Patents by Inventor Atsushi Tada

Atsushi Tada 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: 10515565
    Abstract: A driving simulation test apparatus includes a movable body, a first translational drive portion that extends along a first direction, a first translational guide portion that extends along the first direction, and a plurality of first bases that extends along the first direction and is spaced from each other in a second direction. The first translational drive portion and the first translational guide portion are aligned in the second direction on each of the plurality of first bases, and the first translational drive portion includes a plurality of first translational drive portions arranged on each of the first bases.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: December 24, 2019
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Atsushi Tada, Masaaki Mitsuzono
  • Publication number: 20190348219
    Abstract: A method for producing a rare earth magnet includes a molding step of forming a green compact by supplying a metal powder containing a rare earth element into a mold, an orientation step of orienting the metal powder included in the green compact by applying a magnetic field to the green compact held in the mold, a separation step of separating at least a part of the mold from the green compact after the orientation step, a heating step of heating the green compact after the separation step to adjust the temperature of the green compact to 200° C. or higher and 450° C. or lower, and a sintering step of sintering the green compact after the heating step.
    Type: Application
    Filed: November 7, 2017
    Publication date: November 14, 2019
    Applicant: TDK Corporation
    Inventors: Toshiya HOZUMI, Shuji HIGASHI, Atsushi TADA
  • Publication number: 20190321929
    Abstract: A machine tool includes a mounting table, a tool, a shade detector, and a tool controller. A workpiece is placed on the mounting table. The tool includes a tip. The shade detector is fixed on the mounting table, provides an optical path of a laser light, and detects a shade state of the laser light. The tool controller is connected to the mounting table via a supporting structure and controls an orientation and a position of the tool. A reference point associated with the tool is provided to the tool controller. The tool controller corrects a position of the tip based on a difference between a position obtained by calculation of the reference point in the case where the tip is matched with a measurement position P of a laser light and a position of the reference point when the tip portion is actually matched with a measurement position while keeping the orientation of a tool.
    Type: Application
    Filed: May 16, 2019
    Publication date: October 24, 2019
    Applicant: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: YUSUKE ISHII, ATSUSHI TADA
  • Patent number: 10388440
    Abstract: An R-T-B based sintered magnet includes R2T14B crystal grains. A grain boundary formed by the two or more adjacent R2T14B crystal grains includes an R—N—O—C concentrated part having higher concentrations of “R”, N, O, and C than those in the R2T14B crystal grains. “R” of the R—N—O—C concentrated part includes Y. A ratio of Y atom to “R” atom in the R—N—O—C concentrated part is 0.65 or more and 1.00 or less. A ratio of O atom to “R” atom in the R—N—O—C concentrated part is more than 0 and 0.20 or less. A ratio of N atom to “R” atom in the R—N—O—C concentrated part is 0.03 or more and 0.15 or less.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: August 20, 2019
    Assignee: TDK CORPORATION
    Inventor: Atsushi Tada
  • Publication number: 20190144438
    Abstract: Provided is a production method of a thiazole derivative represented by the formula (I), which has an adenosine A2A receptor antagonistic action and is useful as a therapeutic agent for, for example, Parkinson's disease, sleep disorder, analgesic resistance to opioid, migraine, movement disorder, depression, anxiety disorder and the like. Also provided is a production method of a compound represented by the formula (C), which contains (i) a step of reacting a compound represented by the formula (A) and a compound represented by the formula (B), and the like: (wherein R1 represents furyl, R4, R5 and R6 are the same or different and each represents lower alkyl or aryl, R2 represents pyridyl or tetrahydropyranyl, and X1 represents halogen).
    Type: Application
    Filed: January 14, 2019
    Publication date: May 16, 2019
    Inventors: Takamasa Sugita, Arata Yanagisawa, Iwao Chujo, Masashi Taga, Akihiro Mimura, Atsushi Tada, Masashi Aoki
  • Publication number: 20190140251
    Abstract: A secondary battery includes an electrode body including a positive electrode plate and a negative electrode plate; a battery case containing the electrode body; a terminal attached to the battery case; a conductive member having an opening adjacent to the electrode body; a deformation plate that seals the opening, and a current collector. The positive electrode plate and a positive electrode terminal are electrically connected to each other via a first positive electrode current collector, the deformation plate, and the conductive member. The first positive electrode current collector has a through-hole. The deformation plate is disposed to face the through-hole. A portion of the first positive electrode current collector distant from the through-hole is welded to the deformation plate to form a weld.
    Type: Application
    Filed: November 1, 2018
    Publication date: May 9, 2019
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Ryoichi Wakimoto, Naoya Tada, Atsushi Tsuji, Yoshinori Yokoyama
  • Publication number: 20190140250
    Abstract: A secondary battery includes an electrode body including a positive electrode plate and a negative electrode plate; a battery case containing the electrode body; a positive electrode terminal attached to the battery case; a conductive member having an opening adjacent to the electrode body; a deformation plate that seals the opening, and a current collector. The positive electrode plate and the positive electrode terminal are electrically connected to each other via a first positive electrode current collector, the deformation plate, and the conductive member. The deformation plate has a thick portion, which has a larger thickness than the surrounding area, in a central part. The thick portion of the deformation plate is welded to the first positive electrode current collector to form a weld.
