Patents by Inventor Yoshitaka Aoyama

Yoshitaka Aoyama 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).

  • Publication number: 20190134736
    Abstract: Provided is apart stopping/passing unit for apart including a unit main body having a part passage, an opening/closing member configured to open and close the part passage, and an attracting mechanism. The opening/closing member includes a stopper surface for stopping a part and a passing hole for allowing the part to pass therethrough. The attracting mechanism is configured to position the part by an attracting force when the stopper surface takes a part stopping position, and to allow the part to pass by elimination of an attraction force when the passing hole takes a part passing position.
    Type: Application
    Filed: April 28, 2017
    Publication date: May 9, 2019
    Inventors: Shoji AOYAMA, Yoshitaka AOYAMA
  • Patent number: 10132761
    Abstract: A method capable of constructing an accurate three-dimensional image is offered. The method comprises the step (S10) of obtaining a first series of tilted images which are constituted by electron microscope images or elemental mapping images of a sample (S) at different tilt angles and which have been obtained by tilting the sample in angular increments, the step (S14) of obtaining a second series of tilted images which are constituted by electron microscope images or elemental mapping images of the sample at different tilt angles and which have been obtained by rotating the sample about an axis (P) perpendicular to a surface (Sf) of the sample and then tilting the sample in angular increments, and the step (S16) of constructing the three-dimensional image on the basis of the first and second series of tilted images.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: November 20, 2018
    Assignee: JEOL Ltd.
    Inventor: Yoshitaka Aoyama
  • Publication number: 20180036829
    Abstract: A sliding member integrated with a guide pin is inserted into a guide hole of an electrode main body. An elastic ring is integrated with the guide pin under a state in which the guide pin passes through the elastic ring. A portion of the sliding member has a pressurizing end surface configured to press the elastic ring against an inner end surface of the guide hole. When the pressurizing end surface presses the elastic ring against the inner end surface, flow of the cooling air is interrupted. When the elastic ring is away from the inner end surface, the cooling air is allowed to flow.
    Type: Application
    Filed: July 24, 2017
    Publication date: February 8, 2018
    Inventors: Jyunnichi SUZUKI, Takami ARAMAKI, Kenji NINOMIYA, Hiromi KUDOU, Yoshitaka AOYAMA, Shoji AOYAMA
  • Publication number: 20170088365
    Abstract: A lower portion is formed in a vicinity of an end portion of a bottom member of a storage container. A lift member configured to lift parts kept on standby on the lower portion is arranged in a state of being movable up and down along an inner wall of the storage container. A transport unit configured to transport the part, which is lifted and transferred thereto by the lift member, to a target position is arranged, and a position at which the parts are to be transferred to the transport unit is set in a vicinity of an upper position of the lift member.
    Type: Application
    Filed: May 20, 2015
    Publication date: March 30, 2017
    Inventors: Shoji AOYAMA, Yoshitaka AOYAMA
  • Publication number: 20170087660
    Abstract: Provided is an electric resistance welding electrode, which comprises an insulated cylinder, an electrode slidably inserted into the insulated cylinder, an urging member configured to apply an advance force to the insulated cylinder, and a stopper configured to set an advance distance of an insulated end surface of the insulated cylinder with respect to an pressing surface of the electrode to a predetermined distance. A receiving recessed portion for receiving a component is defined by the pressing surface retreated by the predetermined distance with respect to the insulated end surface and an inner surface of the insulated cylinder. The electric resistance welding electrode performs welding in one of welding modes consisting of a component welding mode and a spot welding mode.
