Patents by Inventor Jun Watanabe

Jun Watanabe 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: 11859044
    Abstract: Provided are a composition capable of forming a cured product with excellent hardness, scratch resistance, chemical resistance, and flexibility; and a polyisocyanate compound that can be used as a curing agent for the composition. The polyisocyanate compound is represented by Formula (1), wherein R1 to R3 are identical or different and are a group represented by Formula (1a), wherein L1 and L2 are identical or different and represent an alkylene group having from 1 to 10 carbons, m represents a number of 0 or greater, L3 represents a divalent hydrocarbon group having from 4 to 18 carbons, and X represents an isocyanate group or a blocked isocyanate group blocked with a blocking agent, where m is not simultaneously 0 for R1 to R3, and the bond with the wavy line bonds to a nitrogen atom in Formula (1). In addition, the composition contains a polyisocyanate compound and a polyacrylic polyol.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: January 2, 2024
    Assignee: DAICEL CORPORATION
    Inventors: Takashi Konno, Jun Watanabe, Shintarou Hatanaka
  • Patent number: 11846647
    Abstract: An inertial measurement unit includes: a sensor unit having an inertial sensor; and a first holding unit holding the sensor unit. The first holding unit includes: a first substrate; a second substrate; a plurality of spacers coupling the sensor unit and the first substrate; a first elastic member and a second elastic member provided on both sides of the first substrate via opening parts; a first fixing member penetrating, pressing and fixing the first substrate and the first elastic member to the second substrate; and a second fixing member penetrating, pressing and fixing the first substrate and the second elastic member to the second substrate.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: December 19, 2023
    Inventors: Jun Watanabe, Kenta Sato
  • Patent number: 11834758
    Abstract: A carbon fiber bundle that satisfies retaining a twist count of 2 turns/m or more when suspended with one end fixed and the other end free; having a single fiber diameter of 6.1 ?m or more and a heat loss rate at 450° C. of 0.15% or less, and formula (1) wherein Lc is crystallite size and ?002 is an orientation parameter of crystallites determined from bulk measurement of the entire fiber bundle: ?002>4.0×Lc+73.2 (1); and a carbon fiber bundle that satisfies: retaining a surface layer twist angle of 0.2° or more when suspended with one end fixed and the other end free; having a single fiber diameter of 6.1 ?m or more and a heat loss rate at 450° C. of 0.15% or less, and formula (1).
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: December 5, 2023
    Assignee: Toray Industries, Inc.
    Inventors: Haruki Okuda, Jun Watanabe, Fumihiko Tanaka
  • Publication number: 20230374342
    Abstract: To provide a curable composition capable of: forming a coating film having adhesion to a substrate surface; hardness; scratch resistance; and chemical resistance. The curable composition of the present disclosure contains a polyol compound (A) having an isocyanurate skeleton, an acrylic compound (B) containing a hydroxy group, and a polyisocyanate compound (C) having an isocyanurate skeleton and an isocyanate group besides the isocyanurate skeleton. The polyol compound (A) preferably contains a compound (a) represented by Formula (1) below. R1 to R3 in the formula are identical or different and are each a group represented by Formula (1a) below.
    Type: Application
    Filed: October 5, 2021
    Publication date: November 23, 2023
    Applicant: DAICEL CORPORATION
    Inventors: Takeru KAMADA, Naritoshi MAETSU, Jun WATANABE
  • Patent number: 11824197
    Abstract: An object of the present invention is to provide a composition for a positive electrode having high binding properties and high flexibility. A composition for a positive electrode, comprising: a graft copolymer-based resin; a polyvinylidene fluoride-based resin, wherein the graft copolymer-based resin includes a graft copolymer in which a monomer, having (meth)acrylonitrile as a main component, is graft-copolymerized with a polyvinyl alcohol. The graft copolymer-based resin optionally further includes at least one of a (meth)acrylonitrile-based non-graft polymer and a polyvinyl alcohol homopolymer. And, a slurry for a positive electrode comprising the composition. A positive electrode comprising a metal foil and a coating film of the slurry. The composition preferably has a mass ratio of the graft copolymer-based resin and the polyvinylidene fluoride resin, which is: graft copolymer-based resin/polyvinylidene fluoride-based resin=2/8 to 8/2.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: November 21, 2023
    Assignee: DENKA COMPANY LIMITED
    Inventors: Takuya Narutomi, Jun Watanabe, Shigeru Suzuki
  • Publication number: 20230348646
    Abstract: A composition that serves as a binder for a positive electrode with a good balance between suppression of battery performance degradation at a high-capacity electrode, high-temperature storage property, and DC resistance, a slurry for a positive electrode using the composition, a positive electrode, and a secondary battery. A free induction decay curve of the composition obtained by measuring at 180° C. by Solid Echo method using pulse NMR is separated into three components, component S180, component M180, and component H180, a component ratio of the component S180 is 10% or more and 80% or less, and a relaxation time of the component S180 is 500 ?s or more.
