Patents Assigned to Kelk Ltd.
  • Patent number: 11953491
    Abstract: A detection device that is capable of being attached to a through hole includes a main body portion, a detection portion, a cover portion, an insulation portion, and an oscillation portion. The main body portion has an insertion portion and a head portion. The detection portion is arranged in the insertion portion and detects the state of a fluid. The cover portion is arranged so as to form a gap with the head portion. The insulating portion has a lateral wall having a cylindrical shape. An oscillation portion is accommodated inside the insulation portion, and performs a wireless output of a detection result of the detection portion by using the head portion, the cover portion and the gap as a slot antenna.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: April 9, 2024
    Assignee: KELK Ltd.
    Inventors: Kazuji Sasaki, Tomonori Murata, Daisuke Goto
  • Patent number: 11957054
    Abstract: A thermoelectric generator includes a thermoelectric generation module, a power storage unit configured to store electric charge generated from the thermoelectric generation module, a switching unit configured to switch between supply and stop of discharge to a transceiver (transmission/reception unit) driven by discharge from the power storage unit, and a determination unit configured to determine stop of discharge from the power storage unit, in which the determination unit determines stop of discharge before completion of discharge from the power storage unit.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: April 9, 2024
    Assignee: KELK Ltd.
    Inventor: Isao Shibata
  • Patent number: 11955353
    Abstract: A temperature adjustment device includes a flow path plate that includes a flow path groove, a heat transfer plate that faces the flow path groove, and a thermoelectric module plate that is connected to the heat transfer plate. A surface roughness of the flow path plate is 0.20 ?m or more and 0.25 ?m or less.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: April 9, 2024
    Assignee: KELK Ltd.
    Inventors: Atsushi Kobayashi, Hideaki Ohkubo
  • Publication number: 20240099141
    Abstract: A thermoelectric module includes: a lower substrate; an upper substrate that is disposed above the lower substrate and faces the lower substrate; a plurality of p-type and n-type thermoelectric elements that are disposed between the lower substrate and the upper substrate; a first electrode that is disposed on an upper surface of the lower substrate and a lower surface of the upper substrate and forms a series circuit by alternately and sequentially connecting the p-type and n-type thermoelectric elements; and a second electrode that is provided on the lower substrate and connects a thermoelectric element at an end portion of the series circuit and a post. The post includes a post main body that is formed of titanium, and a titanium passive film that covers a side surface of the post main body.
    Type: Application
    Filed: October 5, 2020
    Publication date: March 21, 2024
    Applicant: KELK Ltd.
    Inventors: Hiroyuki Matsunami, Tetsushi Tanaka
  • Patent number: 11935767
    Abstract: A temperature control device includes: a top plate that supports a substrate; a base plate connected to the top plate so as to form an internal space with the top plate; a thermoelectric module plate arranged in the internal space; a heat exchange plate that is arranged in the internal space and exchanges heat with the thermoelectric module plate; a first coupling member that couples the top plate and the base plate via the thermoelectric module plate and the heat exchange plate and is fixed to each of the top plate and the base plate; and a second coupling member that couples the top plate and the base plate via the thermoelectric module plate and the heat exchange plate, is fixed to the top plate, and is movable relative to the base plate.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: March 19, 2024
    Assignee: Kelk Ltd.
    Inventors: Atsushi Kobayashi, Masato Horikoshi, Hideaki Ohkubo, Wataru Kiyosawa
  • Patent number: 11930708
    Abstract: A thermoelectric generation module includes a first substrate and a second substrate, a plurality of first electrodes and second electrodes that are arranged on the first substrate and the second substrate, a thermoelectric conversion element arranged between the first electrode and the second electrode, and a terminal pin connected to the second electrode. The second substrate includes an insulator layer made of an electrical insulating material, a through-hole that penetrates the insulator layer for insertion of the terminal pin, and an annular metal layer arranged at a peripheral portion of the through-hole. A space between the terminal pin and the through-hole is sealed by solder.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: March 12, 2024
    Assignee: KELK Ltd.
    Inventor: Masakazu Oba
  • Patent number: 11920973
    Abstract: An analysis device includes a vibration sensor that detects vibration of a machine, a calculation unit that calculates an average value of detection data of the vibration sensor in each predetermined cycle interval, converts a plurality of data points included in each interval to one data point indicating the average value to reduce calculation points, and performs vibration analysis with the reduced calculation points, and a wireless communication device that transmits processed data output from the vibration analysis performed by the calculation unit.
