Patents by Inventor Daisuke Sato

Daisuke Sato 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: 20190257032
    Abstract: The present invention provides a fine cellulose fiber sheet, of which various properties and functions such as paper making ability, solvent resistance, adhesion, functionalization agent immobilization, surface zeta potential, hydrophilicity, hydrophobicity, and air permeation resistance are finely controlled, through a process having low environmental impact. A fine cellulose fiber sheet according to the present invention fulfills all of the following requirements (1) to (3): (1) comprises fine cellulose fibers having an average fiber diameter of 2 nm or greater and 1000 nm or less; (2) the weight ratio of the fine cellulose fibers is 50 wt % or greater and 99 wt % or less; and (3) the block polyisocyanate aggregate content as a weight ratio is 1 to 100 wt % of the weight of the fine cellulose fibers.
    Type: Application
    Filed: May 1, 2019
    Publication date: August 22, 2019
    Applicant: Asahi Kasei Fibers Corporation
    Inventors: Kazufumi KAWAHARA, Daisuke SATO, Hirofumi ONO, Yamato Saito
  • Publication number: 20190256959
    Abstract: A method for producing a metal cylinder includes preparing a metal slug having a surface adjusted so that the crystal grain diameter at a depth of 10 ?m from the surface is smaller than that at a depth of 100 ?m from the surface, and the crystal grain diameter at a depth of 10 ?m from the surface is 30 ?m or more and 120 ?m or less; and forming a cylinder by impact pressing of the metal slug having the surface as a bottom.
    Type: Application
    Filed: May 2, 2019
    Publication date: August 22, 2019
    Applicant: Fuji Xerox Co., Ltd.
    Inventors: Daisuke HARUYAMA, Akira Sato, Hiroshi Tamemasa
  • Patent number: 10388984
    Abstract: A method for producing a graphite powder for a negative electrode of a lithium ion secondary battery, including a process of graphitizing a mixture of a carbon raw material powder and a silicon carbide powder, wherein a 90% particle diameter in a volume-based cumulative particle size distribution by laser diffraction method, D90, is 1 to 40 ?m, a silicon carbide content in a total mass of a carbon raw material and silicon carbide (mass of silicon carbide/total mass of the carbon raw material and silicon carbide) is 1 to 35 mass %, the ratio of a 50% particle diameter in a volume-based cumulative particle size distribution by laser diffraction method, D50, of the carbon raw material powder to D50 of silicon carbide powder (D50 of the carbon raw material powder/D50 of silicon carbide powder) is 0.40 to 4.0.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: August 20, 2019
    Assignee: SHOWA DENKO K.K
    Inventors: Yasuaki Wakizaka, Yoshikuni Sato, Daisuke Miyamoto
  • Patent number: 10381319
    Abstract: A core material including a core and a solder plating layer of a (Sn—Bi)-based solder alloy made of Sn and Bi on a surface of the core. Bi in the solder plating layer is distributed in the solder plating layer at a concentration ratio in a predetermined range of, for example, 91.7% to 106.7%. Bi in the solder plating layer is homogeneous, and thus, a Bi concentration ratio is in a predetermined range over the entire solder plating layer including an inner circumference side and an outer circumference side in the solder plating layer.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: August 13, 2019
    Assignee: Senju Metal Industry Co., Ltd.
    Inventors: Tomoaki Nishino, Shigeki Kondo, Takahiro Hattori, Hiroyoshi Kawasaki, Takahiro Roppongi, Daisuke Soma, Isamu Sato
  • Patent number: 10374796
    Abstract: Provided is a high-speed and light-weighted authentication system that makes IP address filtering possible and does not impair real-time property even on a network including many and unspecific entities (communication devices). In a communication system that a plurality of communication devices are coupled together such that mutual communication is possible over the network, the communication devices communicate with a server under a secure environment, when authentication has been obtained from the server, random seeds of the same value and individual identifiers are issued to them, each communication device generates the IP address that includes a pseudorandom number and the identifier, and the communication devices establish communication between the communication devices that include the pseudorandom numbers that are mutually the same in their IP addresses.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: August 6, 2019
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Daisuke Oshida, Yoshiyuki Sato, Yasuhiro Sagesaka, Takeshi Itome
  • Patent number: 10370771
    Abstract: A Cu core ball and a method of manufacturing such a Cu core ball. Purity of the Cu internal ball is at least 99.9% and not greater than 99.995%. A total contained amount of Pb and/or Bi in impurity contained in the Cu ball is equal to or larger than 1 ppm. Its sphericity is at least 0.95. A solder plating film coated on the Cu ball is of Sn solder or a lead free solder alloy whose primary component is Sn. In the solder plating film, a contained amount of U is not more than 5 ppb and that of Th is not more than 5 ppb. A total alpha dose of the Cu ball and the solder plating film is not more than 0./0200 cph/cm2. An arithmetic average roughness of the Cu core ball is equal to or less than 0.3 ?m.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: August 6, 2019
    Assignee: Senju Metal Industry Co., Ltd.
