Patents by Inventor Tomoyuki Fujita

Tomoyuki Fujita 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: 12099735
    Abstract: A memory system includes a memory controller configured to write data in a first mode to a first block of a first area of a non-volatile memory. The first mode is a write mode for writing data with a first number of bits per memory cell. The memory controller is further configured to execute copy processing on the data written in the first mode to the first block, by writing system data written in the first block to a second block of the first area in the first mode and writing user data written in the first block to a third block of a second area of the non-volatile memory in the second mode. The second mode is a write mode for writing data with a second number of bits larger than the first number of bits per memory cell.
    Type: Grant
    Filed: February 28, 2023
    Date of Patent: September 24, 2024
    Assignee: Kioxia Corporation
    Inventors: Tomoyuki Kantani, Kousuke Fujita, Iku Endo
  • Publication number: 20240238848
    Abstract: A substrate processing apparatus includes a support unit, a supply unit, an annular member, a rotation unit, a cover member, and an annular flow regulation member disposed above the cover member. The annular member includes an inclined surface inclined downward toward a center of the annular member in a radial direction. The flow regulation member includes a base portion and a protrusion which faces a circumferential portion of the substrate supported on the support unit and protrudes from the base portion toward the circumferential portion of the substrate. The protrusion overlaps the support unit when viewed in a vertical direction. A lower surface of the protrusion is positioned above an upper surface of the substrate supported on the support unit and positioned below an upper surface of the annular member. An inner circumferential surface of the protrusion is inclined radially outward from an upper side to a lower side.
    Type: Application
    Filed: January 11, 2024
    Publication date: July 18, 2024
    Inventors: Takafumi KINOSHITA, Yuki ITO, Daisuke SAIKI, Tomoyuki HASHIMOTO, Yoshifumi AMANO, Kazuhiro AIURA, Akira FUJITA, Shuhei TAKAHASHI
  • Patent number: 11955777
    Abstract: An optical combiner includes: a plurality of first input optical fibers that each include a core; a bridge fiber that includes a bridge input surface connected to the cores of the plurality of first input optical fibers, a diameter reduction portion having a diameter that decreases away from the bridge input surface along an optical axis of the optical combiner, and a bridge output surface located opposite to the bridge input surface along the optical axis; an intermediate optical fiber that includes a core connected to the bridge output surface of the bridge fiber; a second input optical fiber that includes a core; and an output optical fiber that includes a first optical waveguide connected to the core of the intermediate optical fiber, and a second optical waveguide connected to the core of the second input optical fiber.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: April 9, 2024
    Assignee: Fujikura Ltd.
    Inventors: Tomoyuki Fujita, Ryokichi Matsumoto, Yutaka Yamaguchi, Takuya Kobayashi, Kiwamu Suzuki
  • Publication number: 20240084020
    Abstract: In one embodiment, the present disclosure provides pharmaceutical compositions for suppressing the progression of fibrosis in systemic sclerosis, which contain an antibody against IL-31 receptor A as an active ingredient. In another embodiment, the present disclosure provides pharmaceutical compositions for suppressing Th2 polarization to suppress the progression of fibrosis in systemic sclerosis, which comprise an antibody against IL-31 receptor A as an active ingredient. In a certain embodiment, the above-mentioned antibody is an antibody having a neutralizing activity against IL-31 receptor A.
    Type: Application
    Filed: November 29, 2021
    Publication date: March 14, 2024
    Applicants: Maruho Co., Ltd., The University of Tokyo
    Inventors: Ayumi Yoshizaki, Ai Kuzumi, Shinichi Sato, Tomoyuki Fujita, Hideki Watanabe
  • Publication number: 20240076254
    Abstract: The present invention relates to a method for decomposing polyfluorocarboxylic acids, characterized in that a mixture containing polyfluorocarboxylic acids, water, and a basic compound is heated.
    Type: Application
    Filed: October 25, 2023
    Publication date: March 7, 2024
    Applicant: AGC Inc.
