Patents Assigned to Yamagata University
  • Publication number: 20250223495
    Abstract: The disclosure aims to provide a composition capable of suppressing fluororesin agglomeration, which may lead to strands with a poor appearance, even when the proportion of the fluororesin is increased, and also aims to provide a molded article, a laminate, and a resin. The disclosure relates to a composition containing: a fluororesin A; and a resin B other than the fluororesin A, the resin B having a melt flow rate of 30 g/10 min or higher at a melting point +12° C., at least one of the fluororesin A or the resin B containing a group (I) represented by the following formula: wherein R1 and R2 are the same as or different from each other, are each hydrogen or an organic group, and optionally bond to each other to form a ring structure; and a double line composed of a solid line and a dotted line represents a single bond or a double bond.
    Type: Application
    Filed: March 27, 2025
    Publication date: July 10, 2025
    Applicants: National University Corporation Yamagata University, DAIKIN INDUSTRIES, LTD.
    Inventors: Tatsuhiro Takahashi, Takuya Nukui, Yuma Tomizawa, Shuhei Yamaguchi, Toshiyuki Fukushima, Toyomitsu Seki, Masaji Komori, Ken Okanishi, Akiyoshi Yamauchi
  • Patent number: 12234339
    Abstract: Porous conductive resin is produced by: mixing a hydrogen bond donor compound and a hydrogen bond acceptor compound to produce deep eutectic liquid (DEL); adding conductive materials to the DEL to produce gel; adding resin that is insoluble in the DEL to the gel to produce ink made of the gel dispersed in the resin; forming the produced ink into a formed object having a desired shape; curing the resin in the formed object; and evaporating the DEL in the formed object including the cured resin.
    Type: Grant
    Filed: May 16, 2023
    Date of Patent: February 25, 2025
    Assignee: National University Corporation Yamagata University
    Inventors: Ayako Yoshida, Yi-Fei Wang, Shizuo Tokito
  • Publication number: 20240320302
    Abstract: A change detecting device includes: a time-series data acquiring unit that acquires time-series data in a period including a first period and a second period after the first period; a vector acquiring unit that acquires first vectors which are pieces of partial time-series data in the first period and second vectors which are pieces of partial time-series data in the second period on the basis of the time-series data acquired by the time-series data acquiring unit; a difference vector acquiring unit that acquires a difference vector related to a combination of a specific first vector among the first vectors and a specific second vector among the second vectors in a plurality of combinations; and a change detecting unit that detects a characteristic change of the time-series data on the basis of a bias in distribution of directions of the plurality of difference vectors acquired by the difference vector acquiring unit.
    Type: Application
    Filed: March 18, 2024
    Publication date: September 26, 2024
    Applicants: AZBIL KIMMON CO., LTD., National University Corporation Yamagata University
    Inventors: Eiji MURAKAMI, Ikumi Suzuki, Kazuo Hara
  • Publication number: 20240102158
    Abstract: An object of the present invention is to provide a novel method for forming a carbonaceous structure comprising minute carbon bodies such as CNTs. A method for forming a carbonaceous structure on the surface of a substrate, comprising a step of forming a layered structure by at least partially filling a gap between a porous membrane which can hold a dispersion medium and a substrate with a minute-carbon-body dispersion liquid comprising the minute carbon bodies and the dispersion medium, and a step of removing the dispersion medium by at least partially taking the dispersion medium out of the layered structure through the porous membrane and/or the substrate.
