Patents by Inventor Yasuhiro Okamoto

Yasuhiro Okamoto 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: 20210284682
    Abstract: The object of the present invention is to provide a method for manufacturing an amino acid polymer more simply and efficiently compared to conventional methods for manufacturing amino acid polymers. The present invention provides a method for manufacturing an amino acid polymer with thioacid amino acids. Specifically, the manufacturing method of the present invention comprises (A) a step of preparing first and second thioacid amino acids, (B) a step of subjecting said first and second thioacid amino acids to an oxidation reaction to obtain an amino acid polymer linked by peptide bonds. The manufacturing method of the present invention is characterized in that it partially uses thioacid amino acids that do not possess a protecting group.
    Type: Application
    Filed: February 28, 2018
    Publication date: September 16, 2021
    Inventors: Yasuhiro Kajihara, Masayuki Izumi, Ryo Okamoto, Takuya Haraguchi, Takefumi Murase
  • Publication number: 20210261730
    Abstract: Provided is a polycarbonate-based resin composition, including: a polycarbonate-based resin (5) containing 1 mass % or more to 100 mass % or less of a polycarbonate-polyorganosiloxane copolymer (A), which contains a polycarbonate block (A-1) formed of a specific repeating unit and a polyorganosiloxane block (A-2) containing a specific repeating unit; and 0.05 part by mass or more to 0.5 part by mass or less of a release agent (B) with respect to 100 parts by mass of the polycarbonate-based resin (S), wherein the copolymer (A) contains a polycarbonate-polyorganosiloxane copolymer (Ax) in which the polyorganosiloxane block (A-2) has an average chain length of from 20 to 65, and a polycarbonate-polyorganosiloxane copolymer (Ay) in which the polyorganosiloxane block (A-2) has an average chain length longer than the average chain length of the copolymer (Ax) by 10 or more.
    Type: Application
    Filed: July 2, 2019
    Publication date: August 26, 2021
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yoshio OKAMOTO, Yasuhiro MOGI
  • Publication number: 20210260678
    Abstract: The object of the present invention is to make it possible to maintain a stable electric discharge and to achieve a stable quality and machining performance even when a work having a non-uniform composition is machined. A wire electric discharge machining device performs electric discharge machining on a work while controlling an inter-electrode distance between a wire and the work based on an inter-electrode voltage between the wire and the work so as to match a set target voltage. The wire electric discharge machining device includes an inter-electrode voltage measuring unit that measures the inter-electrode voltage, an actual amplitude calculating unit that calculates an amplitude of the measured inter-electrode voltage, and a target voltage correcting unit that corrects the target voltage in such a way that the calculated amplitude approaches the target amplitude that is set to a value larger than zero.
    Type: Application
    Filed: June 19, 2019
    Publication date: August 26, 2021
    Applicant: MAKINO MILLING MACHINE CO., LTD.
    Inventors: Yasuhiro OKAMOTO, Haruya KURIHARA
  • Publication number: 20210212554
    Abstract: An endoscope includes an insertion portion, an operation portion, a knob protruding from the operation portion to a first side in a direction intersecting a longitudinal direction, a universal cord protruding to a second side in the direction, and a power unit provided in a housing portion disposed on the operation portion on the second side so as not to stick out to the first side with respect to a center axis.
    Type: Application
    Filed: March 29, 2021
    Publication date: July 15, 2021
    Applicant: OLYMPUS CORPORATION
    Inventors: Ramiya UCHIDA, Masanobu KOITABASHI, Yasuhiro OKAMOTO
  • Publication number: 20210217888
    Abstract: To improve characteristics of a semiconductor device. A first p-type semiconductor region having an impurity of a conductivity type opposite from that of a drift layer is arranged in the drift layer below a trench, and a second p-type semiconductor region is further arranged that is spaced at a distance from a region where the trench is formed as seen from above and that has the impurity of the conductivity type opposite from that of the drift layer. The second p-type semiconductor region is configured by a plurality of regions arranged at a space in a Y direction (depth direction in the drawings). Thus, it is possible to reduce the specific on-resistance while maintaining the breakdown voltage of the gate insulating film by providing the first and second p-type semiconductor regions and further by arranging the second p-type semiconductor region spaced by the space.
    Type: Application
    Filed: March 29, 2021
    Publication date: July 15, 2021
    Inventors: Atsushi SAKAI, Katsumi EIKYU, Satoshi EGUCHI, Nobuo MACHIDA, Koichi ARAI, Yasuhiro OKAMOTO, Kenichi HISADA, Yasunori YAMASHITA
  • Patent number: 11060600
    Abstract: An external mechanism for endoscope includes: an abutment surface that is a first surface configured to cover a knob arranging surface at which a second bending operation knob is arranged in an operation portion of an endoscope; a wheel configured to engage with the second bending operation knob arranged at the knob arranging surface; a motor configured to generate a driving force for rotating the wheel; a housing case that houses the wheel and the motor; a case attaching/detaching and fixing section for detachably attaching the housing case to the operation portion of the endoscope; and a locking member provided at the housing case and configured to be locked on the knob arranging surface of the endoscope and a large-diameter portion end face adjacent to the knob arranging surface in the operation portion of the endoscope.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: July 13, 2021
    Assignee: OLYMPUS CORPORATION
    Inventors: Ramiya Uchida, Masanobu Koitabashi, Yasuhiro Okamoto
  • Publication number: 20210159315
    Abstract: To improve an on-resistance of a semiconductor device. A plurality of collector regions are formed at a predetermined interval on a bottom surface of a drift layer made of SiC. Next, on the bottom surface of the drift layer, both of the drift layer and a collector region via a silicide layer are connected to a collector electrode.
