Patents by Inventor Eiji Kojima

Eiji Kojima 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: 20240103495
    Abstract: Feedback is provided, based on an actual drive amount of an actuator, to a command to a subsequent actuator. A control system includes a memory configured to store a program configured to generate a command related to a working position, a controller configured to execute the program, a first output unit configured to output a drive signal to a first drive portion, a second output unit configured to output another drive signal to a second drive portion, and a measurement unit configured to measure a drive amount of the first drive portion. The controller is configured to extract a low-frequency component included in the command, transmit the low-frequency component to the first output unit, correct a high-frequency component included in the command based on a signal indicating the drive amount of the first drive portion, and transmit the high-frequency component to the second drive portion.
    Type: Application
    Filed: September 21, 2021
    Publication date: March 28, 2024
    Applicant: OMRON Corporation
    Inventors: Eiji YAMAMOTO, Toshiyuki KOJIMA, Yuto YASUI
  • Publication number: 20240103414
    Abstract: A fixing unit or device that can be used in an image forming apparatus includes a first heater element that is formed of a material that increases in electrical resistance with increases in temperature. A controller of the fixing unit is configured to vary a duty ratio of electric power applied to the first heater element during a start-up operation in which the temperature of the first heater element is raised to a target operating temperature. By varying the duty ratio during the start-up operation, changes in the resistance of the first heater element with the heating can be compensated. For example, the duty ratio can be increased during the course of the start-up to achieve the target operating temperature faster.
    Type: Application
    Filed: December 1, 2023
    Publication date: March 28, 2024
    Inventors: Kiyotaka MURAKAMI, Kazuhiko KIKUCHI, Sasuke ENDO, Masaya TANAKA, Ryota SAEKI, Kousei MIYASHITA, Ryosuke KOJIMA, Yohei DOI, Yuki KAWASHIMA, Eiji SHINOHARA
  • Patent number: 11863141
    Abstract: There is provided audio equipment that enables power supply and signal connection to a rotary operation unit in a non-contact manner. The audio equipment includes: the rotary operation unit rotatably supported in relation to an equipment body; an operation detecting section provided for the rotary operation unit and in which an electric load changes in response to a pressing operation; a power supplying section provided for the equipment body and configured to supply power to the operation detecting section in a non-contact manner; and a monitoring section configured to monitor the power supplied by the power supplying section to detect the user's operation from a change in the power.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: January 2, 2024
    Assignee: ALPHATHETA CORPORATION
    Inventors: Jun Minokami, Naomi Amemiya, Eiji Kojima, Tadashi China
  • Patent number: 11527822
    Abstract: An electromagnetic wave transmissive cover includes: a base made of a dielectric material and having transmissiveness to electromagnetic waves; and a reflection hindering layer laminated on at least one of two surfaces of the base in a travel direction of the electromagnetic waves, made of a dielectric material, having transmissiveness to the electromagnetic waves, and hindering reflection of the electromagnetic waves. A wavelength of each electromagnetic wave in the reflection hindering layer is referred to as ?2 and 2?/?2 is set as a phase constant ?2. An amount of deviation between a phase of a reflected wave reflected on the front interface of the reflection hindering layer in the travel direction and a phase of a reflected wave reflected on the rear interface is referred to as a phase deviation amount ?. Thickness L2 of the reflection hindering layer is set to ?/?2.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: December 13, 2022
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Shinichi Doke, Eiji Kojima
  • Publication number: 20220137691
    Abstract: There is provided audio equipment that enables power supply and signal connection to a rotary operation unit in a non-contact manner. The audio equipment includes: the rotary operation unit rotatably supported in relation to an equipment body; an operation detecting section provided for the rotary operation unit and in which an electric load changes in response to a pressing operation; a power supplying section provided for the equipment body and configured to supply power to the operation detecting section in a non-contact manner; and a monitoring section configured to monitor the power supplied by the power supplying section to detect the user's operation from a change in the power.