    Type: Application
    Filed: November 1, 2018
    Publication date: May 9, 2019
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Ryoichi Wakimoto, Naoya Tada, Atsushi Tsuji, Yoshinori Yokoyama
  • Patent number: 10186357
    Abstract: An R-T-B based sintered magnet including a main phase composed of an R2T14B (wherein, R is at least one selected from the group consisting of Y, Ce, La, Pr, Nd, Sm, Eu and Gd; and T is one or more transition metal elements with Fe as necessity) structure, wherein the R-T-B based sintered magnet has a grain boundary phase containing Ce, Fe and Co, and the cross-section area ratio of the grain boundary phase containing Ce, Fe and Co in a unit cross-section area is 1.0% or more and 5.0% or less.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: January 22, 2019
    Assignee: TDK CORPORATION
    Inventor: Atsushi Tada
  • Patent number: 10099314
    Abstract: A tool holder of a machine tool, in which the machine tool includes a spindle head and a spindle supported by the spindle head, includes: a shank portion attached to the spindle; a rotary portion integrally provided to the shank portion and to which a welding tool (processing tool) used for friction stir welding is attachable; a bearing mechanism (bearing) supporting the rotary portion so that the rotary portion is rotatable; and a bearing holder holding the bearing mechanism, in which the bearing holder is disposed facing the spindle head and is capable of transmitting a load applied to the bearing mechanism to the spindle head.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: October 16, 2018
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Kouichi Katoh, Masami Aihara, Atsushi Tada, Makoto Sawazaki
  • Patent number: 10022831
    Abstract: A foreign-substance discharge mechanism includes: a lubricating-liquid groove provided on a sliding surface of a wedge member and configured to receive a lubricating liquid; and a foreign-substance collector provided to the lubricating-liquid groove and configured to collect foreign substances existing in the lubricating-liquid groove. A first end and a second end of the lubricating-liquid groove are spaced apart from each other in a relative movement direction of the wedge member and the table bed. Disadvantages caused by the presence of the foreign substances between the sliding surfaces can be easily avoided by reliably collecting the foreign substances existing between the sliding surfaces using the lubricating-liquid groove and the foreign-substance collector.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: July 17, 2018
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Atsushi Tada, Minoru Kuroiwa
  • Patent number: 10016838
    Abstract: A friction stir welding tool attachable to a spindle of a machine tool includes: a shank connected to the spindle; a chuck connected to the shank through a heat insulating portion; a welding tool connected to the chuck and usable for friction stir welding; and a cooling jacket provided on a circumferential surface of the chuck. The cooling jacket is provided with a refrigerant path for delivering a refrigerant.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: July 10, 2018
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Kouichi Katoh, Masami Aihara, Atsushi Tada, Makoto Sawazaki
  • Publication number: 20180154489
    Abstract: A control system of a machine tool includes a hydraulic pressure adjuster. The hydraulic pressure adjuster includes a sequence program controller that includes components for adding a function of adjusting a hydrostatic pressure of a static pressure oil supplied to a hydrostatic pressure guide mechanism, which are a pressure setting unit, a constant acceleration motion controller, a workpiece-weight calculator and a supply state adjuster.
    Type: Application
    Filed: December 4, 2017
    Publication date: June 7, 2018
    Applicant: Toshiba Kikai Kabushiki Kaisha
    Inventors: Atsushi Tada, Takuma Miyamoto
  • Patent number: 9981316
    Abstract: Disclosed is an alignment system for a vertical lathe, the lathe configured to perform a cutting process on a workpiece (W) mounted on a circular turn table (3) by rotating the workpiece (W), and the alignment system configured to, when the lathe performs the cutting process on an unbalanced eccentric workpiece, perform a center alignment operation for correcting imbalance. The alignment system includes an alignment mechanism which includes: multiple alignment weights (13) provided movable along an outer periphery (3a) of the circular turn table (3); and a movement mechanism (15) configured to move the alignment weights along the outer periphery (3a) of the turn table (3). The alignment system further includes a control unit (7) configured to calculate setting positions for the alignment weights (13), and to set the alignment weights (13) at the calculated setting positions using the movement mechanism (15), in order to correct the imbalance.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: May 29, 2018
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventor: Atsushi Tada
  • Publication number: 20180136629
    Abstract: An industrial machinery includes: a drive mechanism driving a control target that moves work or a tool; a motor; a first sensor detecting a position of the control target; a second sensor detecting a position of the motor; a current controller controlling a supply current to the motor; a servo controller outputting a torque instruction to the current controller; and a numerical controller calculating a processing force of the control target to the work based on position information on the control target acquired from the first sensor, position information on the motor acquired from the second sensor, and the torque instruction, the numerical controller determining that the tool is in failure if an absolute value of a first component of the processing force becomes equal to or larger than a first threshold value while processing the work, the first component having a frequency lower than a predetermined frequency.
