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).

  • Patent number: 11148326
    Abstract: A flexible mandrel for molding a composite material containing a thermosetting resin includes: a body including a contact surface configured to come into contact with the composite material during molding and a non-contact surface configured not to come into contact with the composite material during molding; and at least one hole formed from the non-contact surface toward an inside of the body.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: October 19, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takayuki Shimizu, Akihisa Okuda, Ryota Ozaki, Shoya Mano, Masahiko Shimizu
  • Patent number: 11118546
    Abstract: An intake passage includes: a main intake passage provided with a throttle valve and extending from one side toward the other side along a cylinder bank; and a bypass passage provided with an EGR valve and connected to a part of the main intake passage located toward the other side with respect to the throttle valve. The bypass passage extends from a branch of the main intake passage toward the one side and then turns back and extends toward the other side. The EGR valve is located in a part of the bypass passage extending toward the other side and overlapping with a part extending from the branch to the one side.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: September 14, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Ken Yoshida, Masahiko Tanisho, Nozomu Hachiya, Kouichi Shimizu, Manabu Sugimoto
  • Publication number: 20210237374
    Abstract: Manufacturing structure using a composite material includes: a tapering step for forming a first tapered surface on a first stiffener in an uncured state; a bending step for bending the stiffener such that a second surface is on the inner side; an arranging step for arranging the first stiffener and a skin at prescribed positions; a vacuum suctioning step for vacuum suctioning the first stiffener and the skin; and a bonding step for curing the first stiffener to bond the first stiffener and the skin. In the tapering step, the angle formed between the first tapered surface and the second surface is an acute angle. In the vacuum suctioning step, the first tapered surface is brought into contact with the skin while maintaining contact between the first surface and the skin, and the first stiffener is deformed so that a second tapered surface is formed on the second surface.
    Type: Application
    Filed: August 29, 2019
    Publication date: August 5, 2021
    Inventors: Shoya MANO, Masahiko SHIMIZU, Ryota OZAKI, Akihito SUZUKI, Tsuyoshi OKAWARA
  • Publication number: 20210221763
    Abstract: Provided is a method for producing acetic acid that is capable of greatly improving the life of a silver-substituted ion exchange resin (IER) for removing organic iodine compounds in acetic acid. With the method for producing acetic acid according to the present invention, 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: Application
    Filed: May 2, 2018
    Publication date: July 22, 2021
    Applicant: DAICEL CORPORATION
    Inventor: Masahiko SHIMIZU
  • Publication number: 20210170637
    Abstract: 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: Application
    Filed: April 23, 2019
    Publication date: June 10, 2021
    Inventors: Kazuki ISHIDA, Masahiko SHIMIZU, Kohei MUTO, Akihito SUZUKI, Kenji MURAKAMI, Tsuyoshi OKAWARA
  • Publication number: 20210162637
    Abstract: In the present invention, it is possible to reduce the occurrence of a local deformation in a plate material during solidification and shrinkage of an injection molding material. The composite material injection molding method includes an injection step of injecting an injection molding material containing reinforcing fibers onto one surface of a plate material; and a molding step of solidifying the injection molding material to mold a frame part so as to surround the outer periphery of the plate material and to mold a rib so as to define an inner peripheral-side space on the inner peripheral side of the frame part. In the injection step, the injection molding material is injected so that a weld part at which the injection molding material converges is formed in a region not overlapping the plate material of the frame part.
    Type: Application
    Filed: April 18, 2019
    Publication date: June 3, 2021
    Inventors: Yasunori WATANABE, Ryota OZAKI, Masahiko SHIMIZU, Shoya MANO, Yusuke KAWAMURA, Ryoji OKABE, Kosuke IKEDA, Kiichi NISHIGUCHI
  • Patent number: 11014868
    Abstract: A method for producing acetic acid includes subjecting an acetic acid solution to an acetic anhydride decreasing treatment. The acetic acid solution is present typically in, or downstream from, a distillation column (5) of acetic acid production equipment (X), includes acetic acid in a concentration of 90 mass percent or more, acetic anhydride, and water, and is in such a state that an equilibrium concentration of acetic anhydride is higher than an acetic anhydride concentration. The acetic anhydride decreasing treatment includes at least one of water concentration increasing and temperature lowering so as to bring the acetic acid solution into such a state that the equilibrium concentration of acetic anhydride is lower than the acetic anhydride concentration. The acetic acid production method is suitable for yielding a high-purity acetic acid product.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: May 25, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Masahiko Shimizu, Ryuji Saito, Hiroyuki Miura
  • Publication number: 20210122694
    Abstract: Provided is a method for producing acetic acid, which includes an absorption step that suppresses corrosion inside a distillation column when a solution after that has absorbed a target component is subjected to distillation. The method for producing acetic acid according to an embodiment of the present invention includes an absorption step of supplying, to an absorption column, at least a portion of offgas generated in an acetic acid production process, bringing the offgas into contact with an absorbent containing one or more liquids selected from the group consisting of a hydrocarbon, an ester of a carboxylic acid having 3 or more carbon atoms, an ester of a carboxylic acid and an alcohol having 2 or more carbon atoms, and an ether, to allow the absorbent to absorb an iodine compound in the offgas, and separating into a gas component having a lower iodine compound concentration than the offgas and a solution containing the absorbent and the iodine compound.
