Patents by Inventor Hiroyuki Aoyama

Hiroyuki Aoyama 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: 20210221992
    Abstract: A polytetrafluoroethylene having a breaking strength of 10.0 N or more and a thermal instability index (TII) of 20 or more. Also disclosed is a stretched body including the polytetrafluoroethylene.
    Type: Application
    Filed: July 23, 2019
    Publication date: July 22, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Taketo KATO, Yohei FUJIMOTO, Kenji ICHIKAWA, Hiroyuki SATO, Ryota USAMI, Yoshinori NANBA, Hirotoshi YOSHIDA, Kengo ITO, Chiaki OKUI, Masamichi SUKEGAWA, Taku YAMANAKA, Yosuke KISHIKAWA, Hirokazu AOYAMA, Satoru YONEDA, Sumi ISHIHARA, Masahiro HIGASHI, Akiyoshi YAMAUCHI, Shinnosuke NITTA, Marina NAKANO
  • Patent number: 11067032
    Abstract: A piston includes: a piston head; and a piston skirt connected to the piston head, wherein the piston skirt includes wall portions protruding outward from a surface of the piston skirt, the wall portions adjacent to each other in a circumferential direction of the piston skirt are inclined in directions opposite to each other with respect to a direction of movement of the piston in a bore for the piston, and define a tapered portion, and the tapered portions are spaced away from each other in the circumferential direction of the piston skirt.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: July 20, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takuzo Hirano, Ichiro Yamaguchi, Nobuhiko Soda, Hironori Aoyama, Kazuya Mikashima, Hiroyuki Ito
  • Patent number: 11060726
    Abstract: A compressor diffuser is disposed between cylindrical combustion chambers that are disposed around a rotational shaft to supply combustion gas to a turbine and a compressor that is rotatable about the rotational shaft to generate compressed air. The compressor diffuser includes one end connected to an outlet of the compressor; and another end connected to an air inlet of one of the combustion chambers. The one end defines an opening and has double arc portions curving about the rotational shaft, and the other end defines an opening shaped in conformance with the cylindrical shape of the one of the combustion chambers. The compressor diffuser is disposed continuously along an extending direction of the rotational shaft from the one end to the other end.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: July 13, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Kuniaki Aoyama, Hiroyuki Yamamoto
  • Publication number: 20210151850
    Abstract: According to the present invention, there is provided a power divider/combiner in which two transmission lines configured to connect between respective input/output terminals and an isolation resistor are at least partially adjusted to have suitable impedances during an even-mode operation and an odd-mode operation, for each of the even mode operation and the odd mode operation, to thereby ensure satisfactory reflection characteristics at the respective input/output terminals during the odd-mode operation, a satisfactory reflection characteristic at a common terminal during the even-mode operation, and satisfactory reflection characteristics at the respective input/output terminals during the even-mode operation over a wide band.
    Type: Application
    Filed: June 28, 2017
    Publication date: May 20, 2021
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hideharu YOSHIOKA, Hiroyuki AOYAMA, Naofumi YONEDA, Tetsuro ASHIDA
  • Patent number: 10813212
    Abstract: The multiband filter includes a printed circuit board, a first filter, a second filter having an outer dimension different from that of the first filter and passband frequencies higher than those of the first filter, an input terminal, an output terminal, a first inductor, a first capacitor, which are connected except the first capacitor by signal line conductor patterns to form a first transmission line, which connect the second filter, the input terminal, the output terminal, and the first capacitor to form a second transmission line, a part thereof in the first transmission line being arranged in an area on the printed circuit board, formed by the difference between the outer dimensions of the first and the second filters, to achieve desirable passbands and enough attenuation in a suppression band outside the passbands.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: October 20, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takeshi Yuasa, Takeshi Oshima, Hiroyuki Aoyama
  • Patent number: 10512153
    Abstract: A printed wiring board includes conductor layers, a core layer having an opening, and a build-up layer. A high frequency device placed within the opening is installed such that a mirror surface is thermally connected to a conductor layer for heat dissipation facing the opening from a lower surface side of the core layer, and terminals on the terminal surface are electrically connected to conductor layers formed on an upper surface side of the core layer.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: December 17, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hidenori Ishibashi, Kiyoshi Ishida, Eigo Kuwata, Yukinobu Tarui, Hideharu Yoshioka, Hiroyuki Aoyama, Masaomi Tsuru
  • Publication number: 20190357348
    Abstract: The multiband filter includes a printed circuit board, a first filter, a second filter having an outer dimension different from that of the first filter and passband frequencies higher than those of the first filter, an input terminal, an output terminal, a first inductor, a first capacitor, which are connected except the first capacitor by signal line conductor patterns to form a first transmission line, which connect the second filter, the input terminal, the output terminal, and the first capacitor to form a second transmission line, a part thereof in the first transmission line being arranged in an area on the printed circuit board, formed by the difference between the outer dimensions of the first and the second filters, to achieve desirable passbands and enough attenuation in a suppression band outside the passbands.
