Patents by Inventor Hiroyuki Takayama

Hiroyuki Takayama 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: 20210131036
    Abstract: Provided is an oxidized microfibrillated cellulose fiber having a Canada standard freeness of not less than 200 mL and an average fiber diameter of not less than 500 nm. Said fiber enhances paper strength when added to a paper.
    Type: Application
    Filed: March 28, 2019
    Publication date: May 6, 2021
    Inventors: Masato Takayama, Yoshihiro Aoki, Takanori Otsuhata, Takeo Izumiya, Hiroyuki Okumura, Tomonori Kawamata, Ryo Sotooka
  • Publication number: 20210131037
    Abstract: Provided is an oxidized microfibrillated cellulose fiber having a Canada standard freeness of less than 200 mL and an average fiber diameter of not less than 500 nm. Said fiber provides a composition having excellent water retention ability.
    Type: Application
    Filed: March 28, 2019
    Publication date: May 6, 2021
    Inventors: Masato Takayama, Yoshihiro Aoki, Takanori Otsuhata, Takeo Izumiya, Hiroyuki Okumura, Tomonori Kawamata, Ryo Sotooka
  • Publication number: 20210115160
    Abstract: Provided is a carboxymethylated microfibrillated cellulose fiber having a Canada standard freeness of less than 200 mL and an average fiber diameter of not less than 500 nm. Said fiber provides a composition having excellent water retention ability.
    Type: Application
    Filed: March 28, 2019
    Publication date: April 22, 2021
    Inventors: Masato Takayama, Yoshihiro Aoki, Takanori Otsuhata, Takeo Izumiya, Hiroyuki Okumura, Tomonori Kawamata, Ryo Sotooka
  • Publication number: 20200252017
    Abstract: An electric motor drive device includes: a wire connection switching unit; an inverter; a control device controlling the wire connection switching unit and the inverter; and an overcurrent protection circuit preventing current exceeding a predetermined value from continuously flowing through the electric motor. The overcurrent protection circuit includes: determination circuits each correlated one-to-one with any one of possible wire connection states of a stator winding and determining whether current flowing through the inverter is abnormal; a combining circuit combining determination results; and an invalidation circuit invalidating a determination process by one or more of the determination circuits, and causing the combining circuit to output a determination result by the determination circuit correlated with a selected wire connection state of the stator winding.
    Type: Application
    Filed: October 24, 2017
    Publication date: August 6, 2020
    Inventors: Hiroyuki TAKAYAMA, Kazunori HATAKEYAMA, Keiichiro SHIZU
  • Publication number: 20200246098
    Abstract: A bending mechanism includes: an elongated support member; a swivel that is pivotably connected to a distal end of the support member; a first link that can transmit a driving force applied at the proximal end, to make the swivel pivot with respect to the support member; a second link that can transmit a driving force applied at the proximal end, to make the swivel pivot with respect to the support member; and a connector that is provided on at least one of the first and second links and that can switch the coupled state of one of the first and second links when a pivoting angle of the swivel exceeds a threshold such that the permissible stress of the one of the links has become less than the permissible stress of the other.
    Type: Application
    Filed: April 21, 2020
    Publication date: August 6, 2020
    Applicant: OLYMPUS CORPORATION
    Inventor: Hiroyuki TAKAYAMA
  • Publication number: 20200225254
    Abstract: The automatic analyzer includes a gear pump that supplies cleaning water to reagent probes and sample probes; a cleaning flow path that feeds the cleaning water discharged from the gear pump to the respective probes; a pressure sensor that measures pressure of the cleaning flow path; a return flow path that is disposed in parallel to the gear pump and connects a discharging port side of the gear pump and an aspirating port side thereof; a throttling unit that is disposed in the return flow path and adjusts a flow rate of the cleaning water flowing through the return flow path; and a control unit that changes an opening and closing degree of the throttling unit according to a measurement result of the pressure sensor. Accordingly, it is unnecessary to control driving of a pump used for cleaning a probe while having a low cost and a small mounting size.
    Type: Application
    Filed: August 7, 2017
    Publication date: July 16, 2020
    Inventors: Masaki HARA, Tetsuji KAWAHARA, Hiroyuki TAKAYAMA
  • Patent number: 10684034
    Abstract: An outdoor unit of an air conditioner includes a compressor-driving inverter circuit to convert direct current power for driving a compressor into pseudo three-phase alternating current power using a plurality of switching elements; a fan rotational speed detection unit to detect the fan rotational speed of a fan that cools the switching elements; an ambient temperature detection unit to detect the ambient temperature at a location where the air conditioner is located; and a compressor inverter drive unit to control the compressor rotational speed of the compressor by controlling the compressor-driving inverter circuit. The compressor inverter drive unit controls the compressor-driving inverter circuit on the basis of the fan rotational speed and the ambient temperature.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: June 16, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventor: Hiroyuki Takayama
  • Publication number: 20200114527
    Abstract: A joint structure of a manipulator includes: swiveling members that are coupled so as to be able to swivel via a rolling contact; shafts that constitute bending joints between the swiveling members and that are parallel to each other; pulleys that are rotatably supported about the shafts; and a connector attached to the shafts so as to be able to swivel about longitudinal axes of the shafts. The connector includes supports that are disposed on axial ends of the shafts so as to sandwich the pulleys therebetween in a direction of the longitudinal axis, and a beam that extends in between the supports to couple the supports to each other.
