Patents by Inventor Takumi SAGO

Takumi SAGO 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).

  • Publication number: 20240093432
    Abstract: A method for manufacturing a molded product of the present disclosure includes a deposition step of depositing a mixture including a fiber and starch in air, a humidification step of applying water to the mixture, and a molding step of heating and pressurizing the mixture applied with water to obtain a molded product. The starch has a gelatinized and then pulverized particle diameter d50 of 0.30 mm or more and 1.0 mm or less, which is the average particle diameter of the finely pulverized product determined by a prescribed measuring method.
    Type: Application
    Filed: September 13, 2023
    Publication date: March 21, 2024
    Inventors: Masahiko NAKAZAWA, Shigemi WAKABAYASHI, Takashi SHINOHARA, Takumi SAGO, Naoko OMAGARI, Masahide NAKAMURA
  • Publication number: 20240001640
    Abstract: A method for manufacturing a molded body, includes a deposition step of depositing a mixture containing fibers and a starch in air; a moisturizing step of applying water to the mixture; and a molding step of forming a molded body by heating and pressurizing the mixture to which the water is applied. In the method described above, the starch has a value of 100 or less, the value being represented by the following expression (I) and being obtained by measurement performed in accordance with the following measurement methods (1) to (4) using a rapid visco analyzer (RVA). 1,000?7×T?9×???(I) In the expression (I), T represents a gelatinization peak temperature (° C.) of the starch, and h represents a setback viscosity (mPa·s) thereof, and the measurement is performed such that (1) after a water suspension containing the starch at 25 percent by mass is charged in the RVA as a measurement sample, the temperature thereof is increased to 50° C.
    Type: Application
    Filed: June 27, 2023
    Publication date: January 4, 2024
    Inventors: Shigemi WAKABAYASHI, Masahiko NAKAZAWA, Takumi SAGO, Takashi SHINOHARA
  • Publication number: 20240001641
    Abstract: A method for manufacturing a molded body, includes a deposition step of depositing a mixture containing fibers and a starch in air; a moisturizing step of applying water to the mixture; and a molding step of forming a molded body by heating and pressurizing the mixture to which the water is applied, and the starch has a value of 2,000 to 10,000, the value being represented by the following expression (I) and being obtained by measurement performed in accordance with the following measurement methods (1) to (4) using a rapid visco analyzer (RVA). 5,000?30×T1?90×(T2?T1)+2×?1?15×?2??(I) In the expression (I), T1 represents a gelatinization start temperature (° C.), T2 represents a gelatinization peak temperature (° C.
    Type: Application
    Filed: June 27, 2023
    Publication date: January 4, 2024
    Inventors: Shigemi WAKABAYASHI, Masahiko NAKAZAWA, Yasuo MIYAMOTO, Takumi SAGO, Takashi SHINOHARA
  • Publication number: 20240003090
    Abstract: A method for manufacturing a molded body, includes a deposition step of depositing a mixture containing fibers and a starch in air; a moisturizing step of applying water to the mixture; and a molding step of forming a molded body by heating and pressurizing the mixture to which the water is applied. In the method described above, the starch has a setback viscosity (?50-?93) of 40 to 200 mPa·s, the setback viscosity (?50-?93) being obtained by measurement performed in accordance with the following measurement methods (1) to (4) using a rapid visco analyzer (RVA). The measurement is performed such that (1) after a water suspension containing the starch at 25 percent by mass is charged in the RVA as a measurement sample, the temperature thereof is increased to 50° C. and then maintained for one minute; (2) the temperature of the measurement sample is increased from 50° C. to 93° C. over 4 minutes and then maintained at 93° C. for 7 minutes; (3) the temperature of the measurement sample is decreased from 93° C.
    Type: Application
    Filed: June 27, 2023
    Publication date: January 4, 2024
    Inventors: Shigemi WAKABAYASHI, Masahiko NAKAZAWA, Takumi SAGO, Takashi SHINOHARA
  • Publication number: 20230116888
    Abstract: A binding material to obtain a molded body by binding fibers to each other, includes a thermoplastic resin and a fluorescent whitener, and the fluorescent whitener has a melting point higher than a fusing point of the thermoplastic resin. The melting point of the fluorescent whitener is preferably 200° C. or more. A content of the fluorescent whitener in the binding material is preferably 1.0 percent by mass or less. The binding material preferably further includes a white pigment.
