Patents by Inventor Tsugio Yamamoto

Tsugio Yamamoto 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: 10976346
    Abstract: A socket includes: a contact probe; and an insulating support body supporting the contact probe. The contact probe includes: a first plunger to be connected with an object to be inspected; a second plunger to be connected with an inspecting board; and a spring configured to urge the first plunger and the second plunger in a direction apart from each other. In a state where a tip end of the first plunger is released, a projecting amount of the second plunger from the insulating support body is zero with a natural length of the spring.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: April 13, 2021
    Assignee: YOKOWO CO., LTD.
    Inventors: Tsugio Yamamoto, Kenichi Sato, Takayoshi Okuno
  • Patent number: 10585117
    Abstract: A contact probe includes a first plunger, a second plunger, and a coil spring. The coil spring is disposed outside the first plunger, and urges the first plunger and the second plunger in a direction away from each other. The first plunger and the second plunger are fitted to each other so as to be slidable with respect to each other. The first plunger includes a large diameter part, and a small diameter part provided on a proximal end side of the large diameter part. The small diameter part is fitted into the second plunger. The coil spring includes a close winding part on a side of the second plunger. Adjacent lines of the close winding parts are brought into close contact with each other and come into electrical contact with each other at least in a compressed state of the coil spring.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: March 10, 2020
    Assignee: YOKOWO CO., LTD.
    Inventor: Tsugio Yamamoto
  • Publication number: 20190004090
    Abstract: A contact probe includes a first plunger, a second plunger, and a coil spring. The coil spring is disposed outside the first plunger, and urges the first plunger and the second plunger in a direction away from each other. The first plunger and the second plunger are fitted to each other so as to be slidable with respect to each other. The first plunger includes a large diameter pail, and a small diameter part provided on a proximal end side of the large diameter part. The small diameter part is fitted into the second plunger. The coil spring includes a close winding part on a side of the second plunger. Adjacent lines of the close winding parts are brought into close contact with each other and come into electrical contact with each other at least in a compressed state of the coil spring.
    Type: Application
    Filed: June 19, 2018
    Publication date: January 3, 2019
    Applicant: YOKOWO CO., LTD.
    Inventor: Tsugio YAMAMOTO
  • Publication number: 20180335447
    Abstract: A contact probe includes a tube which is electrically conductive, a plunger which is electrically conductive and disposed in the tube at one end of the tube, and a spring which is disposed in the tube and urges the plunger in a projection direction. The tube includes a slant portion on an inner circumferential surface of the tube. The slant portion is inclined with respect to an axial direction of the tube. A base portion comes into contact with the slant portion and an inclination of the plunger varies, when the plunger retracts.
    Type: Application
    Filed: May 17, 2018
    Publication date: November 22, 2018
    Applicant: YOKOWO CO., LTD.
    Inventor: Tsugio YAMAMOTO
  • Publication number: 20170248630
    Abstract: A socket includes: a contact probe; and an insulating support body supporting the contact probe. The contact probe includes: a first plunger to be connected with an object to be inspected; a second plunger to be connected with an inspecting board; and a spring configured to urge the first plunger and the second plunger in a direction apart from each other. In a state where a tip end of the first plunger is released, a projecting amount of the second plunger from the insulating support body is zero with a natural length of the spring.
    Type: Application
    Filed: February 24, 2017
    Publication date: August 31, 2017
    Applicant: YOKOWO CO., LTD.
    Inventors: Tsugio YAMAMOTO, Kenichi SATO, Takayoshi OKUNO
  • Patent number: 8723540
    Abstract: A contact probe includes: a first and second plungers, one of the first and second plungers being connected to an object to be inspected, the other being connected to an inspecting board; and a spring urging the first and second plungers so as to be separated from each other. The first plunger includes a distal end side columnar part and a flange part. The flange part includes a first portion that has a first length from a center point, which is, greater than a radius of the distal end side columnar part, in a first direction perpendicular to an axial direction, and includes a second portion that has a second length from the center point, which is smaller than the radius of the distal end side columnar part, in a second direction perpendicular to the axial direction and different from the first direction.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: May 13, 2014
    Assignee: Yokowo Co., Ltd.
    Inventors: Tsugio Yamamoto, Takeshi Todoroki
  • Publication number: 20140076210
    Abstract: The present invention includes: a mill main body with a material feed pipe for feeding a biomass material from above in a vertical axis direction; a mill table on which the fed biomass material is placed; a drive unit rotating and driving the mill table; a mill roller that operates in conjunction with rotation of the mill table to mill the biomass material by a pressing force; and a ventilation means that forms an upward flow to blow out a carrier gas to convey milled biomass powder, wherein the mill main body has a barrel part decreased in diameter in the middle thereof in the vertical axis direction, and the mill main body has on a top plate thereof a plurality of discharge tubes circumferentially arranged for discharging the biomass powder on a line extended from the diameter-decreased barrel part in the vertical axis direction.
