Patents by Inventor Kazumi Tanaka

Kazumi 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: 11596922
    Abstract: A solid fiber is described, where the solid fiber is characterized by (a) a modification degree Do/Di, in a cross section of the solid fiber of 1.20 to 8.50 where the inscribed circle diameter is denoted by Di and the circumscribed circle diameter is denoted by Do; and (b) a porous specific surface area of not less than 30 m2/g.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: March 7, 2023
    Assignee: TORAY INDUSTRIES. INC.
    Inventors: Hiroaki Fujieda, Yoshiyuki Ueno, Kazumi Tanaka
  • Publication number: 20210104710
    Abstract: An electrochemical cell includes an electrode body that has a plurality of electrodes stacked on each other in a direction of a battery axis O, and an exterior body that has a first laminate member and a second laminate member, and that internally accommodates the electrode body. The exterior body includes an accommodation portion that internally accommodates the electrode body, and a sealing portion in which the first laminate member and the second laminate member are joined to each other in a state where the first laminate member and the second laminate member overlap each other so as to seal an inside of the accommodation portion. The accommodation portion includes a top wall portion and a bottom wall portion which face each other with the electrode body interposed therebetween in the direction of the battery axis, and a cylindrical peripheral wall portion which surrounds the electrode body from an outer side in a radial direction.
    Type: Application
    Filed: September 28, 2020
    Publication date: April 8, 2021
    Inventors: Shunji WATANABE, Kazumi Tanaka, Nagayuki Kimura, Tsuneaki Tamachi
  • Patent number: 10622592
    Abstract: An electrochemical cell includes an electrode body which includes a positive electrode and a negative electrode and an outer package which is formed by overlapping a first member and a second member. The outer package includes: a housing portion which houses the electrode body; and a sealing portion which is formed along an outer circumference of the housing portion, by fusing and bending the first member and the second member, at a portion corresponding to the outer circumference of the housing portion.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: April 14, 2020
    Assignee: SEIKO INSTRUMENTS INC.
    Inventors: Shunji Watanabe, Kazumi Tanaka, Yoshimi Kanno, Tsuneaki Tamachi
  • Publication number: 20190126239
    Abstract: A solid fiber has a modified cross-section which satisfies the following (a) to (b): (a) a modification degree Do/Di, in a cross section of the solid fiber, is 1.20 to 8.50 when the inscribed circle diameter is denoted by Di and the circumscribed circle diameter is denoted by Do; and (b) a porous specific surface area of the fiber is not less than 30 m2/g. An adsorbent material comprises not less than 28 vol % of the porous fiber as a fiber bundle. A purification column is formed by arranging the adsorbent material in the straight form in an axis direction of a plastic casing and by attaching an inlet port and an outlet port of a fluid that is to be treated to both ends of the plastic casing. The porous fiber can efficiently adsorb a removal target substance in the fluid that is to be treated, and a purification column incorporates the porous fiber.
    Type: Application
    Filed: April 20, 2017
    Publication date: May 2, 2019
    Applicant: Toray Industries, Inc.
    Inventors: Hiroaki Fujieda, Yoshiyuki Ueno, Kazumi Tanaka
  • Patent number: 10265678
    Abstract: There are provided porous fibers having excellent removal performance with respect to a material to be purified; and a purification column into which an adsorbent material obtained by bundling the fibers is incorporated. The porous fibers satisfying the following conditions (a) and (b) and having a shape in which three or more projected parts are continuously present in the lengthwise direction on the periphery part of a solid-state fiber: (a) The modification degree Do/Di in a cross section is 1.2 to 6.6 when the diameter of the inscribed circle is denoted by Di and the diameter of the circumscribed circle is denoted by Do., and (b) The specific surface area of pores is 50 m2/g or more.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: April 23, 2019
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Hiroaki Fujieda, Yoshiyuki Ueno, Kazumi Tanaka
  • Patent number: 10249904
    Abstract: The present invention provides an electrochemical cell including: an electrode body; an exterior packaging body in which a plurality of substrates including a first substrate formed from a ceramic material are stacked in the first direction, and a cavity in which the electrode body is accommodated is formed; a first electrode connection wiring that is formed in the exterior packaging body and connects a first electrode layer and an external substrate to each other; and a second electrode connection wiring that is forming in the exterior packaging body and connects a second electrode layer and the external substrate to each other. At least the first electrode connection wiring is formed in the first substrate, and an attachment portion, to which a fastening member configured to mount at least the first electrode connection wiring to the external substrate is attached, is formed in the first substrate.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: April 2, 2019
    Assignees: SEIKO INSTRUMENTS INC., OHARA INC.
