Patents by Inventor Kouji NAKATANI

Kouji NAKATANI 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).

  • Patent number: 11994482
    Abstract: The driving device includes a piezoelectric element, a power supply unit, a first resistor, a second resistor, a measuring unit and a control unit, wherein resistance values of the first resistor and the second resistor are smaller than an insulating resistance value of the piezoelectric element, the measuring unit measures, a voltage across the first resistor (voltage between a first terminal and a second terminal), in a state of supplying a predetermined voltage from the power supply unit, and the control unit calculates a resistance value of the piezoelectric element from a voltage value obtained by the measurement of the measuring unit, and determines, whether or not degradation has occurred in the piezoelectric element based on the calculated resistance value.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: May 28, 2024
    Assignee: FUJIKIN INCORPORATED
    Inventors: Atsushi Hidaka, Katsuyuki Sugita, Takatoshi Nakatani, Kouji Nishino, Nobukazu Ikeda
  • Publication number: 20240167577
    Abstract: A controller capable of improving the disappearance resistance of a synthetic resin coating of a diaphragm, and a vaporization supply device comprising the controller. The controller includes a body having an inflow passage and an outflow passage, a valve seat provided between the inflow passage and the outflow passage, a diaphragm capable of being seated on or separated from the valve seat, and an actuator for causing the diaphragm to be seated on and separated from the valve seat. The material of the valve seat is nickel-based, and the diaphragm is provided with a synthetic resin coating on a surface of a side to be brought into contact with the valve seat.
    Type: Application
    Filed: March 8, 2022
    Publication date: May 23, 2024
    Applicant: FUJIKIN INCORPORATED
    Inventors: Atsushi HIDAKA, Kazuteru TANAKA, Takatoshi NAKATANI, Kazuyuki MORISAKI, Masafumi KITANO, Kaoru HIRATA, Masaaki NAGASE, Kouji NISHINO, Nobukazu IKEDA
  • Publication number: 20240094078
    Abstract: The pressure sensor 10 comprises: a bottomed cylindrical sensor module 11 having inside a pressure receiving chamber C1 communicating with a flow path and including a diaphragm 11a in contact with the pressure receiving chamber; a pressure detecting element 12 for outputting a strain of the diaphragm 11a as a pressure; a base ring 14 fixed at an outer edge of an open-side end part 11c of the sensor module and disposed on an outer peripheral side of the sensor module 11; a hermetic member 13 fixed to the base ring 14 for forming a sealed vacuum chamber C2 opposite to the pressure receiving chamber C1 across the diaphragm 11a; a gasket 18 sandwiched between the base ring 14 and a body 5; and a pressing flange 19 for pressing the base ring 14 to the body 5 through the gasket 18.
    Type: Application
    Filed: November 2, 2021
    Publication date: March 21, 2024
    Applicants: FUJIKIN INCORPORATED, NIDEC COPAL ELECTRONICS CORPORATION
    Inventors: Atsushi HIDAKA, Takatoshi NAKATANI, Kaoru HIRATA, Kouji NISHINO, Nobukazu IKEDA, Masaki FUKASAWA
  • Patent number: 11933032
    Abstract: A chemical feeding device according to the present invention is for attaching to a water tank of a toilet having a tank main body that has an opening in an upper portion and a lid body that covers the opening of the tank main body, the chemical feeding device including a chemical container storing a chemical solution, a flexible tube through which the chemical solution in the chemical container is fed to the water tank, and an attachment member that supports the tube and is configured to be attachable to an edge of the upper opening of the tank main body. The attachment member includes a receiving part in which a recessed part for receiving the chemical solution that drips from the chemical container is formed. In a bottom portion of the recessed part is formed a discharge hole to which the tube is connected.
    Type: Grant
    Filed: September 29, 2022
    Date of Patent: March 19, 2024
    Assignee: Kobayashi Pharmaceutical Co., Ltd.
    Inventors: Kouji Nakatani, Kaoru Kasakawa
  • Publication number: 20240067777
    Abstract: The present invention provides a curable compound product that forms a cured product having excellent heat resistance and high insulating properties by performing heat treatment. The curable compound product of the present disclosure contains a compound represented by Formula (1) below, and a proportion of a group represented by Formula (r-1) below to the sum of the group represented by Formula (r-1) below and a group represented by Formula (r-2) below is 97% or greater. In Formula (1), R1 and R2 are identical or different, and each represent the group represented by Formula (r-1) the group represented by Formula (r-2) below: D1 and D2 are identical or different, and each represent a single bond or a linking group. L represents a divalent group having a repeating unit containing a structure represented by Formula (I) below and a structure represented by Formula (II) below.
    Type: Application
    Filed: December 25, 2020
    Publication date: February 29, 2024
    Applicant: DAICEL CORPORATION
    Inventors: Feng LIU, Yoshimichi OKANO, Kouji NAKATANI
  • Publication number: 20240026076
    Abstract: Provided is a curable compound product having excellent storage stability and moldability and by which a cured product having ultra-high heat resistance can be formed. The curable compound product according to the present disclosure has the following characteristics (a) to (g): (a) A number average molecular weight (calibrated with polystyrene standard) is from 1000 to 15000. (b) A proportion of a structure derived from an aromatic ring in a total amount of the curable compound product is 50 wt. % or greater. (c) Solvent solubility at 23° C. is 1 g/100 g or greater. (d) The glass transition temperature is from 80 to 230° C. (e) A viscosity (?0) of a 20 wt. % NMP solution obtained by subjecting the curable compound product to a reduced-pressure drying process and then dissolving the reduced-pressure-dried curable compound product in NMP, and a viscosity (?10) of the 20 wt. % NMP solution after being left to stand for 10 days in a desiccator maintained at 23° C. satisfy the Equation (E): ?10/?0<2(E).
