Patents by Inventor Takahiko Sasaki

Takahiko Sasaki 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: 11198793
    Abstract: [Problem] To provide an aqueous coating agent composition (in particular, an aqueous coating composition for lubricating films that contains a solid lubricant) which as a whole is excellent in terms of flowability, applicability, and storage stability and which is capable of forming satisfactory and smooth coating films effective in stick-slip inhibition. [Solution] The problem can be solved with an aqueous coating agent composition which comprises (A) a curable resin in an aqueous emulsion form, (B) a surfactant, (C) solid particles, (D) one or more nitrogenous heterocyclic compounds, (E) a film-forming silicone in an aqueous emulsion form, and (F) water. In particular, it is preferable that the (C) component comprise a solid lubricant. In view of the environmental regulations, it is especially preferable that the (D) component be 1,3-dimethyl-2-imidazolidinone.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: December 14, 2021
    Assignee: Dupont Toray Specialty Materials Kabushiki Kaisha
    Inventors: Takahiko Sasaki, Tetsuji Yamaguchi, Kazuhiko Kojima
  • Patent number: 11200951
    Abstract: According to one embodiment, a semiconductor memory device includes a plurality of memory cells; a first circuit configured to convert first data into second data relating to an order of thresholds of the memory cells; and a second circuit configured to perform a write operation on the memory cells based on the second data.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: December 14, 2021
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Rieko Funatsuki, Takahiko Sasaki, Tomonori Kurosawa
  • Patent number: 11180654
    Abstract: A film is formed by use of a composition containing (A) a binder resin, (B) a hard particle, and (C) a solid lubricant selected from the group containing molybdenum disulfide and graphite, wherein the composition contains tungsten carbide as the hard particle, and wherein weight ratio of (B) the hard particles and (C) the solid lubricant, (B)/(C), is in the range of 1 to 3.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: November 23, 2021
    Assignee: DUPONT TORAY SPECIALTY MATERIALS KABUSHIKI KAISHA
    Inventors: Takahiko Sasaki, Tetsuji Yamaguchi
  • Publication number: 20210246310
    Abstract: A film is formed by use of a composition containing (A) a binder resin, (B) a hard particle, and (C) a solid lubricant selected from the group containing molybdenum disulfide and graphite, wherein the composition contains tungsten carbide as the hard particle, and wherein weight ratio of (B) the hard particles and (C) the solid lubricant, (B)/(C), is in the range of 1 to 3.
    Type: Application
    Filed: May 31, 2019
    Publication date: August 12, 2021
    Inventors: Takahiko SASAKI, Tetsuji YAMAGUCHI
  • Publication number: 20200185035
    Abstract: According to one embodiment, a semiconductor memory device includes a plurality of memory cells; a first circuit configured to convert first data into second data relating to an order of thresholds of the memory cells; and a second circuit configured to perform a write operation on the memory cells based on the second data.
    Type: Application
    Filed: September 5, 2019
    Publication date: June 11, 2020
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Rieko FUNATSUKI, Takahiko Sasaki, Tomonori KUROSAWA
  • Publication number: 20200157379
    Abstract: [Problem] To provide an aqueous coating agent composition (in particular, an aqueous coating composition for lubricating films that contains a solid lubricant) which as a whole is excellent in terms of flowability, applicability, and storage stability and which is capable of forming satisfactory and smooth coating films effective in stick-slip inhibition. [Solution] The problem can be solved with an aqueous coating agent composition which comprises (A) a curable resin in an aqueous emulsion form, (B) a surfactant, (C) solid particles, (D) one or more nitrogenous heterocyclic compounds, (E) a film-forming silicone in an aqueous emulsion form, and (F) water. In particular, it is preferable that the (C) component comprise a solid lubricant. In view of the environmental regulations, it is especially preferable that the (D) component be 1,3-dimethyl-2-imidazolidinone.