    Type: Application
    Filed: August 11, 2021
    Publication date: November 2, 2023
    Applicant: DENKA COMPANY LIMITED
    Inventors: Yuhei ISHIGAKI, Ryosuke KANTO, Jun WATANABE
  • Publication number: 20230351909
    Abstract: An academic ability estimation model generation device to generate an academic ability estimation model with which current academic ability is accurately estimated without requiring comprehensive learning data. The academic ability estimation model generation device includes a decision tree generator that generates a decision tree by using correct/incorrect-answer information as teacher data, the correct/incorrect-answer information indicating that a plurality of answerers who have answered a question group consisting of a plurality of predetermined questions have answered each question correctly or incorrectly; a pruner that deletes a leaf node when an entropy of a classification result indicated by the leaf node being a terminal end of the decision tree which is generated is equal to or lower than a predetermined value. Further, there is a category generator that sets each new terminal end of the decision tree after deleting the leaf node as a category to which any of the answerers belongs.
    Type: Application
    Filed: August 30, 2021
    Publication date: November 2, 2023
    Applicant: Z-kai Inc.
    Inventors: Jun WATANABE, Tomoya UEDA, Shoko WATANABE
  • Publication number: 20230324349
    Abstract: One mode of a method for analyzing acylcarnitine according to the present invention is a method for analyzing C5 acylcarnitine using a tandem mass spectrometer, the method including: a measurement step of performing MRM measurement on a specimen according to at least one of MRM transitions of m/z 24>187, m/z 246>57, m/z 246>41, and m/z 246>29; and a processing step of distinguishing between isovalerylcarnitine and pivaloylcarnitine which is an isomer of isovalervicarnitine in the specimen or determining whether or not C5 acylcarnitine in the specimen includes pivaloylcarnitine, using a measurement result obtained in the measurement step. This makes it possible to satisfactorily distinguish between isovalerylcarnitine and pivaloylcarnitine, which have been conventionally difficult to distinguish.
    Type: Application
    Filed: August 24, 2021
    Publication date: October 12, 2023
    Applicants: Shimadzu Corporation, NATIONAL UNIVERSITY CORPORATION SHIMANE UNIVERSITY
    Inventors: Takanari HATTORI, Jun WATANABE, Misa TANAKA, Hironori KOBAYASHI, Yoshitomo NOTSU
  • Publication number: 20230317951
    Abstract: A composition, serving as a binder with a good balance between suppression of battery performance degradation at a high-capacity electrode, high-temperature storage property, and DC resistance, a slurry for a positive electrode using the composition, a positive electrode, and a secondary battery. The composition includes a graft copolymer, wherein: the graft copolymer has a stem polymer and a branch polymer; the stem polymer contains a polyvinyl alcohol structure, the branch polymer contains a first monomer unit containing a (meth)acrylonitrile monomer unit and/or a (meth)acrylic acid monomer; the composition has a swelling rate to an electrolytic solution of 105 to 200% at 25° C. for 15 days; the swelling rate is a swelling rate after immersing the composition in the electrolytic solution at 25° C. for 15 days; and the electrolytic solution is obtained by mixing ethylene carbonate and diethyl carbonate at a volume ratio of 1:2.