    Type: Application
    Filed: March 1, 2019
    Publication date: May 5, 2022
    Inventors: Jun Minokami, Naomi Amemiya, Eiji Kojima, Tadashi China
  • Publication number: 20210408675
    Abstract: An electromagnetic wave transmissive cover includes: a base made of a dielectric material and having transmissiveness to electromagnetic waves; and a reflection hindering layer laminated on at least one of two surfaces of the base in a travel direction of the electromagnetic waves, made of a dielectric material, having transmissiveness to the electromagnetic waves, and hindering reflection of the electromagnetic waves. A wavelength of each electromagnetic wave in the reflection hindering laver is referred to as ?2 and 2?/?2 is set as a phase constant ?2. An amount of deviation between a phase of a reflected wave reflected on the front interface of the reflection hindering layer in the travel direction and a phase of a reflected wave reflected on the rear interface is referred to as a phase deviation amount ?. Thickness L2 of the reflection hindering layer is set to ?/?2.
    Type: Application
    Filed: June 22, 2021
    Publication date: December 30, 2021
    Inventors: Shinichi DOKE, Eiji KOJIMA
  • Publication number: 20210063530
    Abstract: A radio wave transmissive cover includes a conductive thin film. The conductive thin film includes unit thin film sections each including a hole region, a conduction region, and a patch region. Expressions 1 to 3 hold among a radius r of the patch region, a minimum dimension c of the conduction region, a width w of the hole region, a frequency frmin, frequencies f1, f2, and an index value Q. frmin = - 91 ? r - 7.2 ? c + 11.8 ? w + 113.5 ( Expression ? ? 1 ) Q = Kr ? f ? ? 1 - f ? ? 2 ? ( Expression ? ? 2 ) Q = 79 ? r - 2.4 ? c + 23 ? w - 38.6 ( Expression ? ? 3 ) The radius r, the minimum dimension c, and the width w are determined based on Expressions 1 to 3 such that the frequency frmin is in a range from 70 GHz to 80 GHz and that the index value Q is in a range from ?15 to ?5.
    Type: Application
    Filed: August 26, 2020
    Publication date: March 4, 2021
    Inventors: Shinichi DOKE, Eiji KOJIMA
  • Patent number: 10910733
    Abstract: It is aimed to enhance efficiency in connecting operation to a shielded cable and prevent the impairment of a shielding function. A terminal fitting (T) includes an inner conductor (6) including core crimping portions (9) to be crimped to a core (1), a dielectric (7) made of an insulating material, an outer conductor (5) including a body portion (12) configured to surround the dielectric (7), a braided wire crimping portion (22) crimpable to a braided wire and a coupling portion (15) configured to connect the body portion (12) and the braided wire crimping portion (22), parts of the coupling portion corresponding to the core crimping portions (9) being vertically opened, and a cover member (8) configured to close both openings (18, 19) of the coupling portion (15).
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: February 2, 2021
    Inventors: Kenji Miyamoto, Kazuaki Hamada, Eiji Kojima
  • Publication number: 20200295471
    Abstract: It is aimed to enhance efficiency in connecting operation to a shielded cable and prevent the impairment of a shielding function. A terminal fitting (T) includes an inner conductor (6) including core crimping portions (9) to be crimped to a core (1), a dielectric (7) made of an insulating material, an outer conductor (5) including a body portion (12) configured to surround the dielectric (7), a braided wire crimping portion (22) crimpable to a braided wire and a coupling portion (15) configured to connect the body portion (12) and the braided wire crimping portion (22), parts of the coupling portion corresponding to the core crimping portions (9) being vertically opened, and a cover member (8) configured to close both openings (18, 19) of the coupling portion (15).
    Type: Application
    Filed: March 2, 2017
    Publication date: September 17, 2020
    Inventors: Kenji Miyamoto, Kazuaki Hamada, Eiji Kojima
  • Publication number: 20190091938
    Abstract: Provided are a resin molded component, a method for producing the resin molded component, and a method for producing a welded resin-molded article which ensure appropriate welding at a portion to be welded, without causing insufficient strength. A resin molded component 1 includes a body portion 10 and a rib 11 integrally molded with each other, the rib 11 protruding from the body portion 10 and configured to be infrared welded to a predetermined resin component 2, the resin molded component 1 having a foamed layer 12 formed at least in the body portion 10. A leading end portion of the rib 11 of the resin molded component 1 has a thinned remainder 11b which has been thinned relative to a root portion of the rib. For example, the rib width of the thinned remainder 11b of the rib 11 is smaller than the rib width of the root portion.
