Patents by Inventor Yasushi Takeuchi

Yasushi Takeuchi 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: 9964943
    Abstract: When a command for outputting a movement amount at a specific reference value is included in a command block, a numerical controller which controls a position of a control axis in synchronization with a reference value by using tabular data registers the reference value and the movement amount of the command in a shift table while associating the reference value with the movement amount. Then, when the current reference value reaches the reference value registered in the shift table, the numerical controller superposes the movement amount of the control axis that is associated with the reference value in the shift table on a distributed movement amount to the control axis, and outputs the superposed movement amount as a movement amount of the control axis.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: May 8, 2018
    Assignee: FANUC Corporation
    Inventors: Akira Kanemaru, Yasushi Takeuchi
  • Patent number: 9964940
    Abstract: A numerical controller performs cross-rail axis control that distributes moving amount to a first and second axes based on a command to a virtual axis. If a block of a program that is read out contains a fast feed command to the virtual axis for moving a tool to a cutting feed start point, the numerical controller distributes a moving amount commanded by the fast feed command to the first axis and the second axis. Further, the moving amount commanded by the fast feed command is distributed to the first axis and the second axis so that movement of the virtual axis commanded by a cutting feed command that follows the fast feed command in the program can be achieved by movement of only the first axis.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: May 8, 2018
    Assignee: FANUC CORPORATION
    Inventors: Yasushi Takeuchi, Makoto Suzuki, Motohiko Ito
  • Publication number: 20180056317
    Abstract: A support structure for a suspended injector includes a suspended injector having a tubular vertical portion extending in a vertical direction, one or more chamfered portions formed by chamfering an outer peripheral surface near an upper end of the tubular vertical portion, a pair of holding members each having a flat surface formed on an inner peripheral surface of each of the pair of holding members to engage with each of the chamfered portions, each of the pair of holding members holding the tubular vertical portion of the suspended injector by sandwiching the tubular vertical portion of the suspended injector from both sides each of the pair of holding members, and a support structure part configured to fixedly support the pair of holding members, and configured to suspend and support the suspended injector.
    Type: Application
    Filed: August 24, 2017
    Publication date: March 1, 2018
    Inventors: Yuya SASAKI, Kiichi TAKAHASHI, Yasushi TAKEUCHI
  • Patent number: 9904277
    Abstract: A numerical controller configured for operation based on tabular data identifies a control command, calculates an operating time to achieve a target state for the control command, determines a time, an axis position, or a spindle position, which serves as a reference for the start of the operation, and starts the operation.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: February 27, 2018
    Assignee: FANUC Corporation
    Inventors: Akira Kanemaru, Yasushi Takeuchi
  • Patent number: 9897940
    Abstract: In the present invention, an image forming apparatus using a method of replacing a developer is configured such that an immobile area in which the heights of a discharge passage and a conveyance passage are changed on the upstream side of a returning screw is filled. This causes the immobile area of the developer to be unlikely to occur and accordingly suppresses formation of a toner stain image due to an aggregation toner, enabling stable image formation over a long period of time.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: February 20, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takanori Iida, Yusuke Ishida, Yasushi Takeuchi, Toshiyuki Yamada
  • Patent number: 9851670
    Abstract: When ending image forming, a state is realized where charging by a charging roller is stopped (charging bias off) and also applying DC voltage at a developing device is stopped (developing bias DC off). In this state, AC voltage is applied to the developing device (developing bias AC on), thereby adhering toner to the surface of a photosensitive drum and forming interposing toner. Driving of the photosensitive drum and an intermediate transfer belt is then stopped in the state with the interposing toner interposed between the photosensitive drum and intermediate transfer belt.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: December 26, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yasushi Takeuchi, Takayuki Ganko, Koji Arimura, Yusuke Ishida, Takanori Iida, Toshiyuki Yamada, Daisuke Makino, Taisuke Matsuura
  • Patent number: 9841746
    Abstract: A numerical controller has a first axis (reference axis) and a second axis (superimposed axis), and performs superimposed control which superimposes a movement amount of the reference axis on a movement amount of the superimposed axis, and thereby controls the movement of the superimposed axis. The numerical controller controls an acceleration start time of the axis to be accelerated, in a superimposition interval in which the reference axis is accelerated and the superimposed axis is decelerated (or reference axis is decelerated and superimposed axis is accelerated). After the axis to be decelerated is sufficiently decelerated, the axis to be accelerated is accelerated, and a moving speed of the superimposed axis does not exceed a speed limit of a machine in an acceleration/deceleration interval.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: December 12, 2017
    Assignee: FANUC CORPORATION
    Inventors: Kouhei Irie, Akira Kanemaru, Yasushi Takeuchi
  • Publication number: 20170299984
    Abstract: A developing device includes a developing container, a developing sleeve, a magnet and grooves provided at a surface of the sleeve and formed along a direction crossing a circumferential direction of the sleeve. In a cross-section, each of the grooves is formed by a flat bottom portion contacting a carrier particle and a pair of side surface portions provided in both sides of the flat bottom portion with respect to the circumferential direction of the sleeve and satisfies the following relationship: r<w<2r, 2×r<L, and r/2?s<2r. In the above, r is a volume-average particle size of the carrier particles, w is a length of the flat bottom portion, L is a width between the side surface portions at the surface of the sleeve, and s is a depth of each of the grooves.