    Type: Application
    Filed: October 12, 2020
    Publication date: May 27, 2021
    Inventors: Yasuhiro OKAMOTO, Nobuo MACHIDA
  • Publication number: 20210135018
    Abstract: In a Schottky barrier diode region, a Schottky barrier diode is formed between an n-type drift layer and a metal layer, and in a body diode region, a p-type semiconductor region, a p-type semiconductor region, and a p-type semiconductor region are formed in order from a main surface side in the drift layer, and a body diode is formed between the p-type semiconductor region and the drift layer. An impurity concentration of the p-type semiconductor region is decreased lower than the impurity concentration of the p-type semiconductor regions, thereby increasing the reflux current flowing through the Schottky barrier diode and preventing the reflux current from flowing through the body diode.
    Type: Application
    Filed: December 14, 2020
    Publication date: May 6, 2021
    Inventors: Yasuhiro OKAMOTO, Nobuo MACHIDA, Kenichi HISADA
  • Publication number: 20210105385
    Abstract: An external mechanism for an endoscope includes: a bending wheel configured to engage with a second UD knob of a second bending operation device provided in an operation portion of an endoscope; a motor portion configured to generate a driving force for rotating the bending wheel; a housing case housing the bending wheel and the motor portion and detachably attached to the operation portion, and an operation switch arranged outside the housing case and configured to output a control signal to the motor portion due to the operating element being operated, in which the operation switch is pivotally supported by the rotation shaft and rotates with respect to the housing case.
    Type: Application
    Filed: November 10, 2020
    Publication date: April 8, 2021
    Applicant: OLYMPUS CORPORATION
    Inventors: Ramiya UCHIDA, Masanobu KOITABASHI, Yasuhiro OKAMOTO
  • Publication number: 20210095753
    Abstract: An external mechanism for endoscope includes: an abutment surface that is a first surface configured to cover a knob arranging surface at which a second bending operation knob is arranged in an operation portion of an endoscope; a wheel configured to engage with the second bending operation knob arranged at the knob arranging surface; a motor configured to generate a driving force for rotating the wheel; a housing case that houses the wheel and the motor; a case attaching/detaching and fixing section for detachably attaching the housing case to the operation portion of the endoscope; and a locking member provided at the housing case and configured to be locked on the knob arranging surface of the endoscope and a large-diameter portion end face adjacent to the knob arranging surface in the operation portion of the endoscope.
    Type: Application
    Filed: November 24, 2020
    Publication date: April 1, 2021
    Applicant: OLYMPUS CORPORATION
    Inventors: Ramiya UCHIDA, Masanobu KOITABASHI, Yasuhiro OKAMOTO
  • Publication number: 20210074816
    Abstract: Semiconductor device has a cell region and a peripheral region, and has a drift layer, a trench, an gate dielectric film on an inner wall of the trench, a gate electrode, and a p-type first semiconductor region below the trench in the cell region on a semiconductor substrate. Further, in the peripheral region on the semiconductor substrate, p-type second semiconductor region is formed in the same layer as the p-type first semiconductor region. a width of the p-type first semiconductor region and a width of the p-type second semiconductor region are different.
    Type: Application
    Filed: August 18, 2020
    Publication date: March 11, 2021
    Inventors: Atsushi SAKAI, Katsumi EIKYU, Yasuhiro OKAMOTO, Kenichi HISADA, Nobuo MACHIDA
  • Publication number: 20210063723
    Abstract: An external mechanism for endoscope includes a bending wheel, a motor, a housing case, and an operation switch, a case side fitting surface and a switch side fitting surface are formed flat to each other, and when a protrusion is provided on a contact surface of the housing case, a recess is provided on a contact surface of the operation switch, whereas when a protrusion is provided on the contact surface of the operation switch, a recess is provided on the contact surface of the housing case.
    Type: Application
    Filed: November 13, 2020
    Publication date: March 4, 2021
    Applicant: OLYMPUS CORPORATION
    Inventors: Ramiya UCHIDA, Masanobu KOITABASHI, Yasuhiro OKAMOTO
  • Patent number: 10896980
    Abstract: In a Schottky barrier diode region, a Schottky barrier diode is formed between an n-type drift layer and a metal layer, and in a body diode region, a p-type semiconductor region, a p-type semiconductor region, and a p-type semiconductor region are formed in order from a main surface side in the drift layer, and a body diode is formed between the p-type semiconductor region and the drift layer. An impurity concentration of the p-type semiconductor region is decreased lower than the impurity concentration of the p-type semiconductor regions, thereby increasing the reflux current flowing through the Schottky barrier diode and preventing the reflux current from flowing through the body diode.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: January 19, 2021
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Yasuhiro Okamoto, Nobuo Machida, Kenichi Hisada
  • Publication number: 20210003983
    Abstract: Provided are an inspection support method, inspection support apparatus, and inspection support program that are able to efficiently make an inspection plan for a production facility.
