Patents by Inventor Kenichi Yoshioka

Kenichi Yoshioka 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: 12112857
    Abstract: According to embodiments, a light water reactor uranium fuel assembly is capable of reducing heating values of both Am-241 and Cm-244, to reduce the amount of generated vitrified waste without using fast reactors. The light water reactor uranium fuel assembly is a light water reactor uranium fuel assembly to be used in a nuclear fuel cycle that extracts. An americium isotope is extracted at the time of reprocessing of spent fuel to be added to a fuel, in which a weight fraction W (unit: wt %) of americium 241 to be added to a fuel heavy metal is in ranges of W<?0.006e2+0.12e?0.43 (enrichment: 5 wt % or more), W<?0.000356e+0.00357 (enrichment: 4.2 wt % or more and less than 5.0 wt %) with respect to an average enrichment of uranium 235 e (unit: wt %) of the fuel assembly.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: October 8, 2024
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Kouji Hiraiwa, Kenichi Yoshioka, Rei Kimura, Satoshi Wada, Tsukasa Sugita
  • Patent number: 12078606
    Abstract: A gas sensor comprises a gas separation membrane comprising substituted polyacetylene where a substituent group is combined to a double-bonded carbon atom in the backbone chain of the substituted polyacetylene and a sensing element configured to detect gas permeated through the gas separation membrane.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: September 3, 2024
    Assignees: FIGARO ENGINEERING INC., UNIVERSITY OF FUKUI
    Inventors: Masakazu Sai, Kenichi Yoshioka, Kuniyuki Izawa, Toshikazu Sakaguchi
  • Patent number: 11977007
    Abstract: Siloxane compounds are removed from the atmospheres by silica supporting an organic sulfonic acid compound. The silica with the organic sulfonic acid compound has a specific surface area down to 500 m2/g and up to 750 m2/g and a pore volume down to 0.8 m3/g and up to 1.2 m3/g, both measured by nitrogen gas adsorption method and has a pore diameter down to 4 nm and up to 8 nm, at the peak of differential pore volume measured by nitrogen gas adsorption method. The durability of gas sensing element against siloxanes is improved.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: May 7, 2024
    Assignees: FIGARO ENGINEERING INC., NEW COSMOS ELECTRIC CO., LTD., UNIVERSITY PUBLIC CORPORATION OSAKA
    Inventors: Masato Takeuchi, Junpei Furuno, Kenta Fukui, Kenichi Yoshioka, Tatsuya Tanihira, Masakazu Sai, Takafumi Taniguchi, Hirokazu Mitsuhashi
  • Patent number: 11638895
    Abstract: The filter of a gas sensor comprises an inorganic porous support supporting both an organic sulfonic acid compound including sulfo group (—SO3H) and a Lewis acid having at least a metal element of transitional metal elements, Al element, Ga element, In element, Ge element, and Sn element. The Lewis acid loaded in the inorganic porous support adsorbs low concentration siloxanes. The organic sulfonic acid compound including sulfo group polymerizes adsorbed siloxanes in the filter so as not to desorb from the filter.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: May 2, 2023
    Assignees: Figaro Engineering Inc., University Public Corporation Osaka
    Inventors: Masato Takeuchi, Junpei Furuno, Tatsuya Tanihira, Kenichi Yoshioka
  • Publication number: 20220348499
    Abstract: A cement grout material is provided, which does not freeze even in an environment where the ambient temperature can be ?5° C. or below, and which does not require fuel or large-scaled equipment for maintaining curing temperature. Lithium nitrite is added to a cement grout material that contains cement, water and an admixture. By setting the weight ratio of the lithium nitrite to the cement to a value from 3 to 10% by weight, freezing of the grout material is able to be prevented even in an installation environment where the ambient temperature can be ?5° C. during the initial stage of installation. By setting the weight ratio of the lithium nitrite to the cement to a value from 4.5 to 8% by weight, freezing of the grout material is able to be prevented even in an installation environment where the ambient temperature can be ?10° C. during the initial stage of installation.
    Type: Application
    Filed: July 7, 2020
    Publication date: November 3, 2022
    Inventors: Kenichi YOSHIOKA, Yuhji SUDOH
  • Publication number: 20220328204
    Abstract: According to embodiments, a light water reactor uranium fuel assembly is capable of reducing heating values of both Am-241 and Cm-244, to reduce the amount of generated vitrified waste without using fast reactors. The light water reactor uranium fuel assembly is a light water reactor uranium fuel assembly to be used in a nuclear fuel cycle that extracts. An americium isotope is extracted at the time of reprocessing of spent fuel to be added to a fuel, in which a weight fraction W (unit: wt %) of americium 241 to be added to a fuel heavy metal is in ranges of W<?0.006e2+0.12e?0.43 (enrichment: 5 wt % or more), W<?0.000356e+0.00357 (enrichment: 4.2 wt % or more and less than 5.0 wt %) with respect to an average enrichment of uranium 235 e (unit: wt %) of the fuel assembly.
