Patents by Inventor Yukio Tamura
Yukio Tamura 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).
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Publication number: 20120255162Abstract: The present invention provides a temperature-sensitive pellet type thermal fuse, a manufacturing method of the temperature-sensitive pellet type thermal fuse and a mounting method of the temperature-sensitive pellet type thermal fuse which, when the fuse is mounted on a temperature control target object having a planar portion, can ensure a high heat response speed, can decrease the difference in a heat response time for every product, can ensure high operational reliability, reduces the number of parts, and can reduce a manufacturing cost.Type: ApplicationFiled: June 23, 2010Publication date: October 11, 2012Applicant: The Hosho CorporationInventor: Yukio Tamura
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Publication number: 20060046053Abstract: A braided cord consisting of braided filaments or a twisted cord of filaments in which at least a part of the filaments are high tenacity multifilaments, and the rest of the filaments are monofilaments, which is preferably used as a serving for an archery bowstring.Type: ApplicationFiled: April 29, 2005Publication date: March 2, 2006Applicants: TOYO BOSEKI KABUSHIKI KAISHA, Yoz-Ami Corporation, Angel CO., LTD.Inventors: Kojiro Hamano, Shigeru Nakanishi, Yukio Tamura
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Patent number: 6415952Abstract: A plurality of article-storing columns, each of which stores therein various kinds of articles piled up and being different from others, are arranged within a machine in row and column directions. At the lower part of each of these article-storing columns, an article-push-out means for pushing out an article at the lowest layer, respectively. A movable article-picking-up means which operates for the article-push-out means of each of the article-storing columns at position opposite to it is provided. The article pushed out by the movement of the article-push-out means actuated by the article-picking-up means is taken into the article-picking-up means and carried to a article-take-out unit of the machine. Further, a plurality of article-storing columns, each of which stores therein various kinds of articles piled up and being different from others, are arranged within a machine in row and column directions.Type: GrantFiled: May 1, 2000Date of Patent: July 9, 2002Assignee: Sanyo Electric Co., Ltd.Inventors: Yuji Ohtuka, Yukio Tamura
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Patent number: 6119967Abstract: A control circuit of a transportable crusher supplies, by the same pump, a required flow rate to hydraulic motors and actuators for a plurality of operating devices having different loads and improves simultaneous operability, fine adjustment, and reproducibility.Type: GrantFiled: November 30, 1997Date of Patent: September 19, 2000Assignee: Komatsu Ltd.Inventors: Toru Nakayama, Yukio Tamura, Toshio Kitani, Satoru Koyanagi, Yuji Ozawa, Yoshimitsu Yuzawa, Katsuhiro Ikegami, Mikihisa Takiguchi
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Patent number: 5833150Abstract: The present invention is a mobile crusher and a method for controlling the same, wherein the most suitable amount of crushed substances can be always secured so as to obtain crushed substances having a desired particle size distribution.Type: GrantFiled: July 23, 1997Date of Patent: November 10, 1998Assignee: Komatsu Ltd.Inventors: Satoru Koyanagi, Yukio Tamura, Toru Nakayama, Katsuhiro Ikegami
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Patent number: 5803376Abstract: A crushing machine control system for a self-traveling crushing machine vehicle having mounted thereon a crushing machine driven by a single variable capacity type hydraulic motor. The control system includes a load sensor for detecting an inlet pressure of the hydraulic motor which reflects a magnitude of a load acting on the crushing machine, and a capacity controller for increasing a capacity of the hydraulic motor when the detected inlet pressure is greater than a predetermined value and for decreasing the capacity of the hydraulic motor when the detected inlet pressure is smaller than the predetermined value.Type: GrantFiled: December 31, 1996Date of Patent: September 8, 1998Assignee: Komatsu Ltd.Inventors: Satoru Koyanagi, Katsuhiro Ikegami, Yukio Tamura, Toru Nakayama, Yuji Ozawa
