Patents by Inventor Yutaka Takeuchi

Yutaka Takeuchi 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: 20210088920
    Abstract: An electrostatic charge image development toner contains toner particles and layered-structure compound particles. The layered-structure compound particles have a crystallite diameter of 150 ? or more and 250 ? or less as calculated from a maximum peak width in a Cu K? X-ray diffraction chart and have a number-average particle diameter Dn of 0.3 ?m or more and 2.0 ?m or less. The ratio Dn/Dv of a number-average particle diameter Dn of the layered-structure compound particles to a volume-average particle diameter Dv of the toner particles is 0.03 or more and 0.7 or less.
    Type: Application
    Filed: April 6, 2020
    Publication date: March 25, 2021
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yutaka SAITO, Daisuke NOGUCHI, Sakiko TAKEUCHI
  • Publication number: 20210088923
    Abstract: An electrostatic-image developing toner includes toner particles, layered compound particles, and a free oil. The mass ratio Ma/Mb of the content Ma of the layered compound particles to the content Mb of the free oil is 0.05 or more and 100 or less.
    Type: Application
    Filed: April 7, 2020
    Publication date: March 25, 2021
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Sakiko TAKEUCHI, Daisuke NOGUCHI, Yuka YAMAGISHI, Yutaka SAITO, Kazuhiko NAKAMURA
  • Publication number: 20210088921
    Abstract: An electrostatic-image developing toner includes toner particles, layered compound particles, and inorganic particles. The inorganic particles have an average circularity of 0.910 or more and 0.995 or less. A ratio Da/Db of a number-average particle size Da of the layered compound particles to a number-average particle size Db of the inorganic particles is 1.2 or more and 43 or less.
    Type: Application
    Filed: April 7, 2020
    Publication date: March 25, 2021
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yuka YAMAGISHI, Daisuke NOGUCHI, Sakiko TAKEUCHI, Kazuhiko NAKAMURA, Yutaka SAITO
  • Publication number: 20210088919
    Abstract: An electrostatic charge image development toner that is negatively chargeable contains toner particles and layered-structure compound particles. The layered-structure compound particles have a volume-average particle diameter Da of 0.4 ?m or more and less than 3.0 ?m. The ratio Da/Db of the volume-average particle diameter Da of the layered-structure compound particles to the volume-average particle diameter Db of the toner particles is 0.044 or more and 0.625 or less.
    Type: Application
    Filed: April 6, 2020
    Publication date: March 25, 2021
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Daisuke NOGUCHI, Yuka YAMAGISHI, Sakiko TAKEUCHI, Kazuhiko NAKAMURA, Yutaka SAITO
  • Publication number: 20200319571
    Abstract: An electrophotographic developer is provided. The electrophotographic developer comprises a toner and a carrier. The toner contains alumina particles. The carrier comprises a core particle and a resin layer coating a surface of the core particle. The carrier has a volume average particle diameter (Dv) of from 45 to 70 ?m and a bulk density of from 2.1 to 2.5 g/cm3.
    Type: Application
    Filed: March 31, 2020
    Publication date: October 8, 2020
    Inventors: Kento TAKEUCHI, Yutaka MAKIBE, Kenichi MASHIKO, Masato TAIKOJI, Kei NIWAYAMA
  • Publication number: 20200307312
    Abstract: A drive shaft is configured by joining solid stub shafts formed of a medium carbon steel to both ends of a hollow tubular body formed of a medium carbon steel. When expressed as grain size number, the grain size of the hollow tubular body at joint parts where the hollow tubular body and the solid stub shafts are joined together ranges from #5 to #9, and the grain size of the solid stub shafts at the joint parts ranges from #10 to #12.
    Type: Application
    Filed: March 24, 2020
    Publication date: October 1, 2020
    Inventors: Mitsuru Kamikawa, Naoto Shibata, Ko Sugai, Masafumi Yamamoto, Takafumi Murakami, Kazuya Kumei, Yutaka Takeuchi, Masaki Kawamura
  • Publication number: 20200256868
    Abstract: An immunoassay apparatus may include: a sample dispenser part that dispenses a sample into a first reaction container; a reagent dispenser part that dispenses, into the first reaction container: a solid-phase reagent containing a solid-phase carrier; a labeled reagent; and a releasing reagent that releases, from the solid-phase carrier, an immune complex including a target substance and a labeled substance; a measurement part that measures a signal based on the labeled substance in the immune complex in a second reaction container; a container supply part that stores a plurality of reaction containers; a transfer part that transfers the first reaction container so that the sample dispenser part and the reagent dispenser part perform a dispensing operation to the first reaction container, and that transfers the second reaction container so that the immune complex dispended from the first reaction container is dispensed into the second container.