    Type: Application
    Filed: June 28, 2017
    Publication date: October 19, 2017
    Inventors: Yusuke Ishida, Takanori Iida, Yasushi Takeuchi, Toshiyuki Yamada, Shiro Higashikozono, Hiroto Kakinuma, Toshiya Kobayashi
  • Publication number: 20170241018
    Abstract: A film deposition apparatus includes a chamber and a turntable provided in the chamber. The turntable includes a concave portion in its upper surface. A bottom portion of the concave portion has a through hole. A substrate supporting member is detachably placed on the concave portion so that a lower surface thereof is exposed from the through hole, and includes a substrate receiving portion. A drive mechanism moves up and down and rotates the turntable. A rotary unit rotatable by air is provided under the turntable. An air supply unit is provided. A controller causes the drive mechanism to rotate and move down the turntable so that the rotary unit supports the exposed lower surface of the substrate supporting member. The controller causes the air supply unit to supply air to the rotary unit so that the substrate supporting member rotates a predetermined angle relative to the turntable.
    Type: Application
    Filed: February 16, 2017
    Publication date: August 24, 2017
    Inventors: Katsuhiko OYAMA, Kiichi TAKAHASHI, Yasushi TAKEUCHI, Katsuyoshi AIKAWA
  • Patent number: 9733594
    Abstract: A developing device includes a developing container, a developing sleeve, a magnet and grooves provided at a surface of the sleeve and formed along a direction crossing a circumferential direction of the sleeve. In a cross-section, each of the grooves is formed by a flat bottom portion contacting a carrier particle and a pair of side surface portions provided in both sides of the flat bottom portion with respect to the circumferential direction of the sleeve and satisfies the following relationship: r<w<2r, 2×r<L, and r/2?s<2r. In the above, r is a volume-average particle size of the carrier particles, w is a length of the flat bottom portion, L is a width between the side surface portions at the surface of the sleeve, and s is a depth of each of the grooves.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: August 15, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yusuke Ishida, Takanori Iida, Yasushi Takeuchi, Toshiyuki Yamada, Shiro Higashikozono, Hiroto Kakinuma, Toshiya Kobayashi
  • Publication number: 20170211181
    Abstract: A film deposition apparatus for sequentially supplying reaction gases, which mutually react, into a chamber to deposit a film on a substrate includes a turntable rotatable and including a concave portion on an upper surface, a bottom portion of the concave portion having a through hole, a substrate supporting member attachable to and detachable from the concave portion, an upper surface of the substrate supporting member mounting the substrate, a lower surface of the substrate supporting member having a first protruding portion, a drive mechanism moving up and down the turntable and revolving the turntable, a lid member located lower than the turntable, an upper surface of the lid member having a second protruding portion, and a control unit revolving the turntable to cause the first protruding portion to contact the second protruding portion and cause the substrate supporting member to be spun a predetermined angle relative to the turntable.
    Type: Application
    Filed: January 24, 2017
    Publication date: July 27, 2017
    Inventors: Katsuhiko OYAMA, Kiichi TAKAHASHI, Yasushi TAKEUCHI, Katsuyoshi AIKAWA
  • Patent number: 9715225
    Abstract: Positions to be synchronized with a reference value are stored as command data in table format. Velocity changing points of a tool path designated by the table format data are calculated. Two intersection points between the tool path and a circle or a sphere having a designated radius and centered on the velocity changing point are connected by a smooth curved tool path according to a multidimensional function or the like. In this way, the table format data is corrected.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: July 25, 2017
    Assignee: FANUC Corporation
    Inventors: Takahiro Haraguchi, Yasushi Takeuchi
  • Patent number: 9679794
    Abstract: According to an embodiment of present disclosure, a spacer is provided. The spacer includes at least a protrusion formed to protrude from an outer periphery of the spacer. The protrusion serves to locate the spacer in place in a transfer mechanism configured to transfer the spacer when the spacer is fixed by the transfer mechanism in such a way that the protrusion comes in contact with the transfer mechanism, and configured to allow the spacer to rotate or move in case the spacer is deviated from a predetermined transfer position when the spacer is engaged with the transfer mechanism.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: June 13, 2017
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Katsuhiko Oyama, Yasushi Takeuchi
  • Publication number: 20170060061
    Abstract: When ending image forming, a state is realized where charging by a charging roller is stopped (charging bias off) and also applying DC voltage at a developing device is stopped (developing bias DC off). In this state, AC voltage is applied to the developing device (developing bias AC on), thereby adhering toner to the surface of a photosensitive drum and forming interposing toner. Driving of the photosensitive drum and an intermediate transfer belt is then stopped in the state with the interposing toner interposed between the photosensitive drum and intermediate transfer belt.
