Patents by Inventor Kazuo Takahashi

Kazuo Takahashi 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: 20220219403
    Abstract: A primer-attached thermoplastic resin material having a thermoplastic resin material and one or plural primer layers laminated on the thermoplastic resin material, wherein at least one layer of the primer layers is an in-situ polymerizable composition layer of an in-situ polymerizable composition polymerized on the thermoplastic resin material.
    Type: Application
    Filed: August 3, 2020
    Publication date: July 14, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Kazuo OTANI, Shinji NUMAO, Nobuyuki TAKAHASHI, Ryota NIIBAYASHI
  • Publication number: 20220224270
    Abstract: A winding switching device switches parallel and series connections of windings of a rotating electric machine, and includes a plurality of electrodes that are connected to the windings and a power source, a movable portion in contact with the plurality of electrodes and includes a plurality of conductor portions, and an actuator that drives the movable portion. According to a contact state between the plurality of electrodes and the plurality of conductor portions, the windings are connected in parallel at a first position of the movable portion, and are connected in series at a second position of the movable portion. The electrodes include a first electrode connected to a first phase winding of the rotating electric machine in the plurality of windings, and a second electrode connected to a second phase winding. The first electrode and the second electrode are adjacent to each other, and form a neutral point.
    Type: Application
    Filed: March 23, 2020
    Publication date: July 14, 2022
    Applicant: Hitachi, Ltd.
    Inventors: Shinji SUGIMOTO, Akeshi TAKAHASHI, Kazuo NISHIHAMA
  • Patent number: 11384483
    Abstract: The present invention is directed to a non-moisturizing high-grade type tissue paper having excellent softness wherein the polyol applied to the two-ply tissue paper is not applied by external addition. In various embodiments, the tissue paper has a basis weight per ply of 14.0 to 17.0 g/m2, a paper thickness for two plies of 160 to 220 ?m, and a water content of 4.0 to 9.0% by mass, contains 0.15 to 0.45% by mass of an oily component to be extracted with diethyl ether, and has a bending rigidity of less than 0.006 gf·cm/cm in CD (cross direction) and a bending recovery force of less than 0.005 gf·cm/cm in CD.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: July 12, 2022
    Assignees: DAIO PAPER CORPORATION, TOHOKU UNIVERSITY
    Inventors: Sachiko Takahashi, Kazuo Hokkirigawa, Takeshi Yamaguchi, Kei Shibata
  • Patent number: 11371875
    Abstract: According to an embodiment, a nondestructive inspection method includes: detecting, by a plurality of sensors installed in a truck that supports a vehicle body, an elastic wave generated when a lifting member inserted between the vehicle body and the truck moves the vehicle body up and down; and estimating, by an evaluation device, a position of a defect in the truck, based on the elastic wave detected by the plurality of sensors.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: June 28, 2022
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Kazuo Watabe, Toshiki Takayasu, Takashi Usui, Yoshiyuki Sakamoto, Isao Takahashi
  • Patent number: 11369927
    Abstract: A method for reducing gel in a polymer kneaded compound flowing in a polymer flow duct includes flowing a polymer kneaded compound in a polymer flow duct to a gel reduction mechanism including a gel reduction member having one or more through holes defining a squeezing flow path having a flow path cross-sectional area smaller than the polymer flow duct. The squeeze ratio S1/S2 of the squeezing flow path is 25 to 177.8, where S1 is a flow path cross-sectional area of the polymer flow duct and S2 is a sum total of flow path cross-sectional area of the squeezing flow path, to generate an extensional flow in the kneaded compound.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: June 28, 2022
    Assignee: Kobe Steel, Ltd.