    Type: Application
    Filed: April 27, 2016
    Publication date: March 30, 2017
    Inventors: Kohei HISADA, Yoshitaka AOYAMA, Shoji AOYAMA
  • Patent number: 9321121
    Abstract: A device is provided in which a pressing electrode (19, 105) is advanced toward a steel plate component (48, 131) to press a welding projection (4) of a shaft-shaped component (1) against the steel plate component (48, 131), so that the shaft-shaped component (1) is electric-resistance-welded to the steel plate component (48, 131). Pressing force accumulating means (22, 128) for accumulating the pressing force of the pressing electrode (19, 105) is disposed between a pressing member (17, 106) and a pressed member (18, 121). Detection means (54, 113, 3) activated when the pressing member (17, 106) is located at a predetermined position is provided to apply welding current flowing to the electrode, and pressing force adjusting means (55, 123) for adjusting the activation position of the detection means (54, 113, 3) is provided.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: April 26, 2016
    Inventors: Yoshitaka Aoyama, Shoji Aoyama
  • Publication number: 20160079031
    Abstract: A method capable of constructing an accurate three-dimensional image is offered. The method comprises the step (S10) of obtaining a first series of tilted images which are constituted by electron microscope images or elemental mapping images of a sample (S) at different tilt angles and which have been obtained by tilting the sample in angular increments, the step (S14) of obtaining a second series of tilted images which are constituted by electron microscope images or elemental mapping images of the sample at different tilt angles and which have been obtained by rotating the sample about an axis (P) perpendicular to a surface (Sf) of the sample and then tilting the sample in angular increments, and the step (S16) of constructing the three-dimensional image on the basis of the first and second series of tilted images.
    Type: Application
    Filed: August 26, 2015
    Publication date: March 17, 2016
    Inventor: Yoshitaka Aoyama
  • Patent number: 8872529
    Abstract: Provided is a component detection device, which is installable on component processing means which performs a predetermined operation to a conductive component interposed between one conductive member and another conductive member, the component detection device comprising a detection circuit (41) for distinguishing between the conductive component and a conductive foreign matter interposed between the one conductive member and the another conductive member, the detection circuit (41) being electrically connected between the one conductive member and the another conductive member, wherein the detection circuit (41) comprises: a reference voltage generating circuit section (43) for generating a reference voltage based on an input voltage; a voltage comparing circuit section (44) for comparing between the reference voltage and a detection voltage input from a detection terminal; and a sensitivity adjusting circuit section (45) for adjusting the detection voltage so that, when the conductive component is interpo
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: October 28, 2014
    Assignee: Yoshitaka Aoyama
    Inventors: Yoshitaka Aoyama, Shoji Aoyama
  • Patent number: 8552332
    Abstract: Provided are a bolt for projection welding and a method of welding the same in which a portion of large fusion depth is formed in a small region and in which junction to a steel sheet part is secured in other regions, thereby realizing high weld strength and stable junction state. A bolt includes a shaft part, an enlarged diameter part, and a fusion bonding projection, the fusion bonding projection including an initial fusion part having at an end surface thereof a tapered portion and a main fusion part continuous with the initial fusion part.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: October 8, 2013
    Inventors: Yoshitaka Aoyama, Shoji Aoyama
  • Patent number: 8338738
    Abstract: An apparatus for welding a projection bolt includes a control unit which outputs an actuating signal for an advancing pressurizing means in response to at least a signal indicating completion of insertion of the projection bolt into a receiving hole and a signal indicating completion of movement of a steel plate part. Electrodes are provided for welding the projection bolt, and advancement of the electrodes from a retracted state is started in response to the actuating signal.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: December 25, 2012