    Inventor: Tomoyuki FUJITA
  • Publication number: 20230208109
    Abstract: An optical combiner includes: first optical input portions each including a first optical input waveguide; and an optical output portion to which the first optical input portions are connected and that includes a first core that allows light to propagate therethrough, and a cladding layer disposed outside of the first core and that has a refractive index lower than a refractive index of the first core. The first optical input portions are connected to a connection end face of the optical output portion such that the first optical input waveguide of at least one of the first optical input portions is optically coupled to the first core of the optical output portion.
    Type: Application
    Filed: February 19, 2021
    Publication date: June 29, 2023
    Applicant: FUJIKURA LTD.
    Inventors: Ryokichi Matsumoto, Tomoyuki Fujita, Kiwamu Suzuki
  • Patent number: 11536268
    Abstract: An electric pump provided with a pump unit configured to discharge working oil by being rotationally driven by an electric motor includes: a drive shaft configured to transmit rotational driving force from the electric motor to a rotor of the pump unit; a rotation-detection shaft provided coaxially with the drive shaft, the rotation-detection shaft being configured to be rotated together with the rotor; and a rotation detector unit configured to detect rotation of the rotation-detection shaft. The rotation-detection shaft has: an engagement portion configured to engage with the rotor; and a detection-target portion facing the rotation detector unit, and an outer diameter of the detection-target portion is set so as to be larger than an outer diameter of the engagement portion.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: December 27, 2022
    Assignees: KYB CORPORATION, NIDEC TOSOK CORPORATION
    Inventors: Kohei Kubo, Tomoyuki Fujita, Koichiro Akatsuka, Yoshiyuki Maki, Koji Higuchi, Yutaka Hashimoto
  • Publication number: 20220276433
    Abstract: An optical combiner includes: a plurality of first input optical fibers that each include a core; a bridge fiber that includes a bridge input surface connected to the cores of the plurality of first input optical fibers, a diameter reduction portion having a diameter that decreases away from the bridge input surface along an optical axis of the optical combiner, and a bridge output surface located opposite to the bridge input surface along the optical axis; an intermediate optical fiber that includes a core connected to the bridge output surface of the bridge fiber; a second input optical fiber that includes a core; and an output optical fiber that includes a first optical waveguide connected to the core of the intermediate optical fiber, and a second optical waveguide connected to the core of the second input optical fiber.
    Type: Application
    Filed: September 24, 2020
    Publication date: September 1, 2022
    Applicant: FUJIKURA LTD.
    Inventors: Tomoyuki Fujita, Ryokichi Matsumoto, Yutaka Yamaguchi, Takuya Kobayashi, Kiwamu Suzuki
  • Publication number: 20220255287
    Abstract: A fiber laser includes: a gain fiber; a first low-reflective mirror and a second high-reflective mirror disposed in an optical path of laser light that is emitted from a first end of the gain fiber; a second low-reflective mirror and a first high-reflective mirror disposed in an optical path of laser light that is emitted from a second end of the gain fiber; a first delivery fiber that accepts the laser light emitted from the first end; a second delivery fiber that accepts the laser light emitted from the second end; and an operation mode switching mechanism that switches between a first operation mode and a second operation mode. A first resonator is constituted by the first low-reflective mirror and the first high-reflective mirror. A second resonator, which is constituted by the second low-reflective mirror and the second high-reflective mirror.
    Type: Application
    Filed: June 29, 2020
    Publication date: August 11, 2022
    Applicant: FUJIKURA LTD.
    Inventors: Ryokichi Matsumoto, Tomoyuki Fujita
  • Publication number: 20220178369
    Abstract: A vane pump is provided with: a pump housing having an accommodating concave portion; and a pump cartridge accommodated in the accommodating concave portion, wherein the pump cartridge has: a rotor; a plurality of vanes received in a plurality of slits formed in the rotor; a cam ring formed with a cam face on an inner circumference of the cam ring; and a first side plate provided at the opposite side from a bottom surface of the accommodating concave portion such that the cam ring is located therebetween, the first side plate has a first projected portion projected radially outward, and the pump cartridge is anchored to the pump housing via the first projected portion.