    Type: Grant
    Filed: January 5, 2022
    Date of Patent: March 5, 2024
    Assignee: KELK Ltd.
    Inventor: Tomonori Murata
  • Patent number: 11906471
    Abstract: An analysis device includes a vibration sensor that detects vibration of a machine, a calculation unit that defines a peak value on the basis of a standard deviation of detection data of the vibration sensor, and a wireless communication device that transmits processed data output from calculation performed by the calculation unit.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: February 20, 2024
    Assignee: KELK Ltd.
    Inventor: Tomonori Murata
  • Patent number: 11903316
    Abstract: A thermoelectric module includesa plurality of electrodes (high temperature side electrodes and low temperature side electrodes, thermoelectric conversion elements (p-type element and n-type element) arranged between the two electrodes, and a bonding layer disposed between the electrodes and the thermoelectric conversion elements. The bonding layer includes copper-containing particles, copper balls each having a particle diameter of 30 ?m or more, an intermetallic compound of copper and tin, and a fired resin.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: February 13, 2024
    Assignee: KELK Ltd.
    Inventors: Toshihiko Kishizawa, Shinichi Fujimoto, Manabu Ishii, Hideaki Yamagishi, Fumitaka Ueno
  • Publication number: 20240014051
    Abstract: A wafer temperature control device includes a temperature control sheet; and a top plate. The temperature control sheet includes a plurality of temperature control portions. The plurality of temperature control portions are divided from each other via a division region in the same plane. The plurality of temperature control portions are each independently controllable in temperature. The top plate includes a plate body stacked on the temperature control sheet. A surface of the plate body serves as a placement surface for a semiconductor wafer, the surface being opposite the temperature control sheet. The top plate includes a heat insulating portion. The heat insulating portion is disposed at a position corresponding to the division region in the plate body, when viewed in a stacking direction of the temperature control sheet and the top plate. The heat insulating portion has a thermal conductivity lower than a thermal conductivity of the plate body.
    Type: Application
    Filed: September 1, 2021
    Publication date: January 11, 2024
    Applicant: KELK Ltd.
    Inventors: Atsushi Kobayashi, Wataru Omuro
  • Patent number: 11867433
    Abstract: A temperature regulation device includes: a first temperature regulation unit that regulates a temperature of a liquid; and a second temperature regulation unit that regulates a temperature of the liquid supplied from the first temperature regulation unit. The first temperature regulation unit includes: a first flow path module having a first flow path of the liquid; and a base module that regulates a temperature of the liquid of the first flow path. The second temperature regulation unit includes: a second flow path module having a second flow path in which the liquid from the first flow path flows; and a Peltier module that regulates a temperature of the liquid of the second flow path. The base module regulates a temperature of the Peltier module.
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: January 9, 2024
    Assignee: KELK Ltd.
    Inventors: Kouhei Shimoyama, Koji Maeda, Masato Horikoshi, Tomomi Nakazato
  • Patent number: 11811179
    Abstract: An electrode connection structure includes a first electrode unit that includes first electrodes formed concentrically, and a second electrode unit that includes a second electrode formed into a needle shape axially movable forward and rearward and is electrically connectable to the first electrode unit, and in the electrode connection structure, the second electrode unit includes a plurality of the second electrodes that is arranged in a circumferential direction and arranged at different radial positions, and the plurality of the second electrodes is electrically connected to the first electrodes arranged at different radial positions, respectively.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: November 7, 2023
    Assignee: KELK Ltd.
    Inventor: Tomonori Murata
  • Patent number: 11797033
    Abstract: To control the temperature of a fluid with high accuracy, a temperature control system is equipped with: a circulation channel including a temperature control target and a tank containing a fluid adjusted to a specified temperature range including a target temperature of the temperature control target; and a first temperature controller that is arranged between the tank and the temperature control target in the circulation channel and that adjusts the temperature of the fluid to be supplied to the temperature control target.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: October 24, 2023
    Assignee: KELK Ltd.
    Inventors: Atsushi Kobayashi, Hideaki Ohkubo, Kazuhiro Mimura, Toru Suzuki
  • Patent number: 11765974
    Abstract: A thermoelectric power generation device includes: a high-temperature plate having an upper face; a low-temperature plate having a lower face; a thermoelectric module disposed between the upper face and the lower face; a sealing portion disposed between the upper and lower faces, the sealing portion sealing the thermoelectric module at a circumferential portion of the upper face and a circumferential portion of the lower face; a first positioning portion disposed at the circumferential portion of the upper face; and a second positioning portion disposed at the circumferential portion of the lower face. The first positioning portion positions the sealing portion at the circumferential portion of the upper face, and the second positioning portion positions the sealing portion at the circumferential portion of the lower face.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: September 19, 2023
    Assignee: KELK Ltd.