    Inventors: Hiroyoshi Kawasaki, Takahiro Roppongi, Daisuke Soma, Isamu Sato
  • Publication number: 20190237763
    Abstract: A graphite material, including high crystallinity graphite and spherical graphite, in which high crystallinity graphite: (1) a rhombohedral crystal ratio by X-ray diffractometry is 0.02 or less, (2) Lc is 90 nm or more, (3) when a pressure of 1 GPa for 10 seconds is applied to the high crystallinity graphite, the increment rate of the BET specific surface area after applying the pressure to the BET specific surface area before applying the pressure is 90% or less, and (4) D10 is 5.0 ?m or more; and in which spherical graphite: (1) a median of the circularity is 0.90 or more, and (2) a tapping density is 1.20 g/cm3 or more; and the ratio by mass of the high crystallinity graphite and the spherical graphite is 95:5 to 40:60; an electrode using the graphite material as an electrode active material; and a lithium ion secondary battery using the electrode.
    Type: Application
    Filed: June 19, 2017
    Publication date: August 1, 2019
    Applicant: SHOWA DENKO K.K.
    Inventors: Yasuaki WAKIZAKA, Yoshikuni SATO, Daisuke MIYAMOTO, Shunsuke YOSHIOKA, Daisuke KONO, Ayaka IKADO
  • Publication number: 20190236472
    Abstract: A manufacturing assistance apparatus includes a learning unit and an estimator. The learning unit is configured to load a plurality of pieces of actual measurement data in each of which a gap and a plurality of parameters are associated with each other, and construct an estimation model on the basis of machine learning in which the plurality of pieces of actual measurement data serve as teacher data. The gap is provided between a first workpiece and a second workpiece that eventually structure an airframe of an aircraft and that are eventually fastened to each other. The estimation model estimates the gap from the plurality of parameters. The estimator is configured to derive an estimation value of a length of the gap on which measurement has not yet been performed, on the basis of the estimation model constructed by the learning unit and the plurality of parameters.
    Type: Application
    Filed: December 4, 2018
    Publication date: August 1, 2019
    Applicant: SUBARU CORPORATION
    Inventors: Toshimasa KOBAYASHI, Marosuke KIKUCHI, Yoichi SATO, Yuki MATSUDA, Toshimichi OGISU, Daisuke HIRABAYASHI, Kei SUZUKI, Toru ONISHI, Haruka MIYANISHI
  • Patent number: 10364360
    Abstract: A surface coating material is provided for forming a hydrophilic oil repellent layer on at least a part of the surface of a substrate, and the surface coating material includes one or more fluorine-based compounds represented by the following formulas (1) to (4), a binder, and a solvent.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: July 30, 2019
    Assignees: Mitsubishi Materials Corporation, Mitsubishi Materials Electronic Chemicals Co., Ltd.
    Inventors: Masakazu Uotani, Hiroshi Koshiyama, Takeshi Kamiya, Tsunetoshi Honda, Kosei Sato, Masato Fujita, Daisuke Takano
  • Patent number: 10351350
    Abstract: This table circulation guide device includes sliders and carriage attached to a table. In a working area, the table is guided by the sliders straddling straight track rails. In a non-working area, the table is guided by the carriages traveling on a curved track rail. An endless circulation circuit is formed by the straight track rails and the curved track rail. In the working area of the circuit, the table travels via the sliders straddling the straight track rails. In the non-working area of the circuit, the table travels via the carriages located between the sliders.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: July 16, 2019
    Assignee: NIPPON THOMPSON CO., LTD.