    Assignee: Yoshitaka Aoyama
    Inventors: Yoshitaka Aoyama, Shoji Aoyama
  • Patent number: 8336716
    Abstract: A parts feeding apparatus feeds projection bolts into a receiving hole in an electrode and includes an excessively long parts detecting device which detects projection bolts having excessively long shanks. The excessively long parts detecting device has a pass control member fixed between a pair of plates of the delivery section for engaging an excessively long shank and a control plate which prevents the projection bolt having the excessively long shank from projecting upward so as to lock the projection bolt in cooperation with the pass control member. A feed rod advances to a predetermined position at which the shanks of the projection bolts are inserted into the receiving hole, and a spacing between the holding head and a receiving hole when the feed rod is in the predetermined position is set to prevent projection bolts having an excessively short shank from reaching the receiving hole.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: December 25, 2012
    Assignee: Yoshitaka Aoyama
    Inventors: Yoshitaka Aoyama, Shoji Aoyama
  • Publication number: 20120299577
    Abstract: Provided is a component detection device, which is installable on component processing means which performs a predetermined operation to a conductive component interposed between one conductive member and another conductive member, the component detection device comprising a detection circuit (41) for distinguishing between the conductive component and a conductive foreign matter interposed between the one conductive member and the another conductive member, the detection circuit (41) being electrically connected between the one conductive member and the another conductive member, wherein the detection circuit (41) comprises: a reference voltage generating circuit section (43) for generating a reference voltage based on an input voltage; a voltage comparing circuit section (44) for comparing between the reference voltage and a detection voltage input from a detection terminal; and a sensitivity adjusting circuit section (45) for adjusting the detection voltage so that, when the conductive component is interpo
    Type: Application
    Filed: July 1, 2010
    Publication date: November 29, 2012
    Inventors: Yoshitaka Aoyama, Shoji Aoyama
  • Publication number: 20120132624
    Abstract: A device is provided in which a pressing electrode (19, 105) is advanced toward a steel plate component (48, 131) to press a welding projection (4) of a shaft-shaped component (1) against the steel plate component (48, 131), so that the shaft-shaped component (1) is electric-resistance-welded to the steel plate component (48, 131). Pressing force accumulating means (22, 128) for accumulating the pressing force of the pressing electrode (19, 105) is disposed between a pressing member (17, 106) and a pressed member (18, 121). Detection means (54, 113, 3) activated when the pressing member (17, 106) is located at a predetermined position is provided to apply welding current flowing to the electrode, and pressing force adjusting means (55, 123) for adjusting the activation position of the detection means (54, 113, 3) is provided.
    Type: Application
    Filed: July 16, 2010
    Publication date: May 31, 2012
    Inventors: Yoshitaka Aoyama, Shoji Aoyama
  • Publication number: 20110186483
    Abstract: A shaft-like parts feeding apparatus is disclosed, which includes a parts feeder (6) for delivering shaft-like parts (1), and a feed path extending from the parts feeder (6) to a point short of a feed rod (21), wherein a shaft-like part held by a holding head (1) of the feed rod (20) is inserted into a receiving hole (35) in an electrode (22). An excessively long parts detecting means which detects and removes excessively long parts (1A) longer than normal length is disposed in the parts feeder (6) or in the feed path, and the spacing between the receiving hole (35) and the holding head (20) with the feed rod (20) having stopped at a predetermined position after advancing, is set to an excessively short parts expelling spacing (L) which prevents excessively short parts (1C) shorter than normal length from reaching the receiving hole (35). Shaft-like parts of abnormal length are removed in the feed path extending from the parts feeder to the electrode by a system having a cooperative feature, i.e.
