Patents by Inventor Yoshiaki Yamamoto

Yoshiaki Yamamoto 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: 20210367670
    Abstract: An optical transmission system including an optical transmitter and an optical receiver, wherein the optical transmitter includes a signal coding unit that performs non-linear block coding on an M (M is an integer greater than or equal to 1)-value symbol sequence or a bit sequence input as data information to generate an L (L is an integer greater than or equal to 2, L>M)-value symbol sequence that corresponds to the M-value symbol sequence or the bit sequence in one-to-one correspondence, a digital-to-analog conversion unit that converts the generated L-value symbol sequence to an analog signal, and a modulator that generates an optical modulation signal by performing modulation based on the analog signal, and the optical receiver includes a light receiving unit that receives the optical modulation signal transmitted from the optical transmitter and converts the optical modulation signal to an electrical signal, and a signal decoding unit that restores the M-value symbol sequence or the bit sequence by pe
    Type: Application
    Filed: November 7, 2019
    Publication date: November 25, 2021
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Shuto YAMAMOTO, Seiji OKAMOTO, Akira MASUDA, Hiroki TANIGUCHI, Yoshiaki KISAKA
  • Publication number: 20210367671
    Abstract: Provided is an optical transmission system that includes an optical transmitter, and an optical receiver. The optical transmitter includes: a signal coding unit configured to perform nonlinear trellis coding, which corresponds to nonlinear calculation, on a symbol sequence; and a modulator configured to modulate the symbol sequence subjected to the nonlinear trellis coding by the signal coding unit, and transmit the modulated symbol sequence to the optical receiver. The optical receiver includes: a light receiving unit configured to receive an optical signal transmitted from the optical transmitter, and convert the received optical signal into an electrical signal; and a digital signal processing unit configured to perform digital signal processing on the electrical signal to reconstruct the symbol sequence.
    Type: Application
    Filed: November 6, 2019
    Publication date: November 25, 2021
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Shuto YAMAMOTO, Akira MASUDA, Hiroki TANIGUCHI, Yoshiaki KISAKA
  • Publication number: 20210363640
    Abstract: A vacuum processing apparatus is a vacuum processing apparatus which performs plasma processing and includes an electrode flange, a shower plate, a processing chamber, and a support shaft. The shower plate is provided with a plurality of gas flow paths that are formed therein, and a shaft gas flow path extending in an axial direction of the support shaft is provided at a portion in which the support shaft is connected to the shower plate so that the conductance does not change in an in-plane direction of the shower plate.
    Type: Application
    Filed: June 14, 2019
    Publication date: November 25, 2021
    Inventors: Yoshiaki YAMAMOTO, Yosuke JIMBO, Takehisa MIYAYA, Kenji ETO, Yoichi ABE
  • Patent number: 11183948
    Abstract: A series multiplex inverter includes a power conversion unit, a drive signal generation unit, and a drive signal output unit. The drive signal generation unit generates n drive signals that cause different single-phase inverters of n single-phase inverters to output n rectangular wave voltages sequentially out of phase, where n is an integer of three or more. The drive signal output unit outputs the n drive signals to the n single-phase inverters in rotation that shifts, by p every m-fold time of half an output voltage period of the power conversion unit, the single-phase inverters corresponding one-to-one to the n drive signals in a combination of the n drive signals with different single-phase inverters of the n single-phase inverters, where m is a natural number and p is a natural number relatively prime to n or one.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: November 23, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kazufumi Tanaka, Kazutoshi Kurahashi, Yoshiaki Yamamoto, Shuta Ishikawa
  • Publication number: 20210343577
    Abstract: A lift pin of the invention is to be in contact with a substrate having a process-target surface and a non-processed surface, and the lift pin includes: a center member that has a first surface having first surface roughness and including an electrical insulator, and a main body serving as an electroconductive member, and that faces the non-processed surface of the substrate; and a surrounding member that has a second surface having second surface roughness lower than the first surface roughness and including an electrical insulator, that surrounds the periphery of the center member, and that faces the non-processed surface of the substrate.
