part region and a wall part region of the forming jig; and a movement mechanism that moves the forming die so as to approach a bottom part region along a height direction HD. The forming die includes: a body part; a plate-shaped forming part that is attached to the body part so as to be swingable around a swing shaft; and a pressurization part that generates a pressurization force which causes a distal end part of the forming part to push a layered body against the wall part region when the forming die is moved by the movement mechanism so as to approach the bottom part region. In accordance with the distal end part, the part causes a contact surface to contact a region of the layered body.Type: ApplicationFiled: July 31, 2020Publication date: April 13, 2023Inventors: Homare YAMATO, Masahiko SHIMIZU, Shoya MANO, Toshiki KITAZAWA, Hideki HORIZONO
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Publication number: 20230098112Abstract: A high-purity 1,3-butylene glycol product is provided, which is colorless and odorless (or almost colorless and odorless), unlikely to cause coloration and odor over time, and, besides, unlikely to cause an acid concentration increase over time also in a state containing water. A 1,3-butylene glycol product in which at least one of a content of methyl vinyl ketone, a content of acetone, a content of butylaldehyde, a content of acetaldol, a content of a compound represented by Formula (1) below, a content of a compound represented by Formula (2) below, a content of a compound represented by Formula (3) below, and a total content of a compound represented by Formula (4) below and a compound represented by Formula (5) below, is less than 8 ppm.Type: ApplicationFiled: December 23, 2020Publication date: March 30, 2023Applicant: DAICEL CORPORATIONInventors: Masahiko SHIMIZU, Yasuteru KAJIKAWA, Yuuichirou HIRAI, Keisuke ONO, Midori UMEHARA, Yuki TESHIMA, Tetsuro NAKANISHI
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Publication number: 20230100087Abstract: A block is configured such that, when a composite material having a curved part in a cross-sectional shape cut by a plane orthogonal to an X-axis is deformed into a shape corresponding to a mold through pressure application while being kept in the mold, the block is brought into contact with the curved part of the composite material. The block includes: a first contact part which extends along the X-axis direction so as to be in contact with the curved part of the composite material; and a second contact part which is partially disposed along the X-axis direction, is in contact with the curved part of the composite material, and is of higher rigidity than the first contact part.Type: ApplicationFiled: June 17, 2020Publication date: March 30, 2023Inventors: Toshiki KITAZAWA, Hiroaki NAKAMURA, Masahiko SHIMIZU
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Publication number: 20230087989Abstract: A high-purity 1,3-butylene glycol product that is colorless and odorless (or almost colorless and odorless), unlikely to cause coloration and odor over time, and/or unlikely to cause an acid concentration increase over time when the product is left in a state containing water is provided. A 1,3-butylene glycol product containing 1,3-butylene glycol, wherein, after the 1,3-butylene glycol product has been kept at 180° C. for 3 hours in air atmosphere, at least one of contents of compounds represented by the following Formula (A) or (B) is less than 8 ppm. In the following formula, R1 to R4 are the same as or different from each other, and each of R1 to R4 is a hydrogen atom, an alkyl group which has from 1 to 4 carbon atoms and may be substituted with a hydroxy group, or an alkenyl group which has from 2 to 4 carbon atoms and may be substituted with a hydroxy group.Type: ApplicationFiled: December 23, 2020Publication date: March 23, 2023Applicant: DAICEL CORPORATIONInventors: Masahiko SHIMIZU, Yasuteru KAJIKAWA
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Publication number: 20230071796Abstract: A composite material structure body production method includes a layering step of layering a plurality of fiber sheets to form a layered body having a deforming portion extending in one direction, and a forming step of performing bend-forming along a deforming line contained in the deforming portion and extending in the one direction, thereby causing the deforming portion to deform. The layering step produces the layered body in such a manner that the shape of the deforming portion is a shape wherein: the cross-section shape in the one direction and the cross-section shape in an intersecting direction that intersects with the one direction are bent or curved; and the length in the intersecting direction changes along the one direction.Type: ApplicationFiled: July 6, 2020Publication date: March 9, 2023Inventors: Masahiko SHIMIZU, Toshiki KITAZAWA, Shoya MANO
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Publication number: 20230055591Abstract: Provided is a method capable of manufacturing 1,3-butylene glycol having a high potassium permanganate test value. A method for manufacturing 1,3-butylene glycol, which is a method for obtaining purified 1,3-butylene glycol from a crude reaction liquid containing 1,3-butylene glycol, the method including: a dehydration step of removing water by distillation; a high boiling substance removal step of removing a high boiling point component by distillation; and a product distillation step of obtaining purified 1,3-butylene glycol, wherein in the product distillation step, a product column is used in which a liquid feed having a 1,3-butylene glycol concentration of 97% or higher, 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, and a liquid concentrated with acetaldehyde and crotonaldehyde is distilled off from above a feed plate, and 1,3-butylene glycol is extracted from below the feed plate.Type: ApplicationFiled: December 23, 2020Publication date: February 23, 2023Applicant: DAICEL CORPORATIONInventors: Masahiko SHIMIZU, Yoshihisa MIZUTANI
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Patent number: 11584095Abstract: This flexible mandrel for molding a composite material containing a thermosetting resin includes: a main body containing a first material; and a thermally conductive layer containing a second material having a higher thermal conductivity than the first material, the thermally conductive layer being formed so as to cover at least a portion of the main body. The thermally conductive layer extends from a contacting surface of the flexible mandrel, which comes into contact with the composite material during molding, to a non-contacting surface which does not come into contact with the composite material.Type: GrantFiled: July 13, 2018Date of Patent: February 21, 2023Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Takayuki Shimizu, Akihisa Okuda, Ryota Ozaki, Shoya Mano, Masahiko Shimizu