    Inventors: Shunji Watanabe, Tsuneaki Tamachi, Yoshimi Kanno, Kazumi Tanaka, Kazuhito Ogasa, Ryohei Sato
  • Patent number: 10213543
    Abstract: A blood purification column includes an adsorbent and a casing whose two ends are open ends, wherein the adsorbent is housed inside the casing, and wherein one of two casing ends is a blood inflow-side end portion and another is a blood outflow-side end portion, and wherein a filter is disposed at the blood inflow-side end portion and/or the blood outflow-side end portion of the casing, and wherein the filter satisfies (1)-(3): (1) an opening rate thereof is greater than or equal to 5% and less than or equal to 80%; (2) an equivalent diameter of an aperture thereof is greater than or equal to 1 ?m and less than or equal to 5000 ?m; (3) a ratio of the equivalent diameter of the aperture thereof to an average circle equivalent diameter of void spaces of the adsorbent is greater than or equal to 45%.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: February 26, 2019
    Assignee: Toray Industries, Inc.
    Inventors: Hiroaki Fujieda, Yoshiyuki Ueno, Kazumi Tanaka
  • Publication number: 20180145284
    Abstract: An electrochemical cell includes an electrode body which includes a positive electrode and a negative electrode and an outer package which is formed by overlapping a first member and a second member. The outer package includes: a housing portion which houses the electrode body; and a sealing portion which is formed along an outer circumference of the housing portion, by fusing and bending the first member and the second member, at a portion corresponding to the outer circumference of the housing portion.
    Type: Application
    Filed: November 17, 2017
    Publication date: May 24, 2018
    Inventors: Shunji WATANABE, Kazumi TANAKA, Yoshimi KANNO, Tsuneaki TAMACHI
  • Patent number: 9941504
    Abstract: The present invention is an all-solid-state electrode body including: a positive electrode via that is formed in a negative electrode connection layer, and connects a plurality of a positive electrode connection layers adjacent to each other in a first direction; a negative electrode via that is formed in the positive electrode connection layer, and connects a plurality of the negative electrode connection layers adjacent to each other in the first direction; a positive electrode current collector layer which is exposed on a first surface that faces one side of the first direction in a stacked body, and is connected to the positive electrode connection layer via the positive electrode via; and a negative electrode current collector layer which is exposed on the first surface in the stacked body, and is connected to the negative electrode connection layer via the negative electrode via.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: April 10, 2018
    Assignees: SEIKO INSTRUMENTS INC., OHARA INC.
    Inventors: Shunji Watanabe, Tsuneaki Tamachi, Yoshimi Kanno, Kazumi Tanaka, Kazuhito Ogasa, Ryohei Sato
  • Publication number: 20170333871
    Abstract: There are provided porous fibers having excellent removal performance with respect to a material to be purified; and a purification column into which an adsorbent material obtained by bundling the fibers is incorporated. The porous fibers satisfying the following conditions (a) and (b) and having a shape in which three or more projected parts are continuously present in the lengthwise direction on the periphery part of a solid-state fiber: (a) The modification degree Do/Di in a cross section is 1.2 to 6.6 when the diameter of the inscribed circle is denoted by Di and the diameter of the circumscribed circle is denoted by Do., and (b) The specific surface area of pores is 50 m2/g or more.
