Patents Assigned to Toshiba Kikai Kabushiki Kaisha
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Publication number: 20180169901Abstract: A conveyance device includes a plurality of holding mechanisms and one or more pressing mechanisms, the holding mechanisms each include a holder that holds a molding material and a holder movement mechanism that moves the holder, and the pressing mechanisms each include a pusher that comes into contact with and pushes the molding material and a pusher movement mechanism that moves the pusher.Type: ApplicationFiled: December 4, 2017Publication date: June 21, 2018Applicants: Toshiba Kikai Kabushiki Kaisha, Teijin LimitedInventors: Kazuhito Sato, Chiaki Shigematsu, Hodaka Yokomizo, Tetsuya Yoneda, Akihiko Obata
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Publication number: 20180154489Abstract: 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: ApplicationFiled: December 4, 2017Publication date: June 7, 2018Applicant: Toshiba Kikai Kabushiki KaishaInventors: Atsushi Tada, Takuma Miyamoto
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Publication number: 20180148805Abstract: A method for treating molten cast iron includes, performing an inoculation treatment to the molten cast iron, with the use of an inoculant containing: 15 to 80 wt % Si; either 80 to 100 wt % purity La or 80 to 100 wt % purity Ce as RE; Ca; Al; and the balance Fe with inevitable impurities, by adding the inoculant to the molten cast iron such that: the addition amount of La or Ce relative to the molten cast iron is 0.001 to 0.009 wt %; the addition amount of Ca relative to the molten cast iron is 0.001 to 0.02 wt %; and the addition amount of Al relative to the molten cast iron is 0.001 to 0.02 wt %.Type: ApplicationFiled: May 17, 2016Publication date: May 31, 2018Applicant: Toshiba Kikai Kabushiki KaishaInventors: Ryousuke FUJIMOTO, Shuhei HONMA
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Patent number: 9981316Abstract: 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: GrantFiled: July 1, 2015Date of Patent: May 29, 2018Assignee: TOSHIBA KIKAI KABUSHIKI KAISHAInventor: Atsushi Tada
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Publication number: 20180133786Abstract: A die casting machine includes a plurality of ejector pins capable of advancing and retracting together with respect to the internal portion of a die; an electric motor capable of driving the plurality of ejector pins; a position sensor capable of detecting the positions of the plurality of ejector pins; a force sensor capable of detecting the pressure which is given to the molding material inside the die by the plurality of ejector pins; a display device capable of displaying images, and a control device controlling the electric motor and display device. The control device includes a drive control part which controls the electric motor so as to generate a driving force making the plurality of ejector pins advance to the inside of the die after the start of injection and before die opening, and a display control part which controls the display device so as to display the position detected by a position sensor and the pressure detected by a force sensor along a common time axis.Type: ApplicationFiled: November 2, 2017Publication date: May 17, 2018Applicant: Toshiba Kikai Kabushiki KaishaInventors: Hiroki AMEZAWA, Satoru AIDA, Toshiaki TOYOSHIMA
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Publication number: 20180136629Abstract: 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: ApplicationFiled: November 14, 2017Publication date: May 17, 2018Applicant: Toshiba Kikai Kabushiki KaishaInventors: Takamichi Ito, Jun Fujita, Atsushi Tada, Hirohiko Matsuzaki
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Patent number: 9968998Abstract: An injection device has an injection cylinder for driving a plunger, a gas pressure type accumulator which supplies hydraulic fluid to the injection cylinder, a hydraulic fluid supply device which supplies the hydraulic fluid to the accumulator, a pressure sensor for detecting the gas pressure of the accumulator, and a control device which controls the hydraulic fluid supply device so as to suspend the supply of the hydraulic fluid when detection value of the pressure sensor reaches a predetermined target gas pressure before injection in the state where the hydraulic fluid is supplied from the hydraulic fluid supply device to the accumulator in a molding cycle.Type: GrantFiled: March 24, 2016Date of Patent: May 15, 2018Assignee: TOSHIBA KIKAI KABUSHIKI KAISHAInventors: Satoshi Tomioka, Ryusuke Nakata
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Publication number: 20180111307Abstract: An extruding unit, a forming roll unit and a thick portion forming mechanism are provided. The extruding unit has an ejecting slit which ejects sheet-shaped molten resin. The ejecting slit includes a standard gap portion and an enlarged gap portion. The standard gap portion is formed as a gap having a constant size. The enlarged gap portion is formed as a gap larger than the standard gap portion in a position corresponding to a thick portion. The thick portion forming mechanism forms one or several thick portions which are thicker than other portion, in the sheet-shaped molten resin continuously in the extrusion direction.Type: ApplicationFiled: November 21, 2017Publication date: April 26, 2018Applicant: Toshiba Kikai Kabushiki KaishaInventors: Koji Mizunuma, Yuusuke Uno, Mashiro Tanada