    Type: Application
    Filed: August 6, 2018
    Publication date: November 4, 2021
    Inventors: Yoshiaki YAMAMOTO, Yosuke JIMBO, Takehisa MIYAYA, Kenji ETO, Yoichi ABE
  • Patent number: 11162092
    Abstract: Described herein is a method that generally includes infecting a host cell with a rescue adenovirus, wherein the rescue adenovirus genome comprises a loxP site and encodes at least one marker, and wherein the host cell comprises a library of polynucleotides that complement the adenovirus genome marker and encode a detectable polypeptide; incubating the infected host cell under conditions effective to permit recombination between the adenovirus genome and one or more of the library polynucleotides and the production of recombinant adenovirus particles comprising at least on detectable polypeptide; and detecting the at least one detectable polypeptide. Also described are adenovirus libraries constructed using such a method.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: November 2, 2021
    Assignee: Regents of the University of Minnesota
    Inventors: Masato Yamamoto, Yoshiaki Miura
  • Publication number: 20210301930
    Abstract: A valve device includes: a ball valve having a ball face shaped in a convex spherical surface; and a valve seat having a seat face shaped in a concave spherical surface. The seat face is pressed onto the ball face. The ball valve is rotated to open a valve by communicating a valve opening defined in the ball valve and a seat opening defined in the valve seat with each other, and to close the valve by stop the communication. A diameter of the seat opening ?2 is smaller than a diameter of the valve opening ?1. A curvature radius of the ball face R1 is smaller than or equal to a curvature radius of the seat face is R2.
    Type: Application
    Filed: June 11, 2021
    Publication date: September 30, 2021
    Inventors: Naohito SEKO, Yoshiaki YAMAMOTO, Shinichi YOKOYAMA, Yuuji NAKANO, Ryo SANO
  • Publication number: 20210284556
    Abstract: A water treatment method that uses a reaction tank and involves repeatedly performing an operation cycle including: an inflow step for causing an inflow of waste water; a biological treatment step for subjecting the waste water to biological treatment using biological sludge; a sedimentation step for causing the biological sludge to settle; and a drainage step for draining biologically-treated water that has undergone the aforementioned biological treatment. The reaction tank is provided with an inflow port that is disposed at a position lower than an interface position of a biological sludge bed formed at the bottom of the reaction tank in the sedimentation step, and an inflow pipe that extends upward in the vertical direction from the inflow port. In the inflow step, the waste water is caused to gravitationally flow down in the inflow pipe so as to be fed into the biological sludge bed from the inflow port.
    Type: Application
    Filed: July 24, 2019
    Publication date: September 16, 2021
    Applicant: ORGANO CORPORATION
    Inventors: Masaki MIYAKE, Yoshiaki HASEBE, Shohei YAMAMOTO, Hizuru WAKAYAMA
  • Publication number: 20210261450
    Abstract: Provided are: a water treatment method that includes at least a denitrification step for denitrifying water to be treated with a denitrifying bacterium in the presence of a hydrogen donor, wherein the denitrification activity of the denitrifying bacterium can be maintained at a high level and thus the treatment speed can be increased; and a water treatment apparatus. The water treatment method includes at least a denitrification step for passing water to be treated through a biological treatment tank and denitrifying the same with a heterotrophic denitrifying bacterium in the presence of a hydrogen donor, wherein: molybdenum is added to the water to be treated to give a concentration of 0.01-1.0 mgMo/gN; a carrier is added to the biological treatment tank; and the nitrogen load to the carrier is controlled to 1.6 kgN/(m3-carrierĀ·d) or greater.