    Type: Application
    Filed: July 2, 2018
    Publication date: April 29, 2021
    Applicant: DAICEL CORPORATION
    Inventor: Masahiko SHIMIZU
  • Publication number: 20210122094
    Abstract: This molding method has: a first step for injecting a molten resin (16) to a cavity section (13) of a molding die (1); a second step for plunging, in a state wherein the resin (16) is uncured, a punching pin (2) toward the resin (16) in the cavity section (13), said punching pin having a hollow section (5) opened at an leading end (2a); and a third step for obtaining a -molded resin article by curing the resin (16).
    Type: Application
    Filed: February 15, 2019
    Publication date: April 29, 2021
    Inventors: Ryota OZAKI, Masahiko SHIMIZU, Shoya MANO, Kosuke IKEDA
  • Patent number: 10897080
    Abstract: A wireless communication device includes: a plurality of subarrays each including a plurality of antenna elements and an analog circuit configured to perform a given analog process on signals to be transmitted from or received by the antenna elements; and a processor that is connected to the subarrays. The processor executes a process including: estimating direction of arrivals from which signals transmitted from a plurality of terminals come; calculating maps based on trigonometric functions of angles representing the estimated direction of arrivals; generating a plurality of groups to which the terminals belong based on the calculated maps; assigning, to each of the groups, a combination of subarrays to generate directional beams that do not interfere with each other; and determining weighting coefficients to generate directional beams in directions of the terminals which belongs to each group by using the combination of subarrays assigned.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: January 19, 2021
    Assignee: FUJITSU LIMITED
    Inventor: Masahiko Shimizu
  • Patent number: 10868066
    Abstract: A solid-state imaging apparatus includes: a solid-state imaging device photoelectrically converting light taken by a lens; and a light shielding member shielding part of light incident on the solid-state imaging device from the lens, wherein an angle made between an edge surface of the light shielding member and an optical axis direction of the lens is larger than an incident angle of light to be incident on an edge portion of the light shielding member.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: December 15, 2020
    Assignee: Sony Corporation
    Inventors: Toshiaki Iwafuchi, Masahiko Shimizu, Hirotaka Kobayashi
  • Patent number: 10815181
    Abstract: Provided is a method for industrially efficiently producing acetic acid yielding a good potassium permanganate test result, without costing much. The acetic acid production method according to the present invention includes a carbonylation step, a separation step, a recycling step, a liquid-liquid separation step, and an acetaldehyde-removing step of treating an object, where the object is selected from at least a part of at least one of the aqueous phase and the organic phase on the basis of a factor(s) selected from a liquid temperature in the liquid-liquid separation in the liquid-liquid separation step, an acetaldehyde concentration in at least one of the aqueous phase and the organic phase, an acetaldehyde partition coefficient, a methyl acetate concentration in at least one of the aqueous phase and the organic phase, and a methyl acetate partition coefficient. In the first acetic acid stream in the separation step, a crotonaldehyde concentration is controlled to 2.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: October 27, 2020
    Assignee: DAICEL CORPORATION
    Inventor: Masahiko Shimizu
  • Publication number: 20200316878
    Abstract: A composite material lamination device laminates a composite material on a lamination surface, which is an outer surface of a mold that includes one side surface and another side surface, or an outer surface of a structure disposed on the outer surface of the mold. The composite material lamination device comprises: a first robot that is disposed on the one side surface side of the mold to laminate a portion of the composite material on a portion of the lamination surface; and a second robot disposed on the other side surface side of the mold to laminate the remaining portion of the composite material on the remaining portion of the lamination surface.