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Patent number: 5797548Abstract: In a self-propelled crushing machine having a vehicle body, a traveling body mounted on the lower portion of the vehicle body, a crusher mounted on the upper portion of the vehicle body, and a hopper mounted on the upper portions of the vehicle body having a feeder for supplying an object of crush to an inlet of the crusher, the self-traveling crushing machine includes crusher driving means for driving the crusher, an excessive load detector for detecting whether an excessive load is acting on the crusher driving means or not, a feeder driver for driving the feeder, and control means for stopping the feeder driver when excessive load is detected by the excessive load detector means and actuating the feeder driver when excessive load is not detected.Type: GrantFiled: April 4, 1996Date of Patent: August 25, 1998Assignee: Komatsu Ltd.Inventors: Yukio Tamura, Mitsuhisa Sakae, Satoru Koyanagi, Toru Nakayama
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Patent number: 5765765Abstract: A method of driving a dual axis shearing type crushing machine mounted on a self-traveling vehicle body for crushing crushable building scraps at a building wrecking site. The crushing machine includes a pair of rotary shafts provided with a plurality of cutters within a housing on the vehicle body. The rotary shafts are supported sidelong so as to be concurrently rotatable, and the crushing machine also includes a scraper attached to an inner surface of the housing on the vehicle body so as to oppose the cutters and the rotary shafts.Type: GrantFiled: January 14, 1997Date of Patent: June 16, 1998Assignee: Komatsu Ltd.Inventors: Yukio Tamura, Toshio Kitani, Satoru Koyanagi, Toru Nakayama, Katsuhiro Ikegami, Yuji Ozawa
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Patent number: 5730373Abstract: There is provided a crusher system drive control apparatus for a traveling type crushing machine including a vehicle body that is equipped with a traveling body and that has mounted thereon a crusher system including a feeder, a crusher and a belt conveyer, which drive control apparatus comprises an abnormal condition detecting means for sensing an abnormal stop of the said belt conveyer, and an operation terminating means in response to a detection signal that is output by the said abnormal condition detecting means for stopping an operation of each of the said feeder and the said crusher.Type: GrantFiled: June 13, 1996Date of Patent: March 24, 1998Assignee: Komatsu Ltd.Inventors: Yukio Tamura, Yasutaka Nishida, Masaho Yamaguchi, Motoki Kurohara, Toru Nakayama
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Patent number: 5716014Abstract: A self-advancing crushing machine includes a vehicle body, a travelling structure mounted to the vehicle body, a crusher mounted to the vehicle body and provided with a rotational shaft arranged horizontally and adapted to support a rotational blade, and a crusher motor unit having an output shaft mechanically coupled directly with a rotational shaft of the crusher. The mounting of the crusher motor unit to the vehicle body is achieved by a vehicle body side support structure fixedly secured to the vehicle body and a support member fixed to the crusher motor unit and adapted to support the crusher motor unit on the vehicle body through a mechanical coupling with the vehicle body side support structure.Type: GrantFiled: February 1, 1996Date of Patent: February 10, 1998Assignee: Komatsu Ltd.Inventors: Yukio Tamura, Toru Nakayama, Yuji Ozawa
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Patent number: 5622322Abstract: A self-propelling crushing machine is constructed by mounting a hopper (11) and a crusher (8) connected to said hopper on a vehicle body (1) having a traveling device (19), wherein a bottom plate (51) of said hopper (11) is designed for reciprocal motion in a horizontal direction relative to a charge inlet (8b) of said crusher. The bottom plate (51) receives an object of crush and then feeds into the charge inlet (8b) of the crusher (8) by reciprocal motion of the bottom plate to drop into the latter. Therefore, even when the weight of the object of crush or the charge amount of the object of crush into the hopper fluctuates, a substantially constant amount of object of crush can be fed into the crusher.Type: GrantFiled: February 21, 1995Date of Patent: April 22, 1997Assignee: Kabushiki Kaisha Komatsu SeisakushoInventors: Yukio Tamura, Yasutaka Nishida