    Type: Application
    Filed: October 6, 2022
    Publication date: April 13, 2023
    Inventors: Takumi SAGO, Masahiko NAKAZAWA
  • Patent number: 11566372
    Abstract: A method for defibrating a fiber body includes: a supply step of supplying a liquid to a fiber body containing fibers; and a defibrating step of defibrating the fiber body to which the liquid is supplied, and in the supply step, the liquid is supplied to the fiber body so that a rate in tensile strength of the fiber body immediately before defibrated in the defibrating step to the fiber body before the liquid is supplied thereto is 60.0% or less.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: January 31, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Tetsuya Aoyama, Shinichi Kato, Shigemi Wakabayashi, Yoshihiro Ueno, Shunichi Seki, Takumi Sago, Hiroki Kurata
  • Patent number: 11465387
    Abstract: A sheet forming binder includes a first powder and a second powder having a larger volume average particle size than the first powder. The proportion of the first powder is 10.0% by mass or more relative to the total mass of the first powder and the second powder.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: October 11, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Hiroki Kurata, Yoshihiro Ueno, Takumi Sago
  • Publication number: 20220289966
    Abstract: The complex of the present disclosure includes a thermoplastic particle constituted of a thermoplastic material and an inorganic particle surface-treated with at least one surface treatment agent selected from the group consisting of fluorine-containing compounds and silicon-containing compounds and further includes a composite particle composed of the thermoplastic particle and the inorganic particle adhered to the thermoplastic particle.
    Type: Application
    Filed: March 14, 2022
    Publication date: September 15, 2022
    Inventors: Takumi SAGO, Yoshihiro UENO, Hiroki KURATA
  • Publication number: 20220010081
    Abstract: A binder that is used for forming fiber-based items and that binds fibers contains a polyester and an aggregation inhibitor. The polyester contains a structural unit derived from polyethylene terephthalate, a structural unit derived from at least one polyvalent carboxylic acid, and a structural unit derived from at least one polyhydric alcohol including trimethylolpropane. The binder exhibits a viscosity coefficient higher than 3500 P at 150° C. in dynamic viscoelasticity measurement.
    Type: Application
    Filed: July 6, 2021
    Publication date: January 13, 2022
    Inventors: Takumi SAGO, Masahiko NAKAZAWA, Yoshihiro UENO
  • Patent number: 10759185
    Abstract: A sheet for a laser printer includes a plurality of fibers, and a binding agent for binding the plurality of fibers, in which an abundance of the binding agent on a surface of the sheet is smaller than an abundance of the binding agent in a center in a thickness direction of the sheet.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: September 1, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Yoshihiro Ueno, Takumi Sago, Hiroki Kurata, Shunichi Seki
  • Publication number: 20200173102
    Abstract: A method for defibrating a fiber body includes: a supply step of supplying a liquid to a fiber body containing fibers; and a defibrating step of defibrating the fiber body to which the liquid is supplied, and in the supply step, the liquid is supplied to the fiber body so that a rate in tensile strength of the fiber body immediately before defibrated in the defibrating step to the fiber body before the liquid is supplied thereto is 60.0% or less.
    Type: Application
    Filed: December 2, 2019
    Publication date: June 4, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tetsuya AOYAMA, Shinichi KATO, Shigemi WAKABAYASHI, Yoshihiro UENO, Shunichi SEKI, Takumi SAGO, Hiroki KURATA
  • Publication number: 20200080262
    Abstract: The present disclosure provides a sheet manufacturing binding material which includes a polyester obtained by a reaction between a polyvalent alcohol having a secondary hydroxyl group and a polybasic acid.
    Type: Application
    Filed: September 3, 2019
    Publication date: March 12, 2020
    Inventors: Takumi SAGO, Yoshihiro UENO, Hiroki KURATA, Shunichi SEKI, Haruna SUDA
  • Publication number: 20200031090
    Abstract: A sheet forming binder includes a first powder and a second powder having a larger volume average particle size than the first powder. The proportion of the first powder is 10.0% by mass or more relative to the total mass of the first powder and the second powder.
    Type: Application
    Filed: July 22, 2019
    Publication date: January 30, 2020
    Inventors: Hiroki KURATA, Yoshihiro UENO, Takumi SAGO
  • Publication number: 20190389226
    Abstract: A sheet for a laser printer includes a plurality of fibers, and a binding agent for binding the plurality of fibers, in which an abundance of the binding agent on a surface of the sheet is smaller than an abundance of the binding agent in a center in a thickness direction of the sheet.
