Patents by Inventor Takeshi Imura

Takeshi Imura 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: 11923550
    Abstract: The preset disclosure provides a catalyst layer that has a small contact resistance with a gas diffusion layer and excellent gas diffusion properties. The catalyst layer for a fuel cell has a uniform thickness and includes fibrous conductive members and catalyst particles. The fibrous conductive members are inclined relative to a surface direction of the catalyst layer, and a lengthwise direction of the fibrous conductive members, on average, matches a first direction.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: March 5, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takeshi Minamiura, Hitoshi Ishimoto, Shinichiro Imura, Kazuya Yamasaki, Yukihiro Shimasaki
  • Publication number: 20150371769
    Abstract: A stationary induction device including a tank, a core which is housed in the tank, a winding which is housed in the tank and wound around the core, a plurality of metal magnets which are fixed on an inner wall of the tank and configured to form a magnetic shield for shielding a leakage flux generated from the winding, and at least one retaining plate which is joined to the inner wall of the tank and the plurality of metal magnets so as to fix the plurality of metal magnets on the inner wall of the tank. Among the plurality of metal magnets, the metal magnets adjacent to each other are connected to each other by one retaining plate only.
    Type: Application
    Filed: April 30, 2014
    Publication date: December 24, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takeshi IMURA, Tetsuya MATSUDA
  • Patent number: 9024714
    Abstract: A static apparatus includes an iron core which includes a plurality of magnetic plates stacked in one direction and in which a shaft portion having a main surface and a side surface is formed, and a coil wound around the shaft portion. Slits extending in an axial direction of the shaft portion are formed in at least a surface layer magnetic plate constituting the main surface, of the plurality of magnetic plates. Some of the slits are formed in the main surface, at an end portion close to the side surface, at a predetermined formation density. The formation density of the slits is highest at the predetermined formation density, and is reduced as at least one of a minimum distance from the side surface within the main surface and a distance from the main surface on a side close to the slits in the stacking direction is increased.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: May 5, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tetsuya Matsuda, Ryuichi Nishiura, Hiroyuki Akita, Takeshi Imura, Yasuo Fujiwara, Yoshinori Shimizu, Kazuaki Aono
  • Patent number: 8872614
    Abstract: A transformer includes a leg iron core including a plurality of magnetic sheets stacked in one direction (Z axis direction), and a coil wound around the leg iron core. A slit is formed in at least a magnetic sheet which faces an inner peripheral surface of the coil in a stacking direction of the plurality of magnetic sheets, of the plurality of magnetic sheets. Since eddy current is divided by the slit, eddy current density can be reduced. By reducing the eddy current density, loss density in an iron core can be reduced. By reducing the loss density in the iron core, loss in the transformer can be reduced.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: October 28, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Ryuichi Nishiura, Yasuo Fujiwara, Yoshinori Shimizu, Tetsuya Matsuda, Takeshi Imura, Kazuaki Aono, Hiroyuki Akita
  • Publication number: 20120299686
    Abstract: A static apparatus includes an iron core which includes a plurality of magnetic plates stacked in one direction and in which a shaft portion having a main surface and a side surface is formed, and a coil wound around the shaft portion. Slits extending in an axial direction of the shaft portion are formed in at least a surface layer magnetic plate constituting the main surface, of the plurality of magnetic plates. Some of the slits are formed in the main surface, at an end portion close to the side surface, at a predetermined formation density. The formation density of the slits is highest at the predetermined formation density, and is reduced as at least one of a minimum distance from the side surface within the main surface and a distance from the main surface on a side close to the slits in the stacking direction is increased.
    Type: Application
    Filed: October 22, 2010
    Publication date: November 29, 2012
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tetsuya Matsuda, Ryuichi Nishiura, Hiroyuki Akita, Takeshi Imura, Yasuo Fujiwara, Yoshinori Shimizu, Kazuaki Aono
  • Publication number: 20120146760
    Abstract: A transformer includes a leg iron core including a plurality of magnetic sheets stacked in one direction (Z axis direction), and a coil wound around the leg iron core. A slit is formed in at least a magnetic sheet which faces an inner peripheral surface of the coil in a stacking direction of the plurality of magnetic sheets, of the plurality of magnetic sheets. Since eddy current is divided by the slit, eddy current density can be reduced. By reducing the eddy current density, loss density in an iron core can be reduced. By reducing the loss density in the iron core, loss in the transformer can be reduced.