    Inventors: Yoshinori Kuroda, Tsugushi Fukui, Kazuo Yamaguchi, Takaya Uda, Katsunori Takahashi, Sayaka Yamada
  • Patent number: 11274606
    Abstract: A control device for a two-shaft gas turbine power generation facility includes: a basic output calculation unit which obtains a basic output command value in accordance with a required output; a component separation unit which divides the basic output command value into high and low frequency components; an opening degree command output unit which obtains an opening degree of a fuel adjustment valve and outputs an opening degree command to the fuel adjustment valve; a basic power transmission and reception amount calculation unit which obtains a basic power transmission and reception amount of the electric power between an induction motor and a power system on the basis of the high-frequency component; and a power transmission and reception command output unit which outputs a power transmission and reception command indicating a power transmission and reception amount in accordance with the basic power transmission and reception amount to a frequency converter.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: March 15, 2022
    Assignee: MITSUBISHI POWER, LTD.
    Inventors: Kazuo Takahashi, Naoyuki Nagafuchi
  • Patent number: 11181045
    Abstract: Provided is a two-shaft gas turbine power generation equipment that includes: an induction motor which receives/transmits power from/to a power system; and a speed reducer that makes a rotational speed of a motor rotor of the induction motor lower than a rotational speed of a compressor rotor of a two-shaft gas turbine. The speed reducer includes: a compressor-side shaft; a motor-side shaft; a first compressor-side helical gear and a second compressor-side helical gear which are mounted on the compressor-side shaft; and a first motor-side helical gear and a second motor-side helical gear which are mounted on the motor-side shaft. The first compressor-side helical gear meshes with the first motor-side helical gear, and the second compressor-side helical gear meshes with the second motor-side helical gear.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: November 23, 2021
    Assignee: MITSUBISHI POWER, LTD.
    Inventors: Naoyuki Nagafuchi, Toshimitsu Morimoto, Kazuo Takahashi, Hironori Tsukidate
  • Patent number: 11066961
    Abstract: An exhaust heat recovery system includes an evaporator, an expander, a condenser, a pump, a circulation flow path, a cooling medium pipe, a bypass pipe, a first valve, a second valve for switching between a state in which the working medium can flow into the coolie medium piping and a state in which the working medium cannot flow therein, and a controller for performing the switching control of the valves. When a condition under which the temperature of the working medium flowing into the condenser becomes higher than or equal to a predetermined temperature is satisfied, the controller controls the second valve to switch to the state in which the working medium can flow into the cooling medium pipe.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: July 20, 2021
    Assignee: Kobe Steel, Ltd.
    Inventors: Kazuo Takahashi, Shigeto Adachi, Yutaka Narukawa, Kazumasa Nishimura
  • Patent number: 10996127
    Abstract: A pressure detection device includes: a piezoelectric element that detects a pressure change via a diaphragm head or the like; a circuit board that is provided with a processing circuit that performs electrical processing with respect to a charge signal outputted from the piezoelectric element; a conductive housing member, which has conductivity and is disposed to cover (house) the circuit board, and which is connected to the ground of the circuit board; and a housing (a leading end side housing, the diaphragm head and a rear end side housing), which houses the piezoelectric element, the circuit board and the housing member, and which is electrically insulated from the piezoelectric element, the circuit board and the housing member.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: May 4, 2021
    Assignees: CITIZEN FINEDEVICE CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Yuta Kanamori, Masanori Yomoyama, Tetsuya Aiba, Ikuo Takahashi, Hiroshi Nakagawa, Kazuo Takahashi, Yusuke Satoh
  • Publication number: 20200400079
    Abstract: A control device for a two-shaft gas turbine power generation facility includes: a basic output calculation unit which obtains a basic output command value in accordance with a required output; a component separation unit which divides the basic output command value into high and low frequency components; an opening degree command output unit which obtains an opening degree of a fuel adjustment valve and outputs an opening degree command to the fuel adjustment valve; a basic power transmission and reception amount calculation unit which obtains a basic power transmission and reception amount of the electric power between an induction motor and a power system on the basis of the high-frequency component; and a power transmission and reception command output unit which outputs a power transmission and reception command indicating a power transmission and reception amount in accordance with the basic power transmission and reception amount to a frequency converter.