    Type: Application
    Filed: June 20, 2019
    Publication date: December 26, 2019
    Inventors: Yoshihiro UENO, Takumi SAGO, Hiroki KURATA, Shunichi SEKI
  • Patent number: 10406834
    Abstract: A sheet processing device, a sheet manufacturing apparatus, and a sheet processing method enable effectively removing the color material of printed parts. A sheet processing device for processing a printed sheets has a detector configured to detect the printed parts of the sheet; and a refining prevention agent applicator configured to selectively apply a refining prevention agent that prevents refinement of the sheet to a printed area including the printed parts detected by the detector.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: September 10, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Tatsuya Fujii, Takumi Sago, Tsukasa Ota, Satomi Yoshioka
  • Publication number: 20190100040
    Abstract: A sheet processing device, a sheet manufacturing apparatus, and a sheet processing method enable effectively removing the color material of printed parts. A sheet processing device for processing a printed sheets has a detector configured to detect the printed parts of the sheet; and a refining prevention agent applicator configured to selectively apply a refining prevention agent that prevents refinement of the sheet to a printed area including the printed parts detected by the detector.
    Type: Application
    Filed: September 28, 2018
    Publication date: April 4, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tatsuya FUJII, Takumi SAGO, Tsukasa OTA, Satomi YOSHIOKA
  • Patent number: 9595675
    Abstract: A light-emitting element includes an anode, a cathode, a hole transporting layer provided between the anode and cathode, a light-emitting layer provided in contact with the hole transporting layer between the anode and cathode, where the surface of the light-emitting layer side of the hole transporting layer is formed in a shape having a part in which the distance with the reference surface along the anode changes in a continuous or step-wise manner, and the surface of the opposite side to the hole transporting layer of the light-emitting layer is formed so as to have the same shape as the surface of the light-emitting layer of the hole transporting layer.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: March 14, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takumi Sago, Masahiro Uchida, Kohei Ishida, Shotaro Watanabe
  • Patent number: 9490456
    Abstract: An organic EL element with a functional layer including at least a hole injection layer, a hole transport layer, and a luminescence layer laminated from a pixel electrode side in order between a pixel electrode as an anode and a counter electrode as a cathode, and a method of manufacturing the organic EL element has a forming process by applying a solution including a low molecular material and a high molecular material to at least one layer among the hole injection layer, the hole transport layer, and luminescence layer, in which the molecular weight of low molecular material is 10,000 or less and the molecular weight of high molecular material is 10,000 to 300,000, and in which a mixing ratio of low molecular material is 10 wt % to 90 wt % with respect to the weight of low molecular material and high molecular material included in the solution.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: November 8, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takumi Sago, Seiichi Tanabe, Shotaro Watanabe, Kohei Ishida
  • Publication number: 20150280130
    Abstract: A light-emitting element includes an anode, a cathode, a hole transporting layer provided between the anode and cathode, a light-emitting layer provided in contact with the hole transporting layer between the anode and cathode, where the surface of the light-emitting layer side of the hole transporting layer is formed in a shape having a part in which the distance with the reference surface along the anode changes in a continuous or step-wise manner, and the surface of the opposite side to the hole transporting layer of the light-emitting layer is formed so as to have the same shape as the surface of the light-emitting layer of the hole transporting layer.
    Type: Application
    Filed: March 24, 2015
    Publication date: October 1, 2015
    Inventors: Takumi SAGO, Masahiro UCHIDA, Kohei ISHIDA, Shotaro WATANABE
  • Patent number: 9123665
    Abstract: An organic EL device has a pixel including a red, a green and a blue sub-pixel. The organic EL device includes anodes disposed in the sub-pixels, and a cathode. A red luminescent layer is formed by liquid application between the anode and the cathode, and a green luminescent layer is formed by liquid application between the anode and the cathode. A blue luminescent layer is formed by vapor deposition over the entire region of the red, green and blue sub-pixels between the red and green luminescent layers and the cathode, and between the anode and the cathode in the blue sub-pixel. An infrared luminescent layer is formed by vapor deposition over the entire region of the red, green and blue sub-pixels between the red and green luminescent layers and the blue luminescent layer, and between the anode and the blue luminescent layer in the blue sub-pixel.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: September 1, 2015
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Takumi Sago