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Patent number: 5580004Abstract: When objects of crushing are clogged between a bottom plate and a crusher, a locking of the bottom plate that may ensue is automatically released in a self-propelled crushing machine. The machine comprises a feeder hydraulic motor (54) for reciprocating the bottom plate of a hopper and a feeder valve (50) for supplying a first port (54a) and a second port (54b) of the feeder hydraulic motor (54) with a pressurized discharged fluid from a hydraulic pump. The feeder valve (50) takes a first position (B) upon a first solenoid (55) thereof being electrically energized and takes a second position (C) upon a second solenoid (56) thereof being electrically energized. a keep relay (59) electrically energizes the first solenoid (55) and the second solenoid (56) by passing an electric current through each of them, and a first pressure switch (57) and a second pressure switch (58) are turned on when a pressure of the first port (54a) and a pressure of the second port (54b) exceeds a set pressure, respectively.Type: GrantFiled: August 4, 1995Date of Patent: December 3, 1996Assignee: Kabushiki Kaisha Komatsu SeisakushoInventors: Yukio Tamura, Satoru Koyanagi, Yasutaka Nishida, Toru Nakayama, Masaho Yamaguchi
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Patent number: 5478520Abstract: A process and apparatus for effecting injection molding of plastic resin products on an injection molding apparatus including a metal mold composed of a slidable mold element and a fixed mold element defining together the mold cavity, an actuator for sliding the slidable mold element and an injection nozzle for adjusting the nozzle flow path section, which comprises a first molding step of injecting a molten resin into the mold cavity which has been preset by the slidable mold element so as to include a post-compression margin to be compressed afterwards in a second molding step, to effect the injection under a reduced molding pressure, while causing a temperature elevation and, thus, a viscosity reduction of the molten resin, until the mold cavity has been filled up, and a second molding step of compressing the resin so charged in the mold cavity by operating the slidable mold element to compress the charged resin to compensate the post-compression margin, so as to allow an effective pressing force to be impType: GrantFiled: October 11, 1994Date of Patent: December 26, 1995Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Masayoshi Kasai, Hideo Kuroda, Yukio Tamura, Yoshio Shikase, Kouji Kubota
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Patent number: 5476227Abstract: In a self-propelled crushing machine mounting an operator's platform (13), a hopper, (11) a crusher (8) coupled with the hopper and a driving power source (10) on a vehicular chassis (1) having a traveling device (19), the crusher (8) is provided at a longitudinally intermediate position of the vehicular chassis (1), the hopper (11) is located at the front side of the crusher, the driving power source (10) is located at the rear side of the crusher, the operator's platform (13) is located at one lateral side of the crusher, and a motor (24) for crusher is located at the other lateral side of the crusher. By this, the positions of the hopper (11), the engine (10) and the motor (24) can be low so that the overall height of the crushing machine can be low so as not to cause a problem in transportation by loading on the rear chassis of the truck.Type: GrantFiled: April 22, 1994Date of Patent: December 19, 1995Assignee: Kabushiki Kaisha Komatsu SeisakushoInventors: Yukio Tamura, Yasutaka Nishida
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Patent number: 5439434Abstract: A simple and efficient tool exchanger device is presented. The device has a pair of swing arms (8, 9), and each swing arm is provided with a set of grippers (11, 12) for holding a tool bit. The positions of the swing arms (8, 9) are separated by 90 degree so that they will not interfere with each other during the swinging motion. One driving device (2) is provided to operate both swing arms (8, 9) and operate the gripper devices (11, 12). The swing arm (8) rotates upwards to remove a used tool bit (10) from the machining shaft (21) of a machining center and the other swing arm (9) is rotated downwards to install a new tool bit (10') in the vacated machining shaft in a single simultaneous step.Type: GrantFiled: May 6, 1994Date of Patent: August 8, 1995Assignee: Niigata Engineering Co., Ltd.Inventors: Kyuichi Sato, Yukio Tamura