    Type: Application
    Filed: June 20, 2019
    Publication date: August 26, 2021
    Applicant: ORGANO CORPORATION
    Inventors: Hironori YUI, Taichi YAMAMOTO, Masaki MIYAKE, Yoshiaki HASEBE
  • Patent number: 11078363
    Abstract: Provided an optical material composition which makes it possible to design an optical material exhibiting a broad range of properties. This optical material composition contains a compound (A) represented by formula (1) and a polythiol (a), and does not contain 1,2,3,5,6-pentathiepane (b).
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: August 3, 2021
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Yoshihiko Nishimori, Yosuke Imagawa, Kouhei Takemura, Hiroshi Horikoshi, Yoshiaki Yamamoto
  • Patent number: 11067180
    Abstract: A valve device includes: a ball valve having a ball face shaped in a convex spherical surface; and a valve seat having a seat face shaped in a concave spherical surface. The seat face is pressed onto the ball face. The ball valve is rotated to open a valve by communicating a valve opening defined in the ball valve and a seat opening defined in the valve seat with each other, and to close the valve by stop the communication. A diameter of the seat opening ?2 is smaller than a diameter of the valve opening ?1. A curvature radius of the ball face R1 is smaller than or equal to a curvature radius of the seat face is R2.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: July 20, 2021
    Assignee: DENSO CORPORATION
    Inventors: Naohito Seko, Yoshiaki Yamamoto, Shinichi Yokoyama, Yuuji Nakano, Ryo Sano
  • Publication number: 20210187463
    Abstract: The present invention relates to an autoclave molding apparatus for use in molding a composite material composed of a fibrous base material and a matrix and sealed together with a molding tool in a vacuum bag, using steam for heating and compressing the composite material. The present invention provides an autoclave molding apparatus capable of effectively reducing the overshoot of the temperature of the composite material caused by poor dissipation of curing heat in a curing process and thereby capable of producing a composite material molded article having uniform and sufficient strength. More specifically, an autoclave molding apparatus of the present invention is characterized in that a condensed water holder(s) configured to hold condensed water generated by heating is mounted on at least a portion of the vacuum bag and/or at least a portion of the molding tool.
    Type: Application
    Filed: January 30, 2019
    Publication date: June 24, 2021
    Inventors: Yoshiaki YAMAMOTO, Takeshi ASHIDA
  • Publication number: 20210158893
    Abstract: It is intended to conveniently determine the pharmacokinetics of axitinib and to predict the therapeutic effect of axitinib. The present invention provides a method for determining the pharmacokinetics of axitinib, comprising the step of calculating a predicted pharmacokinetic parameter of axitinib using specific gene polymorphisms and background factors regarding a test subject.
    Type: Application
    Filed: May 18, 2018
    Publication date: May 27, 2021
    Applicants: Yamaguchi University, Toyo Kohan Co., Ltd.
    Inventors: Hideyasu Matsuyama, Yoshihiko Hamamoto, Yusuke Fujita, Yoshiaki Yamamoto, Ryouichi Tsunedomi, Mitsuyoshi Oba, Hirofumi Yamano, Yukiha Ishikawa
  • Patent number: 10982094
    Abstract: Provided is an optical material composition which makes it possible to design an optical material exhibiting a broad range of properties. This optical material composition contains a compound (A) represented by formula (1), 1,2,3,5,6-pentathiepane (b), and if necessary, a compound (B) represented by formula (2). The content of the compound (B) constitutes 0-30 mass % of the total mass of the composition: (In the formula, n m represents an integer which is 0-4, and n represents an integer which is 0-2).
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: April 20, 2021
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Yoshihiko Nishimori, Yosuke Imagawa, Kouhei Takemura, Hiroshi Horikoshi, Yoshiaki Yamamoto
  • Publication number: 20210075338
    Abstract: A series multiplex inverter includes a power conversion unit, a phase difference selection unit, a drive signal generation unit, and a drive signal output unit. The phase difference selection unit selects, from among a plurality of phase difference candidates, the phase difference between rectangular wave voltages from a plurality of single-phase inverters. The drive signal generation unit generates a plurality of drive signals that causes the different single-phase inverters to output a plurality of rectangular wave voltages sequentially out of phase by the phase difference selected by the phase difference selection unit. The drive signal output unit outputs the plurality of drive signals generated by the drive signal generation unit to the plurality of single-phase inverters.