    Inventors: Toshihiko Kishizawa, Masakazu Oba
  • Patent number: 11669113
    Abstract: A temperature control device includes a smoother including a smoothing channel through which fluid from a first inlet flows, and a first outlet from which the fluid flowed through the smoothing channel flows out, the smoother making a temperature fluctuation amount of the fluid in the first outlet smaller than that in the first inlet, a thermoregulator including a second inlet into which the fluid from the first outlet flows, a thermoregulating channel through which the fluid from the second inlet flows, a thermoregulating unit regulating a temperature of the fluid flowing through the thermoregulating channel, and a second outlet from which the fluid flowed through the thermoregulating channel flows out, calculating a temperature regulation amount of the thermoregulating unit, based on temperature of the fluid in the smoothing channel, and calculating the temperature regulation amount, based on temperature of the fluid at a position downstream of the second outlet.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: June 6, 2023
    Assignee: KELK Ltd.
    Inventors: Kazuhiro Mimura, Atsushi Kobayashi
  • Patent number: 11665964
    Abstract: A method for manufacturing a thermoelectric conversion element includes forming a thermoelectric film containing a thermoelectric material on a surface of a substrate, pressing the thermoelectric film with a mold to form a pattern of the thermoelectric film on the surface of the substrate, and heating the pattern of the thermoelectric film formed on the surface of the substrate to generate the thermoelectric conversion element.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: May 30, 2023
    Assignee: KELK Ltd.
    Inventors: Tetsushi Tanaka, Katsushi Fukuda, Mikio Koyano, Tatsuya Shimoda
  • Patent number: 11647672
    Abstract: A thermoelectric power generation module mounting substrate includes: a printed substrate having a heat transfer through-hole penetrating a first surface and a second surface opposite to the first surface, and being in contact with a housing on the second surface; and a thermoelectric power generation module mounted on the printed substrate in contact with the first surface.
    Type: Grant
    Filed: December 10, 2021
    Date of Patent: May 9, 2023
    Assignee: KELK Ltd.
    Inventor: Tomonori Murata
  • Patent number: 11624732
    Abstract: A detection device includes a vibration sensor configured to detect vibration of a machine, a calculation unit configured to perform FFT analysis on detection data of the vibration sensor, divide a specific frequency range into a plurality of frequency ranges, and calculate a partial overall value for each of the plurality of frequency ranges, and a wireless communication device configured to transmit the partial overall value.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: April 11, 2023
    Assignee: KELK Ltd.
    Inventor: Tomonori Murata
  • Patent number: 11605771
    Abstract: A thermoelectric generator includes: a heat-receiving plate having a heat-receiving surface configured to receive radiant heat; a thermoelectric generation module provided to a surface of the heat-receiving plate opposite from the heat-receiving surface and having an area smaller than an area of the heat-receiving plate; a cooling plate provided to a surface of the thermoelectric generation module opposite from a surface where the heat-receiving plate is provided; and a temperature equalizer provided to the heat-receiving plate and configured to equalize a temperature of the heat-receiving surface.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: March 14, 2023
    Assignee: KELK Ltd.
    Inventors: Kazuya Makino, Hirokuni Hachiuma
  • Patent number: 11495722
    Abstract: A thermoelectric generator includes a heat-receiving plate having a heat-receiving surface for receiving flame and high-temperature combustion gas, a thermoelectric generation module disposed at a surface of the heat-receiving plate opposite the heat-receiving surface, a cooling plate disposed at a side of the thermoelectric generation module opposite the heat-receiving plate, a cover disposed to cover the heat-receiving surface and including a heat inlet for introducing the flame and the high-temperature combustion gas and a heat outlet for discharging the temperature-reduced combustion gas introduced through the heat inlet, a heat diffuser provided on the heat-receiving surface at a position corresponding to the heat inlet and configured to diffuse the combustion gas introduced through the heat inlet along the heat-receiving surface, and a heat absorber provided on the heat-receiving surface to surround the heat diffuser and configured to absorb the heat of the high-temperature combustion gas diffused by th
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: November 8, 2022
    Assignee: KELK Ltd.
    Inventor: Daisuke Goto