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Patent number: 5413475Abstract: In a serial two-stage extruder, the first-stage extruder has a screw including a feed screw section having a length within a range of 5 to 9 the major diameter thereof, a mixing screw section having a hexagonal cross section and a pitch of 1 to 3 times the major diameter thereof, and a metering screw section having a screw groove of an appropriate depth. The second-stage extruder includes an extruding screw and a barrel. The extruding screw has a screw groove of an appropriate depth and a dulmage formed at the tip end of the screw. The dulmage has a plurality of fins cooperating with fins of the barrel. Alteratively, in the second-stage extruder, the dulmage may have a plurality of axially spaced stages of fins. Configurations of the fins in each respective stage are identical but various characteristics of the fins vary from stage to stage. In this case, the barrel does not have fins.Type: GrantFiled: March 1, 1993Date of Patent: May 9, 1995Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Yoshinori Murata, Yukio Goto, Yukio Tamura, Ryoji Mouri, Toshio Miki, Masaki Ishikawa
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Patent number: 5393213Abstract: In a serial two-stage extruder, the first-stage extruder has a screw including a feed screw section having a length within a range of 5 to 9 the major diameter thereof, a mixing screw section having a hexagonal cross section and a pitch of 1 to 3 times the major diameter thereof, and a metering screw section having a screw groove of an appropriate depth. The second-stage extruder includes an extruding screw and a barrel. The extruding screw has a screw groove of an appropriate depth and a dulmage formed at the tip end of the screw. The dulmage has a plurality of fins cooperating with fins of the barrel. Alteratively, in the second-stage extruder, the dulmage may have a plurality of axially spaced stages of fins. Configurations of the fins in each respective stage are identical but various characteristics of the fins vary from stage to stage. In this case, the barrel does not have fins.Type: GrantFiled: November 1, 1993Date of Patent: February 28, 1995Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Yoshinori Murata, Yukio Goto, Yukio Tamura, Ryoji Mouri
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Patent number: 5118756Abstract: When obtaining microcapusles by covering a hydrophobic material with an aminoaldehyde polycondensation product as a wall-forming material in an acidic aqueous medium containing an anionic water-soluble polymer, a microcapsule slurry having a high solid content and low viscosity can be obtained by using as the anionic water-soluble polymer a multi-component copolymer consisting as essential monomer components thereof of at least three types of acrylic monomers selected respectively from (A) acrylic acid and/or methacrylic acid, (B) acrylonitrile and/or methacrylonitrile and (C) an acrylamidoalkylsulfonic acid and/or sulfoalkyl acrylate. Over a wide pH range, the microcapsule slurry obtained in accordance with this invention undergoes little viscosity changes and exhibits neither destruction of its dispersed state nor coagulating tendency. Resulting microcapsules have a sharp particle size distribution and are equipped with dense wall films.Type: GrantFiled: January 25, 1991Date of Patent: June 2, 1992Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Makoto Asano, Kiyoharu Hasegawa, Yukio Tamura, Yoshihiro Oono
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Patent number: 5004352Abstract: A plasticizing screw for an injection molding machine or the like having one or more lands in a crest portion of a screw flight to prevent the screw flight from coming into contact with a cylinder wall surface when the plasticizing screw is rotated during a molding operation. The land has a smaller diameter than that of a crest portion of the screw flight and is provided at the screw flight crest portion either between leading and trailing surfaces of the screw flight or extending from the leading edge of the screw flight. The land can also be provided as a plurality of circumferentially spaced-apart lands on the side of a front surface of the screw flight, or provided at a central portion between the leading and trailing surfaces of the screw flight.Type: GrantFiled: May 23, 1989Date of Patent: April 2, 1991Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Yukio Tamura, Kiyoshi Kinoshita, Tetsuo Uwaji, Takashi Mizuno
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Patent number: 4710659Abstract: In the rotor of a magneto generator, which has a magnet for generating electric power, the mechanical strength of the rotor is born by a metal core, and the metal core is connected to a resin molded disk by insert molding. The rotor is light and can bear the centrifugal force of high-speed revolution.Type: GrantFiled: August 18, 1986Date of Patent: December 1, 1987Assignee: Sawafuji Electric Co., Inc.Inventors: Masami Takano, Yukio Tamura