    Type: Application
    Filed: April 30, 2020
    Publication date: August 13, 2020
    Applicant: SYSMEX CORPORATION
    Inventors: Toshiyuki SATO, Toshikatsu FUKUJU, Shuhei KANEKO, Atsushi AOKI, Tomohiro OKUZAKI, Yasuhiro TAKEUCHI, Yutaka KAWAMOTO
  • Patent number: 10739690
    Abstract: A toner for electrostatic image development includes: toner base particles containing at least a nonionic surfactant, a binder resin, and a release agent; and an external additive. The content of the nonionic surfactant is from 0.05% by mass to 1% by mass inclusive based on the total mass of the toner, and the external additive contains particles with an arithmetic mean particle diameter of from 50 nm to 400 nm inclusive. The amount of the external additive released is 5% by mass or less.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: August 11, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Sakiko Takeuchi, Yutaka Saito, Yuka Yamagishi, Kazuhiko Nakamura
  • Patent number: 10725393
    Abstract: A toner for electrostatic image development includes: toner base particles containing at least a nonionic surfactant, a binder resin, and a release agent; and an external additive. The content of the nonionic surfactant is from 0.05% by mass to 1% by mass inclusive based on the total mass of the toner. The external additive contains inorganic particles having an arithmetic mean particle diameter of from 50 nm to 400 nm inclusive and an average circularity of from 0.5 to 0.8 inclusive.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: July 28, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yuka Yamagishi, Yutaka Saito, Kazuhiko Nakamura, Kazutsuna Sasaki, Takashi Inukai, Sakiko Takeuchi
  • Patent number: 10648973
    Abstract: An immunoassay apparatus may include: a sample dispenser part that dispenses a sample into a first reaction container; a reagent dispenser part that dispenses, into the first reaction container,: a solid-phase reagent containing a solid-phase carrier; a labeled reagent; and a releasing reagent that releases, from the solid-phase carrier, an immune complex including a target substance and a labeled substance; a measurement part that measures a signal based on the labeled substance in the immune complex in a second reaction container; a container supply part that stores a plurality of reaction containers; a transfer part that transfers the first reaction container so that the sample dispenser part and the reagent dispenser part perform a dispensing operation to the first reaction container, and that transfers the second reaction container so that the immune complex dispended from the first reaction container is dispensed into the second container.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: May 12, 2020
    Assignee: SYSMEX CORPROATION
    Inventors: Toshiyuki Sato, Toshikatsu Fukuju, Shuhei Kaneko, Atsushi Aoki, Tomohiro Okuzaki, Yasuhiro Takeuchi, Yutaka Kawamoto
  • Publication number: 20200026206
    Abstract: The present invention provides an electrophotographic photoreceptor including a photosensitive layer containing an electron transport material, and having high pressure resistance and suppressed occurrence of a leak phenomenon, a method for producing the same, and an electrophotographic device using the same. The electrophotographic photoreceptor includes an electrically conductive support containing an aluminum alloy; an anodic oxide film formed on a surface of the electrically conductive support; and a photosensitive layer formed on the anodic oxide film. The photosensitive layer contains an electron transport material having an electron mobility of 10?7 cm2/V/sec or more when field intensity is set to 20 V/?m. The surface of the electrically conductive support having the anodic oxide film formed thereon has an admittance value that is 25 ?S or more and 60 ?S or less.
    Type: Application
    Filed: September 30, 2019
    Publication date: January 23, 2020
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventors: Hirotaka KOBAYASHI, Yutaka IKEDA, Yuji OGAWA, Masaru TAKEUCHI
  • Patent number: 10300523
    Abstract: A crankshaft that can be strengthened in a short time without being subjected to wasteful processing, and that can be strengthened over a wide range. The crankshaft includes a crank pin and a fillet portion of a journal pin. Compressive residual stress is applied to a region on the fillet portion, which extends at almost equal distances to both sides in a circumferential direction from a portion in which the greatest bending load is applied, and a processing depth for applying the compressive residual stress is gradually decreased in a circumferential direction from the center position in which the compressive residual stress is greatest.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: May 28, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Toshiyuki Tanaka, Daisuke Miura, Takuro Yoshimura, Yutaka Takeuchi, Daisuke Koshino
  • Publication number: 20180035652
    Abstract: The transplant fish production method includes selecting a donor fish species, selecting first and second fish species which are a combination that could be sterile, producing a hybrid fish species of the selected first fish species and second fish species, and transplanting reproductive cells of the donor fish species into the produced hybrid fish species.