    Type: Application
    Filed: August 23, 2016
    Publication date: March 2, 2017
    Inventors: Yasushi Takeuchi, Takayuki Ganko, Koji Arimura, Yusuke Ishida, Takanori Iida, Toshiyuki Yamada, Daisuke Makino, Taisuke Matsuura
  • Publication number: 20170060032
    Abstract: In the present invention, an image forming apparatus using a method of replacing a developer is configured such that an immobile area in which the heights of a discharge passage and a conveyance passage are changed on the upstream side of a returning screw is filled. This causes the immobile area of the developer to be unlikely to occur and accordingly suppresses formation of a toner stain image due to an aggregation toner, enabling stable image formation over a long period of time.
    Type: Application
    Filed: August 29, 2016
    Publication date: March 2, 2017
    Inventors: Takanori Iida, Yusuke Ishida, Yasushi Takeuchi, Toshiyuki Yamada
  • Publication number: 20170060034
    Abstract: A developing device includes a developing container, a developing sleeve, a magnet and grooves provided at a surface of the sleeve and formed along a direction crossing a circumferential direction of the sleeve. In a cross-section, each of the grooves is formed by a flat bottom portion contacting a carrier particle and a pair of side surface portions provided in both sides of the flat bottom portion with respect to the circumferential direction of the sleeve and satisfies the following relationship: r<w<2r, 2×r<L, and r/2?s<2r. In the above, r is a volume-average particle size of the carrier particles, w is a length of the flat bottom portion, L is a width between the side surface portions at the surface of the sleeve, and s is a depth of each of the grooves.
    Type: Application
    Filed: August 9, 2016
    Publication date: March 2, 2017
    Inventors: Yusuke Ishida, Takanori Iida, Yasushi Takeuchi, Toshiyuki Yamada, Shiro Higashikozono, Hiroto Kakinuma, Toshiya Kobayashi
  • Publication number: 20170045872
    Abstract: A numerical controller performs cross-rail axis control that distributes moving amount to a first and second axes based on a command to a virtual axis. If a block of a program that is read out contains a fast feed command to the virtual axis for moving a tool to a cutting feed start point, the numerical controller distributes a moving amount commanded by the fast feed command to the first axis and the second axis. Further, the moving amount commanded by the fast feed command is distributed to the first axis and the second axis so that movement of the virtual axis commanded by a cutting feed command that follows the fast feed command in the program can be achieved by movement of only the first axis.
    Type: Application
    Filed: August 4, 2016
    Publication date: February 16, 2017
    Applicant: FANUC CORPORATION
    Inventors: Yasushi Takeuchi, Makoto Suzuki, Motohiko Ito
  • Patent number: 9568854
    Abstract: Removal control performing both first and second control in series is performed. The first control involves rotating the plurality of developer bearing members in a state in which the developing bias is applied to the plurality of developer bearing members so that force acting on opposite-polarity particles from a normally charged toner in the direction of moving the particles from the developer bearing member toward the image bearing member. The second control involves rotating one developer bearing member at a faster circumferential velocity than the other developer bearing member in a state in which the developing bias is applied to the plurality of developer bearing members or the developing bias is turned off so that the force acting on the opposite-polarity particles from the normally charged toner in the direction of moving the particles from the developer bearing member toward the image bearing member.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: February 14, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kosuke Takeuchi, Yasushi Takeuchi
  • Patent number: 9508914
    Abstract: Disclosed is a magnetic annealing apparatus including a carrier conveyance region and a workpiece conveyance region. The carrier conveyance region includes: a first mounting table where a carrier is disposed; second mounting tables where carriers convey workpieces from the carrier conveyance region to the workpiece conveyance region; a storage unit; and a carrier conveyance mechanism that performs carrying-out/carrying-in of the carriers. The workpiece conveyance region includes: an aligner device; a workpiece boat; a workpiece conveyance mechanism that conveys the workpieces from the carriers disposed on the second mounting tables to the workpiece boat via the aligner device; a heating unit; a magnetic field generating unit; and a transfer mechanism that transfers the workpieces held by the workpiece boat into the magnetic field generating unit.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: November 29, 2016
    Assignee: Tokyo Electron Limited
    Inventors: Yuji Ono, Toru Ishii, Makoto Saito, Mitsuru Obara, Yasushi Takeuchi
  • Publication number: 20160313720
    Abstract: A numerical controller controls a position of a control axis in synchronization with a reference value by using tabular data. When the numerical controller sequentially reads a command block from the tabular data and analyzes the command block so as to acquire a reference value and a coordinate value of a control point, the numerical controller outputs a reference value of the control point, which is shifted based on a shift amount specified by a shift command, in command blocks subsequent to the command block which includes the shift command, in a case where the shift command for shifting a reference value is included in the read command block.
    Type: Application
    Filed: April 14, 2016
    Publication date: October 27, 2016
    Inventors: Yoshifumi WAKE, Akira KANEMARU, Yasushi TAKEUCHI