Patents by Inventor Atsushi Nakamura

Atsushi Nakamura 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: 11828676
    Abstract: The purpose of this invention is to provide an optical pulse testing method and optical pulse testing device capable of measuring the loss at an end farther than an axially misaligned connection point at which inter-mode crosstalk occurs independently from the crosstalk value at the point. In this optical pulse testing method, a matrix (loss and crosstalk) representing the mode coupling at a near-end connection point is calculated, and an OTDR waveform having the effects of crosstalk eliminated therefrom is obtained by numerical processing using the calculated matrix representing the mode coupling.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: November 28, 2023
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Atsushi Nakamura, Keiji Okamoto, Hiroyuki Oshida
  • Publication number: 20230376415
    Abstract: A semiconductor device capable of reducing power consumption is provided. A group controller detects a zero weight parameter having a zero value among “n×m” weight parameters to be transferred to a weight parameter buffer. Then, when receiving the zero weight parameter as its input, the group controller exchanges the “n×m” weight parameters to be transferred to the weight parameter buffer so that all multiplication results of the “n” multipliers included in a target multiplier group that is one of the “m” multiplier groups are zero. The group controller controls the target multiplier group to be disabled, and exchanges the “n×m” pixel data to be transferred to the data input buffer, based on the exchange of the “n×m” weight parameters.
    Type: Application
    Filed: March 20, 2023
    Publication date: November 23, 2023
    Inventors: Kazuaki TERASHIMA, Atsushi NAKAMURA, Yonghua WANG
  • Publication number: 20230365860
    Abstract: A phosphor has a crystal structure of a garnet type and is expressed by a general formula BaaY3-a-bAl5-aSiaO12:Ceb (wherein a and b are values within a range that satisfies 12.0113?A+0.036b?0.003a?12.0153, when A denotes a lattice size of the crystal structure, a [mol] denotes an amount of Ba incorporated in solid solution, and b [mol] denotes an amount of Ce incorporated in solid solution).
    Type: Application
    Filed: July 27, 2023
    Publication date: November 16, 2023
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Atsushi NAKAMURA, Hisayoshi DAICHO, Takeshi IWASAKI
  • Patent number: 11808855
    Abstract: An optical device includes a light source provided with a plurality of surface-emitting laser elements to emit a laser beam, a scanner to scan the laser beam emitted from the light source, and an optical system disposed in an optical path between the light source and the scanner and to guide the laser beam to the scanner. The optical system includes a first optical element to control a divergence angle of the laser beam emitted from the light source and a second optical element to concentrate the laser beam that has passed through the first optical element onto a to-be-scanned surface of the scanner.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: November 7, 2023
    Assignee: RICOH COMPANY, LTD.
    Inventors: Toshiyuki Ikeoh, Yasufumi Yamada, Atsushi Sakai, Naoto Jikutani, Tsuyoshi Ueno, Nobunari Tsukamoto, Tadashi Nakamura, Kazuma Izumiya, Shuichi Suzuki
  • Publication number: 20230350305
    Abstract: There is provided a manufacturing method for a cured substance, which makes it possible to obtain a cured substance having excellent breaking elongation, a manufacturing method for a laminate, including the manufacturing method for a cured substance, a manufacturing method for a semiconductor device, including the manufacturing method for a cured substance or the manufacturing method for a laminate, and there is provided a treatment liquid that is used in the manufacturing method for a cured substance. The manufacturing method for a cured substance includes a film forming step of applying a resin composition containing a precursor of a cyclization resin onto a base material to form a film, a treatment step of bringing a treatment liquid into contact with the film, and a heating step of heating the film after the treatment step, in which the treatment liquid contains at least one compound selected from the group consisting of a basic compound having an amide group and a base generator having an amide group.
    Type: Application
    Filed: June 20, 2023
    Publication date: November 2, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Atsuyasu NOZAKI, Misaki TAKASHIMA, Naoki SATO, Atsushi NAKAMURA
  • Patent number: 11802809
    Abstract: The present invention is to provide a backscattered light amplification device, an optical pulse test apparatus, a backscattered light amplification method, and an optical pulse test method for amplifying a desired propagation mode of Rayleigh backscattered light with a desired gain by stimulated Brillouin scattering in a fiber under test having the plurality of propagation modes. The backscattered light amplification device according to the present invention is configured to control individually power, incident timing, and pulse width of a pump pulse for each propagation mode when the pump pulse is incident in a plurality of propagation modes after the probe pulse is input to the fiber under test in any propagation mode.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: October 31, 2023
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Keiji Okamoto, Atsushi Nakamura, Hiroyuki Oshida
  • Patent number: 11802744
    Abstract: An exhaust heat recovery boiler includes: a duct casing in which exhaust gas flows; a tubular extending portion extending upward from the duct casing; a heat exchanger tube located in the duct casing; a hammering rod connected to the heat exchanger tube in the duct casing and passing through an inside of the extending portion, the hammering rod including an upper part projecting to an outside of the extending portion; and an annular sleeve attached to the upper part of the hammering rod through a packing. The extending portion includes an upper flat surface which is located at an upper end of the extending portion, realizes a seal between the upper flat surface and a lower surface of the sleeve, and is annular and flat.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: October 31, 2023
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Ryo Nakamura, Yukihiro Takenaka, Takuro Nozoe, Tatsuo Ino, Atsushi Yukioka, Shuji Yamamoto, Toshinori Tanaka, Hao Zhang, Wei Fang
  • Publication number: 20230340277
    Abstract: The present invention provides an antiviral hard-coat film that is effective as a material for decorative sheets having an antiviral property and can exhibit a high reproducible antiviral property, and an antiviral adhesive-treated sheet and an antiviral decorative plate each using the antiviral hard-coat film. The present invention provides an antiviral hard-coat film comprising a crosslinked curable resin layer in an outermost layer, wherein (1) the crosslinked curable resin layer contains a cured product of a crosslinked curable resin and silver-containing inorganic particles; and (2) the hard-coat film has a silver ion concentration measured by ICP-OES measurement of 0.018 ?g/cm2 or more.