    Type: Application
    Filed: July 18, 2018
    Publication date: March 28, 2019
    Inventors: Tatsuya MATSUI, Chiharu TOTANI, Eiji KOJIMA
  • Patent number: 9136046
    Abstract: Impurities are reduced in an oxide superconducting layer and in an interface between the oxide superconducting layer and an intermediate layer. A superconducting wire rod 1 has a structure including a substrate (10), an intermediate layer (20) formed on the substrate (10), a reaction suppressing layer (28) formed on the intermediate layer (20) and mainly containing polycrystalline SrLaFeO4+?1 or CaLaFeO4+?2, in which the ?1 and the ?2 each represent an amount of non-stoichiometric oxygen, and an oxide superconducting layer (30) formed on the reaction suppressing layer (28) and mainly containing an oxide superconductor.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: September 15, 2015
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Hiroyuki Fukushima, Yuko Hayase, Yoshikazu Okuno, Eiji Kojima
  • Patent number: 9070495
    Abstract: Impurities in an oxide superconducting layer or at a surface of the oxide superconducting layer at an intermediate layer side are reduced. A superconducting wire rod has a configuration that includes a metal substrate 10; an intermediate layer 20 formed on the metal substrate 10 and containing a rare-earth element that reacts with Ba; a reaction suppressing layer 28 formed on the intermediate layer 20 and mainly containing LaMnO3+?1, wherein ?1 represents an amount of non-stoichiometric oxygen; and an oxide superconducting layer 30 formed on the reaction suppressing layer 28 and mainly containing an oxide superconductor containing Ba.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: June 30, 2015
    Assignee: FUKUKAWA ELECTRIC CO., LTD.
    Inventors: Yoshikazu Okuno, Hiroyuki Fukushima, Eiji Kojima, Yuko Hayase
  • Patent number: 9064620
    Abstract: Adhesiveness between a metallic substrate and a metal oxide layer is made to increase. A superconducting thin film (1) includes a metallic substrate (10), a metallic layer (22) that is formed on a main surface of the metallic substrate (10) and includes a metal element capable of being passivated as a main component, a metal oxide layer (24) that is formed on the metallic layer (22) and includes the passivated metal element as a main component, and a superconducting layer (40) that is formed on the metal oxide layer (24) directly or through an intermediate layer and includes an oxide superconductor as a main component.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: June 23, 2015
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yuko Hayase, Yoshikazu Okuno, Hiroyuki Fukushima, Eiji Kojima, Hisaki Sakamoto
  • Patent number: 8980797
    Abstract: A method for manufacturing a base material 2 for a superconductive conductor which includes: a conductive bed layer forming process of forming a non-oriented bed layer 24 having conductivity on a substrate 10; and a biaxially oriented layer forming process of forming a biaxially oriented layer 26 on the bed layer 24.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: March 17, 2015
    Assignee: Furukawa Electric Co., Ltd.
