Patents by Inventor Junji WAKITA

Junji WAKITA 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: 10790461
    Abstract: A field-effect transistor includes: a substrate; a source electrode; a drain electrode; a gate electrode; a semiconductor layer in contact with the source electrode and with the drain electrode; and a gate insulating layer insulating between the semiconductor layer and the gate electrode. The gate insulating layer comprising at least a polysiloxane having a structural unit represented by a general formula (1): in the general formula (1), R1 represents a hydrogen atom, an alkyl group, a cycloalkyl group, a heterocyclic group, an aryl group, a heteroaryl group, or an alkenyl group; R2 represents a hydrogen atom, an alkyl group, a cycloalkyl group, or a silyl group; m represents 0 or 1; A1 represents an organic group including at least two groups selected from a carboxy group, a sulfo group, a thiol group, a phenolic hydroxy group, or a derivative of these groups.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: September 29, 2020
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Daisuke Sakii, Seiichiro Murase, Junji Wakita
  • Publication number: 20200293849
    Abstract: A package in an aspect of the present invention includes: a package body having a receiving cavity for receiving a cavity item; a sheet for sealing the receiving cavity; a conducting wire formed on the sheet so as to pass above the sealed opening portion of the receiving cavity; and a wireless communication device formed on the sheet so as to be connected to the conducting wire. The wireless communication device transmits a signal including information which differs between before and after the conducting wire together with the sheet is cut as a result of opening the receiving cavity. The information transmitted from the wireless communication device is read by a reader. The package and the reader are used for a cavity item management system.
    Type: Application
    Filed: September 27, 2018
    Publication date: September 17, 2020
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Junji WAKITA, Seiichiro MURASE
  • Publication number: 20200261278
    Abstract: The present invention provides a wireless communication device including: a circuit unit; and an antenna which is connected to the circuit unit and which transmits and receives signals to and from a transceiver in a non-contact manner. The wireless communication device transmits different signals to the transceiver, depending on the presence or absence of contact between at least a part of the circuit unit and moisture.
    Type: Application
    Filed: August 29, 2018
    Publication date: August 20, 2020
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Shota KAWAI, Yoshihiro KARIYA, Junji WAKITA, Seiichiro MURASE
  • Publication number: 20200203292
    Abstract: The purpose of the present invention is to provide: a conductive film; a method for producing a conductive film, which enables the achievement of a conductive film or conductive pattern having good electrical conductivity by means of light irradiation of a short period of time without being accompanied by a long-time heat treatment at high temperatures; a method for producing a field effect transistor, which uses this method for producing a conductive film; and a method for producing a wireless communication device. A method for producing a conductive film according to the present invention for the achievement of the above-described purpose comprises: a step for forming a coating film by applying a conductive paste, which contains conductive particles that have surfaces covered by elemental carbon, onto a substrate; and a step for irradiating the coating film with flashing light.
    Type: Application
    Filed: June 22, 2018
    Publication date: June 25, 2020
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Shota KAWAI, Junji WAKITA, Seiichiro MURASE
  • Patent number: 10636866
    Abstract: Provided is a capacitor that has good bonding between the dielectric layer and the conductive layer, has a characteristic of low ESR, and keeps leak current suppressed. The capacitor contains a dielectric layer and a conductive film and is characterized in that the dielectric layer contains an organic compound and a metal compound and that the conductive film contains a conductive material and an organic compound.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: April 28, 2020
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Hiroji Shimizu, Junji Wakita, Seiichiro Murase
  • Patent number: 10611868
    Abstract: An object of the present invention is to provide a ferroelectric memory element which has a low driving voltage and which can be formed by coating. The present invention provides a ferroelectric memory element including at least: a first conductive film; a second conductive film; and a ferroelectric layer provided between the first conductive film and the second conductive film; wherein the ferroelectric layer contains ferroelectric particles and an organic component, and wherein the ferroelectric particles have an average particle size of from 30 to 500 nm.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: April 7, 2020
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Junji Wakita, Hiroji Shimizu, Shota Kawai, Seiichiro Murase
  • Publication number: 20190382366
    Abstract: A compound represented by Formula (1): The compound can be used as insecticides.