    Type: Application
    Filed: July 9, 2018
    Publication date: May 21, 2020
    Inventors: Takahiko SASAKI, Tetsuji YAMAGUCHI, Kazuhiko KOJIMA
  • Patent number: 10364582
    Abstract: A device for repairing a crack in a wall includes an injection nozzle that has a nozzle part, and an adsorption disk fixed to a supporting shaft in which a suction passage for sucking air is formed and can be adsorbed to a wall surface by sucking air through the suction passage, and can be detached from the wall surface by releasing the suction, an arm having a front end part and a rear end part in the axial direction, and is supported by the supporting shaft in the midpoint of the axial direction through the first universal joint and supports an inflow pipe of the injection nozzle in the front end part through a second universal joint, and a plurality of contact members attached to the rear end part of the arm, the front end thereof contacting the wall surface, and receives the moment load generated in the arm.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: July 30, 2019
    Assignee: SAKAEGUMI CORPORATION
    Inventors: Takahiko Sasaki, Yoshihiro Sasaki
  • Patent number: 10332593
    Abstract: According to one embodiment, a semiconductor memory device includes first and second memory cells, a word line, first and second bit lines, a sense amplifier and a driver. The first and second memory cells have first and second threshold voltages, respectively. The word line is electrically connected to the first and second memory cells. The first and second bit lines are electrically connected to the first and second memory cells, respectively. The driver increases gradually the voltage of the word line. When the voltage of the word line is increased gradually by the driver, the sense amplifier senses the first and second threshold voltages in ascending order.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: June 25, 2019
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Takahiko Sasaki, Go Shikata, Tomonori Kurosawa, Rieko Funatsuki
  • Patent number: 10294441
    Abstract: A coating composition for a lubricating coating film includes: (A) a phenolic resin; (B) an epoxy resin having an epoxy equivalent weight of 600 to 4000; and (C) at least one type of solid lubricant. The epoxy equivalent weight is generally defined by the number average molecular weight per the number of epoxy groups in a single molecule. The coating composition has a weight ratio of component (A) to the total weight of component (A) and component (B) of at least 50 weight %. A lubricating coating film, formed from the coating composition, has a high level of flexibility on surfaces of various base materials.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: May 21, 2019
    Assignee: Dow Corning Toray Co., Ltd.
    Inventors: Takahiko Sasaki, Tetsuji Yamaguchi
  • Publication number: 20180362873
    Abstract: A sliding member (excluding that used for an image forming apparatus), which can maintain a satisfactory friction coefficient and reduce generation of a rubbing sound (noise) caused by a continuously sliding member, is provided. A component and a mechanical apparatus using the sliding member, and a method for reducing noise caused from a mechanical apparatus, are also provided. Additionally, a coating agent composition is provided for preparing the sliding member. The sliding member has a lubricating film contacting another member, wherein an arithmetic average roughness Ra based on JIS B0601 (2001) of a surface of the lubricating film is from 0.01-1.0 ?m, and the lubricating film comprises 100 parts by mass of a coat-formable resin binder (A) and 5 to 200 parts by mass of a solid lubricant (B).
    Type: Application
    Filed: December 9, 2016
    Publication date: December 20, 2018
    Inventors: Takahiko SASAKI, Tetsuji YAMAGUCHI
  • Patent number: 10096652
    Abstract: A semiconductor memory device according to an embodiment includes: a first wiring line extending in a first direction; a second wiring line extending in a second direction, the second direction intersecting the first direction; a variable resistance film disposed at an intersection of the first wiring line and the second wiring line; a channel body disposed at a first end of the first wiring line; a third wiring line electrically connected to the first wiring line via the channel body; and a gate wiring line extending in the first direction and facing the channel body from the second direction.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: October 9, 2018
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Takahiko Sasaki, Takeshi Yamaguchi
  • Publication number: 20180251990
    Abstract: A device for repairing a crack in a wall includes an injection nozzle that has a nozzle part, and an adsorption disk fixed to a supporting shaft in which a suction passage for sucking air is formed and can be adsorbed to a wall surface by sucking air through the suction passage, and can be detached from the wall surface by releasing the suction, an arm having a front end part and a rear end part in the axial direction, and is supported by the supporting shaft in the midpoint of the axial direction through the first universal joint and supports an inflow pipe of the injection nozzle in the front end part through a second universal joint, and a plurality of contact members attached to the rear end part of the arm, the front end thereof contacting the wall surface, and receives the moment load generated in the arm.
    Type: Application
    Filed: August 23, 2016
    Publication date: September 6, 2018
    Inventors: Takahiko SASAKI, Yoshihiro SASAKI
  • Patent number: 9938483
    Abstract: A coating composition for lubrication film is disclosed. The coating composition comprises (A) a high energy beam-curable resin, (B) silicone elastomer fine particles, and (C) a gum-like polysiloxane. The coating composition is capable of forming a lubrication film that suppresses the occurrence of stick-slip phenomenon, has good feel, adheres to a substrate, and has excellent followability (i.e. ability to follow the elastic transformation) to conform to deformation of the substrate.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: April 10, 2018
    Assignee: DOW CORNING TORAY CO., LTD.