    Type: Application
    Filed: October 19, 2010
    Publication date: June 14, 2012
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Ryuichi Nishiura, Yasuo Fujiwara, Yoshinori Shimizu, Telsuya Matsuda, Takeshi Imura, Kazuaki Aono, Hiroyuki Akita
  • Patent number: 5135690
    Abstract: A process for producing a cylindrical reinforcing fibrous molding by sealing openings at opposite ends of a porous cylindrical disintegratable mold, immersing the mold into an aqueous solution of a molding material containing reinforcing fibers and an inorganic binder, and depositing the molding material onto the outer peripheral surface of the mold by applying suction within the mold to form a molding blank; pressing the molding blank against the mold to adjust the shape of the molding blank; disintegrating the mold to remove it from the blank; and heating the molding blank to partially bond the reinforcing fibers with the inorganic binder.
    Type: Grant
    Filed: January 22, 1987
    Date of Patent: August 4, 1992
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Takeshi Imura, Masaki Sakakibara, Takahiro Suenaga, Shigeo Kaiho, Kanji Murata, Hitoshi Karasawa, Kazuya Sakamoto, Masahiro Inoue, Masanobu Ishikawa, Takashige Hara
  • Patent number: 4976305
    Abstract: The temperature of a casting die is controlled in a low-pressure casting process for pressurizing the surface of molten metal stored in a closed container to fill the molten metal in a die cavity defined in the casting die. The temperature of the casting die is detected by a temperature sensor, and compared with a preset reference die temperature range. The amount of cooling water to be supplied to the casting die is controlled based on the result of the comparison. When the detected temperature of the casting die falls in the preset reference die temperature range, the molten metal starts to be filled in the die cavity.
    Type: Grant
    Filed: December 1, 1988
    Date of Patent: December 11, 1990
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Kouji Tanaka, Syugo Kondo, Takeshi Imura, Katsuhiko Ando, Shigemitsu Nakabayashi
  • Patent number: 4875518
    Abstract: A light metal alloy such as an aluminum alloy is cast into a casting such as an automobile engine cylinder head under low pressure. A fluid pressure is applied to the surface of a light metal alloy stored in a closed container to introduce the light metal alloy from the closed container through a transfer tube and a sprue into a mold cavity defined in a mold assembly. The introduced molten metal alloy is brought into contact with molds of the mold assembly which have different thermal conductivities, respectively. The time in which the molten metal alloy is solidified is controlled by the molds of different thermal conductivities. The molds may forcibly be cooled by a cooling medium passing therethrough or cooling blocks mounted thereon.
    Type: Grant
    Filed: August 17, 1988
    Date of Patent: October 24, 1989
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Takeshi Imura, Katsuhiko Ando, Shigemitsu Nakabayashi, Maki Hirose
  • Patent number: 4629649
    Abstract: In an information recording medium comprising a substrate and a recording layer, the recording layer is formed from a germanium-tin material. Recording light may be conducted to the layer where amorphous-crystalline phase transition or crystal form change occurs.
    Type: Grant
    Filed: June 7, 1985
    Date of Patent: December 16, 1986
    Assignee: TDK Corporation
    Inventors: Yukio Osaka, Takeshi Imura, Toshio Nakashita
  • Patent number: 4588562
    Abstract: Crystals containing a molten liquid at the bottom of a purifying tower are cooled, so that three effects i.e., washing, sweating and recrystallization are improved while maintaining a heat balance within a tower to thereby obtain highly pure crystals.
    Type: Grant
    Filed: July 16, 1984
    Date of Patent: May 13, 1986
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Shigeru Saitoh, Masaaki Shimada, Takeshi Imura
  • Patent number: 4431562
    Abstract: A hydrogen-containing silicic substance comprising a four-coordinate Si lattice surrounded by a shell of SiH.sub.2 and/or SiH.sub.3 is disclosed. The substance contains unbound hydrogen in the Si lattice, making it possible to conveniently store hydrogen.
    Type: Grant
    Filed: May 12, 1982
    Date of Patent: February 14, 1984
    Assignee: Meidensha Electric Mfg., Co., Ltd.
    Inventors: Akio Hiraki, Takeshi Imura, Wako Kanmura