    Type: Application
    Filed: September 30, 2011
    Publication date: March 20, 2014
    Inventors: Takuichiro Daimaru, Tsugio Yamamoto, Kenichi Arima, Masaaki Kinoshita, Kazuhiro Tekeuchi, Norichika Kai, Yoshishige Uematsu
  • Patent number: 8657221
    Abstract: A roller mill structure which achieves uniform distribution of fine particles passed through a rotary classifier to fine particle exits disposed at four points when conveying as pulverized coal milled in the roller mill on the air current is provided. A roller mill structure is configured to discharge pulverized coal obtained by milling a raw coal, which is loaded in a mill body (11), from fine particle exits (14) formed on the top of the mill body so as to be quartered in the circumferential direction to the outside by air current conveyance.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: February 25, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Shinji Matsumoto, Tsugio Yamamoto, Kazuhiro Takeuchi, Masahiko Taniguchi
  • Patent number: 8622328
    Abstract: In a vertical roller mill in which a fixed-type cyclone sorter is provided in a casing, the fixed-type cyclone sorter includes a conical member; a fixed-blade entrance window through which a solid-gas two-phase flow is introduced into the interior of the conical member; a flat plate-like fixed blade that causes the solid-gas two-phase flow to spiral; an inner cylinder into which pulverized coal is guided from the bottom end thereof toward the top end thereof by means of spiraling of the solid-gas two-phase flow; and a pulverized-coal exit through which the pulverized coal guided to the top end of the inner cylinder is guided outside the conical member, wherein the fixed blade is provided with a tip portion where a downward flow is increased for the solid-gas two-phase flow guided into the interior of the conical member from the fixed-blade entrance window.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: January 7, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Shinji Matsumoto, Takashi Tsutsuba, Koki Matsuzaki, Sotaro Yamaguchi, Yasuhiro Sueoka, Kenichi Arima, Tsugio Yamamoto, Takuichiro Daimaru
  • Publication number: 20130327861
    Abstract: In a vertical roller mill in which a fixed-type cyclone sorter is provided in a casing, the fixed-type cyclone sorter includes a conical member; a fixed-blade entrance window through which a solid-gas two-phase flow is introduced into the interior of the conical member; a flat plate-like fixed blade that causes the solid-gas two-phase flow to spiral; an inner cylinder into which pulverized coal is guided from the bottom end thereof toward the top end thereof by means of spiraling of the solid-gas two-phase flow; and a pulverized-coal exit through which the pulverized coal guided to the top end of the inner cylinder is guided outside the conical member, wherein the fixed blade is provided with a tip portion where a downward flow is increased for the solid-gas two-phase flow guided into the interior of the conical member from the fixed-blade entrance window.
    Type: Application
    Filed: August 22, 2011
    Publication date: December 12, 2013
    Inventors: Shinji Matsumoto, Takashi Tsutsuba, Koki Matsuzaki, Sotaro Yamaguchi, Yasuhiro Sueoka, Kenichi Arima, Tsugio Yamamoto, Takuichiro Daimaru
  • Patent number: 8590464
    Abstract: To achieve an improvement in concentration distribution in a vertical direction at an inlet of a pulverized coal distributor and uniformly distribute pulverized coal to respective pulverized coal burners.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: November 26, 2013
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Shinji Matsumoto, Tsugio Yamamoto, Masahiko Taniguchi, Kazuhiro Takeuchi
  • Patent number: 8519727
    Abstract: A contact probe include: a first plunger to be connected to an object to be inspected; a second plunger to be connected to a board for inspection; and a spring operable to urge the first and second plungers in directions of moving the first and second plungers apart from each other. A pillar part of one of the first and second plungers is slidably engaged with an inner periphery of a tubular part of the other of the first and second plungers. The pillar part includes an elastically deformable part which is in contact with a part of the inner periphery of the tubular part.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: August 27, 2013
    Assignee: Yokowo Co., Ltd.
    Inventor: Tsugio Yamamoto
  • Publication number: 20130061787
    Abstract: A biomass pulverizing apparatus includes a pulverizing apparatus body having a feedstock supply pipe, a pulverizing table for placing the supplied biomass feedstock thereon, a drive section for rotationally driving the pulverizing table, a pulverizing roller for pulverizing the biomass feedstock by a pressing force, and a blower unit for forming an upward flow upward from below on the outer peripheral side of the pulverizing table so as to jet conveying gas, and the pulverizing apparatus further includes an erected weir that is provided around the pulverizing table, and a first extending weir that extends from the pulverizing apparatus body side at lower portions of the pulverizing rollers and is formed with a plurality of slits that forms a predetermined gap with the upper surface of the erected weir.