    Type: Application
    Filed: September 25, 2017
    Publication date: February 8, 2018
    Applicant: National University Corporation Tokyo University of Marine Science and Technology
    Inventors: Goro YOSHIZAKI, Yutaka TAKEUCHI, Ryosuke YAZAWA, Wataru KAWAMURA
  • Publication number: 20170165742
    Abstract: A crankshaft that can be strengthened in a short time without being subjected to wasteful processing, and that can be strengthened over a wide range. The crankshaft includes a crank pin and a fillet portion of a journal pin. Compressive residual stress is applied to a region on the fillet portion, which extends at almost equal distances to both sides in a circumferential direction from a portion in which the greatest bending load is applied, and a processing depth for applying the compressive residual stress is gradually decreased in a circumferential direction from the center position in which the compressive residual stress is greatest.
    Type: Application
    Filed: March 16, 2015
    Publication date: June 15, 2017
    Inventors: Toshiyuki Tanaka, Daisuke Miura, Takuro Yoshimura, Yutaka Takeuchi, Daisuke Koshino
  • Patent number: 9177676
    Abstract: Provide a nuclear reactor power monitoring technology for enhancing the monitoring accuracy and reliability in nuclear thermal hydraulic stability.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: November 3, 2015
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yutaka Takeuchi, Hiroshi Ono, Kazuki Yano
  • Patent number: 8983810
    Abstract: An apparatus for monitoring nuclear thermal hydraulic stability of a nuclear reactor, contains: a calculation unit configured to calculate a stability index of a nuclear thermal hydraulic phenomenon based on nuclear instrumentation signals, the signals being outputted by a plurality of nuclear instrumentation detectors placed at regular intervals in a reactor core; a simulation unit configured to simulate the nuclear thermal hydraulic phenomenon based on a physical model by using information on an operating state of the nuclear reactor as an input condition; a limit value updating unit configured to update a limit value of the nuclear thermal hydraulic phenomenon based on a result of the simulation; and a determination unit configured to determine, based on the stability index and the limit value, whether or not to activate a power oscillation suppressing device.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: March 17, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yutaka Takeuchi, Hiroyuki Takeuchi, Kazuki Yano
  • Publication number: 20150015934
    Abstract: An electrophoretic apparatus includes: an electrophoretic layer that is disposed between an element substrate and a counter substrate, and has a dispersion medium in which electrophoretic particles are dispersed; a partition wall that is disposed to separate the electrophoretic layer into a plurality of cells; a seal material that bonds the element substrate and the counter substrate, and is disposed so as to surround the electrophoretic layer; and a sealing film that is disposed at least between the partition wall and the counter substrate, and has no adhesive material, in which a top section of the partition wall is disposed in the sealing film.
    Type: Application
    Filed: July 8, 2014
    Publication date: January 15, 2015
    Inventors: Tadashi YAMADA, Hiroki NAKAHARA, Yutaka TAKEUCHI, Daisuke ABE, Toru KATAKABE
  • Publication number: 20140355730
    Abstract: According to one embodiment, a reactor oscillation power range monitor includes: a receiving unit configured to receive LPRM signals issued by LPRM detectors differing in vertical position out of a plurality of LPRM detectors placed in a reactor core; a specification unit configured to specify any exclusion signal which meets an exclusion condition out of the received LPRM signals; an estimation unit configured to estimate an alternative signal for the exclusion signal based on a regular signal which does not meet the exclusion condition out of the received LPRM signals; an arithmetic averaging unit configured to output an arithmetically averaged signal obtained by arithmetically averaging the regular signal and the alternative signal; a time averaging unit configured to output a time-averaged signal obtained by time-averaging the arithmetically averaged signal; and a calculation unit configured to output a standard value obtained by dividing the arithmetically averaged signal by the time-averaged signal.
    Type: Application
    Filed: May 29, 2014
    Publication date: December 4, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: SEIGO SATO, TADASHI MIYAZAKI, TOSHIAKI ITO, NAOTAKA ODA, YASUSHI GOTO, YUTAKA TAKEUCHI, KAZUKI YANO, NORIO SAKAI
  • Patent number: 8675808
    Abstract: A natural-circulation type boiling water reactor includes a plurality of divided chimneys provided above a reactor core and a number of fuel assemblies are charged in the reactor core. The natural-circulation type boiling water reactor is provided with a pressure equalization structure arranged on rectangular-columnar lattice plates of the divided chimneys for equalizing pressures in divided chimney portions so as to equalize the pressures of the divided chimneys with the pressure equalization structure.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: March 18, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Nobuaki Abe, Yutaka Takeuchi, Yukio Takigawa, Mikihide Nakamaru
  • Publication number: 20130058447
    Abstract: Provide a nuclear reactor power monitoring technology for enhancing the monitoring accuracy and reliability in nuclear thermal hydraulic stability.
    Type: Application
    Filed: May 11, 2011
    Publication date: March 7, 2013
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yutaka Takeuchi, Hiroshi Ono, Kazuki Yano