    Type: Application
    Filed: February 22, 2019
    Publication date: December 24, 2020
    Inventors: Kazuo TAKAHASHI, Naoyuki NAGAFUCHI
  • Patent number: 10851678
    Abstract: A thermal energy recovery device includes a circulation flow path for circulating a working fluid, a thermal fluid circulation flow path for circulating hot water, an evaporator for evaporating the working fluid flowing in the circulation flow path by heat of the hot water flowing in the thermal fluid circulation flow path, a preheater for heating the working fluid before flowing into the evaporator by the heat of the hot water flowing in the thermal fluid circulation flow path, and a control unit for controlling a startup operation of the thermal energy recovery device. The control unit executes a suppression control for suppressing a temperature difference between the hot water and the working fluid in the preheater.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: December 1, 2020
    Assignee: Kobe Steel, Ltd.
    Inventors: Kazuo Takahashi, Haruyuki Matsuda, Shigeto Adachi
  • Patent number: 10794160
    Abstract: A geothermal heat recovery device includes a circulation flow path provided with a circulation pump, a heat medium pressurized by the circulation pump circulating through the circulation flow path in a hot liquid state; a heat exchanger installed underground and configured to heat the heat medium flowing through the circulation flow path with underground heat; a binary electricity generation device configured to recover, as electrical energy, thermal energy from the heat medium heated in the heat exchanger; a bypass path connected to the circulation flow path; and an adjustment mechanism configured to adjust a flow division ratio between a flow rate of the heat medium flowing into the heat exchanger and a flow rate of the heat medium bypassing the heat exchanger through the bypass path.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: October 6, 2020
    Assignee: Kobe Steel, Ltd.
    Inventors: Kazuo Takahashi, Shigeto Adachi
  • Patent number: 10794229
    Abstract: A binary cycle power generation system includes a working fluid circulation line, an evaporator, an expander, an energy recovery apparatus, a condenser, and a pump. The pump includes a casing, a rotary shaft, and impellers. The casing is hollow and has an end wall at an end in a longitudinal direction. The rotary shaft has an axis extending in the longitudinal direction of the casing, is supported on the end wall, has at least a part that is in the casing, and rotates owing to a torque. The impellers are attached to the rotary shaft one after another in the longitudinal direction. The pump is arranged in such a way that the axis of the rotary shaft intersects a vertical direction.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: October 6, 2020
    Assignee: Kobe Steel, Ltd.
    Inventors: Kazuo Takahashi, Yuji Tanaka, Shigeto Adachi, Yutaka Narukawa, Kazumasa Nishimura
  • Publication number: 20200291600
    Abstract: A boom includes a body and a base end bracket. The body includes a straight section and a wide section. When viewed from above, a width of the straight section is substantially constant. When viewed from above, a width of the wide section increases toward the base end bracket. The straight section and the wide section are smoothly continuous to each other.
    Type: Application
    Filed: September 28, 2017
    Publication date: September 17, 2020
    Inventors: Nobuyasu SUGIHARA, Yuki NAKATANI, Shinpei UTOU, Kouji SHINKAWA, Satoru KUBOTA, Shuhei WATANABE, Tooru TSUJI, Kazuo TAKAHASHI, Kenji SANADA
  • Patent number: 10775168
    Abstract: Provided is a sensor device that includes a vibrator unit, an annular base portion, a plurality of coupling portions, and a wiring layer. The wiring layer includes a plurality of drive wirings and a plurality of detection wirings. The plurality of drive wirings are respectively connected to first and second drive electrodes while being adjacent and parallel to one another. The plurality of detection wirings are respectively connected to first and second detection electrodes while being adjacent and parallel to one another. The wiring layer is provided at each of the plurality of coupling portions to electrically connect a plurality of terminal portions provided in the base portion with a plurality of piezoelectric drive units and first and second piezoelectric detection units provided in the vibrator unit.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: September 15, 2020
    Assignee: SONY CORPORATION
    Inventors: Satoshi Mitani, Hidetoshi Kabasawa, Kazuo Takahashi, Hideo Niikura
  • Patent number: 10724917
    Abstract: A pressure detection device includes: a cylindrical body made of a conductor; a pressure receiver made of a conductor, the pressure receiver being mounted to one end side of the body and receiving pressure from the outside; a signal generator arranged inside the body, the signal generator being electrically connected to the pressure receiver and generating a signal corresponding to the pressure received by the pressure receiver; and a cover made of an insulator with a lower thermal conductivity than thermal conductivities of the body and the pressure receiver, the cover continuously covering an outer surface of the pressure receiver and a portion of an outer surface of the body, the portion being located at a side closer to the pressure receiver.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: July 28, 2020
    Assignees: CITIZEN FINEDEVICE CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, CITIZEN WATCH CO., LTD.