    Type: Application
    Filed: May 16, 2011
    Publication date: March 14, 2013
    Inventors: Yutaka Iida, Tsugio Yamamoto, Yoshiki Yamaguchi, Masaaki Kinoshita, Yoshishige Uematsu
  • Publication number: 20120182036
    Abstract: A contact probe includes: a first and second plungers, one of the first and second plungers being connected to an object to be inspected, the other being connected to an inspecting board; and a spring urging the first and second plungers so as to be separated from each other. The first plunger includes a distal end side columnar part and a flange part. The flange part includes a first portion that has a first length from a center point, which is, greater than a radius of the distal end side columnar part, in a first direction perpendicular to an axial direction, and includes a second portion that has a second length from the center point, which is smaller than the radius of the distal end side columnar part, in a second direction perpendicular to the axial direction and different from the first direction.
    Type: Application
    Filed: January 17, 2012
    Publication date: July 19, 2012
    Inventors: Tsugio Yamamoto, Takeshi Todoroki
  • Publication number: 20120138718
    Abstract: In a vertical roller mill including a fixed classifier, a proportion of coarse particles in a pulverized coal product is reduced. The vertical roller mill (10) includes a cyclone-type fixed classifier (20A) provided within a casing (11) for classifying fine powder having a small particle diameter by centrifugal force and discharging the classified powder to the outside. The fixed classifier (20A) is adapted to discharge the fine powder to the outside from a pulverized coal outlet (16) at an upper side through a lower end portion of an inner cylinder (24) provided inside a cone (21) by introducing a solid-gas two-phase flow into the inside from a fixed vane inlet window (22) opened on the cone (21) and swirling the solid-gas two-phase flow using a fixed vane (23) arranged in the vicinity of the inner side of the fixed vane inlet window (22).
    Type: Application
    Filed: November 18, 2010
    Publication date: June 7, 2012
    Inventors: Takuichiro Daimaru, Yasuhiro Sueoka, Kenichi Arima, Tsugio Yamamoto, Takashi Tsutsuba, Shinji Matsumoto, Koki Matsuzaki, Sotaro Yamaguchi
  • Publication number: 20100276525
    Abstract: A roller mill structure which achieves uniform distribution of fine particles passed through a rotary classifier to fine particle exits disposed at four points when conveying as pulverized coal milled in the roller mill on the air current is provided. A roller mill structure is configured to discharge pulverized coal obtained by milling a raw coal, which is loaded in a mill body (11), from fine particle exits (14) formed on the top of the mill body so as to be quartered in the circumferential direction to the outside by air current conveyance.
    Type: Application
    Filed: June 3, 2008
    Publication date: November 4, 2010
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Shinji Matsumoto, Tsugio Yamamoto, Kazuhiro Takeuchi, Masahiko Taniguchi
  • Publication number: 20100271061
    Abstract: A contact probe include: a first plunger to be connected to an object to be inspected; a second plunger to be connected to a board for inspection; and a spring operable to urge the first and second plungers in directions of moving the first and second plungers apart from each other. A pillar part of one of the first and second plungers is slidably engaged with an inner periphery of a tubular part of the other of the first and second plungers. The pillar part includes an elastically deformable part which is in contact with a part of the inner periphery of the tubular part.
    Type: Application
    Filed: April 26, 2010
    Publication date: October 28, 2010
    Inventor: Tsugio Yamamoto
  • Publication number: 20100006012
    Abstract: To achieve an improvement in concentration distribution in a vertical direction at an inlet of a pulverized coal distributor and uniformly distribute pulverized coal to respective pulverized coal burners.
    Type: Application
    Filed: March 19, 2008
    Publication date: January 14, 2010
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Shinji Matsumoto, Tsugio Yamamoto, Masahiko Taniguchi, Kazuhiro Takeuchi
  • Patent number: 6991769
    Abstract: Methanol is synthesized from a gas produced through gasification of biomass serving as a raw material, making use of a biomass feeding means for feeding biomass into a furnace main body and, located above the biomass feeding means, combustion-oxidizing-agent-feeding means for feeding into the furnace main body a combustion-oxidizing agent containing oxygen or a mixture of oxygen and steam.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: January 31, 2006
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Shozo Kaneko, Susumu Sato, Yoshinori Kobayashi, Tatsuo Kabata, Kazuto Kobayashi, Yoshiyuki Takeuchi, Kimishiro Tokuda, Akira Hashimoto, Katsuhiko Shinoda, Keiji Takeno, Shinji Matsumoto, Hideaki Ohta, Tsugio Yamamoto, Masayasu Sakai, Toshiyuki Takegawa, Yajyuro Seike
  • Patent number: D589946
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: April 7, 2009
    Assignee: Yokowo Co., Ltd.
    Inventor: Tsugio Yamamoto