    Type: Application
    Filed: January 28, 2022
    Publication date: October 13, 2022
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Kouji HIRAIWA, Kenichi YOSHIOKA, Rei KIMURA, Satoshi WADA, Tsukasa SUGITA
  • Patent number: 11385195
    Abstract: A gas sensor and the drive circuit for the sensor are installed within a mobile electronic device. The gas sensor is intermittently heated to an operating temperature for detecting gases and kept at an ambient temperature for other periods. When a sensor of the mobile electronic device detects that the device is placed in a closed space, the heating of the metal oxide semiconductor is halted. When the sensor detects that the mobile electronic device has been taken out from the closed space, the heating of the metal oxide semiconductor is resumed. The poisoning of the gas sensor by siloxanes or the like is prevented.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: July 12, 2022
    Assignee: Figaro Engineering Inc.
    Inventors: Kenichi Yoshioka, Akiko Omori
  • Publication number: 20220163474
    Abstract: A gas sensor comprises a gas separation membrane comprising substituted polyacetylene where a substituent group is combined to a double-bonded carbon atom in the backbone chain of the substituted polyacetylene and a sensing element configured to detect gas permeated through the gas separation membrane.
    Type: Application
    Filed: March 17, 2020
    Publication date: May 26, 2022
    Inventors: Masakazu SAI, Kenichi YOSHIOKA, Kuniyuki IZAWA, Toshikazu SAKAGUCHI
  • Patent number: 11247409
    Abstract: Methods of co-bonding a first thermoset composite (TSC) and a second TSC to define a cured composite part are disclosed herein. The methods include partially curing the first TSC to a target state of cure (SOC) to define a first partially cured TSC. The partially curing is based, at least in part, on a maximum temperature of the first TSC during the partially curing and on an elapsed time that an actual temperature of the first TSC is greater than a threshold temperature. The methods further include combining the first partially cured TSC with the second TSC to define a partially cured TSC assembly and heating the partially cured TSC assembly to bond the first partially cured TSC to the second TSC, cure the partially cured TSC assembly, and produce a cured composite part.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: February 15, 2022
    Assignees: The Boeing Company, Toray Industries, Inc.
    Inventors: Karl M. Nelson, Travis James Sherwood, Hardik Dalal, Felix N. Nguyen, Dongyeon Lee, Kenichi Yoshioka, Hideo Andrew Koyanagi
  • Publication number: 20210310906
    Abstract: Siloxane compounds are removed from the atmospheres by silica supporting an organic sulfonic acid compound. The silica with the organic sulfonic acid compound has a specific surface area down to 500 m2/g and up to 750 m2/g and a pore volume down to 0.8 m3/g and up to 1.2 m3/g, both measured by nitrogen gas adsorption method and has a pore diameter down to 4 nm and up to 8 nm, at the peak of differential pore volume measured by nitrogen gas adsorption method. The durability of gas sensing element against siloxanes is improved.
    Type: Application
    Filed: May 1, 2020
    Publication date: October 7, 2021
    Inventors: Masato TAKEUCHI, Junpei FURUNO, Kenta FUKUI, Kenichi YOSHIOKA, Tatsuya TANIHIRA, Masakazu SAI, Takafumi TANIGUCHI, Hirokazu MITSUHASHI
  • Publication number: 20210262967
    Abstract: A micro-hotplate comprises a Si substrate having a cavity and a support layer over the cavity; at least an electrode; and a heater, both provided on the support layer. The electrode surrounds the heater and the heater is disposed inside the electrode. The power efficiency of the micro-hotplate is improved.
    Type: Application
    Filed: February 22, 2019
    Publication date: August 26, 2021
    Inventors: Yoshitaka TATARA, Masahito HONDA, Hiroaki NAGAI, Yoshiki ASHIHARA, Kuniyuki IZAWA, Masakazu SAI, Kenichi YOSHIOKA
  • Patent number: 10894067
    Abstract: Disclosed is a genome stability enhancer comprising, as an active ingredient, at least one member selected from the group consisting of enzyme-treated royal jelly, gnetum or its extract, and gnetin C.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: January 19, 2021
    Assignees: Yamada Bee Company, Inc., National Cancer Center, Tohoku University
    Inventors: Tomoki Ikuta, Shinobu Fukushima, Tomoki Tatefuji, Kenichi Yoshioka, Hitoshi Shirakawa
  • Publication number: 20200055261
    Abstract: Methods of co-bonding a first thermoset composite (TSC) and a second TSC to define a cured composite part are disclosed herein. The methods include partially curing the first TSC to a target state of cure (SOC) to define a first partially cured TSC. The partially curing is based, at least in part, on a maximum temperature of the first TSC during the partially curing and on an elapsed time that an actual temperature of the first TSC is greater than a threshold temperature. The methods further include combining the first partially cured TSC with the second TSC to define a partially cured TSC assembly and heating the partially cured TSC assembly to bond the first partially cured TSC to the second TSC, cure the partially cured TSC assembly, and produce a cured composite part.