    Type: Application
    Filed: August 11, 2021
    Publication date: October 5, 2023
    Applicant: DENKA COMPANY LIMITED
    Inventors: Ryosuke KANTO, Yuhei ISHIGAKI, Jun WATANABE
  • Publication number: 20230298478
    Abstract: An advice data generation device that is capable of generating advice data on how to write answers is provided. The advice data generation device includes: a time classification unit that classifies a time interval during which stroke data is present, in a predetermined time range defined as answering time, as an entering time interval based on the stroke data that is vector data of a coordinate of a trajectory of handwriting input and time, the handwriting input being performed by a user with respect to a predetermined electronic answer field to put an answer for a question; a time comparison unit that compares a length of each entering time interval of another user for each question with a length of each entering time interval of a target user for each question; and an advice generation unit that generates advice data representing a comparison result.
    Type: Application
    Filed: August 30, 2021
    Publication date: September 21, 2023
    Applicant: Z-kai Inc.
    Inventors: Jun WATANABE, Eisaku ONO
  • Publication number: 20230275233
    Abstract: A composition including a graft copolymer, wherein the graft copolymer has a stem polymer and a branch polymer; the stem polymer contains a polyvinyl alcohol structure, the branch polymer contains a first monomer unit containing a (meth)acrylonitrile monomer unit and/or a (meth)acrylic acid monomer; the composition has a gel fraction of 30% or more; the gel fraction is represented by following formula: the gel fraction %=A×100/1; A g is an insoluble content left on a filter pater when 1 g of the composition is added to 300 ml of dimethyl sulfoxide to obtain a mixture and the mixture is stirred at 60° C. for 15 hours and then filtered through the filter paper, which is a No. 5C filter paper as specified in JIS P 380.
    Type: Application
    Filed: August 11, 2021
    Publication date: August 31, 2023
    Applicant: DENKA COMPANY LIMITED
    Inventors: Ryosuke KANTO, Yuhei ISHIGAKI, Jun WATANABE
  • Publication number: 20230269495
    Abstract: This inventions provides an image capturing apparatus capable of obtaining an image corrected so as to have an image quality preference of a user by changing the degree of application of the 3D-LUT using only a single LUT processing circuit. To this, the image capturing apparatus that includes an image capturing unit, comprises an acquisition unit that acquires a first look-up table for converting image data, a setting unit that sets a degree of application of the first look-up table acquired by the acquisition unit, and a generation unit that generates a second look-up table from the first look-up table based on the degree of application set by the setting unit, wherein image data obtained by the image capturing unit is converted using the second look-up table generated by the generation unit.
    Type: Application
    Filed: February 14, 2023
    Publication date: August 24, 2023
    Inventors: Keisuke Matsuno, Jun Watanabe, Kohei Sato
  • Publication number: 20230193090
    Abstract: A composition for temporary bonding, includes: (A) a (meth)acrylate having the following (A-1) and (A-2): (A-1) a monofunctional (meth)acrylate whose side chain is an alkyl group having 18 or more carbon atoms and homopolymer has a Tg of ?100° C. to 60° C., and (A-2) a polyfunctional (meth)acrylate; (B) a polyisobutene homopolymer and/or a polyisobutene copolymer; and (C) a photo radical polymerization initiator.
    Type: Application
    Filed: May 17, 2021
    Publication date: June 22, 2023
    Applicant: DENKA COMPANY LIMITED
    Inventors: Tometomo UCHIDA, Toru ARAI, Takashi DOMOTO, Takako TANIGAWA, Jun WATANABE, Megumi SUDO, Jun YOSHIDA
  • Publication number: 20230200242
    Abstract: An n-type material for thermoelectric conversion obtained by doping a p-type material for thermoelectric conversion with a dopant, the p-type material for thermoelectric conversion containing a carbon nanotube and a conductive resin, in which the dopant contains an anion that is a complex ion, an alkali metal cation, and a cation scavenger.
    Type: Application
    Filed: May 20, 2021
    Publication date: June 22, 2023
    Applicant: Denka Company Limited
    Inventors: Yasuaki SAKURAI, Masahide YAMADA, Jun WATANABE
  • Patent number: 11669011
    Abstract: A template includes: a base material having a surface including a first pattern, a second pattern and a third pattern, the first pattern including a first recess, the second pattern including a second recess. The base material containing a first material having a first refractive index; a first layer disposed in the first recess and containing a second material, the second material having a second refractive index different from the first refractive index; and a second layer disposed in the second recess, containing the second material, and being thicker than the first layer.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: June 6, 2023
    Assignee: KIOXIA CORPORATION
    Inventors: Jun Watanabe, Anupam Mitra, Kazuya Fukuhara
  • Patent number: 11650470
    Abstract: Provided are a decorative film including a reflective layer which consists of a dielectric multi-layer film and develops a color due to an optical interference or a structural color, in which the dielectric multi-layer film has a plurality of regions having different reflection performances in an in-plane direction, at least one of the plurality of regions is a region having a specular reflectivity, and at least another one of the plurality of regions is a region having a diffuse reflectivity; and a molded product and an electronic device using the decorative film.