    Type: Application
    Filed: March 3, 2020
    Publication date: June 9, 2022
    Applicant: KYB Corporation
    Inventors: Kouhei KUBO, Tomoyuki FUJITA, Koichiro AKATSUKA, Yoshiyuki MAKI
  • Publication number: 20220041549
    Abstract: To provide a method for producing a perfluoroacyl peroxide which can suppress formation of solid matters in a reaction apparatus, and a method for producing a fluoroalkyl iodide. The method for producing a perfluoroacyl peroxide of the present invention is a method for producing a perfluoroacyl peroxide, which comprises: mixing an organic solvent solution containing a perfluoroacyl halide and an organic solvent which is at least one perfluoroalkyl iodide selected from the group consisting of C2F5I, C4F9I and C6F13I, a first aqueous solution containing hydrogen peroxide, and a second aqueous solution containing a basic alkali metal compound, to obtain a mixed liquid, and reacting the perfluoroacyl halide and the hydrogen peroxide in the mixed liquid to produce a perfluoroacyl peroxide, wherein the pH of the aqueous phase of the mixed liquid is adjusted to be from 7 to 14.
    Type: Application
    Filed: October 26, 2021
    Publication date: February 10, 2022
    Applicant: AGC Inc.
    Inventors: Tomoyuki FUJITA, Shintaro FUKUNAGA
  • Publication number: 20210348620
    Abstract: An electric pump provided with a pump unit configured to discharge working oil by being rotationally driven by an electric motor includes: a drive shaft configured to transmit rotational driving force from the electric motor to a rotor of the pump unit; a rotation-detection shaft provided coaxially with the drive shaft, the rotation-detection shaft being configured to be rotated together with the rotor; and a rotation detector unit configured to detect rotation of the rotation-detection shaft. The rotation-detection shaft has: an engagement portion configured to engage with the rotor; and a detection-target portion facing the rotation detector unit, and an outer diameter of the detection-target portion is set so as to be larger than an outer diameter of the engagement portion.
    Type: Application
    Filed: October 29, 2019
    Publication date: November 11, 2021
    Applicants: KYB Corporation, NIDEC TOSOK CORPORATION
    Inventors: Kohei KUBO, Tomoyuki FUJITA, Koichiro AKATSUKA, Yoshiyuki MAKI, Koji HIGUCHI, Yutaka HASHIMOTO
  • Patent number: 11061189
    Abstract: There is provided an optical fiber protection structure capable of mitigating deterioration of optical characteristics of an optical fiber under a high-temperature environment and a method of manufacturing an optical element using the same. An optical combiner structure protects bare fiber exposure portions in which bare fibers are exposed from the coverings of optical fibers. The optical combiner structure has a fiber accommodation portion having a fiber accommodation groove that accommodates the bare fiber exposure portions therein, fixation resins filled within the fiber accommodation groove for fixing a portion of the coverings within the fiber accommodation groove, and seal resins for sealing spaces between the bare fibers and the coverings on ends of the bare fiber exposure portions. The seal resins are formed so as to be spaced from an inner surface of the fiber accommodation groove.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: July 13, 2021
    Assignee: FUJIKURA LTD.
    Inventors: Hiroto Nakazato, Tomoyuki Fujita, Kazuya Ishida
  • Patent number: 10942311
    Abstract: Provided is an optical device which can control a beam quality of outgoing light. An optical device (10) includes an entrance fiber bundle (12), an exit fiber (13), and a reduced diameter part (11). The reduced diameter part (11) has (i) an entrance end surface (11a) and (ii) an exit end surface (11b) which is narrower in area than the entrance end surface (11a). In a case where the entrance end surface (11a) is viewed from a normal direction of the entrance end surface (11a), a center (C2) of the exit end surface (11b) deviates from a center (C1) of the entrance end surface (11a).
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: March 9, 2021
    Assignee: FUJIKURA LTD.
    Inventor: Tomoyuki Fujita
  • Publication number: 20200292761
    Abstract: There is provided an optical fiber protection structure capable of mitigating deterioration of optical characteristics of an optical fiber under a high-temperature environment and a method of manufacturing an optical element using the same. An optical combiner structure protects bare fiber exposure portions in which bare fibers are exposed from the coverings of optical fibers. The optical combiner structure has a fiber accommodation portion having a fiber accommodation groove that accommodates the bare fiber exposure portions therein, fixation resins filled within the fiber accommodation groove for fixing a portion of the coverings within the fiber accommodation groove, and seal resins for sealing spaces between the bare fibers and the coverings on ends of the bare fiber exposure portions. The seal resins are formed so as to be spaced from an inner surface of the fiber accommodation groove.