    Type: Application
    Filed: October 20, 2015
    Publication date: November 23, 2017
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Hiroaki Fujieda, Yoshiyuki Ueno, Kazumi Tanaka
  • Publication number: 20170256816
    Abstract: The present invention provides an electrochemical cell including: an electrode body; an exterior packaging body in which a plurality of substrates including a first substrate formed from a ceramic material are stacked in the first direction, and a cavity in which the electrode body is accommodated is formed; a first electrode connection wiring that is formed in the exterior packaging body and connects a first electrode layer and an external substrate to each other; and a second electrode connection wiring that is forming in the exterior packaging body and connects a second electrode layer and the external substrate to each other. At least the first electrode connection wiring is formed in the first substrate, and an attachment portion, to which a fastening member configured to mount at least the first electrode connection wiring to the external substrate is attached, is formed in the first substrate.
    Type: Application
    Filed: January 27, 2017
    Publication date: September 7, 2017
    Inventors: Shunji WATANABE, Tsuneaki TAMACHI, Yoshimi KANNO, Kazumi TANAKA, Kazuhito OGASA, Ryohei SATO
  • Publication number: 20170250393
    Abstract: The present invention is an all-solid-state electrode body including: a positive electrode via that is formed in a negative electrode connection layer, and connects a plurality of a positive electrode connection layers adjacent to each other in a first direction; a negative electrode via that is formed in the positive electrode connection layer, and connects a plurality of the negative electrode connection layers adjacent to each other in the first direction; a positive electrode current collector layer which is exposed on a first surface that faces one side of the first direction in a stacked body, and is connected to the positive electrode connection layer via the positive electrode via; and a negative electrode current collector layer which is exposed on the first surface in the stacked body, and is connected to the negative electrode connection layer via the negative electrode via.
    Type: Application
    Filed: February 22, 2017
    Publication date: August 31, 2017
    Inventors: Shunji WATANABE, Tsuneaki TAMACHI, Yoshimi KANNO, Kazumi TANAKA, Kazuhito OGASA, Ryohei SATO
  • Publication number: 20160141561
    Abstract: To provide an electrochemical cell and a method of manufacturing the electrochemical cell capable of securing the electric reliability while simplifying the structure and reducing manufacturing man-hours and costs.
    Type: Application
    Filed: November 17, 2015
    Publication date: May 19, 2016
    Inventors: Shunji WATANABE, Kazumi TANAKA, Tsuneaki TAMACHI
  • Publication number: 20150374898
    Abstract: A blood purification column includes an adsorbent and a casing whose two ends are open ends, wherein the adsorbent is housed inside the casing, and wherein one of two casing ends is a blood inflow-side end portion and another is a blood outflow-side end portion, and wherein a filter is disposed at the blood inflow-side end portion and/or the blood outflow-side end portion of the casing, and wherein the filter satisfies (1)-(3): (1) an opening rate thereof is greater than or equal to 5% and less than or equal to 80%; (2) an equivalent diameter of an aperture thereof is greater than or equal to 1 ?m and less than or equal to 5000 ?m; (3) a ratio of the equivalent diameter of the aperture thereof to an average circle equivalent diameter of void spaces of the adsorbent is greater than or equal to 45%.
    Type: Application
    Filed: February 7, 2014
    Publication date: December 31, 2015
    Applicant: Toray Tndustries, Inc.,
    Inventors: Hiroaki Fujieda, Yoshiyuki Ueno, Kazumi Tanaka
  • Patent number: 9060701
    Abstract: Provided is a medical image diagnosis apparatus which requires a small area for installation, has a short length in an axial direction of the apparatus, can reduce a problem of the strength of a top plate, and can simultaneously carry out dynamic PET-imaging of the entire body. A top plate (61) on which an examinee lies is moved through a tunnel of a CT gantry (2) and a PET gantry (3) to execute CT imaging and PET imaging. A PET unit consisting of a plurality (e.g. seven) of PET units (32) has a length of 2 m in the axis direction, the visual field thereof covers the whole body and the whole body can be simultaneously subjected to dynamic PET-imaging. For the maintenance of the PET gantry (3), the diagnosis apparatus is separated at an arbitrary PET unit (32) to be maintained, the apparatus slides on a rail (31) in the axis direction and is separated for maintenance operation. Accordingly, a large space for maintenance is not required and the area for installation is small.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: June 23, 2015
    Assignee: SHIMADZU CORPORATION
    Inventors: Yoshihiro Inoue, Masaharu Amano, Kazumi Tanaka, Tetsuro Mizuta, Atsushi Ohtani
  • Patent number: 8964357
    Abstract: An electric double layer capacitor with a low resistance value is disclosed. The electric double layer capacitor includes an electrochemical device in the inside of a housing container and capable of achieving charge and discharge via external terminals, wherein the electrochemical device includes a pair of electrodes, a separator disposed between the pair of electrodes, and an electrolytic solution with which the pair of electrodes and the separator are impregnated; when a volume between the pair of electrodes is designated as Ve, and a volume of a void in an inter-electrode part of the separator disposed between the pair of electrodes is designated as Se, an inter-electrode part void ratio Re is defined as Re=Se/Ve×100 (%); and when a thickness of the inter-electrode part is designated as L2 (?m), and a separator evaluation index Ie is defined as Ie=L2/Re (?m/%), a relation of Ie?1.0 (?m/%) is satisfied.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 24, 2015
    Assignee: Seiko Instruments Inc.