    Type: Application
    Filed: December 10, 2019
    Publication date: April 16, 2020
    Applicant: OLYMPUS CORPORATION
    Inventors: Kayuri KIMURA, Shuya JOGASAKI, Hiroyuki TAKAYAMA, Noriaki YAMANAKA
  • Patent number: 10591498
    Abstract: Provided is an automatic analyzer capable of replacing an insertion mechanism while suppressing occurrence of dispensing abnormality and analysis result abnormality accompanying deterioration of the insertion mechanism. Included are an insertion mechanism that is inserted into a closed container through a lid of the container; a storage unit that stores an insertion history count corresponding to a cumulative load of the insertion mechanism caused by inserting the insertion mechanism into a plurality of the containers, and an allowable insertion history count which is an allowable value of the insertion history count; and a control unit that compares the insertion history count with the allowable insertion history count and performs control to make a notification to an operator in a case where the insertion history count reaches the allowable insertion history count.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: March 17, 2020
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Koichi Nishimura, Hiroyuki Takayama
  • Publication number: 20200078122
    Abstract: A bending mechanism includes: a support member; a pivoting member supported at a distal end of the support member to be pivotable about an axis intersecting the longitudinal axis of the support member; a link disposed along the longitudinal axis and transmitting a force applied at a proximal end thereof to cause the pivoting member to pivot; and an adjuster adjusting stresses in the link so as not to exceed a threshold, at each pivoting position of the pivoting member with respect to the support member. The link includes a first member connected to the pivoting member and a second member disposed closer to the proximal end than the first member is. The adjuster includes a movable member moving in predetermined direction when the first and second members are relatively moved, and a spring biasing the movable member in such direction as to prevent the movement of the movable member.
    Type: Application
    Filed: November 12, 2019
    Publication date: March 12, 2020
    Applicant: OLYMPUS CORPORATION
    Inventor: Hiroyuki TAKAYAMA
  • Patent number: 10422808
    Abstract: A rinse mechanism rinses reaction cuvettes with first and second detergents. An R1 reagent pipetting mechanism 8 rinses the reaction cuvettes that have been rinsed by the rinse mechanism with a special detergent. A counting unit counts and stores in a storage unit a use frequency of each reaction cuvette for a specific reagent item. A determining unit determines whether the counted use frequency exceeds a predetermined threshold N1. A control unit controls the R1 reagent pipetting mechanism such that, in a case where the counted use frequency exceeds the predetermined threshold N1, the reaction cuvettes, which have exceeded the predetermined threshold N1, are soaked with the special detergent only for a period equal to or less than a value derived by multiplying a pipetting cycle time, which indicates a period when a sample is pipetted, by the total number of reaction cuvettes and a predetermined integer.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: September 24, 2019
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Hiroyuki Takayama, Kazuhiro Nakamura
  • Publication number: 20190269473
    Abstract: A bending mechanism includes: an elongated support member; a swivel that is supported at a distal end of the support member so as to swivel around an axis that intersects a longitudinal axis of the support member; a transmitter that are arranged along the longitudinal axis of the support member, transmits a driving force applied at a proximal end thereof, and makes the swivel swivel relative to the support member; and a regulator that regulates stress generated in the transmitter at each swivel position of the swivel with respect to the support member such that the stress does not exceed a prescribed threshold.
    Type: Application
    Filed: May 21, 2019
    Publication date: September 5, 2019
    Applicant: OLYMPUS CORPORATION
    Inventors: Hiroyuki TAKAYAMA, Noriaki YAMANAKA
  • Publication number: 20190203962
    Abstract: An outdoor unit of an air conditioner includes a compressor-driving inverter circuit to convert direct current power for driving a compressor into pseudo three-phase alternating current power using a plurality of switching elements; a fan rotational speed detection unit to detect the fan rotational speed of a fan that cools the switching elements; an ambient temperature detection unit to detect the ambient temperature at a location where the air conditioner is located; and a compressor inverter drive unit to control the compressor rotational speed of the compressor by controlling the compressor-driving inverter circuit. The compressor inverter drive unit controls the compressor-driving inverter circuit on the basis of the fan rotational speed and the ambient temperature.
    Type: Application
    Filed: May 31, 2016
    Publication date: July 4, 2019
    Inventor: Hiroyuki TAKAYAMA
  • Publication number: 20180180636
    Abstract: A rinse mechanism rinses reaction cuvettes with first and second detergents. An R1 reagent pipetting mechanism 8 rinses the reaction cuvettes that have been rinsed by the rinse mechanism with a special detergent. A counting unit counts and stores in a storage unit a use frequency of each reaction cuvette for a specific reagent item. A determining unit determines whether the counted use frequency exceeds a predetermined threshold N1. A control unit controls the R1 reagent pipetting mechanism such that, in a case where the counted use frequency exceeds the predetermined threshold N1, the reaction cuvettes, which have exceeded the predetermined threshold N1, are soaked with the special detergent only for a period equal to or less than a value derived by multiplying a pipetting cycle time, which indicates a period when a sample is pipetted, by the total number of reaction cuvettes and a predetermined integer.