    Type: Application
    Filed: October 23, 2020
    Publication date: March 28, 2024
    Applicants: National University Corporation Yamagata University, Nissan Chemical Corporation
    Inventors: Manabu ISHIZAKI, Masato KURIHARA, Jun MATSUI
  • Patent number: 11437596
    Abstract: To provide an organic photoelectronic element excellent in light emitting characteristics and long-term reliability. The organic photoelectronic element comprises a substrate, an anode provided on the substrate, a cathode facing the anode, a light emitting layer disposed between the anode and the cathode, a hole transport layer disposed between the light emitting layer and the anode, and an electron blocking layer provided in contact with the light emitting layer and the hole transport layer between the light emitting layer and the hole transport layer, wherein the hole transport layer contains a fluorinated polymer and an organic semiconductor material, and has a refractive index in the wavelength range of from 450 nm to 800 nm, of at most 1.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: September 6, 2022
    Assignees: AGC Inc., National University Corporation Yamagata University
    Inventors: Shigeki Hattori, Takefumi Abe, Kaori Tsuruoka, Yasuhiro Kuwana, Daisuke Yokoyama
  • Patent number: 11355734
    Abstract: To provide an organic photoelectronic element, of which the external quantum efficiency is improved, the power consumption is low and the service life is prolonged. The organic photoelectronic element comprises a substrate, an anode provided on the substrate, a cathode facing the anode, a light emitting layer disposed between the anode and the cathode, and a hole transport layer provided in contact with the light emitting layer between the light emitting layer and the anode, wherein the hole transport layer contains an organic semiconductor material and a fluorinated polymer, and at the surface of the hole transport layer in contact with the light emitting layer, the fluorinated polymer is present.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: June 7, 2022
    Assignees: AGC Inc., National University Corporation Yamagata University
    Inventors: Takefumi Abe, Yasuhiro Kuwana, Shigeki Hattori, Kaori Tsuruoka, Daisuke Yokoyama
  • Patent number: 11248222
    Abstract: An object of the present invention is to provide a novel method for controlling enzyme productivity of a microorganism. A pulsed electric field is applied to a microorganism to control the enzyme productivity of the microorganism.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: February 15, 2022
    Assignees: AMANO ENZYME INC., National University Corporation Yamagata University
    Inventors: Yasushi Minamitani, Toshiyuki Sugiura
  • Publication number: 20220000396
    Abstract: A living body detection device configured to detect a presence of a living body in a predetermined location. The living body detection device includes a piezoelectric element configured to detect a pressure change in the predetermined location, and a processor configured to: calculate multiple pieces of living body information, based on the pressure change detected by the piezoelectric element; calculate a composite index which compositively indicates that the multiple pieces of living body information are caused by the living body, based on the calculated multiple pieces of living body information; and determine whether there is or not the living body in the predetermined location, based on the calculated composite index.
    Type: Application
    Filed: September 21, 2021
    Publication date: January 6, 2022
    Applicant: National University Corporation Yamagata University
    Inventors: Daisuke KUMAKI, Hiroto SATO, Shizuo TOKITO
  • Patent number: 10892418
    Abstract: To provide a charge injection layer in which the refractive index is sufficiently low and unbalance in the composition of materials is less likely to occur, and a method for its production as well as an organic photoelectronic element and a method for its production. The charge injection layer contains a fluorinated polymer and a semiconductor material, and has a refractive index in the wavelength range of from 450 to 800 nm, of at most 1.60.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: January 12, 2021
    Assignees: AGC Inc., National University Corporation Yamagata University
    Inventors: Shigeki Hattori, Takefumi Abe, Kaori Tsuruoka, Yasuhiro Kuwana, Daisuke Yokoyama
  • Patent number: 10879468
    Abstract: To provide a layer such as a charge transport layer having a refractive index significantly lowered without impairing electrical conductivity and surface roughness, and a method for producing it. A deposited film composition obtained by co-depositing a fluorinated polymer having a saturated vapor pressure at 300° C. of at least 0.001 Pa and an organic semiconductor material.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: December 29, 2020
    Assignees: National University Corporation Yamagata University, AGC Inc.
