Patents by Inventor Yoshihiro Tanaka

Yoshihiro Tanaka 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: 10316675
    Abstract: A seal device of a turbine includes: at least one step surface disposed on a radially outer surface of a rotor blade facing a first radial-directional gap or on an outer peripheral surface of a rotor facing a second radial-directional gap, the at least one step surface facing upstream in a flow direction of a fluid and dividing the radially outer surface of the rotor blade or the outer peripheral surface of the rotor into at least two sections in an axial direction of the rotor; at least two seal fins protruding toward the at least two sections, respectively, from a surrounding member or the stationary vane, and facing the at least two sections via a seal gap, respectively, the at least two seal fins forming a cavity which extends over the at least one step surface in the axial direction of the rotor between each other.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: June 11, 2019
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Yoshihiro Kuwamura, Hiroharu Oyama, Yoshinori Tanaka, Hideaki Sugishita
  • Patent number: 10316680
    Abstract: A turbine is provided with a seal device. The seal device includes: at least one step surface disposed in a region of an outer peripheral surface of a rotor facing a shroud of a stationary vane in the radial direction of the rotor, the at least one step surface facing upstream in a flow direction of the fluid and dividing the region of the outer peripheral surface into at least two sections in an axial direction of the rotor: at least two seal fins protruding toward the at least two sections from the stationary vane and facing the at least two sections via a seal gap; and a swirling-component application portion disposed on an end side of the shroud of the stationary vane with respect to the axial direction of the rotor and configured to be capable of applying a swirling component to the fluid flowing toward the seal gap.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: June 11, 2019
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Yoshihiro Kuwamura, Hiroharu Oyama, Yoshinori Tanaka, Hideaki Sugishita
  • Patent number: 10316679
    Abstract: A seal structure (2) for sealing a gap between a first structure body (10) and a second structure body (51). The seal structure includes: a peripheral surface formed on one of the first structure body and the second structure body; a plurality of seal fins (5) provided at intervals in the axial direction so as to form clearances (m) together with the peripheral surface and protrusions that form re-adhesion edges between pairs of axially adjacent seal fins; the re-adhesion edges being locations at which leak currents (SL) re-adhere that have passed through a clearance (mA) of an upstream seal fin; and the protrusions forming first cavities in which eddies (B1) are created that flow along the upstream seal fin toward the second structure body, and second cavities in which currents (B2) are created that cause a contraction current effect on a clearance (mB) of a downstream seal fin.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: June 11, 2019
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Toyoharu Nishikawa, Yoshihiro Kuwamura, Hiroharu Oyama, Yoshinori Tanaka, Shin Nishimoto, Kazuyuki Matsumoto, Hidekazu Uehara
  • Patent number: 10310331
    Abstract: A liquid crystal panel includes: first and second substrates arranged to be opposite each other at a predetermined gap; a liquid crystal layer filled between the first and second substrates; alignment films; a counter electrode pattern formed on the first substrate; and a pixel electrode pattern formed on the first substrate so as to have a plurality of electrode branches, the extension direction of which is bent at one bend point provided near an upper pixel portion from the center of a pixel region, and which are connected at the end portion of at least the upper pixel portion or lower pixel portion, wherein the extension direction of a slit formed near the upper pixel portion from the bend point from among slits formed in the pixel electrode pattern crosses the alignment direction of the liquid crystal layer at an angle of 7° or larger.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: June 4, 2019
    Assignee: Japan Display Inc.
    Inventors: Yoshihiro Sakurai, Hironao Tanaka, Harumi Okuno, Takeo Koito
  • Publication number: 20190099955
    Abstract: To provide a building method and a building apparatus for building an object having an inconspicuous deposition streak. The building method includes: receiving, from a user, a data on a thickness of a machining allowance added to the object; generating a building data to which a machining allowance having an input thickness is added; generating the object by depositing a building material based on the building data; and polishing a surface of the object.
    Type: Application
    Filed: September 6, 2018
    Publication date: April 4, 2019
    Applicant: MIMAKI ENGINEERING CO., LTD.
    Inventors: Yoshihiro Tanaka, Hiroyoshi Ohi
  • Publication number: 20180361673
    Abstract: To build an object more appropriately. A building apparatus for building an object in three-dimensional includes: an ejection head serving as a head for an object material that eject the object material constituting the object; an ejection head serving as a head for a support material that ejects the support material; and an ejection head serving as a head for a fluid material that ejects the fluid material. In a case of forming a support layer, part of the support layer is formed with the support material, and at least the other part of the support layer is formed with the fluid material.
    Type: Application
    Filed: June 7, 2018
    Publication date: December 20, 2018
    Applicant: MIMAKI ENGINEERING CO., LTD.
    Inventors: Kunio Hakkaku, Yoshihiro Tanaka
  • Patent number: 10147663
    Abstract: A ceramic circuit board includes a ceramic substrate, a first metal plate bonded to a front surface of the ceramic substrate, and a member bonded to a front surface side of the metal plate. The member is made up from a material which exhibits a lower coefficient of thermal expansion than that of the first metal plate, and which exhibits a higher Young's modulus than that of the first metal plate.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: December 4, 2018
    Assignee: NGK Insulators, Ltd.