    Type: Application
    Filed: September 28, 2021
    Publication date: October 26, 2023
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Tomomi Nakajima, Yosuke Sumida, Yoshiaki Netsu, Masataka Wada, Risa Yoshinami, Koji Moriyama, Katsuji Nakamura, Atsushi Kuwako, Akiko Kato
  • Publication number: 20230332980
    Abstract: An object of the present invention is to provide an optical fiber measurement system, an optical fiber measurement method, a control calculation device, and a program that are capable of measuring loss and XT occurring at a plurality of points of an optical fiber in which a plurality of modes propagate, for each point.
    Type: Application
    Filed: October 7, 2020
    Publication date: October 19, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tomokazu ODA, Atsushi NAKAMURA, Daisuke IIDA, Yusuke KOSHIKIYA, Nazuki HONDA
  • Patent number: 11788909
    Abstract: An object of the present disclosure is to provide a method and an apparatus for acquiring curvature and torsion using an inexpensive sensor medium. Disclosed is a measurement apparatus including a fiber ribbon including a plurality of coated fibers arranged in parallel, a strain measurement unit that measures strain amounts of the plurality of coated fibers, and an arithmetic processing unit that calculates curvature and torsion of the fiber ribbon using a strain amount of a coated fiber arranged in a middle portion of the plurality of coated fibers and a strain amount of a coated fiber arranged in a marginal portion of the plurality of coated fibers.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: October 17, 2023
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Atsushi Nakamura, Daisuke Iida, Hiroyuki Oshida, Tatsuya Okamoto, Tomokazu Oda, Yoshifumi Wakisaka
  • Patent number: 11772457
    Abstract: A cowl grille comprises a member portion which extends in a vehicle width direction below a front windshield so as to receive water dripping from the front windshield, a cover portion which is positioned in front of a member portion and covers over an auxiliary equipment, a partition portion which extends downwardly from the cover portion and partitions a space where an engine is arranged from another space where the auxiliary equipment is arranged, and a cowl seal which extends in the vehicle width direction and contacts a bonnet so as to seal between a vehicle outside space and an engine room. The cowl seal is positioned at a front part of the member portion, and the cover portion is made of a plate member and provided to perform heat insulating between a space positioned above the cover portion and another space positioned below the cover portion.
    Type: Grant
    Filed: November 23, 2021
    Date of Patent: October 3, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Hosei Mogi, Atsushi Nakamura, Hidekazu Morikawa
  • Patent number: 11769933
    Abstract: The present disclosure aims to suppress, in a winding type electrode body in which a negative electrode lead is bonded to a winding start side end of a negative electrode collector, electrode plate deformation in association with charge/discharge cycles. A nonaqueous electrolyte secondary battery according to one aspect of the present disclosure includes a winding type electrode body (14). A negative electrode (12) includes a negative electrode lead (20a) bonded to a winding start side end of a negative electrode collector and is wound at least one turn from a winding-direction inner end so as not to face a positive electrode (11) with a separator (13) interposed therebetween. The negative electrode (12) includes an insulating tape (40) adhered to the negative electrode collector so as to straddle a surface of the negative electrode lead (20a) in a winding direction.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: September 26, 2023
    Assignee: PANASONIC ENERGY CO., LTD.
    Inventors: Atsushi Mizawa, Junichi Sugaya, Tomomichi Ueda, Masahiro Nakamura, Kei Kobayashi
  • Publication number: 20230298813
    Abstract: A method for producing an insulator-coated soft magnetic powder includes: a mixing step of mixing a soft magnetic powder and a ceramic powder to obtain a mixture; a first compression bonding step of pulverizing the ceramic powder by applying mechanical energy to the mixture; and a second compression bonding step of fusing, by applying to the mixture mechanical energy larger than the mechanical energy in the first compression bonding step, the pulverized ceramic powder to surfaces of particles of the soft magnetic powder and obtaining an insulator-coated soft magnetic powder, after the first compression bonding step.