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Patent number: 9943990Abstract: A shape forming system according to one embodiment includes a mold assemblies; a heating unit; a pressing unit; a cooling unit; an isolation chamber configured to accommodate therein the heating unit, the pressing unit, and the cooling unit arranged in parallel with each other; and a conveyance unit configured to move the plurality of mold assemblies each of which is arranged on a plate provided in each of the heating unit, the pressing unit, and the cooling unit to thereby convey the mold assemblies in sequence.Type: GrantFiled: March 27, 2015Date of Patent: April 17, 2018Assignee: TOSHIBA KIKAI KABUSHIKI KAISHAInventors: Isao Matsuzuki, Yoshihiro Yamamoto, Ryuji Tanaka, Yu Murofushi
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Publication number: 20180093233Abstract: A conveyance portion, a barrier portion, and a path are provided at places of a screw main body in which a kneading portion is provided. In at least one of the places, the path is provided inside the screw main body, and includes an entrance and an exit. The entrance is opened to urge the raw materials having the conveyance limited by the barrier portion to increase pressure on the raw materials, to flow in the entrance. The raw materials flowing from the entrance flow through the path in the same direction as a conveyance direction of the conveyance portion.Type: ApplicationFiled: October 27, 2017Publication date: April 5, 2018Applicant: Toshiba Kikai Kabushiki KaishaInventors: Akiyoshi Kobayashi, Shigeyuki Fujii, Takafumi Sameshima
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Publication number: 20180093407Abstract: A barrel main body, a sleeve, and a fixing mechanism (a fastening hole and a fastening device) are provided. The barrel main body includes a barrel hole having a cylindrical shape and a slit dividing an inner circumferential surface of the barrel hole. The sleeve having a hollow cylindrical shape is removably incorporated into the barrel hole. The slit includes two cutout surfaces facing each other with a space between. The fixing mechanism brings the inner circumferential surface of the barrel hole into close contact with the sleeve without any gap by narrowing the space between the cutout surfaces and deforming the barrel main body.Type: ApplicationFiled: November 21, 2017Publication date: April 5, 2018Applicant: Toshiba Kikai Kabushiki KaishaInventors: Shozo Suzuki, Masatoshi Ohara, Yasuhiro Maekawa
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Publication number: 20180093234Abstract: At a part of the screw main body at which the kneading portion is provided, conveyance portions, a barrier portion and a path are provided at a plurality of places. At least one of the places, the path is provided inside the screw main body, and includes an entrance and an exit. The entrance is opened in such a manner that the raw material whose pressure is enhanced by being restricted in conveyance by the barrier portion flows into the entrance. The path is formed in such a manner that the raw material flowing into the path from the entrance flows toward the exit in a direction opposite to the direction of conveyance.Type: ApplicationFiled: October 27, 2017Publication date: April 5, 2018Applicant: Toshiba Kikai Kabushiki KaishaInventors: Akiyoshi Kobayashi, Shigeyuki Fujii, Takafumi Sameshima
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Patent number: 9929317Abstract: Provided is a deep ultraviolet LED with a design wavelength ?, including an Al reflecting electrode layer, an ultrathin metal layer, and a transparent p-AlGaN contact layer that are sequentially arranged from a side opposite to a substrate, and a photonic crystal periodic structure provided in the range of the thickness direction of the transparent p-AlGaN contact layer. The photonic crystal periodic structure has a photonic band gap.Type: GrantFiled: July 29, 2015Date of Patent: March 27, 2018Assignees: MARUBUN CORPORATION, TOSHIBA KIKAI KABUSHIKI KAISHA, RIKEN, ULVAC, INC., TOKYO OHKA KOGYO CO., LTD.Inventors: Yukio Kashima, Eriko Matsuura, Mitsunori Kokubo, Takaharu Tashiro, Takafumi Ookawa, Hideki Hirayama, Noritoshi Maeda, Masafumi Jo, Ryuichiro Kamimura, Yamato Osada, Satoshi Shimatani
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Patent number: 9929311Abstract: A semiconductor light emitting element with a design wavelength of ?, comprising a photonic crystal periodic structure having two structures with different refractive indices at each of one or more interfaces between layers that form the light emitting element. The period a and the radius R that are parameters of each of the one or more periodic structures and the design wavelength ? satisfy Bragg conditions. The ratio (R/a) between the period a and the radius R is a value determined so that a predetermined photonic band gap (PBG) for TE light becomes maximum for each periodic structure. The parameters of each periodic structure are determined so that light extraction efficiency of the entire semiconductor light emitting element with respect to light with the wavelength ? becomes maximum as a result of conducting a simulation analysis with a FDTD method using as variables the depth h of the periodic structure that is of greater than or equal to 0.Type: GrantFiled: July 16, 2014Date of Patent: March 27, 2018Assignees: MARUBUN CORPORATION, TOSHIBA KIKAI KABUSHIKI KAISHA, RIKEN, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE & TECHNOLOGY, ULVAC, INC., TOKYO OHKA KOGYO CO., LTD.Inventors: Yukio Kashima, Eriko Matsuura, Mitsunori Kokubo, Takaharu Tashiro, Takafumi Ookawa, Hideki Hirayama, Sung Won Youn, Hideki Takagi, Ryuichiro Kamimura, Yamato Osada, Satoshi Shimatani
