Patents by Inventor Hironobu Kubota

Hironobu Kubota 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: 20210101210
    Abstract: An electronic component includes a body made of an insulator, a coating film covering the body, a conductor located in the body, and outer electrodes each of which is connected to the conductor. The insulator contains a magnetic metal powder. The coating film is composed of resin and cations of a metal which is a cationic element contained in the insulator and which has a standard electrode potential E0 of less than about 0 V.
    Type: Application
    Filed: November 23, 2020
    Publication date: April 8, 2021
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Mitsunori INOUE, Hironobu KUBOTA
  • Patent number: 10875095
    Abstract: An electronic component includes a body made of an insulator, a coating film covering the body, a conductor located in the body, and outer electrodes each of which is connected to the conductor. The insulator contains a magnetic metal powder. The coating film is composed of resin and cations of a metal which is a cationic element contained in the insulator and which has a standard electrode potential E0 of less than about 0 V.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: December 29, 2020
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Mitsunori Inoue, Hironobu Kubota
  • Patent number: 10650955
    Abstract: An electronic component includes a main body composed of an insulator, a coating film covering the main body, a circuit element located inside the main body, and outer electrodes. The insulator contains a metal magnetic powder. The coating film is composed of a resin and a cationic element contained in the insulator.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: May 12, 2020
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hironobu Kubota, Mitsunori Inoue, Tomohiko Mori, Gota Shinohara, Kenji Nishiyama
  • Patent number: 10553343
    Abstract: An electronic component includes a main body composed of an insulator, a coating film covering the main body, a circuit element located inside the main body, and outer electrodes. The insulator contains a metal magnetic powder. The coating film is composed of a resin and a cationic element contained in the insulator.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: February 4, 2020
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hironobu Kubota, Mitsunori Inoue, Tomohiko Mori, Gota Shinohara, Kenji Nishiyama
  • Publication number: 20190371507
    Abstract: An electronic component includes a main body made from a metal magnetic powder and an insulating resin, a coating film covering the surface of the main body, a conductor disposed inside the main body, inorganic particles adhering to the surface of the coating film, and outer electrodes which are electrically connected to the conductor and which cover portions of the surface of the coating film while inorganic particles adhere to the portions, wherein the coating film contains a resin and metal cations.
    Type: Application
    Filed: August 13, 2019
    Publication date: December 5, 2019
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Hironobu KUBOTA, Mitsunori INOUE
  • Patent number: 10475567
    Abstract: An electronic component includes a main body composed of an insulator, a coating film covering the main body, a circuit element located inside the main body, and outer electrodes. The insulator contains a metal magnetic powder. The coating film is composed of a resin and a cationic element contained in the insulator.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: November 12, 2019
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hironobu Kubota, Mitsunori Inoue, Tomohiko Mori, Gota Shinohara, Kenji Nishiyama
  • Publication number: 20190333678
    Abstract: Magnetic particles, each including a core made of a magnetic material, and an insulating coating film which covers a surface of the core made of a magnetic material. The insulating coating film is formed of a sol-gel reaction product of a mixture containing a metal alkoxide and an organic phosphoric acid or a salt thereof.
    Type: Application
    Filed: July 8, 2019
    Publication date: October 31, 2019
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Hironobu KUBOTA, Yuya ISHIDA
  • Patent number: 10431365
    Abstract: An electronic component includes a main body made from a metal magnetic powder and an insulating resin, a coating film covering the surface of the main body, a conductor disposed inside the main body, inorganic particles adhering to the surface of the coating film, and outer electrodes which are electrically connected to the conductor and which cover portions of the surface of the coating film while inorganic particles adhere to the portions, wherein the coating film contains a resin and metal cations.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: October 1, 2019
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hironobu Kubota, Mitsunori Inoue
  • Publication number: 20190180909
    Abstract: A coil component including an element assembly and a coil conductor embedded in the element assembly. The element assembly includes a first magnetic layer and a second magnetic layer that constitute a first principal surface and a second principal surface, respectively, where the first principal surface and the second principal surface are opposite to each other in the element assembly. The first magnetic layer has a higher relative magnetic permeability than the second magnetic layer. At least part of a winding portion of the coil conductor is located in the first magnetic layer. The first magnetic layer contains metal magnetic particles and a resin, and the second magnetic layer contains metal magnetic particles, a resin, and zinc oxide particles. The metal magnetic particles and the zinc oxide particles are dispersed in the resin.
    Type: Application
    Filed: November 5, 2018
    Publication date: June 13, 2019
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Gota SHINOHARA, Noriko SHIMIZU, Keiichi ISHIDA, Hironobu KUBOTA, Mari YONEMURA, Takao KAWACHI
  • Publication number: 20180322999
    Abstract: An electronic component includes a main body composed of an insulator, a coating film covering the main body, a circuit element located inside the main body, and outer electrodes. The insulator contains a metal magnetic powder. The coating film is composed of a resin and a cationic element contained in the insulator.