    Type: Application
    Filed: March 15, 2023
    Publication date: September 21, 2023
    Inventor: Atsushi NAKAMURA
  • Publication number: 20230297528
    Abstract: A semiconductor device capable of preventing a sharp variation in current consumption in neural network processing is provided. A dummy circuit outputs dummy data to at least one or more of n number of MAC circuits and causes the at least one or more of n number of MAC circuits to perform a dummy calculation and to output dummy output data. An output-side DMA controller transfers pieces of normal output data from the n number of MAC circuits to a memory, by use of n number of channels, respectively, and does not transfer the dummy output data to the memory. In this semiconductor device, the at least one or more of n number of MAC circuits perform the dummy calculation in a period from a timing at which the output-side DMA controller ends data transfer to the memory to a timing at which the input-side DMA controller starts data transfer from the memory.
    Type: Application
    Filed: January 10, 2023
    Publication date: September 21, 2023
    Inventors: Kazuaki TERASHIMA, Atsushi NAKAMURA, Rajesh GHIMIRE
  • Patent number: 11763417
    Abstract: The semiconductor device includes an image signal processor, a scaler, and an ROI (Region of Interest) controller. The image signal processor executes image processing including demosaic processing and stores the image after the image processing in memory. The scaler reduces the capture image from the image sensor to generate a reduced entire image and causes the image signal processor to execute image processing on the reduced entire image. The ROI controller cuts out a partial region of the captured image from the image sensor to generate an ROI image and causes the image signal processor to execute image processing on the ROI image.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: September 19, 2023
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Kazuaki Terashima, Isao Nagayoshi, Atsushi Nakamura
  • Publication number: 20230288466
    Abstract: distribution of the any higher-order mode.
    Type: Application
    Filed: August 7, 2020
    Publication date: September 14, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tomokazu ODA, Atsushi NAKAMURA, Daisuke IIDA, Hiroyuki OSHIDA
  • Publication number: 20230290555
    Abstract: A soft magnetic powder contains a particle having a composition represented by FexCuaNbb(S1-yBy)100-x-a-b, a, b, and x being numbers whose units are atomic %, in which 0.3?a?2.0, 2.0?b?4.0, and 73.0?x?79.5, and y being a number satisfying f(x)?y?0.99, and f(x)=(4×10?34)x17.56. When an XPS spectrum of the particle is obtained, and fitting processing is performed on an O1s peak, the O1s peak is separated into a first element peak of 532 eV or less and a second element peak of more than 532 eV, and S2/S1 is 1.5 or more where S1 is an area of the first element peak and S2 is an area of the second element peak.
    Type: Application
    Filed: March 13, 2023
    Publication date: September 14, 2023
    Inventors: Yasuko KUDO, Atsushi NAKAMURA
  • Publication number: 20230288289
    Abstract: An object of the present disclosure is to provide a few-mode fiber testing method and a few-mode fiber testing device capable of acquiring a loss and inter-mode crosstalk for each mode at a connection point of a few-mode fiber by measurement only from one end of FUT.
    Type: Application
    Filed: August 21, 2020
    Publication date: September 14, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Atsushi NAKAMURA, Tomokazu ODA, Daisuke IIDA, Hiroyuki OSHIDA
  • Publication number: 20230288287
    Abstract: An object of the present disclosure is to provide a power coupling coefficient measurement method and a power coupling coefficient measurement device capable of inexpensively and easily measuring a power coupling coefficient. The power coupling coefficient measurement method according to the present disclosure is a power coupling coefficient measurement method for measuring a power coupling coefficient of a multi-core fiber in order to achieve the aforementioned object, and includes: inputting a test light pulse from one end of the multi-core fiber to any one of cores; receiving backscattered light of the core to which the test light pulse is input or any one of the other cores; measuring an intensity distribution of the backscattered light with respect to a distance from the one end of the multi-core fiber; and calculating the power coupling coefficient from the intensity distribution of the backscattered light.
    Type: Application
    Filed: August 21, 2020
    Publication date: September 14, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Atsushi NAKAMURA, Daisuke IIDA, Tomokazu ODA, Hiroyuki OSHIDA
  • Patent number: 11754465
    Abstract: An object of the present invention is to provide an optical pulse test apparatus and an optical pulse test method that are capable of determining a change in state of an optical fiber connection portion without the need for reference and without being affected by changes in gap interval before and after the change in state. The optical pulse test apparatus according to the present invention is configured to perform an OTDR measurement by using test optical pulses having spectral widths of from several nm to several hundred nm arranged at intervals of several ten nm to several hundred nm, calculate a reflection peak value caused by the Fresnel reflection at the connection portion from the obtained OTDR waveform, and determine a state such as water immersion of the optical fiber connection portion based on the value.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: September 12, 2023
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Atsushi Nakamura, Nazuki Honda, Daisuke Iida, Hiroyuki Oshida, Keiji Okamoto