    Inventors: Tsuguyoshi Nara, Masashi Matsui, Daisuke Sato
  • Patent number: 10344655
    Abstract: An exhaust gas purification catalyst having an excellent exhaust partition ability while reducing the increase in pressure loss. Exhaust gas purification catalyst includes a substrate having a wall-flow structure with partition wall, upstream coating section formed in portions of partition wall facing entrance cell, from exhaust inlet-side end in the extending direction of partition wall, and downstream coating section formed in portions of partition wall facing exit cell, from exhaust outlet-side end in the extending direction, having a length shorter than the entire length Lw of the partition wall. In downstream coating section, a catalytic metal is concentrated in the surface layer in contact with exit cell.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: July 9, 2019
    Assignees: CATALER CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryota Onoe, Shingo Sakagami, Tsuyoshi Ito, Yuta Morishita, Masahiko Takeuchi, Naoto Miyoshi, Akemi Sato, Daisuke Ochiai
  • Patent number: 10335771
    Abstract: An aqueous dispersion of an embodiment includes visible-light responsive photocatalytic composite microparticles containing tungsten oxide and zirconium oxide, and an aqueous dispersion medium in which the photocatalytic composite microparticles are dispersed. In the photocatalytic composite microparticles, a ratio of a mass of the zirconium oxide to a mass of the tungsten oxide is in a range of from 0.05% to 200%, and a D50 particle size in particle size distribution is in a range of from 20 nm to 10 ?m. The aqueous dispersion has pH in a range of from 1 to 9.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: July 2, 2019
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd.
    Inventors: Daisuke Fukushi, Takao Kusaka, Akira Sato, Kayo Nakano, Akihisa Nitsuta, Yukiko Inui, Hiroyasu Oota
  • Publication number: 20190195440
    Abstract: A method for detecting abnormality in a light emitting device including a semiconductor laser element that is pulse-driven by pulse-control to emit excitation light, a wavelength conversion member including a phosphor and that emits fluorescent light by being irradiated with the excitation light, and a light receiving element disposed on a light extraction side of the wavelength conversion member and that detects the excitation light, the method includes: pulse-controlling an applied voltage with a pulse width shorter than a time from a start of voltage application until an optical intensity of light extracted from the wavelength conversion member reaches a maximum intensity, thereby pulse-driving the semiconductor laser element to achieve laser oscillation; measuring an optical intensity of the excitation light, or optical intensities of both the excitation light and the fluorescent light; and determining whether or not the optical intensity or the optical intensities falls within a prescribed range.
    Type: Application
    Filed: November 27, 2018
    Publication date: June 27, 2019
    Inventor: Daisuke SATO
  • Patent number: 10329652
    Abstract: A method for producing a metal cylinder includes preparing a metal slug having a surface adjusted so that the crystal grain diameter at a depth of 10 ?m from the surface is smaller than that at a depth of 100 ?m from the surface, and the crystal grain diameter at a depth of 10 ?m from the surface is 30 ?m or more and 120 ?m or less; and forming a cylinder by impact pressing of the metal slug having the surface as a bottom.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: June 25, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Daisuke Haruyama, Akira Sato, Hiroshi Tamemasa
  • Patent number: 10327445
    Abstract: In one embodiment, an antiviral material includes at least one microparticles selected from tungsten oxide microparticles and tungsten oxide composite microparticles. The microparticles have an inactivation effect R of 1 or more expressed by [R=log C?log A], when there is evaluated a virus titer by inoculating on a specimen to which the microparticles are adhered, at least one virus selected from a low pathogenic avian influenza virus (H9N2), a high pathogenic avian influenza virus (H5N1) and a swine influenza virus, and irradiating the specimen with visible light having a wavelength of 380 nm or more and illuminance of 6000 lx. for 24 hours.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: June 25, 2019
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MATERIALS CO., LTD.