    Type: Application
    Filed: November 8, 2016
    Publication date: November 21, 2019
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takeshi YUASA, Takeshi OSHIMA, Hiroyuki AOYAMA
  • Publication number: 20190306969
    Abstract: Lossy members, which are disposed to overlap with a part of branch conductors in a signal conductor, respectively, and cause a loss of the power of signals flowing in the branch conductors, and via holes connecting each of the output terminals of the signal conductor and the ground conductor are included. The branch conductor includes a delay circuit having an electrical length of 90 degrees.
    Type: Application
    Filed: December 26, 2016
    Publication date: October 3, 2019
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hidenori ISHIBASHI, Yukinobu TARUI, Yuko ONODERA, Hiroyuki AOYAMA, Naofumi YONEDA
  • Publication number: 20190159332
    Abstract: A printed wiring board includes conductor layers, a core layer having an opening, and a build-up layer. A high frequency device placed within the opening is installed such that a mirror surface is thermally connected to a conductor layer for heat dissipation facing the opening from a lower surface side of the core layer, and terminals on the terminal surface are electrically connected to conductor layers formed on an upper surface side of the core layer.
    Type: Application
    Filed: April 27, 2016
    Publication date: May 23, 2019
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hidenori ISHIBASHI, Kiyoshi ISHIDA, Eigo KUWATA, Yukinobu TARUI, Hideharu YOSHIOKA, Hiroyuki AOYAMA, Masaomi TSURU
  • Patent number: 8253643
    Abstract: A chip antenna comprising a magnetic substrate comprising Z-type ferrite or Y-type ferrite as a main phase and having a through-hole extending linearly along a center axis, and a conductor penetrating the through-hole, the magnetic phase having a c-axis substantially parallel or perpendicular to the through-hole.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: August 28, 2012
    Assignee: Hitachi Metals Ltd.
    Inventors: Tomotsugu Kato, Masayuki Gonda, Hiroyuki Aoyama, Hideto Mikami
  • Patent number: 8154464
    Abstract: A magnetic material antenna using a ferrite sintered body comprising one or more conductors disposed at least on a surface or in internal portion of the ferrite sintered body, wherein the ferrite sintered body is a sintered body of Y-type ferrite containing BaO, CoO, and Fe2O3 as main components and wherein the ferrite sintered body contains Cu and, in a cross section for the sintered body, an area rate of a cubic Co-rich phase, which has a ration of an amount of Co being higher than a Y-type ferrite phase being a mother phase, is 1% or less.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: April 10, 2012
    Assignee: Hitachi Metals, Ltd.
    Inventors: Masayuki Gonda, Shigeo Fujii, Hiroyuki Aoyama
  • Patent number: 7903036
    Abstract: To realize an antenna device that can operate in wide bands (in a plurality of frequency bands) and can achieve an excellent antenna gain and maintain non-directivity of vertically polarized waves in each band in a space-saving manner, and also to provide a technique capable of maintaining mechanical reliability of the antenna device.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: March 8, 2011
    Assignee: Hitachi Metals, Ltd.
    Inventors: Yasunori Takaki, Toshiyuki Wada, Hiroyuki Aoyama
  • Patent number: 7821468
    Abstract: The linear conductor 2 penetrates the magnetic base 1 along with the longitudinal direction of the magnetic base 1. The linear conductor 2 has a straight shape. The straight shape conductor 2 is installed so that it is surrounded by outside planes of the magnetic base 1, such as the side of a rectangular parallelepiped or a cylindrical peripheral face, and it penetrates both end sides of the magnetic base 1 in the longitudinal direction.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: October 26, 2010
    Assignee: Hitachi Metals, Ltd.
    Inventors: Hiroyuki Aoyama, Masayuki Gonda, Sigeo Fujii, Shuuichi Takano
  • Publication number: 20100156733
    Abstract: A chip antenna comprising a magnetic substrate comprising Z-type ferrite or Y-type ferrite as a main phase and having a through-hole extending linearly along a center axis, and a conductor penetrating the through-hole, the magnetic phase having a c-axis substantially parallel or perpendicular to the through-hole.
    Type: Application
    Filed: June 9, 2008
    Publication date: June 24, 2010
    Applicant: HITACHI METALS, LTD.