    Type: Application
    Filed: January 30, 2018
    Publication date: March 11, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kazufumi TANAKA, Kazutoshi KURAHASHI, Yoshiaki YAMAMOTO, Shuta ISHIKAWA
  • Publication number: 20210067054
    Abstract: A series multiplex inverter includes a power conversion unit, a drive signal generation unit, and a drive signal output unit. The drive signal generation unit generates n drive signals that cause different single-phase inverters of n single-phase inverters to output n rectangular wave voltages sequentially out of phase, where n is an integer of three or more. The drive signal output unit outputs the n drive signals to the n single-phase inverters in rotation that shifts, by p every m-fold time of half an output voltage period of the power conversion unit, the single-phase inverters corresponding one-to-one to the n drive signals in a combination of the n drive signals with different single-phase inverters of the n single-phase inverters, where m is a natural number and p is a natural number relatively prime to n or one.
    Type: Application
    Filed: January 29, 2018
    Publication date: March 4, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kazufumi TANAKA, Kazutoshi KURAHASHI, Yoshiaki YAMAMOTO, Shuta ISHIKAWA
  • Patent number: 10899677
    Abstract: The present application provides: a microbial material for agricultural use characterized by containing, as an active ingredient, Bacillus subtilis C-3102 strain (FERM BP-1096) that is capable of promoting the growth of crops and/or increasing the yield of crops, or a variant thereof that has an ability equivalent thereto; and a method for cultivating crops characterized by comprising cultivating the crops using a soil or medium that contains the microbial material.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: January 26, 2021
    Assignee: Asahi Biocycle Co., Ltd.
    Inventors: Toki Nishiyama, Taisuke Uesugi, Gentaro Yasuda, Hiroaki Murakami, Yoshiaki Yamamoto
  • Publication number: 20200343120
    Abstract: A heater base of the invention includes a plurality of displacement mechanisms that are arranged between the heater and the heater base and are provided on the heater base. Of the displacement mechanisms, three or more displacement mechanisms are capable of displacing the heater with respect to the heater base in a state of being in contact with the heater.
    Type: Application
    Filed: January 16, 2019
    Publication date: October 29, 2020
    Inventors: Takehisa MIYAYA, Yosuke JIMBO, Yoshiaki YAMAMOTO, Kenji ETO, Yoichi ABE
  • Patent number: 10808848
    Abstract: A valve device includes: a ball valve having a ball face shaped in a convex spherical surface; and a valve seat having a seat face shaped in a concave spherical surface. The seat face is pressed onto the ball face. The ball valve is rotated to open a valve by communicating a valve opening defined in the ball valve and a seat opening defined in the valve seat with each other, and to close the valve by stop the communication. A diameter of the seat opening ?2 is smaller than a diameter of the valve opening ?1. A curvature radius of the ball face R1 is smaller than or equal to a curvature radius of the seat face is R2.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: October 20, 2020
    Assignee: DENSO CORPORATION
    Inventors: Naohito Seko, Yoshiaki Yamamoto, Shinichi Yokoyama, Yuuji Nakano, Ryo Sano
  • Patent number: 10767015
    Abstract: The present invention makes it possible to provide an optical material composition containing an episulfide compound (A), a polythiol compound (B), and a photochromic compound (C). The episulfide compound (A) is preferably a compound represented by formula (1), and the polythiol compound (B) is preferably a compound represented by formula (6). (In formula (1), m represents an integer of 0 to 4, and n represents an integer of 0 to 2.) (In formula (6), n represents an integer of 4 to 20, and R1 and R2 may be the same or different and represent H, SH, C1-10 alkyl groups, or C1-10 alkylthiol groups.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: September 8, 2020
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kota Kinjo, Yoshiaki Yamamoto, Hiroshi Horikoshi