    Inventors: Makoto Tani, Yoshihiro Tanaka, Takashi Ebigase
  • Publication number: 20180326653
    Abstract: An object is created by a more appropriate method when the object is created by combining pieces. A method of manufacturing a product is provided, in which a product 50 for use as a piece is manufactured when a three-dimensional object 40 is created. The product 50 is built by adding layers of an ink. The product 50 includes a surface region 202, an end region 204, and an interior region 206. At least a part of the surface region 202 is formed in a colored state using a coloring ink. At least a part of the interior region 206 is formed as a light-reflective region using a light-reflective ink. At least a part of a portion along an edge portion 210 of the surface region 202 in the end region 204 is formed in a colored state using a coloring ink.
    Type: Application
    Filed: April 24, 2018
    Publication date: November 15, 2018
    Applicant: MIMAKI ENGINEERING CO., LTD.
    Inventor: Yoshihiro Tanaka
  • Publication number: 20180250881
    Abstract: A building apparatus building a three-dimensional object includes: an inkjet head serving as an ejection head; and a scan driver. The scan driver causes the inkjet head to perform a main scanning operation and a sub scanning operation. In an operation of forming one layer, the scan driver causes the inkjet head to perform the main scanning operation a certain number of times Pn (Pn is an integer equal to or greater than two), for each position of the layer being built, and to form, as the one layer, a layer configured such that a plurality of blocks formed by performing the Pn main scanning operations are arranged in a row in a sub scanning direction. Each of the blocks includes an intermediate region and an end region. The manner of forming the end region in the corresponding block is differentiated between two layers continuously overlapping in the deposition direction.
    Type: Application
    Filed: March 1, 2018
    Publication date: September 6, 2018
    Applicant: MIMAKI ENGINEERING CO., LTD.
    Inventors: Kunio Hakkaku, Tetsuya Katou, Yoshihiro Tanaka
  • Publication number: 20180207860
    Abstract: A shaped object manufacturing method for shaping a three-dimensional shaped object by layering a plurality of layers in a layering direction, in which a hollow containing region, which is a first region formed by layering a plurality of layers in the layering direction, and an upper shaping region, which is a second region formed by layering a plurality of layers in the layering direction on the hollow containing region, are formed, and a cross section of the hollow containing region at a position along the layering direction exhibits a plane including a plurality of holes at least when shaping of the shaped object is completed.
    Type: Application
    Filed: January 10, 2018
    Publication date: July 26, 2018
    Inventor: Yoshihiro TANAKA
  • Publication number: 20180111329
    Abstract: A three-dimensional object includes an outer-layer member and an inner structural member. The outer-layer member is a layer to constitute the surface of the three-dimensional object, and includes an inner space. The outer-layer member is made up of a plurality of divided outer-layer pieces formed of build material, which is functional ink ejected from a droplet ejection head and cured. The inner structural member is disposed in the inner space of the outer-layer member and configured to support the outer-layer member.
    Type: Application
    Filed: October 19, 2017
    Publication date: April 26, 2018
    Inventors: Yoshihiro TANAKA, Kosuke KOBAYASHI, Yoshikazu FURUKAWA
  • Publication number: 20180093282
    Abstract: A charging device or an electric dust collector has a downstream side grounded electrode plate 90 placed so as to obstruct the flow of a dust-containing air and having openings 91 for allowing the dust-containing air to pass therethrough, a supporting plate 60 placed on the upstream side of the electrode plate 90, and downstream side discharging electrodes 80b supported by the supporting plate 60 so as to extend from the supporting plate 60 towards the electrode plate 90, and placed so as to correspond to the openings 91. The tip parts of the discharging electrodes 80b penetrate the openings 91 and project to the downstream side of the electrode plate 90, and the tip part of each discharging electrode 80b and the edge part of each opening 91 are positioned so as to have a predetermined gap between them.
    Type: Application
    Filed: April 4, 2016
    Publication date: April 5, 2018
    Applicant: AMANO CORPORATION
    Inventors: Shinjirou KATSUSHIMA, Yuji MAKISHIMA, Syohei NAKAGAWA, Masanori HASHIMOTO, Takumi SEO, Yoshiyuki KISANUKI, Yoshihiro TANAKA
  • Publication number: 20180061280
    Abstract: The three-dimensional object has a plurality of parts and a joining member that joins these parts. The joining member is independent from the parts. At the time of separating the parts from each other, the joining member is broken by pulling with a certain or greater strength one of the parts from the other in a direction in which one of the part is drawn apart from the other, or by rotating with a certain or greater strength one of the parts relative to the other about the part's center axis.