    Type: Application
    Filed: February 21, 2017
    Publication date: September 17, 2020
    Applicant: FUJIKURA LTD.
    Inventors: Hiroto Nakazato, Tomoyuki Fujita, Kazuya Ishida
  • Publication number: 20200209478
    Abstract: Provided is an optical device which can control a beam quality of outgoing light. An optical device (10) includes an entrance fiber bundle (12), an exit fiber (13), and a reduced diameter part (11). The reduced diameter part (11) has (i) an entrance end surface (11a) and (ii) an exit end surface (11b) which is narrower in area than the entrance end surface (11a). In a case where the entrance end surface (11a) is viewed from a normal direction of the entrance end surface (11a), a center (C2) of the exit end surface (11b) deviates from a center (C1) of the entrance end surface (11a).
    Type: Application
    Filed: March 9, 2020
    Publication date: July 2, 2020
    Applicant: Fujikura Ltd.
    Inventor: Tomoyuki Fujita
  • Patent number: 10690872
    Abstract: An optical fiber protection structure has a fiber accommodation portion having a fiber accommodation groove formed therein for accommodating at least a portion of optical fibers and first resins filled in the fiber accommodation groove. The first resins are to fix a portion of the optical fibers within the fiber accommodation groove. The optical fiber protection structure has a cover member disposed above the fiber accommodation portion so as to cover the fiber accommodation groove, second resins for allowing the first resins to expand toward the cover member to reduce a stress applied to the optical fibers, and a third resin for fixing the cover member onto the fiber accommodation portion. The second resins have a Young's modulus lower than those of the first resins.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: June 23, 2020
    Assignee: FUJIKURA LTD.
    Inventors: Tomoyuki Fujita, Hiroto Nakazato, Takanori Yamauchi
  • Patent number: 10675194
    Abstract: An absorbent article has a planar direction and a thickness direction. The absorbent article includes a volatile first functional component, a volatile second functional component, water-disintegrable microcapsules that contain the second functional component, and a solvent that keeps the second functional component contained inside the microcapsules. Between a liquid-permeable layer and an absorption layer, the absorbent article has functional composition coated regions that extend in the planar direction and that are coated with the functional composition, and has adhesive coated regions that extend in the planar direction and that are coated with an adhesive. The adhesive coated regions have an adhesive region that directly or indirectly joins the liquid-permeable payer and the absorption layer.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: June 9, 2020
    Assignee: UNICHARM CORPORATION
    Inventors: Jun Kudo, Toshiyuki Tanio, Yuji Takahashi, Asami Shima, Tomoyuki Fujita
  • Patent number: 10627573
    Abstract: Provided is an optical device which can control a beam quality of outgoing light. An optical device (10) includes an entrance fiber bundle (12), an exit fiber (13), and a reduced diameter part (11). The reduced diameter part (11) has (i) an entrance end surface (11a) and (ii) an exit end surface (11b) which is narrower in area than the entrance end surface (11a). In a case where the entrance end surface (11a) is viewed from a normal direction of the entrance end surface (11a), a center (C2) of the exit end surface (11b) deviates from a center (C1) of the entrance end surface (11a).
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: April 21, 2020
    Assignee: FUJIKURA LTD.
    Inventor: Tomoyuki Fujita
  • Publication number: 20190146157
    Abstract: Provided is an optical device which can control a beam quality of outgoing light. An optical device (10) includes an entrance fiber bundle (12), an exit fiber (13), and a reduced diameter part (11). The reduced diameter part (11) has (i) an entrance end surface (11a) and (ii) an exit end surface (11b) which is narrower in area than the entrance end surface (11a). In a case where the entrance end surface (11a) is viewed from a normal direction of the entrance end surface (11a), a center (C2) of the exit end surface (11b) deviates from a center (C1) of the entrance end surface (11a).
    Type: Application
    Filed: March 6, 2017
    Publication date: May 16, 2019
    Applicant: FUJIKURA LTD.
    Inventor: Tomoyuki Fujita