    Type: Application
    Filed: March 8, 2019
    Publication date: October 8, 2020
    Inventors: Akihito SUZUKI, Kazuki ISHIDA, Kohei MUTO, Masahiko SHIMIZU, Tsuyoshi OKAWARA, Kenji MURAKAMI
  • Patent number: 10781155
    Abstract: Provided are a method and an acetic acid production method, each of which can effectively restrain or prevent local corrosion of an inner wall of a process unit and/or line and can lower a formic acid concentration in an acetic acid product. The method produces acetic acid by a process including (1) a reaction step and (A) a separation step. In the reaction step (1), methanol is carbonylated with carbon monoxide in the presence of a catalytic system, acetic acid, methyl acetate, and water, where the catalytic system includes a metal catalyst and methyl iodide. In the separation step (A), the reaction mixture resulting from the reaction step is separated, using at least one selected from evaporators and distillation columns, into a stream containing the catalyst, an acetic acid stream rich in acetic acid, and a stream rich in lower-boiling components as compared with the acetic acid stream.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: September 22, 2020
    Assignee: DAICEL CORPORATION
    Inventor: Masahiko Shimizu
  • Patent number: 10759730
    Abstract: Provided is an acetic acid production method that enables, in a scrubbing system, efficient separation and obtaining of methyl iodide and an absorbing solvent; restrainment of corrosion of the interior of a distillation column; efficient separation between and recovery of hydrogen iodide and methyl iodide; or sufficient recovery of hydrogen iodide. The acetic acid production method according to the present invention includes a first absorption step and a second absorption step. In the first absorption step, an offgas is brought into contact with a first absorbent to allow the first absorbent to absorb an iodine compound from the offgas, to give a first gas, where the first absorbent includes at least one of C2 or higher alcohols, esters of C3 or higher carboxylic acids, esters between carboxylic acids and C2 or higher alcohols, ethers, ketones, water, and basic aqueous solutions.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: September 1, 2020
    Assignee: DAICEL CORPORATION
    Inventor: Masahiko Shimizu
  • Patent number: 10752572
    Abstract: Provided is a method for industrially efficiently producing acetic acid that yields a good potassium permanganate test result, without enormous cost. A light ends column (first distillation column) is operated with a reflux ratio at a specific level or more, a distillation column (crotonaldehyde-removing column) is provided for treating an organic phase of an overhead condensate from the light ends column, and the crotonaldehyde-removing column is operated under such conditions as to meet at least one of conditions (i) to (iii) as follows: (i) a reflux ratio at the distillation column is 0.01 or more; (ii) at the distillation column, the ratio of a crotonaldehyde concentration in a distillate to a crotonaldehyde concentration in a charge liquid is less than 1; and (iii) at the distillation column, the ratio of a crotonaldehyde concentration in bottoms to a crotonaldehyde concentration in the charge liquid is greater than 1.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: August 25, 2020
    Assignee: DAICEL CORPORATION
    Inventor: Masahiko Shimizu
  • Patent number: 10737996
    Abstract: Provided is a method that can industrially efficiently produce acetic acid yielding a good potassium permanganate test result, without costing much. The method includes an acetaldehyde-removing step by which by-produced acetaldehyde is industrially advantageously removed. The method also 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). The crotonaldehyde-removing column is operated so as to meet at least one of conditions (a-i) to (a-iii) as follows: (a-i) a reflux ratio at the distillation column is 0.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: August 11, 2020
    Assignee: DAICEL CORPORATION
    Inventor: Masahiko Shimizu
  • Patent number: 10696616
    Abstract: It is intended to provide a method capable of lowering a formic acid concentration in acetic acid product by a simple approach. The method for producing acetic acid according to the present invention comprises at least one step selected from a step that satisfies the following operating condition (i) and a step that satisfies the following operating condition (ii) in an acetic acid production process, and controlling an oxygen concentration in an embodiment satisfying at least one selected from the following (iii) and (iv) for one or more processes: (i) operating conditions involving a hydrogen partial pressure of less than 500 kPa (absolute pressure), a carbon dioxide partial pressure of less than 70 kPa (absolute pressure), and an operating temperature of more than 150° C.; (ii) operating conditions involving a hydrogen partial pressure of 5 kPa or less (absolute pressure), a carbon dioxide partial pressure of less than 20 kPa (absolute pressure), and an operating temperature of more than 100° C.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: June 30, 2020
    Assignee: DAICEL CORPORATION
    Inventor: Masahiko Shimizu
  • Publication number: 20200198188
    Abstract: A flexible mandrel for molding a composite material containing a thermosetting resin includes: a body including a contact surface configured to come into contact with the composite material during molding and a non-contact surface configured not to come into contact with the composite material during molding; and at least one hole formed from the non-contact surface toward an inside of the body.
    Type: Application
    Filed: June 7, 2018
    Publication date: June 25, 2020
    Inventors: Takayuki SHIMIZU, Akihisa OKUDA, Ryota OZAKI, Shoya MANO, Masahiko SHIMIZU
  • Publication number: 20200203409
    Abstract: The present disclosure relates to 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. The present disclosure is applicable to an imaging apparatus.
    Type: Application
    Filed: August 29, 2018
    Publication date: June 25, 2020
    Inventors: SHOGO ONO, MASAHIKO SHIMIZU