    Type: Application
    Filed: July 10, 2018
    Publication date: November 8, 2018
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Hironobu KUBOTA, Mitsunori INOUE, Tomohiko MORI, Gota SHINOHARA, Kenji NISHIYAMA
  • Publication number: 20180323000
    Abstract: An electronic component includes a main body composed of an insulator, a coating film covering the main body, a circuit element located inside the main body, and outer electrodes. The insulator contains a metal magnetic powder. The coating film is composed of a resin and a cationic element contained in the insulator.
    Type: Application
    Filed: July 10, 2018
    Publication date: November 8, 2018
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Hironobu KUBOTA, Mitsunori INOUE, Tomohiko MORI, Gota SHINOHARA, Kenji NISHIYAMA
  • Publication number: 20170084376
    Abstract: An electronic component includes a main body composed of an insulator, a coating film covering the main body, a circuit element located inside the main body, and outer electrodes. The insulator contains a metal magnetic powder. The coating film is composed of a resin and a cationic element contained in the insulator.
    Type: Application
    Filed: December 1, 2016
    Publication date: March 23, 2017
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Hironobu KUBOTA, Mitsunori INOUE, Tomohiko MORI, Gota SHINOHARA, Kenji NISHIYAMA
  • Publication number: 20160276089
    Abstract: An electronic component includes a body made of an insulator, a coating film covering the body, a conductor located in the body, and outer electrodes each of which is connected to the conductor. The insulator contains a magnetic metal powder. The coating film is composed of resin and cations of a metal which is a cationic element contained in the insulator and which has a standard electrode potential E0 of less than about 0 V.
    Type: Application
    Filed: March 15, 2016
    Publication date: September 22, 2016
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Mitsunori INOUE, Hironobu KUBOTA
  • Publication number: 20160260535
    Abstract: An electronic component includes a main body made from a metal magnetic powder and an insulating resin, a coating film covering the surface of the main body, a conductor disposed inside the main body, inorganic particles adhering to the surface of the coating film, and outer electrodes which are electrically connected to the conductor and which cover portions of the surface of the coating film while inorganic particles adhere to the portions, wherein the coating film contains a resin and metal cations.
    Type: Application
    Filed: February 24, 2016
    Publication date: September 8, 2016
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Hironobu KUBOTA, Mitsunori INOUE
  • Patent number: 6241066
    Abstract: During a shifting operation to slide a shift gear of an auxiliary change speed device, clutches of a backward and forward drive switching device acting also as a propelling clutch and of a main change speed device are automatically disengaged to place these devices in neutral state. After the shift gear is switched to a high-speed position or low-speed position, the clutches of the main change speed device are automatically engaged to return the main change speed device to a transmitting state. After the main change speed device returns to the transmitting state, the clutches of the backward and forward drive switching device are automatically engaged to return the backward and forward drive switching device to a transmitting state.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: June 5, 2001
    Assignee: Kubota Corporation
    Inventors: Akihiro Asada, Hironobu Kubota
  • Patent number: 5651289
    Abstract: A drive transmission system for a working vehicle for transmitting power of an engine to running devices through a main clutch, a main change speed device and an auxiliary change speed device is disclosed. The main change speed device includes a first group of hydraulic clutches and a group of control valves for operating these clutches. The auxiliary change speed device includes a second group of hydraulic clutches and control valves for operating these clutches. Pressure oil is supplied to selected clutches of the first and second groups of hydraulic clutches to obtain the desired speed.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: July 29, 1997
    Assignee: Kubota Corporation
    Inventors: Akihiro Asada, Akio Inamori, Kazushige Komori, Shigeo Sakamoto, Hironobu Kubota
  • Patent number: 5289680
    Abstract: A hydraulic circuit for a working vehicle comprising a first pump, a second pump, a first actuator, a second actuator, and a selector valve having a plurality of control positions. The selector valve is switchable between a first position for connecting the first pump to the first actuator and the second pump to the second actuator, and a second position for connecting the first pump and the second pump to the second actuator. This circuit includes a first relief valve disposed between the selector valve and the first pump, and a second relief valve disposed between the selector valve and the second pump. The first relief valve is set to a higher relief pressure than the second relief valve.
    Type: Grant
    Filed: March 8, 1991
    Date of Patent: March 1, 1994
    Assignee: Kubota Corporation
    Inventors: Mitsuhiko Obe, Hironobu Kubota
  • Patent number: 4009747
    Abstract: A method of and device for forming vacuum sealed molds, in which suction is applied to a charging material charged into a flask to remove the charging material adjacent the top of a sprue or a communicating passage thereby forming a cup-shaped pouring basin for the sprue or a funnel-shaped concave for the passage in a mold, thereafter a shielding film is applied over the upper surface of the flask, and a suction is applied to the charging material within the flask.
    Type: Grant
    Filed: March 12, 1975
    Date of Patent: March 1, 1977
    Assignee: Sintokogio, Ltd.
    Inventors: Takashi Miura, Hideto Terada, Takao Inoue, Hironobu Kubota