    Inventors: Daisuke Yokoyama, Takefumi Abe, Yasuhiro Kuwana
  • Patent number: 10793817
    Abstract: A cell culture device comprises a first inner cylinder formed in a tubular shape, a cell culture membrane placed to cover over an entire one end of the first inner cylinder and configured to be folded down toward an outer surface of the first inner cylinder along an outer circumference at the one end of the first inner cylinder, and an outer cylinder formed in a tubular shape, configured to place the first inner cylinder inside thereof such that a height direction of the outer cylinder is identical with a height direction of the first inner cylinder, and provided with a first slit in an area overlapping with at least the one end of the first inner cylinder to be extended in the height direction, wherein the cell culture membrane is held between an inner wall surface of the outer cylinder and the outer surface of the first inner cylinder.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: October 6, 2020
    Assignees: TOYODA GOSEI CO., LTD., National University Corporation Yamagata University
    Inventors: Hiroyuki Nakagawa, Seitaro Taki, Hisashi Mizuno, Toshiyuki Hagiyama, Atsuki Yoshimura, Yasuhiko Shinoda, Yasuhiko Ogisu, Masaru Tanaka, Chikako Sato
  • Publication number: 20200176715
    Abstract: To provide an organic photoelectronic element, of which the external quantum efficiency is improved, the power consumption is low and the service life is prolonged. The organic photoelectronic element comprises a substrate, an anode provided on the substrate, a cathode facing the anode, a light emitting layer disposed between the anode and the cathode, and a hole transport layer provided in contact with the light emitting layer between the light emitting layer and the anode, wherein the hole transport layer contains an organic semiconductor material and a fluorinated polymer, and at the surface of the hole transport layer in contact with the light emitting layer, the fluorinated polymer is present.
    Type: Application
    Filed: February 3, 2020
    Publication date: June 4, 2020
    Applicants: AGC Inc., National University Corporation Yamagata University
    Inventors: Takefumi ABE, Yasuhiro Kuwana, Shigeki Hattori, Kaori Tsuruoka, Daisuke Yokoyama
  • Publication number: 20200176678
    Abstract: To provide a charge injection layer in which the refractive index is sufficiently low and unbalance in the composition of materials is less likely to occur, and a method for its production as well as an organic photoelectronic element and a method for its production. The charge injection layer contains a fluorinated polymer and a semiconductor material, and has a refractive index in the wavelength range of from 450 to 800 nm, of at most 1.60.
    Type: Application
    Filed: February 3, 2020
    Publication date: June 4, 2020
    Applicants: AGC Inc., National University Corporation Yamagata University
    Inventors: Shigeki HATTORI, Takefumi ABE, Kaori TSURUOKA, Yasuhiro KUWANA, Daisuke YOKOYAMA
  • Publication number: 20200168829
    Abstract: To provide an organic photoelectronic element excellent in light emitting characteristics and long-term reliability. The organic photoelectronic element comprises a substrate, an anode provided on the substrate, a cathode facing the anode, a light emitting layer disposed between the anode and the cathode, a hole transport layer disposed between the light emitting layer and the anode, and an electron blocking layer provided in contact with the light emitting layer and the hole transport layer between the light emitting layer and the hole transport layer, wherein the hole transport layer contains a fluorinated polymer and an organic semiconductor material, and has a refractive index in the wavelength range of from 450 nm to 800 nm, of at most 1.
    Type: Application
    Filed: February 3, 2020
    Publication date: May 28, 2020
    Applicants: AGC Inc., National University Corporation Yamagata University
    Inventors: Shigeki HATTORI, Takefumi ABE, Kaori TSURUOKA, Yasuhiro KUWANA, Daisuke YOKOYAMA
  • Patent number: 10608183
    Abstract: To provide a charge transport layer excellent in the external quantum efficiency, and an organic photoelectronic element comprising the charge transport layer. A charge transport layer comprising a film containing a fluorinated polymer and a semiconductor material, wherein the film has a material composition such that ?Eth is within a range of from 0.010 to 0.080 MV/cm. An organic photoelectronic element comprising the charge transport layer.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: March 31, 2020
    Assignees: AGC Inc., National University Corporation Yamagata University
    Inventors: Takefumi Abe, Yasuhiro Kuwana, Shigeki Hattori, Kaori Tsuruoka, Daisuke Yokoyama
  • Publication number: 20190305226
    Abstract: To provide a layer such as a charge transport layer having a refractive index significantly lowered without impairing electrical conductivity and surface roughness, and a method for producing it. A deposited film composition obtained by co-depositing a fluorinated polymer having a saturated vapor pressure at 300° C. of at least 0.001 Pa and an organic semiconductor material.