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Publication number: 20180071973Abstract: A clip-type stretching apparatus includes a main link device, a sub-link device, a standard rail, a pitch setting rail, and drive sprockets, the main link device including a first clip support member having a clip, the sub-link device having the clip, the standard rail defining a circulation route of the clip, the pitch setting rail setting a pitch between the first clip support members by a distance from the standard rail, the drive sprockets engaged with a drive roller provided in a first shaft member of the first clip support member and causing the first clip support member to travel.Type: ApplicationFiled: November 16, 2017Publication date: March 15, 2018Applicant: Toshiba Kikai Kabushiki KaishaInventors: Yoshihisa Ikeda, Michihiko Saito, Yuichi Watanabe, Hiroaki Kato
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Patent number: 9914175Abstract: The invention is a boring machine including: a guide rail linearly extending in one direction; a main part slidably mounted on the guide rail; a sleeve extending from the main part in a plane substantially parallel to the guide rail; and a rotatable face plate mounted at a distal end of the sleeve; wherein a deflection-compensating wedge plate is provided between the distal end of the sleeve and the rotatable face plate.Type: GrantFiled: July 27, 2012Date of Patent: March 13, 2018Assignee: TOSHIBA KIKAI KABUSHIKI KAISHAInventors: Tomoyasu Kato, Yutaka Asanome, Mamoru Akiyama
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Patent number: 9914261Abstract: A transfer device that transfers a fine transfer pattern formed on a master mold to a molded material, includes a first transfer unit that transfers the fine transfer pattern formed on the master mold to a replica mold made from a material that transmits light; and a second transfer unit that transfers a fine transfer pattern formed on the replica mold by the first transfer unit to the molded material.Type: GrantFiled: August 30, 2013Date of Patent: March 13, 2018Assignee: Toshiba Kikai Kabushiki KaishaInventors: Yuki Sugiura, Mitsunori Kokubo, Shigeru Fujiwara, Hidetoshi Kitahara, Yu Murofushi, Isao Matsuzuki, Takato Baba, Toru Suzuki
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Publication number: 20180050433Abstract: 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: ApplicationFiled: March 9, 2016Publication date: February 22, 2018Applicant: TOSHIBA KIKAI KABUSHIKI KAISHAInventors: KATSUMI HIRABAYASHI, ATSUSHI TADA
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Patent number: 9884364Abstract: A die casting machine has a clamping device and an injection device. The clamping device has a fixed die plate which holds a fixed die, a movable die plate which holds a moving die, an electrically operated die opening and closing-use driving device which moves the movable die plate in a die opening and closing direction, and a clamping cylinder which generates a clamping force. The injection device has a sleeve, a plunger which capable of sliding in the sleeve, an electrically operated injection-use driving device which drives the plunger at least at the time of low speed injection, and an injection cylinder which drives the plunger at least at the time of high speed injection.Type: GrantFiled: July 1, 2015Date of Patent: February 6, 2018Assignee: TOSHIBA KIKAI KABUSHIKI KAISHAInventors: Yuji Abe, Saburo Noda, Toshiaki Toyoshima
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Publication number: 20180029272Abstract: A mold clamping apparatus according to the present invention includes: a fixed platen to which one mold of a pair of molds is to be mounted; a movable platen which is disposed opposite the fixed platen and to which the other mold is to be mounted; a pressure-receiving platen connected to the fixed platen via tie bars; a mold opening/closing mechanism including a toggle link mechanism for opening/closing and clamping the molds by moving the movable platen back and forth; a drive mechanism including a servo motor for driving the mold opening/closing mechanism; and a control device for controlling the servo motor, wherein the control device includes an acceleration/deceleration adjustment section capable of adjusting an acceleration time, a deceleration time and a target speed of the servo motor during a mold clamping operation.Type: ApplicationFiled: February 12, 2016Publication date: February 1, 2018Applicant: Toshiba Kikai Kabushiki KaishaInventors: HIDEAKI TOBITA, KEISUKE MORI