    Type: Application
    Filed: November 14, 2017
    Publication date: May 17, 2018
    Applicant: Toshiba Kikai Kabushiki Kaisha
    Inventors: Takamichi Ito, Jun Fujita, Atsushi Tada, Hirohiko Matsuzaki
  • Publication number: 20180050433
    Abstract: A machine tool of the present embodiment includes: a column that is disposed in a vertically standing manner and has a predetermined linear expansion coefficient; a spindle head that is supported by the column and supports a horizontal spindle for attaching a tool thereto; and a reference bar that is disposed separately from the column and has a linear expansion coefficient that is different from the linear expansion coefficient of the column wherein the column has a column-side measurement target zone, the reference bar has a reference bar-side measurement target zone, and a measurement means measures a distance between the column-side measurement target zone and the reference bar-side measurement target zone.
    Type: Application
    Filed: March 9, 2016
    Publication date: February 22, 2018
    Applicant: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: KATSUMI HIRABAYASHI, ATSUSHI TADA
  • Publication number: 20180002326
    Abstract: Provided is a production method of a thiazole derivative represented by the formula (I), which has an adenosine A2A receptor antagonistic action and is useful as a therapeutic agent for, for example, Parkinson's disease, sleep disorder, analgesic resistance to opioid, migraine, movement disorder, depression, anxiety disorder and the like. Also provided is a production method of a compound represented by the formula (C), which contains (i) a step of reacting a compound represented by the formula (A) and a compound represented by the formula (B), and the like: (wherein R1 represents furyl, R4, R5 and R6 are the same or different and each represents lower alkyl or aryl, R2 represents pyridyl or tetrahydropyranyl, and X1 represents halogen).
    Type: Application
    Filed: January 8, 2016
    Publication date: January 4, 2018
    Inventors: Takamasa Sugita, Arata Yanagisawa, Iwao Chujo, Masashi Taga, Akihiro Mimura, Atsushi Tada, Masashi Aoki
  • Patent number: 9845828
    Abstract: A guide mechanism for a machine tool includes a movement member and a guide member in a form of first and second rails the movement member and the guide member relatively movable to each other. A hydrostatic pressure guide mechanism and a sliding guide mechanism are formed between the movement member and the first and second rails. The hydrostatic pressure guide mechanism includes a static pressure chamber, a seal portion sealing a periphery of the static pressure chamber, and a supply passage configured to supply a lubricating oil into the static pressure chamber.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: December 19, 2017
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Atsushi Tada, Makoto Sagara, Teruaki Tsukiji, Takao Arai, Kazuhiro Takeuchi, Shun Tsunoda, Masato Inatsu, Yusuke Ishii, Yuya Tanaka
  • Patent number: 9803686
    Abstract: A hydrostatic pressure guide mechanism includes: a guide member having a smooth guide surface; a movement member having a slide surface facing the guide surface and an annular placement groove formed on the slide surface; an annular seal member (hermetically closing member) that is disposed in the placement groove and capable of hermetically contacting with the guide surface; an oil supply structure configured to supply an oil into a static pressure pocket on the slide surface surrounded by the seal member; and an oil recovery structure configured to recover the oil from the static pressure pocket, in which the oil recovery structure has a recovery hole that is formed in the static pressure pocket and is opened on the slide surface.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: October 31, 2017
    Assignees: TOSHIBA KIKAI KABUSHIKI KAISHA, YUGEN KAISHA NEWLY LABORATORY
    Inventors: Atsushi Tada, Makoto Sagara, Teruaki Tsukiji, Takao Arai
  • Patent number: 9776772
    Abstract: A bayonet connection structure between a container mouth portion and a cap is disclosed. The cap includes multiple slip prevention claws spaced apart from each other. One of the slip prevention claws is elastically displaceable in a radial direction. A rotation prevention projection is provided between the elastically-displaceable slip prevention claw and the other slip prevention claws. The mouth portion has a hollow cylindrical portion with an outer circumferential surface provided with multiple slip prevention claw (SPC) engagement portions for the slip prevention claws. The SPC engagement portions are as many as the slip prevention claws. Each of the SPC engagement portions has an end in a clockwise direction provided with a rotation prevention stopper. The mouth portion includes a rotation prevention rib to be got over by the rotation prevention projection of the cap when the cap is rotated.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: October 3, 2017
    Assignee: CANYON CO., LTD.
    Inventors: Atsushi Tada, Mitsuaki Shaduki
  • Publication number: 20170266756
    Abstract: A friction stir welding tool attachable to a spindle of a machine tool includes: a shank connected to the spindle; a chuck connected to the shank through a heat insulating portion; a welding tool connected to the chuck and usable for friction stir welding; and a cooling jacket provided on a circumferential surface of the chuck. The cooling jacket is provided with a refrigerant path for delivering a refrigerant.
    Type: Application
    Filed: March 10, 2017
    Publication date: September 21, 2017
    Applicant: Toshiba Kikai Kabushiki Kaisha
    Inventors: Kouichi KATOH, Masami AIHARA, Atsushi TADA, Makoto SAWAZAKI