    Type: Application
    Filed: June 4, 2019
    Publication date: October 3, 2019
    Applicants: National University Corporation Yamagata University, AGC Inc.
    Inventors: Daisuke YOKOYAMA, Takefumi ABE, Yasuhiro KUWANA
  • Publication number: 20190283242
    Abstract: A multi-directional drive device includes a first drive motor supported by a holding portion and having a first drive shaft, a rotary member integrally connected to the first drive shaft of the first drive motor and configured to rotate together with the first drive shaft, a spherical body supported on the rotary member to be relatively rotatable and configured to rotate about a second rotation center axis different from a first rotation center axis of the first drive shaft, a second drive motor mounted on the rotary member and having a second drive shaft independent of the first drive shaft, and a transmission mechanism provided between the second drive shaft of the second drive motor and the spherical body on the rotary member and configured to transmit power of the second drive shaft to the spherical body and cause the spherical body to slidably rotate about the second rotation center axis with respect to the rotary member, wherein a body to be operated is supported by the spherical body.
    Type: Application
    Filed: November 10, 2017
    Publication date: September 19, 2019
    Applicants: NEC Embedded Products, Ltd., National University Corporation Yamagata University
    Inventors: Yasunori OKAZAKI, Tomomi MATSUDA, Riichiro TADAKUMA, Hiroto SAITO, Kazuki ABE, Shinnosuke HAO, Kazuki MOGI
  • Publication number: 20190288205
    Abstract: To provide a charge transport layer excellent in the external quantum efficiency, and an organic photoelectronic element comprising the charge transport layer. A charge transport layer comprising a film containing a fluorinated polymer and a semiconductor material, wherein the film has a material composition such that ?Eth is within a range of from 0.010 to 0.080 MV/cm. An organic photoelectronic element comprising the charge transport layer.
    Type: Application
    Filed: June 4, 2019
    Publication date: September 19, 2019
    Applicants: AGC Inc., National University Corporation Yamagata University
    Inventors: Takefumi ABE, Yasuhiro Kuwana, Shigeki Hattori, Kaori Tsuruoka, Daisuke Yokoyama
  • Patent number: 10391205
    Abstract: To Provide is a polymer having high antithrombogenicity compared to a conventional polymer having a glycerol group and suitable as a medical device material. It is the polymer having a structural unit derived from a glycerol group-containing monomer, and a structural unit derived from an unsaturated monomer having a structure in which an organic group having a structure site having 4 or more carbon atoms continuously bound is bound to an ethylenically unsaturated group; and satisfying a glass-transition temperature of 10° C. or less and/or a glass-transition temperature of ?25° C. or less at a saturated water content.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: August 27, 2019
    Assignees: National University Corporation Yamagata University, Nippon Shokubai Co., Ltd.
    Inventors: Masaru Tanaka, Naoki Kobayashi, Yoshitomo Nakata, Asuka Sugawara
  • Publication number: 20190091380
    Abstract: A biocompatible material, which has excellent film formation properties and resistance to water dissolution, and is easily applied on various bases as a coating, while having excellent antithrombotic properties, and to provide an antithrombotic coating agent and an antithrombotic coating film produced by using the biocompatible material, and a medical device provided with the antithrombotic coating film. A copolymer, containing at least one repeating unit (A) represented by formula (1) (wherein, n represents an integer of 2 to 10 and R1 represents a methyl group or an ethyl group), and at least one repeating unit (B) represented by formula (2) (wherein R2 represents an aliphatic hydrocarbon group); an antithrombotic coating agent containing the copolymer and an organic solvent; an antithrombotic coating film formed of the copolymer; and a medical device provided with the coating film.
    Type: Application
    Filed: January 24, 2017
    Publication date: March 28, 2019
    Applicants: Maruzen Petrochemical Co., Ltd., National University Corporation Yamagata University
    Inventors: Masaru TANAKA, Norihiro YOSHIDA