    Type: Application
    Filed: August 27, 2019
    Publication date: December 19, 2019
    Inventors: Kei Yoshida, Takeo Wakita, Hiroyuki Katsuta, Akiyoshi Kai, Yutaka Chiba, Kiyoshi Takahashi, Hiroko Kato, Nobuyuki Kawahara, Michikazu Nomura, Hidenori Daido, Junji Maki, Shinichi Banba
  • Publication number: 20190378998
    Abstract: A field-effect transistor includes: a substrate; a source electrode; a drain electrode; a gate electrode; a semiconductor layer in contact with the source electrode and with the drain electrode; and a gate insulating layer insulating between the semiconductor layer and the gate electrode. The gate insulating layer comprising at least a polysiloxane having a structural unit represented by a general formula (1): in the general formula (1), R1 represents a hydrogen atom, an alkyl group, a cycloalkyl group, a heterocyclic group, an aryl group, a heteroaryl group, or an alkenyl group; R2 represents a hydrogen atom, an alkyl group, a cycloalkyl group, or a silyl group; m represents 0 or 1; A1 represents an organic group including at least two groups selected from a carboxy group, a sulfo group, a thiol group, a phenolic hydroxy group, or a derivative of these groups.
    Type: Application
    Filed: November 16, 2017
    Publication date: December 12, 2019
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Daisuke SAKII, Seiichiro MURASE, Junji WAKITA
  • Patent number: 10435385
    Abstract: A compound represented by Formula (1): The compound can be used as insecticides.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: October 8, 2019
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Kei Yoshida, Takeo Wakita, Hiroyuki Katsuta, Akiyoshi Kai, Yutaka Chiba, Kiyoshi Takahashi, Hiroko Kato, Nobuyuki Kawahara, Michikazu Nomura, Hidenori Daido, Junji Maki, Shinichi Banba
  • Patent number: 10431753
    Abstract: The present invention is a substrate for a display, the substrate having a film B including a polysiloxane resin on at least one surface of a film A including a polyimide resin, wherein the film B contains inorganic oxide particles therein, and the present invention has an object to provide a substrate for a display: being able to be applied to a color filter, an organic EL element, or the like without the need to carry out any complex operations; allowing high-definition displays to be manufactured; and being provided with a low CTE, a low birefringence, and flexibility.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: October 1, 2019
    Assignee: Toray Industries, Inc.
    Inventors: Akinori Saeki, Junji Wakita, Harushi Nonaka, Yoshinori Matoba, Masahito Nishiyama
  • Publication number: 20180362763
    Abstract: A resin composition includes an (a) resin having a structure represented by Chemical Formula (1); and a (b) solvent. The resin composition also includes an amount of a compound represented by Chemical Formula (3) which is 0.1 ppm by mass or more and 40 ppm by mass or less.
    Type: Application
    Filed: December 8, 2016
    Publication date: December 20, 2018
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Daichi Miyazaki, Junji Wakita, Takashi Tokuda, Yasuko Tachibana, Koji Ueoka, Tomoki Ashibe
  • Publication number: 20180327530
    Abstract: An object of the present invention is to provide a ferroelectric memory element which has a low driving voltage and which can be formed by coating. The present invention provides a ferroelectric memory element including at least: a first conductive film; a second conductive film; and a ferroelectric layer provided between the first conductive film and the second conductive film; wherein the ferroelectric layer contains ferroelectric particles and an organic component, and wherein the ferroelectric particles have an average particle size of from 30 to 500 nm.
    Type: Application
    Filed: November 21, 2016
    Publication date: November 15, 2018
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Junji WAKITA, Hiroji SHIMIZU, Shota KAWAI, Seiichiro MURASE
  • Publication number: 20180277619
    Abstract: Provided is a capacitor that has good bonding between the dielectric layer and the conductive layer, has a characteristic of low ESR, and keeps leak current suppressed. The capacitor contains a dielectric layer and a conductive film and is characterized in that the dielectric layer contains an organic compound and a metal compound and that the conductive film contains a conductive material and an organic compound.
    Type: Application
    Filed: October 14, 2016
    Publication date: September 27, 2018
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Hiroji SHIMIZU, Junji WAKITA, Seiichiro MURASE
  • Publication number: 20180210337
    Abstract: An object of the present invention is to provide a method for accurately forming an antenna substrate as well as an antenna substrate with wiring line and electrode by a coating method. One aspect of the present invention provides a method for producing an antenna substrate with wiring line and electrode including the steps of: (1) forming a coating film using a photosensitive paste containing a conductive material and a photosensitive organic component on an insulating substrate; (2-A) processing the coating film into a pattern corresponding to an antenna by photolithography; (2-B) processing the coating film into a pattern corresponding to a wiring line; (2-C) processing the coating film into a pattern corresponding to an electrode; (3-A) curing the pattern corresponding to an antenna into an antenna; (3-B) curing the pattern corresponding to a wiring line into a wiring line; and (3-C) curing the pattern corresponding to an electrode into an electrode.