    Inventors: Tomotsugu Kato, Masayuki Gonda, Hiroyuki Aoyama, Hideto Mikami
  • Patent number: 7701399
    Abstract: The chip antenna shown is provided with two chip antenna elements (the 1st chip antenna element 4, the 2nd chip antenna element 2). These chip antenna elements have the 1st magnetic base 10 and the 2nd magnetic base 8, and linear conductors 7 and 5 formed in the core, respectively. Magnetic base 10 and magnetic base 8 are separated. In the 1st chip antenna element 4, linear conductor 7 formed in the core of the 1st magnetic base 10 was formed to the end face of this magnetic base, and the end has protruded from said end face. On the other hand, in the 2nd chip antenna element 2, linear conductor 5 formed in the core of the 2nd magnetic base 8 has penetrated magnetic base 8. Furthermore, conductor 7 in the 1st chip antenna element and conductor 5 in the 2nd chip antenna element are electrically connected mutually in series by connection conductors 13 arranged among these chip antenna elements.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: April 20, 2010
    Assignee: Hitachi Metals, Ltd.
    Inventors: Hiroyuki Aoyama, Hidetosi Hagiwara
  • Patent number: 7679569
    Abstract: An antenna device is provided which is capable of saving space, of operating in wide bands (in a multi-band) and of achieving an excellent gain and maintaining non-directivity of vertically polarized waves in each band. The antenna device has a conductor antenna. An end portion 111a on one end side of the conductor antenna is mounted as a power feeding section and an end portion 112a on the other end side of the conductor antenna 110 is mounted as an open end terminal. The antenna device also has a base body made of an insulating material which is coupled to one end and other end of the conductor antenna. The base band is coupled in a place where an electric field strength of the conductor antenna having a folded-back portion is increased, thus achieving the wideband and high-gain antenna device.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: March 16, 2010
    Assignee: Hitachi Metals, Ltd.
    Inventors: Yasunori Takaki, Hiroyuki Aoyama, Hiroto Ideno
  • Patent number: 7651626
    Abstract: There is provided Y-type hexagonal ferrite having a high density of sintered body and a low level of loss and an antenna. The hexagonal ferrite having Y-type ferrite as the main phase is characterized in that main components of the hexagonal ferrite are M1O (M1 stands for at least one of Ba and Sr), M2O (M2 stands for at least one of Co, Ni, Cu, Zn and Mn) and Fe2O3, and the loss factor and the density of sintered body are 0.15 or lower and 4.6×103 kg/m3 or higher, respectively. The hexagonal ferrite is used to configure an antenna and a communication apparatus.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: January 26, 2010
    Assignee: Hitachi Metals, Ltd.
    Inventors: Masayuki Gonda, Hiroyuki Aoyama
  • Patent number: 7642970
    Abstract: An antenna device is provided which is capable of operating in a wider band of frequencies (in a plurality of transmitting and receiving frequency bands), achieving an excellent gain, maintaining non-directivity of vertically polarized waves in each of the transmitting and receiving frequency bands, and saving space. The antenna device includes the first antenna 101 being a chip-type antenna operating in a GSM band, second antenna 102 being a pattern antenna operating in DCS and PCS bands, third antenna 103 being a layer-stacked antenna operating in an UMTS band, all being mounted on a substrate 100. The second antenna 102 is connected to a line 105 extending from a power feeding port 104 connected to the first antenna 101. A gap is interposed between the second antenna 102 and third antenna 103 wherein the second antenna 102 is capacitively coupled to the third antenna 103 on the substrate 100 with no antenna switch being provided.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: January 5, 2010
    Assignee: Hitachi Metals, Ltd.
    Inventors: Hiroyuki Aoyama, Kazuo Kazama
  • Publication number: 20090273534
    Abstract: A magnetic material antenna using a ferrite sintered body comprising one or more conductors disposed at least on a surface or in internal portion of the ferrite sintered body, wherein the ferrite sintered body is a sintered body of Y-type ferrite containing BaO, CoO, and Fe2O3 as main components and wherein the ferrite sintered body contains Cu and, in a cross section for the sintered body, an area rate of a cubic Co-rich phase, which has a ration of an amount of Co being higher than a Y-type ferrite phase being a mother phase, is 1% or less.
    Type: Application
    Filed: June 21, 2007
    Publication date: November 5, 2009
    Inventors: Masayuki Gonda, Shigeo Fujii, Hiroyuki Aoyama
  • Publication number: 20090167614
    Abstract: [Problems] To realize an antenna device that can operate in wide bands (in a plurality of frequency bands) and can achieve an excellent antenna gain and maintain non-directivity of vertically polarized waves in each band in a space-saving manner, and also to provide a technique capable of maintaining mechanical reliability of the antenna device.
    Type: Application
    Filed: May 30, 2007
    Publication date: July 2, 2009
    Inventors: Yasunori Takaki, Toshiyuki Wada, Hiroyuki Aoyama