    Type: Application
    Filed: February 27, 2018
    Publication date: June 28, 2018
    Inventors: Hiroyuki TAKAYAMA, Kazuhiro NAKAMURA
  • Patent number: 9933447
    Abstract: A rinse mechanism rinses reaction cuvettes with first and second detergents. An R1 reagent pipetting mechanism 8 rinses the reaction cuvettes that have been rinsed by the rinse mechanism with a special detergent. A counting unit counts and stores in a storage unit a use frequency of each reaction cuvette for a specific reagent item. A determining unit determines whether the counted use frequency exceeds a predetermined threshold N1. A control unit controls the R1 reagent pipetting mechanism such that, in a case where the counted use frequency exceeds the predetermined threshold N1, the reaction cuvettes, which have exceeded the predetermined threshold N1, are soaked with the special detergent only for a period equal to or less than a value derived by multiplying a pipetting cycle time, which indicates a period when a sample is pipetted, by the total number of reaction cuvettes and a predetermined integer.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: April 3, 2018
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Hiroyuki Takayama, Kazuhiro Nakamura
  • Publication number: 20180038879
    Abstract: Provided is an automatic analyzer capable of replacing an insertion mechanism while suppressing occurrence of dispensing abnormality and analysis result abnormality accompanying deterioration of the insertion mechanism. Included are an insertion mechanism that is inserted into a closed container through a lid of the container; a storage unit that stores an insertion history count corresponding to a cumulative load of the insertion mechanism caused by inserting the insertion mechanism into a plurality of the containers, and an allowable insertion history count which is an allowable value of the insertion history count; and a control unit that compares the insertion history count with the allowable insertion history count and performs control to make a notification to an operator in a case where the insertion history count reaches the allowable insertion history count.
    Type: Application
    Filed: February 1, 2016
    Publication date: February 8, 2018
    Inventors: Koichi NISHIMURA, Hiroyuki TAKAYAMA
  • Publication number: 20160061852
    Abstract: A rinse mechanism rinses reaction cuvettes with first and second detergents. An R1 reagent pipetting mechanism 8 rinses the reaction cuvettes that have been rinsed by the rinse mechanism with a special detergent. A counting unit counts and stores in a storage unit a use frequency of each reaction cuvette for a specific reagent item. A determining unit determines whether the counted use frequency exceeds a predetermined threshold N1. A control unit controls the R1 reagent pipetting mechanism such that, in a case where the counted use frequency exceeds the predetermined threshold N1, the reaction cuvettes, which have exceeded the predetermined threshold N1, are soaked with the special detergent only for a period equal to or less than a value derived by multiplying a pipetting cycle time, which indicates a period when a sample is pipetted, by the total number of reaction cuvettes and a predetermined integer.
    Type: Application
    Filed: April 3, 2014
    Publication date: March 3, 2016
    Inventors: Hiroyuki TAKAYAMA, Kazuhiro NAKAMURA
  • Publication number: 20150234375
    Abstract: An axial offset correcting method of a tool coordinate system of a robot also including an inclination offset correction is provided. A first workpiece is grasped by a tool. The operation of a robot arm is controlled by using detecting quantities of a force sensor, thereby starting a fitting of the first workpiece into a second workpiece. A position of an origin of a mechanical interface coordinate system in at least two different states during the fitting operation is obtained, thereby obtaining a position of a central axis of the first workpiece. An inclination offset quantity of the tool coordinate system is calculated based on the position of the central axis of the first workpiece. An inclination offset of the tool coordinate system is corrected based on the calculated inclination offset quantity.
    Type: Application
    Filed: February 5, 2015
    Publication date: August 20, 2015
    Inventor: Hiroyuki Takayama
  • Publication number: 20150211130
    Abstract: An anti-corrosive agent for washing of a metal with an acid, which comprises an amphoteric polymeric compound (P) having at least one cationic constituent unit (A) having a specific structure, at least one anionic constituent unit (B) having a specific structure and a specific sulfur-containing constituent unit (C).
    Type: Application
    Filed: April 10, 2015
    Publication date: July 30, 2015
    Inventors: Hiroyuki TAKAYAMA, Yasuhito NAKATA
  • Patent number: 8680221
    Abstract: Provided is a method for producing a diallylamine acetate polymer comprising polymerizing diallylamine acetate in water or a polar solvent in the presence of a radical initiator, the radical initiator being an organic acid addition salt of a specific cyclic amidinoazo compound, and a diallylamine acetate polymer solution free of halogen.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: March 25, 2014
    Assignee: Nitto Boseki Co., Ltd.
    Inventors: Yusuke Fukushima, Yasuhito Nakata, Hiroyuki Takayama