    Inventors: Yoshikazu Okuno, Hiroyuki Fukushima, Yuko Hayase, Eiji Kojima
  • Patent number: 8927863
    Abstract: A terminal assembly includes a wire including a core made of metal and covered with a coating, a terminal including a wire connecting portion connected to an end portion of the wire, a sealing resin sealing the wire connecting portion, and a housing including a through hole with a front opening and a rear opening. The terminal is made of a different kind of metal from the core of the wire. The housing accommodates the terminal in the through hole. The wire connecting portion includes an exposed portion not covered with the sealing resin and unexposed portions covered with the sealing resin. The exposed portion is positioned between the unexposed portions in a front and rear direction, thereby protecting the wire connecting portion from electrolytic corrosion. The exposed portion is obtained after the sealing resin is worn by being rubbed against an inner wall of the through hole.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: January 6, 2015
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Naotaka Tanikawa, Hiroko Kato, Kazumasa Kobayashi, Eiji Kojima, Hiroshi Kobayashi
  • Publication number: 20130316908
    Abstract: Impurities are reduced in an oxide superconducting layer and in an interface between the oxide superconducting layer and an intermediate layer. A superconducting wire rod 1 has a structure including a substrate (10), an intermediate layer (20) formed on the substrate (10), a reaction suppressing layer (28) formed on the intermediate layer (20) and mainly containing polycrystalline SrLaFeO4+?1 or CaLaFeO4+?2, in which the ?1 and the ?2 each represent an amount of non-stoichiometric oxygen, and an oxide superconducting layer (30) formed on the reaction suppressing layer (28) and mainly containing an oxide superconductor.
    Type: Application
    Filed: February 14, 2012
    Publication date: November 28, 2013
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Hiroyuki Fukushima, Yuko Hayase, Yoshikazu Okuno, Eiji Kojima
  • Publication number: 20130190188
    Abstract: A method for manufacturing a base material 2 for a superconductive conductor which includes: a conductive bed layer forming process of forming a non-oriented bed layer 24 having conductivity on a substrate 10; and a biaxially oriented layer forming process of forming a biaxially oriented layer 26 on the bed layer 24.
    Type: Application
    Filed: August 24, 2012
    Publication date: July 25, 2013
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yoshikazu Okuno, Hiroyuki Fukushima, Yuko Hayase, Eiji Kojima
  • Publication number: 20130157866
    Abstract: Impurities in an oxide superconducting layer or at a surface of the oxide superconducting layer at an intermediate layer side are reduced. A superconducting wire rod has a configuration that includes a metal substrate 10; an intermediate layer 20 formed on the metal substrate 10 and containing a rare-earth element that reacts with Ba; a reaction suppressing layer 28 formed on the intermediate layer 20 and mainly containing LaMnO3+?1, wherein ?1 represents an amount of non-stoichiometric oxygen; and an oxide superconducting layer 30 formed on the reaction suppressing layer 28 and mainly containing an oxide superconductor containing Ba.
    Type: Application
    Filed: November 24, 2011
    Publication date: June 20, 2013
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yoshikazu Okuno, Hiroyuki Fukushima, Eiji Kojima, Yuko Hayase
  • Publication number: 20130137580
    Abstract: An effect of suppressing diffusion of metal elements from a substrate is high and orientation of a forcibly-oriented layer is improved. A base material (2) for a superconducting thin film includes: a substrate (10) including a metal element; a bed layer (22) formed on a surface of the substrate (10), the bed layer (22) including, as a main component, a non-orientated spinel compound that has a spinel type crystal structure and includes at least one transition metal element, Mg, and oxygen; and a forcibly-oriented layer (24) formed on a surface of the bed layer (22), the forcibly-oriented layer (24) having biaxial orientation and including, as a main component, a rock salt type compound that has a rock salt type crystal structure and includes Mg.
    Type: Application
    Filed: July 25, 2012
    Publication date: May 30, 2013
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yuko Hayase, Hiroyuki Fukushima, Yoshikazu Okuno, Eiji Kojima, Hisaki Sakamoto
  • Publication number: 20130130916
    Abstract: Adhesiveness between a metallic substrate and a metal oxide layer is made to increase. A superconducting thin film (1) includes a metallic substrate (10), a metallic layer (22) that is formed on a main surface of the metallic substrate (10) and includes a metal element capable of being passivated as a main component, a metal oxide layer (24) that is formed on the metallic layer (22) and includes the passivated metal element as a main component, and a superconducting layer (40) that is formed on the metal oxide layer (24) directly or through an intermediate layer and includes an oxide superconductor as a main component.
    Type: Application
    Filed: July 11, 2012
    Publication date: May 23, 2013
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yuko Hayase, Yoshikazu Okuno, Hiroyuki Fukushima, Eiji Kojima, Hisaki Sakamoto