    Type: Application
    Filed: August 28, 2017
    Publication date: March 1, 2018
    Inventors: Eiji MIYASHITA, Yoshihiro TANAKA, Kunio HAKKAKU
  • Publication number: 20180056199
    Abstract: A three-dimensional object configured by a plurality of divided parts and having a surface, one portion of the surface is covered with a covering member. The three-dimensional object includes a first divided part as the divided part, which at least one portion of the first divided part is exposed from the covering member; and a second divided part as the divided part and is covered with the covering member. In the three-dimensional object, at least one portion of a joining surface of the first divided part and the second divided part is covered with the covering member.
    Type: Application
    Filed: August 29, 2017
    Publication date: March 1, 2018
    Applicant: MIMAKI ENGINEERING CO., LTD.
    Inventors: Keita Nishio, Masakatsu Okawa, Yoshihiro Tanaka
  • Publication number: 20180056579
    Abstract: To provide a three-dimensional object and a three-dimensional object manufacturing method that can facilitate handling compared to the conventional art even if the object is large. A three-dimensional object includes a frame and parts to be attached to the frame, where the parts each includes a tubular body interiorly formed with a cavity, and at least one part of the frame is arranged in the cavity.
    Type: Application
    Filed: August 29, 2017
    Publication date: March 1, 2018
    Inventors: Kenji HARAYAMA, Yoshihiro TANAKA, Keita NISHIO, Katsutoshi YAMABE
  • Patent number: 9777719
    Abstract: In a fuel pump that includes a pump housing (10) that has fuel passages (11a, 11b), a plunger (17) that is movably housed in the pump housing (10), a fuel pressurizing chamber (15) that is formed in the pump housing (10) and draws in fuel via one of the fuel passages (11a) that is on the intake side of the fuel pressurizing chamber (15), pressurizes the fuel that has been drawn in, and discharges the pressurized fuel via the other fuel passage (11b) that is on the discharge side of the fuel pressure chamber (15), in response to movement of the plunger (17), and valve elements (12, 14, 16) that are arranged in the fuel passages (11a, 11b) near the fuel pressurizing chamber (15), each of the valve elements (12, 14, 16) has a reed valve body (41, 42, 43; 74, 75, 76) arranged in the fuel passage (11a) on the intake side of the fuel pressurizing chamber (15) or the fuel passage (11b) on the discharge side of the fuel pressurizing chamber (15); and an operating member (21) that applies operating force in at least o
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: October 3, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Usui, Takeshi Kitamura, Hirokazu Yokoyama, Yoshihiro Tanaka
  • Publication number: 20170265814
    Abstract: A contact detection instrument 1 is provided with a rod 12, a tip sensor portion 20 that is attached to one end of the rod 12 and is inserted into a living body through a hole, a speaker 14 that, from outside the living body, inputs a sound into a hollow space that is formed in the interior of the rod 12 and the tip sensor portion 20, and a microphone 15 that, outside the living body, outputs an electrical signal that corresponds to the sound inside the hollow space, with the tip sensor portion 20 including an elastic material that covers the hollow space.
    Type: Application
    Filed: August 4, 2015
    Publication date: September 21, 2017
    Applicants: NAGOYA INSTITUTE OF TECHNOLOGY, NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY
    Inventors: Yoshihiro TANAKA, Akihito SANO, Michitaka FUJIWARA
  • Patent number: 9595488
    Abstract: A semiconductor device according to one embodiment of the present invention includes a semiconductor element, an island having a surface on which the semiconductor element is fixed using a first metal, and a first pattern formed by a second metal, the first pattern being arranged on one part of the surface, wherein the second metal has a greater wetting characteristic than the surface when the first metal is melted.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: March 14, 2017
    Assignee: J-Devices Corporation
    Inventor: Yoshihiro Tanaka
  • Patent number: 9460984
    Abstract: A heat dissipating circuit board for a power semiconductor includes an electrode material on which a power semiconductor is mounted on a front surface thereof, and a member bonded to a front surface side of the electrode material. The member is made up from a material which exhibits a lower coefficient of thermal expansion than that of the electrode material, and which exhibits a higher Young's modulus than that of the electrode material.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: October 4, 2016
    Assignee: NGK Insulators, Ltd.
    Inventors: Makoto Tani, Yoshihiro Tanaka, Takashi Ebigase
  • Patent number: 9452553
    Abstract: Disclosed is a surface structure of an article (1) including multiple protrusions (3) on the surface. A height H of the protrusions (3) is equal to or larger than 5 ?m, and equal to or smaller than 32 ?m, as well as at least one of a distance P between each two neighboring protrusions (3) and a distance W between each neighboring two of recesses (5) formed between the protrusions (3) is larger than the height H of the protrusions (3).
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: September 27, 2016
    Assignees: NISSAN MOTOR CO., LTD., NATIONAL UNIVERSITY CORPORATION NAGOYA INSTITUTE OF TECHNOLOGY
    Inventors: Akane Motofuji, Makoto Tamuraya, Takashi Takeuchi, Hideo Fujimoto, Akihito Sano, Hiromi Mochiyama, Naoyuki Takesue, Yoshihiro Tanaka