    Type: Application
    Filed: August 10, 2016
    Publication date: July 26, 2018
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Junji WAKITA, Hiroji SHIMIZU, Seiichiro MURASE
  • Patent number: 9828469
    Abstract: The present invention provides a polyimide precursor that serves to produce a cured film that has high light permeability in combination with low birefringence and low linear thermal expansion. The polyimide precursor includes at least an acid dianhydride residue as represented by Formula (1), a diamine residue as represented by Formula (2), and one or more diamine residues as represented by Formula (3), the acid dianhydride residue as represented by Formula (1) accounting for 50 mol % or more of the total quantity of acid dianhydride residues in the polyimide precursor, the diamine residue as represented by Formula (2) accounting for 50 mol % or more of the total quantity of diamine residues in the polyimide precursor, and the diamine residue as represented by Formula (3) accounting for 15 mol % or less of the total quantity of diamine residues in the polyimide precursor.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: November 28, 2017
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Junji Wakita, Yukari Arimoto, Masao Tomikawa
  • Publication number: 20170309844
    Abstract: The present invention is a substrate for a display, the substrate having a film B including a polysiloxane resin on at least one surface of a film A including a polyimide resin, wherein the film B contains inorganic oxide particles therein, and the present invention has an object to provide a substrate for a display: being able to be applied to a color filter, an organic EL element, or the like without the need to carry out any complex operations; allowing high-definition displays to be manufactured; and being provided with a low CTE, a low birefringence, and flexibility.
    Type: Application
    Filed: September 25, 2015
    Publication date: October 26, 2017
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Akinori Saeki, Junji Wakita, Harushi Nonaka, Yoshinori Matoba, Masahito Nishiyama
  • Patent number: 9493614
    Abstract: The present invention is based on a polyimide precursor having unit structures represented by general formula (1) and unit structures represented by general formula (2), provides a polyimide precursor for which film whitening, cracking and bubbling do not occur regardless of film baking conditions, and provides a flexible TFT array, a flexible color filter, and a flexible substrate with a gas barrier layer using the polyimide precursor, and a flexible display device, etc. using same. (In general formulas (1) and (2), X1-X4 each independently represents a hydrogen atom, C1 to C10 monovalent organic group or C1 to C10 monovalent alkylsilyl group. R1 is represented by general formula (3) and R2 is represented by general formula (4).) (In general formula (4), R3 and R4 each independently represents a C1 to C10 monovalent organic group.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: November 15, 2016
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Junji Wakita, Yukari Jo, Masao Tomikawa
  • Publication number: 20160222165
    Abstract: The present invention provides a polyimide precursor that serves to produce a cured film that has high light permeability in combination with low birefringence and low linear thermal expansion. The polyimide precursor includes at least an acid dianhydride residue as represented by Formula (1), a diamine residue as represented by Formula (2), and one or more diamine residues as represented by Formula (3), the acid dianhydride residue as represented by Formula (1) accounting for 50 mol % or more of the total quantity of acid dianhydride residues in the polyimide precursor, the diamine residue as represented by Formula (2) accounting for 50 mol % or more of the total quantity of diamine residues in the polyimide precursor, and the diamine residue as represented by Formula (3) accounting for 15 mol % or less of the total quantity of diamine residues in the polyimide precursor.
    Type: Application
    Filed: September 18, 2014
    Publication date: August 4, 2016
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Junji Wakita, Yukari Arimoto, Masao Tomikawa
  • Publication number: 20160002407
    Abstract: The present invention is based on a polyimide precursor having unit structures represented by general formula (1) and unit structures represented by general formula (2), provides a polyimide precursor for which film whitening, cracking and bubbling do not occur regardless of film baking conditions, and provides a flexible TFT array, a flexible color filter, and a flexible substrate with a gas barrier layer using the polyimide precursor, and a flexible display device, etc. using same. (In general formulas (1) and (2), X1-X4 each independently represents a hydrogen atom, C1 to C10 monovalent organic group or C1 to C10 monovalent alkylsilyl group. R1 is represented by general formula (3) and R2 is represented by general formula (4).) (In general formula (4), R3 and R4 each independently represents a C1 to C10 monovalent organic group.
    Type: Application
    Filed: December 26, 2013
    Publication date: January 7, 2016
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Junji WAKITA, Yukari JO, Masao TOMIKAWA