    Inventors: Takahiko Sasaki, Tetsuji Yamaguchi
  • Publication number: 20180076264
    Abstract: A semiconductor memory device according to an embodiment includes: a first wiring line extending in a first direction; a second wiring line extending in a second direction, the second direction intersecting the first direction; a variable resistance film disposed at an intersection of the first wiring line and the second wiring line; a channel body disposed at a first end of the first wiring line; a third wiring line electrically connected to the first wiring line via the channel body; and a gate wiring line extending in the first direction and facing the channel body from the second direction.
    Type: Application
    Filed: March 21, 2017
    Publication date: March 15, 2018
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Takahiko SASAKI, Takeshi YAMAGUCHI
  • Patent number: 9911493
    Abstract: A semiconductor memory device includes a memory cell array having first wires, a second wire, and memory cells connected to the first and second wires, and a control circuit that can apply writing voltages to the second wire. One of the memory cells connected to the selected second wire and a selected first wire is a selected memory cell. One of the memory cells connected to the selected second wire and an unselected first wire is a semi-selected memory cell. When writing data into the selected memory cell, the control circuit selects one from the writing voltages and applies the one writing voltage to a third wire connected to the selected second wire. The control circuit selects the one writing voltage, based on a first current flowing through the second wire when each of the memory cells connected to the selected second wire are set as semi-selected memory cells.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: March 6, 2018
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventor: Takahiko Sasaki
  • Publication number: 20170349762
    Abstract: An aqueous coating agent composition includes (A) a curable resin in the form of an aqueous emulsion, (B) a surfactant, (C) solid particles, (D) one or more nitrogen-containing heterocyclic compounds, and (E) water. In various embodiments, component (C) includes a solid lubricant, and for reasons of environmental regulations, component (D) includes 1,3-dimethyl-2-imidazolidinone.
    Type: Application
    Filed: December 11, 2015
    Publication date: December 7, 2017
    Inventors: Takahiko SASAKI, Tetsuji YAMAGUCHI
  • Patent number: 9696213
    Abstract: According to one embodiment, a temperature sensor includes: a voltage generating part generating (2N?1)-midpoint voltages (N is a natural number equal to or larger than 2) based on a reference voltage which does not depend on a temperature; a sense part generating a temperature sensing voltage which depends on the temperature; and an arithmetic part is configured to generate N-bit temperature data by executing first to N-th operations each comparing the temperature sensing voltage with one of the (2N?1)-midpoint voltages.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: July 4, 2017
    Assignees: KABUSHIKI KAISHA TOSHIBA, SanDisk Technologies LLC
    Inventors: Takahiko Sasaki, Gopinath Balakrishnan
  • Publication number: 20170110186
    Abstract: According to one embodiment, a semiconductor memory device includes first and second memory cells, a word line, first and second bit lines, a sense amplifier and a driver. The first and second memory cells have first and second threshold voltages, respectively. The word line is electrically connected to the first and second memory cells. The first and second bit lines are electrically connected to the first and second memory cells, respectively. The driver increases gradually the voltage of the word line. When the voltage of the word line is increased gradually by the driver, the sense amplifier senses the first and second threshold voltages in ascending order.
    Type: Application
    Filed: December 16, 2016
    Publication date: April 20, 2017
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takahiko Sasaki, Go Shikata, Tomonori Kurosawa, Rieko Funatsuki
  • Publication number: 20170076790
    Abstract: According to one embodiment, a semiconductor memory device includes first and second memory cells, a word line, first and second bit lines, a sense amplifier and a driver. The first and second memory cells have first and second threshold voltages, respectively. The word line is electrically connected to the first and second memory cells. The first and second bit lines are electrically connected to the first and second memory cells, respectively. The driver increases gradually the voltage of the word line. When the voltage of the word line is increased gradually by the driver, the sense amplifier senses the first and second threshold voltages in ascending order.
    Type: Application
    Filed: March 14, 2016
    Publication date: March 16, 2017
    Applicants: Kabushiki Kaisha Toshiba, Toshiba America Electronic Components, Inc.
    Inventors: Takahiko SASAKI, Go SHIKATA
  • Publication number: 20170073605
    Abstract: A coating composition for a lubricating coating film includes: (A) a phenolic resin (B) an epoxy resin having an epoxy equivalent weight of 600 to 4000; and (C) at least one type of solid lubricant. The epoxy equivalent weight is generally defined by the number average molecular weight per the number of epoxy groups in a single molecule. The coating composition has a weight ratio of component (A) to the total weight of component (A) and component (B) of at least 50 weight %. A lubricating coating film, formed from the coating composition, has a high level of flexibility on surfaces of various base materials.
    Type: Application
    Filed: March 3, 2015
    Publication date: March 16, 2017
    Inventors: Takahiko SASAKI, Tetsuji YAMAGUCHI