    Type: Grant
    Filed: April 26, 2022
    Date of Patent: May 16, 2023
    Assignee: FUJIFILM CORPORATION
    Inventors: Yuichi Hayata, Jun Watanabe
  • Publication number: 20230122509
    Abstract: Provided is a method by which the disaccharides derived from glycosaminoglycans can be analyzed in a stable and highly reproduceable manner. A method for analyzing a glycosaminoglycan according to the present invention includes: a first process for producing a plurality of kinds of disaccharides derived from a glycosaminoglycan in a biological sample by adding a plurality of kinds of glycosaminoglycan-specific enzymes to the biological sample: and a second process for separating and analyzing the plurality of kinds of disaccharides by a liquid chromatography-mass spectrometry method, where a column used for liquid chromatography in the liquid chromatography-mass spectrometry method is a column packed with a stationary-phase support to which an amide group as a functional group is bound, or a column packed with a stationary-phase support to which an adamantyl group as a functional group is bound.
    Type: Application
    Filed: October 14, 2021
    Publication date: April 20, 2023
    Applicants: SHIMADZU CORPORATION, NATIONAL UNIVERSITY CORPORATION SHIMANE UNIVERSITY
    Inventors: Takanari HATTORI, Jun WATANABE, Tetsuo IIDA, Misa TANAKA, Hironori KOBAYASHI, Shunji TOMATSU
  • Publication number: 20230108643
    Abstract: Provided are a composition capable of forming a cured product with excellent hardness, scratch resistance, chemical resistance, and flexibility; and a polyisocyanate compound that can be used as a curing agent for the composition. The polyisocyanate compound is represented by Formula (1), wherein R1 to R3 are identical or different and are a group represented by Formula (1a), wherein L1 and L2 are identical or different and represent an alkylene group having from 1 to 10 carbons, m represents a number of 0 or greater, L3 represents a divalent hydrocarbon group having from 4 to 18 carbons, and X represents an isocyanate group or a blocked isocyanate group blocked with a blocking agent, where m is not simultaneously 0 for R1 to R3, and the bond with the wavy line bonds to a nitrogen atom in Formula (1). In addition, the composition contains a polyisocyanate compound and a polyacrylic polyol.
    Type: Application
    Filed: February 17, 2021
    Publication date: April 6, 2023
    Applicant: DAICEL CORPORATION
    Inventors: Takashi KONNO, Jun WATANABE, Shintarou HATANAKA
  • Patent number: 11619648
    Abstract: An inertial measurement device includes: an inertial sensor; a battery supplying electric power to the inertial sensor; a first case accommodating the inertial sensor; and a second case accommodating the battery. The battery and the first case are spaced apart from each other. The second case is fixed outside the first case.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: April 4, 2023
    Inventors: Kenta Sato, Jun Watanabe
  • Publication number: 20230097214
    Abstract: A transmissive liquid crystal diffraction element includes a first optically-anisotropic layer and a second optically-anisotropic layer each of which has a liquid crystal alignment pattern in which a direction of an optical axis derived from a liquid crystal compound changes while continuously rotating in at least one in-plane direction, in which a rotation direction of the optical axis in the liquid crystal alignment pattern of the first optically-anisotropic layer and a rotation direction of the optical axis in the liquid crystal alignment pattern of the second optically-anisotropic layer are opposite to each other, and a single period of the liquid crystal alignment pattern in the first optically-anisotropic layer and a single period of the liquid crystal alignment pattern in the second optically-anisotropic layer are the same.
    Type: Application
    Filed: November 17, 2022
    Publication date: March 30, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Yukito SAITOH, Hiroshi SATO, Takashi YONEMOTO, Jun WATANABE, Mitsuyoshi ICHIHASHI, Keisuke KODAMA