    Type: Application
    Filed: February 23, 2011
    Publication date: August 4, 2011
    Inventors: Yoshitaka AOYAMA, Shoji Aoyama
  • Patent number: 7965001
    Abstract: To drive an oscillator always at a stable and constant oscillation even if frequency and amplitude of a power supply voltage differ depending on a delivery destination of the oscillator, an oscillator drive control device (10), which generates a predetermined switching pattern by operating a switching element, and supplies an oscillation generation unit (7) of the oscillator with drive electric power for generating predetermined oscillation frequency and amplitude according to the switching pattern, includes: a voltage detection circuit (11) for detecting a power supply voltage unique to a delivery destination of the oscillator; a memory circuit (12) storing, in advance, a basic switching pattern adapted to an arbitrarily set reference voltage, and used for driving the oscillation generation unit (7) at proper oscillation frequency and amplitude; and an arithmetic processing circuit (13) for calculating a ratio of the detected voltage unique to the delivery destination detected by the voltage detection circui
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: June 21, 2011
    Inventors: Yoshitaka Aoyama, Shoji Aoyama
  • Publication number: 20110080227
    Abstract: To drive an oscillator always at a stable and constant oscillation even if frequency and amplitude of a power supply voltage differ depending on a delivery destination of the oscillator, an oscillator drive control device (10), which generates a predetermined switching pattern by operating a switching element, and supplies an oscillation generation unit (7) of the oscillator with drive electric power for generating predetermined oscillation frequency and amplitude according to the switching pattern, includes: a voltage detection circuit (11) for detecting a power supply voltage unique to a delivery destination of the oscillator; a memory circuit (12) storing, in advance, a basic switching pattern adapted to an arbitrarily set reference voltage, and used for driving the oscillation generation unit (7) at proper oscillation frequency and amplitude; and an arithmetic processing circuit (13) for calculating a ratio of the detected voltage unique to the delivery destination detected by the voltage detection circui
    Type: Application
    Filed: July 30, 2008
    Publication date: April 7, 2011
    Inventors: Yoshitaka Aoyama, Shoji Aoyama
  • Publication number: 20100059486
    Abstract: Provided are a welding method and a welding apparatus capable of appropriately starting the advancement of an electrode based on the positioning of a welding point on a steel plate part to which a projection bolt is to be welded and on the state of completion of feeding of the projection bolt to the electrode. A bolt (10) held by a feed rod (17) is inserted into a receiving hole (20) of an electrode (6), and an air blast is applied from a holding head (18) to complete the insertion of the bolt into the receiving hole (20). Then, the feed rod (17) is retracted. Subsequently, the electrode (6) is advanced to weld the bolt to a steel plate part (30) by electric resistance welding. In this case, the electrode (6) is advanced toward the steel plate part (30) in response to a signal generated upon insertion of the bolt and a signal generated after a welding point on the steel plate part (30) is adjusted. Subsequently, pressurization and energization are carried out.
    Type: Application
    Filed: February 19, 2008
    Publication date: March 11, 2010
    Inventors: Yoshitaka Aoyama, Shoji Aoyama
  • Publication number: 20100051591
    Abstract: Provided are an operation controller of an electrode and a control method therefor in electric resistance welding, which are capable of automatically inhibiting advancement of the electrode when an operating time period of a supply rod becomes abnormally longer. A part (1, 39) is supplied to the electrode by a supply rod (10), a steel plate part (4) is subjected to electric resistance welding, and there are provided a sensor means (27) which transmits an electrode advancing operation signal during restoring operation or at a time of completion of the restoring operation of the supply rod (10), a timer means (30) for judging whether the electrode advancing operation signal is transmitted at a timing within a predetermined time period or after elapse of the predetermined time period.
    Type: Application
    Filed: March 14, 2008
    Publication date: March 4, 2010
    Inventors: Yoshitaka Aoyama, Shoji Aoyama
  • Publication number: 20090261075
    Abstract: Provided are a bolt for projection welding and a method of welding the same in which a portion of large fusion depth is formed in a small region and in which junction to a steel sheet part is secured in other regions, thereby realizing high weld strength and stable junction state. A bolt includes a shaft part, an enlarged diameter part, and a fusion bonding projection, the fusion bonding projection including an initial fusion part having at an end surface thereof a tapered portion and a main fusion part continuous with the initial fusion part.
    Type: Application
    Filed: June 1, 2006
    Publication date: October 22, 2009
    Inventors: Yoshitaka Aoyama, Shoji Aoyama
  • Patent number: 7509994
    Abstract: A casting shakeout apparatus comprises: a first unit for vibrating a supporting member on which a casting is placed and a second unit for applying impact or vibration to the casting, wherein the second unit can move between two positions, one of which is an evacuation position for allowing the casting to be loaded and unloaded and a work position for applying impact or vibration.
    Type: Grant
    Filed: March 17, 2004
    Date of Patent: March 31, 2009
    Inventors: Yoshitaka Aoyama, Shoji Aoyama