    Inventors: Yusuke Satoh, Kazuo Takahashi, Aki Sudo, Keisuke Sasaki, Masakatsu Nagai
  • Patent number: 10711993
    Abstract: An exhaust heat recovery device includes: a main passage through which an exhaust gas containing a corrosive component flows; a boiler which heats a heat medium using the exhaust gas; a bypass passage connected to the main passage so as to detour around the boiler; a regulation valve member which regulates a flow rate of the exhaust gas flowing into the boiler; a heat medium circuit which circulates the heat medium that is heated to be in a hot-water state by the boiler; a binary electricity generation device which recovers thermal energy from the heat medium in the heat medium circuit and generates electricity; and a valve control unit which controls an opening of the regulation valve member such that a temperature of the exhaust gas passed through the boiler is equal to or higher than a temperature of an acid dew-point of the corrosive component in the exhaust gas.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: July 14, 2020
    Assignee: Kobe Steel, Ltd.
    Inventor: Kazuo Takahashi
  • Patent number: 10637341
    Abstract: A two-shaft gas turbine facility includes a two-shaft gas turbine, an induction motor connected to a compressor of the two-shaft gas turbine, a secondary battery, a first frequency converter that controls power transmission and reception between a power system and the induction motor, and a second frequency converter that controls charging and discharging of power between the secondary battery and the power system. A first control unit of a control device causes power transmission and reception to be performed between the induction motor and the power system by the first frequency converter if a required output change rate is higher than a maximum output change rate. A second control unit causes the secondary battery to be charged and discharged by the second frequency converter if power to be transmitted to and received from the induction motor has reached maximum allowable power.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: April 28, 2020
    Assignee: MITSUBISHI POWER SYSTEMS, LTD.
    Inventors: Naoyuki Nagafuchi, Toshimitsu Morimoto, Kazuo Takahashi, Atsushi Tsutsumi
  • Publication number: 20190383177
    Abstract: A thermal energy recovery device includes a circulation flow path for circulating a working fluid, a thermal fluid circulation flow path for circulating hot water, an evaporator for evaporating the working fluid flowing in the circulation flow path by heat of the hot water flowing in the thermal fluid circulation flow path, a preheater for heating the working fluid before flowing into the evaporator by the heat of the hot water flowing in the thermal fluid circulation flow path, and a control unit for controlling a startup operation of the thermal energy recovery device. The control unit executes a suppression control for suppressing a temperature difference between the hot water and the working fluid in the preheater.
    Type: Application
    Filed: November 15, 2017
    Publication date: December 19, 2019
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Kazuo TAKAHASHI, Haruyuki MATSUDA, Shigeto ADACHI
  • Publication number: 20190383176
    Abstract: A binary cycle power generation system includes a working fluid circulation line, an evaporator, an expander, an energy recovery apparatus, a condenser, and a pump. The pump includes a casing, a rotary shaft, and impellers. The casing is hollow and has an end wall at an end in a longitudinal direction. The rotary shaft has an axis extending in the longitudinal direction of the casing, is supported on the end wall, has at least a part that is in the casing, and rotates owing to a torque. The impellers are attached to the rotary shaft one after another in the longitudinal direction. The pump is arranged in such a way that the axis of the rotary shaft intersects a vertical direction.
    Type: Application
    Filed: January 18, 2018
    Publication date: December 19, 2019
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Kazuo TAKAHASHI, Yuji TANAKA, Shigeto ADACHI, Yutaka NARUKAWA, Kazumasa NISHIMURA