    Inventors: Tsuneaki Tamachi, Ryo Sato, Kazumi Tanaka, Kensuke Tahara, Tadahito Suzuki, Akira Sato
  • Patent number: 8827004
    Abstract: A power tool includes a motor, a housing that accommodates the motor, a switch that supplies power to the motor, a switch lever that is provided movable relative to the housing to selectively turn ON and OFF the switch, and an off-lock member that is provided movable relative to the switch lever. The off-lock member includes a first engaging part and a second engaging part that are engageable with the housing.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: September 9, 2014
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Nobuhito Hosokawa, Junichi Konishi, Kazumi Tanaka, Yuuki Takeda
  • Patent number: 8686675
    Abstract: According to an aspect of the present invention, there is provided a power tool including: a motor; a switching device that switches over, in response to a conduction angle thereof, an AC voltage to be applied to the motor; a rotation speed setting unit that sets a target rotation speed of the motor; a rotation speed detection unit that detects an actual rotation speed of the motor; and a controller that determines the conduction angle by comparing the actual rotation speed with the target rotation speed and that controls the switching device by use of the conduction angle based on a maximum conduction angle, the maximum conduction angle being set in accordance with the target rotation speed.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: April 1, 2014
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Yoshikazu Kawano, Nobihiro Takano, Eiji Nakayama, Kenro Ishimaru, Kazumi Tanaka, Masahiro Isono
  • Publication number: 20130308249
    Abstract: An electric double layer capacitor with a low resistance value is disclosed. The electric double layer capacitor includes an electrochemical device in the inside of a housing container and capable of achieving charge and discharge via external terminals, wherein the electrochemical device includes a pair of electrodes, a separator disposed between the pair of electrodes, and an electrolytic solution with which the pair of electrodes and the separator are impregnated; when a volume between the pair of electrodes is designated as Ve, and a volume of a void in an inter-electrode part of the separator disposed between the pair of electrodes is designated as Se, an inter-electrode part void ratio Re is defined as Re=Se/Ve×100 (%); and when a thickness of the inter-electrode part is designated as L2 (?m), and a separator evaluation index Ie is defined as Ie=L2/Re (?m/%), a relation of Ie?1.0 (?m/%) is satisfied.
    Type: Application
    Filed: March 15, 2013
    Publication date: November 21, 2013
    Inventors: Tsuneaki TAMACHI, Ryo SATO, Kazumi TANAKA, Kensuke TAHARA, Tadahito SUZUKI, Akira SATO
  • Patent number: 8550885
    Abstract: A grinder includes a housing, a gear cover attached to the housing by a plurality of screws, a spindle case attached to the gear cover, a wheel guard rotatably mounted on the spindle case for covering approximately a half of a disc-shaped tool bit attached to a spindle, a stop piece that regulates the rotation of the wheel guard. The wheel guard is selectively fixed to and unfixed from the spindle case. The stop piece is fixed to the housing together with the gear cover by at least one of the plurality of screws. The stop piece has an abutting section at which the stop piece abuts the wheel guard to regulate the rotation of the wheel guard. The abutting section is located at a position deviated from an axial line of the at least one of the plurality of screws.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: October 8, 2013
    Assignee: Hitachi Koki Co., Ltd.
    Inventor: Kazumi Tanaka