    Inventors: Kayo Nakano, Akira Sato, Takao Kusaka, Shinya Kasamatsu, Akito Sasaki, Daisuke Fukushi
  • Publication number: 20190185643
    Abstract: Provided is a rubber composition for tires which contains: a rubber component including an aromatic vinyl-conjugated diene copolymer that contains aromatic vinyl units and conjugated diene units, a high-cis polybutadiene rubber having a cis microstructure content of 95% by mass or higher, and an isoprene-based rubber; carbon black; and a silica having a N2SA of 40 m2/g or more, the copolymer containing at least 80% of isolated aromatic vinyl units based on the total aromatic vinyl units, the copolymer having a ?Tg of more than 10° C. but less than 20° C. as determined by DSC, the rubber component including, based on 100% by mass thereof, 1-45% by mass of the copolymer, 20-64% by mass of the high-cis polybutadiene rubber, and 35-60% by mass of the isoprene-based rubber, the rubber composition containing 5 parts by mass or more of the silica per 100 parts by mass of the rubber component.
    Type: Application
    Filed: November 28, 2018
    Publication date: June 20, 2019
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Shoko MORI, Takahiro MABUCHI, Daisuke SATO
  • Publication number: 20190184745
    Abstract: Provided is a pneumatic tire that provides a balanced improvement of tensile strength and fuel economy. Included is a rubber composition for tires containing: a rubber component including an aromatic vinyl-conjugated diene copolymer that contains aromatic vinyl units derived from an aromatic vinyl compound and conjugated diene units derived from a conjugated diene compound; carbon black; and silica, the copolymer containing at least 80% of isolated aromatic vinyl units based on the total aromatic vinyl units, the copolymer having a ?Tg of more than 10° C. but less than 20° C. as determined by DSC, the rubber component including, based on 100% by mass thereof, 10% by mass or more of the copolymer, the rubber composition containing 10 parts by mass or more of the silica per 100 parts by mass of the rubber component.
    Type: Application
    Filed: November 28, 2018
    Publication date: June 20, 2019
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masaki OSHIMO, Daisuke SATO, Takahiro MABUCHI
  • Publication number: 20190184746
    Abstract: Provided is a pneumatic tire that provides a balanced improvement of abrasion resistance, wet grip performance, and fuel economy. A rubber composition for tires containing: a rubber component including an aromatic vinyl-conjugated diene copolymer that contains aromatic vinyl units derived from an aromatic vinyl compound and conjugated diene units derived from a conjugated diene compound; carbon black; and a silica having a N2SA of 40 m2/g or more, the copolymer containing at least 80% of isolated aromatic vinyl units based on the total aromatic vinyl units, the copolymer having a ?Tg of more than 10° C. but less than 20° C. as determined by DSC, the rubber component including, based on 100% by mass thereof, 1-60% by mass of the copolymer and 0-99% by mass of an isoprene-based rubber, the rubber composition containing 10 parts by mass or more of the silica per 100 parts by mass of the rubber component.
    Type: Application
    Filed: November 28, 2018
    Publication date: June 20, 2019
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masaki OSHIMO, Daisuke SATO, Takahiro MABUCHI
  • Publication number: 20190185645
    Abstract: Provided is a pneumatic tire that provides a balanced improvement of abrasion resistance, wet grip performance, and fuel economy. A rubber composition for tires containing: a rubber component including an aromatic vinyl-conjugated diene copolymer that contains aromatic vinyl units derived from an aromatic vinyl compound and conjugated diene units derived from a conjugated diene compound; carbon black; and a silica having a N2SA of 40 m2/g or more, the copolymer containing at least 80% of isolated aromatic vinyl units based on the total aromatic vinyl units, the copolymer having a ?Tg of more than 10° C. but less than 20° C. as determined by DSC, the rubber component including, based on 100% by mass thereof, 1-90% by mass of the copolymer and 0-70% by mass of an isoprene-based rubber, the rubber composition containing 10 parts by mass or more of the silica per 100 parts by mass of the rubber component.
    Type: Application
    Filed: December 3, 2018
    Publication date: June 20, 2019
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masaki OSHIMO, Daisuke SATO, Takahiro MABUCHI
  • Patent number: D852734
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: July 2, 2019
    Assignee: THE YOKOHAMA RUBBER CO., LTD.
    Inventors: Daisuke Tanaka, Kenichi Sato