    Type: Application
    Filed: October 5, 2021
    Publication date: January 25, 2024
    Applicant: DAICEL CORPORATION
    Inventors: Yoshimichi OKANO, Kouji NAKATANI
  • Publication number: 20230135682
    Abstract: Provided is a chemical solution supply device for which an installation location can be easily ensured, and which can stably supply a chemical solution. The chemical solution supply device includes: a container having an inner space in which a chemical solution to be supplied to a toilet bowl is accommodated; and a flexible tube that is in communication with the inner space and defines a passage for guiding the chemical solution to the inside of the toilet bowl, or to the inside of a water tank for supplying washing water to the inside of the toilet bowl.
    Type: Application
    Filed: February 10, 2021
    Publication date: May 4, 2023
    Inventors: Kaoru KASAKAWA, Kouji NAKATANI, Yuji NAKAYAMA, Dan LUO
  • Publication number: 20230119847
    Abstract: Provided is a chemical solution supply device for which an installation location can be easily ensured and which can stably supply a chemical solution. The chemical solution supply device includes a container having an inner space in which a chemical solution to be supplied to a toilet bowl is accommodated, and a guide member that is attached to an upper portion of a side wall portion defining a water flow space in which washing water for washing the toilet bowl flows, and has a guide surface in which one or a plurality of grooves for guiding the chemical solution sent out from the inner space to the water flow space are formed.
    Type: Application
    Filed: February 10, 2021
    Publication date: April 20, 2023
    Inventors: Kaoru KASAKAWA, Kouji NAKATANI, Yuji NAKAYAMA
  • Publication number: 20230097404
    Abstract: A chemical feeding device according to the present invention is for attaching to a water tank of a toilet having a tank main body that has an opening in an upper portion and a lid body that covers the opening of the tank main body, the chemical feeding device including a chemical container storing a chemical solution, a flexible tube through which the chemical solution in the chemical container is fed to the water tank, and an attachment member that supports the tube and is configured to be attachable to an edge of the upper opening of the tank main body. The attachment member includes a receiving part in which a recessed part for receiving the chemical solution that drips from the chemical container is formed. In a bottom portion of the recessed part is formed a discharge hole to which the tube is connected.
    Type: Application
    Filed: September 29, 2022
    Publication date: March 30, 2023
    Inventors: Kouji NAKATANI, Kaoru KASAKAWA
  • Publication number: 20230094893
    Abstract: A chemical feeding device according to the present invention is for attaching to a water tank of a toilet having a tank main body that has an opening is an upper portion and a lid body that covers the opening of the tank main body, the chemical feeding device including a chemical container storing a chemical solution, a flexible tube through which the chemical solution in the chemical container is fed to the water tank, and an attachment member that supports the tube and is configured to be attachable to an edge of the upper opening of the tank main body. The attachment member has a disposition part that is where the tube is disposed and that guides the tube into the water tank, and the disposition part is formed by at least one of a straight part and a curved part so as to not have a corner.
    Type: Application
    Filed: September 29, 2022
    Publication date: March 30, 2023
    Inventors: Kouji NAKATANI, Kaoru KASAKAWA
  • Patent number: 11021438
    Abstract: There is provided a curable compound having good solvent solubility and being capable of forming a cured material having super heat resistance. The curable compound according to the present invention is represented by the following formula (1).
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: June 1, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Fei Yang, Yoshimichi Okano, Kouji Nakatani, Feng Liu, Michiyo Nakai, Takayuki Yaegashi, Yusuke Okamoto, Tsukasa Yoshida
  • Publication number: 20200079726
    Abstract: There is provided a curable compound having good solvent solubility and being capable of forming a cured material having super heat resistance. The curable compound according to the present invention is represented by the following formula (1).
    Type: Application
    Filed: November 10, 2017
    Publication date: March 12, 2020
    Applicant: DAICEL CORPORATION
    Inventors: Fei YANG, Yoshimichi OKANO, Kouji NAKATANI, Feng LIU, Michiyo NAKAI, Takayuki YAEGASHI, Yusuke OKAMOTO, Tsukasa YOSHIDA
  • Publication number: 20190119489
    Abstract: Provided is a thermosetting compound that has satisfactory solvent solubility and can be rapidly cured by a heat treatment to form a cured product having extreme heat resistance. The thermosetting compound according to the present invention is represented by following Formula (1). In Formula (1), R1 and R2 each independently represent a thermosetting group; D1 and D2 are each, identically or differently, selected from a single bond and a linkage group; Ar1, Ar2, and Ar3 are each, identically or differently, selected from a divalent aromatic hydrocarbon group and a divalent group including two or more aromatic hydrocarbons bonded to each other via any one selected from a single bond, a divalent aliphatic hydrocarbon group, and a divalent alicyclic hydrocarbon group; and E represents, independently on each occurrence, an ester bond.
    Type: Application
    Filed: March 14, 2017
    Publication date: April 25, 2019
    Applicant: DAICEL CORPORATION
    Inventors: Kouji NAKATANI, Keizo INOUE