    Type: Application
    Filed: March 15, 2018
    Publication date: February 20, 2020
    Inventors: Karl M. Nelson, Travis James Sherwood, Hardik Dalal, Felix N. Nguyen, Dongyeon Lee, Kenichi Yoshioka, Hideo Andrew Koyanagi
  • Publication number: 20200023017
    Abstract: Disclosed is a genome stability enhancer comprising, as an active ingredient, at least one member selected from the group consisting of enzymatically degraded royal jelly, gnetum or its extract, and gnetin C.
    Type: Application
    Filed: March 6, 2018
    Publication date: January 23, 2020
    Inventors: Tomoki Ikuta, Shinobu Fukushima, Tomoki Tatefuji, Kenichi Yoshioka, Hitoshi Shirakawa
  • Patent number: 10538637
    Abstract: Disclosed herein are an epoxy resin composition for fiber-reinforced composite materials which has low viscosity, high Tg, high elastic modulus, and excellent fracture toughness and a fiber-reinforced composite material using such an epoxy resin composition which has excellent thermal properties, compressive strength, impact resistance, fatigue resistance, and open-hole tensile strength and which is suitable for producing structural parts of aircraft and the like. The epoxy resin composition comprises at least a given bifunctional epoxy resin as a component (A), a liquid aromatic diamine curing agent as a component (B), and core-shell polymer particles as a component (C), wherein the core-shell polymer particles as the component (C) contain epoxy groups in their shell and have a volume-average particle size of 50 to 300 nm.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: January 21, 2020
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Toshiya Kamae, Shinji Kochi, Masayuki Miyoshi, Kenichi Yoshioka
  • Publication number: 20200001223
    Abstract: The filter of a gas sensor comprises an inorganic porous support supporting both an organic sulfonic acid compound including sulfo group (—SO3H) and a Lewis acid having at least a metal element of transitional metal elements, Al element, Ga element, In element, Ge element, and Sn element. The Lewis acid loaded in the inorganic porous support adsorbs low concentration siloxanes. The organic sulfonic acid compound including sulfo group polymerizes adsorbed siloxanes in the filter so as not to desorb from the filter.
    Type: Application
    Filed: February 19, 2018
    Publication date: January 2, 2020
    Inventors: Masato Takeuchi, Junpei Furuno, Tatsuya Tanihira, Kenichi Yoshioka
  • Publication number: 20190302046
    Abstract: A gas sensor and the drive circuit for the sensor are installed within a mobile electronic device. The gas sensor is intermittently heated to an operating temperature for detecting gases and kept at an ambient temperature for other periods. When a sensor of the mobile electronic device detects that the device is placed in a closed space, the heating of the metal oxide semiconductor is halted. When the sensor detects that the mobile electronic device has been taken out from the closed space, the heating of the metal oxide semiconductor is resumed. The poisoning of the gas sensor by siloxanes or the like is prevented.
    Type: Application
    Filed: December 28, 2017
    Publication date: October 3, 2019
    Inventors: Kenichi Yoshioka, Akiko Omori
  • Publication number: 20190137426
    Abstract: Through a silica-based adsorbent filter containing sulfo group, surrounding atmosphere is introduced to a gas sensing element. The diameter D in mm of an opening in a housing at a position covering the filter and the length L in mm of the filter along the direction from the opening toward the gas sensing element are related as 0.1?D?1.5, 2?L?12, L/D2/3?10, 5?L/D. The detection delay for a gas to be detected is kept within an allowable range, the size of the sensor is not made too large, and the long-term stability of the gas sensor is improved.
    Type: Application
    Filed: May 11, 2017
    Publication date: May 9, 2019
    Inventor: Kenichi Yoshioka
  • Patent number: 10060989
    Abstract: A board connection terminal (15) is connected to a circuit board that detects a current having flowed through a resistor element (10). The board connection terminal (15) includes an intermediate part (31) and two connecting parts (30) integrated with one another. The intermediate part (31) has a substantially linear shape, and is connected to a shunt resistor (7). The two connecting parts (30) have proximal ends thereof located at opposite ends of the intermediate part (31), and protrude in a direction substantially perpendicular to the intermediate part (31), to be connected to the circuit board. The two connecting parts (30) are arranged substantially in parallel to each other. The board connection terminal (15) comprises two board connection terminals (15) that are arranged with the resistor element (10) sandwiched therebetween. Contact resistance between the intermediate part (31) and the shunt resistor (7) is lower than conductor resistance of the intermediate part (31).
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: August 28, 2018
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.
    Inventors: Kenichi Yoshioka, Shinya Saito, Yuuichi Watanabe, Yuji Matsui
  • Patent number: 9963586
    Abstract: Embodiments herein relate to a prepreg comprising a thermosetting resin, and reinforcing fibers in the thermosetting resin, wherein when the prepreg is cured in vacuum bag only conditions, and a method of making the same. The method also applies for autoclave processing. Embodiments also relate to a cured fiber reinforced composite material made by thermally curing the prepreg.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: May 8, 2018
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Jonathan C Hughes, Jeffrey A Satterwhite, Nobuyuki Arai, Atsuhito Arai, Alfred P Haro, Kenichi Yoshioka