    Type: Application
    Filed: December 14, 2018
    Publication date: January 7, 2021
    Inventors: Yasuhiro OKAMOTO, Hisanori KAWASHIMA, Ryo MINEGISHI, Shunsuke TAKAMURA, Takashi OHTA
  • Publication number: 20200397227
    Abstract: An external mechanism for endoscope includes a bending wheel, a motor, a housing case, a case detachably fixing member, and a mounting restricting member obstructing mounting of a housing case on a sub operation section by interfering with a second bending upward and downward fixing lever in a state where the second bending upward and downward fixing lever is at a position other than a release position.
    Type: Application
    Filed: June 15, 2020
    Publication date: December 24, 2020
    Applicant: OLYMPUS CORPORATION
    Inventor: Yasuhiro OKAMOTO
  • Publication number: 20200397226
    Abstract: An external mechanism for endoscope includes a wheel configured to be engaged with a second bending operation up and down knob of a second bending operation apparatus provided in an operation portion of an endoscope, a motor configured to generate driving force for rotating the wheel, an operation switch configured to output a driving control signal for the motor, a container case that contains the wheel and the motor, a case attachment and detachment fixation member with which the container case can be attached to and detached from the operation portion, and a switch case attached to the container case and configured to be able to turn between a first position that covers a part of the operation portion and a second position away from the first position.
    Type: Application
    Filed: June 17, 2020
    Publication date: December 24, 2020
    Applicant: OLYMPUS CORPORATION
    Inventor: Yasuhiro OKAMOTO
  • Patent number: 10863887
    Abstract: An endoscope includes a flexible tube section including coiled tubes, a motor disposed on a proximal side of the flexible tube section, a driving force transmission unit disposed on a distal side of the flexible tube section, and a drive shaft provided inside the flexible tube section along a long axis, the drive shaft being caused to perform rotation around the long axis by a driving force of the motor and to transmit the rotation of the motor to the driving force transmission unit, where torsional resistance of the flexible tube section around the long axis is set higher than torsional resistance between a relay gear of the motor and a drive gear of the driving force transmission unit through the drive shaft.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: December 15, 2020
    Assignee: OLYMPUS CORPORATION
    Inventor: Yasuhiro Okamoto
  • Publication number: 20200367725
    Abstract: An external mechanism for endoscope includes a wheel engaged with a second bending operation up and down knob of a second bending operation apparatus provided in an operation portion of an endoscope, a motor configured to generate driving force for rotating the wheel, an operation switch for outputting a driving control signal to the motor, a container case containing the wheel and the motor, a case attachment and detachment fixation member with which the container case can be attached to and detached from the operation portion, a switch case attached to the container case and configured to be able to turn between a first position covering a part of the operation portion and a second position away from the first position, and a dummy switch provided in the switch case and configured to operate a remote switch arranged in the operation portion in the first position via the switch case.
    Type: Application
    Filed: June 15, 2020
    Publication date: November 26, 2020
    Applicant: OLYMPUS CORPORATION
    Inventor: Yasuhiro OKAMOTO
  • Patent number: 10736493
    Abstract: An insertion device includes a shape-variable tube elastically returning while the shape-variable tube bends at a tube bending radius of a tube radius boundary value or more, and a shaft rotating around a shaft axis inside the shape-variable tube so that the shaft transmits a driving force to drive a motion section from a first extending direction toward a second extending direction. The shaft elastically returns while the shaft bends at a shaft bending radius of a shaft radius boundary value or more, and rotates without being deformed while the elastic return is impossible when the shape-variable tube bends in an elastically returnable range.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: August 11, 2020
    Assignee: OLYMPUS CORPORATION
    Inventor: Yasuhiro Okamoto
  • Publication number: 20200161480
    Abstract: In a Schottky barrier diode region, a Schottky barrier diode is formed between an n-type drift layer and a metal layer, and in a body diode region, a p-type semiconductor region, a p-type semiconductor region, and a p-type semiconductor region are formed in order from a main surface side in the drift layer, and a body diode is formed between the p-type semiconductor region and the drift layer. An impurity concentration of the p-type semiconductor region is decreased lower than the impurity concentration of the p-type semiconductor regions, thereby increasing the reflux current flowing through the Schottky barrier diode and preventing the reflux current from flowing through the body diode.
    Type: Application
    Filed: October 10, 2019
    Publication date: May 21, 2020
    Inventors: Yasuhiro OKAMOTO, Nobuo MACHIDA, Kenichi HISADA