Patents by Inventor Hisashi Harada

Hisashi Harada 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: 20230413567
    Abstract: A semiconductor memory device includes a stacked body, a first metal layer, and a first columnar body. The stacked body includes a plurality of gate electrode layers and a plurality of insulating layers. The plurality of gate electrode layers include a first gate electrode layer, and a second gate electrode layer having a length in a second direction intersecting a first direction that is shorter than that of the first gate electrode layer. The first metal layer is disposed at least on a first side with respect to a terrace portion of the first gate electrode layer. The first columnar body is disposed on the first side with respect to the terrace portion of the first gate electrode layer. The first columnar body includes a conductive portion extending in the first direction and penetrating the first metal layer to be connected to the terrace portion of the first gate electrode layer, and an insulator disposed at least between the first metal layer and the conductive portion.
    Type: Application
    Filed: February 28, 2023
    Publication date: December 21, 2023
    Applicant: Kioxia Corporation
    Inventors: Hideto TAKEKIDA, Hisashi HARADA
  • Publication number: 20230262983
    Abstract: According to one embodiment, a semiconductor memory device includes: a semiconductor layer arranged above a substrate in a first direction; a first interconnect layer between the substrate and the semiconductor layer; a second interconnect layer arranged adjacent to the first interconnect layer in a second direction; a plurality of memory pillars; and a first member between the first interconnect layer and the second interconnect layer. The semiconductor layer has, on a side of a second surface facing a first surface in contact with the first member, a first projecting portion projecting in the first direction and overlapping a part of an area in the first direction, the area being provided with the first interconnect layer and the first member.
    Type: Application
    Filed: September 13, 2022
    Publication date: August 17, 2023
    Applicant: Kioxia Corporation
    Inventors: Hisashi HARADA, Keisuke SUDA
  • Patent number: 11660660
    Abstract: Provided is a foundry sand supply device capable of collecting foundry sand at an arbitrary timing. The foundry sand supply device includes a bucket collecting the foundry sand, a bucket drive unit rotatably supporting the bucket and driving the bucket, and a moving unit moving the bucket drive unit close to and away from the foundry sand, and moving the bucket drive unit between a collecting position to collect the foundry sand and a supply position to supply the foundry sand.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: May 30, 2023
    Assignee: SINTOKOGIO, LTD.
    Inventors: Yuichi Ogura, Yasuaki Asaoka, Hisashi Harada
  • Patent number: 11305341
    Abstract: A mold shake-out system to suppress the effects of an excessive or insufficient water sprinkling amount in mold shake-out that separates a mold, into which castings have been poured, into castings and molding sand, the mold shake-out system including: a shake-out device that separates the castings and a mold into the castings and the molding sand; a water sprinkling portion that sprinkles water in the shake-out device; and a control device that controls the water sprinkling amount in the water sprinkling portion; the control device adjusting the water sprinkling amount on the basis of molding/pouring data including molding data regarding the mold into which castings have been poured and which is loaded into the shake-out device, pouring data regarding molten metal that forms the castings, and time data from when the molten metal is poured into the mold until when the mold is loaded into the shake-out device.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: April 19, 2022
    Assignee: SINTOKOGIO, LTD.
    Inventors: Yasuaki Asaoka, Hisashi Harada
  • Publication number: 20220055098
    Abstract: A casting mold molding machine includes a green sand mold molding sensor including a pressure sensor for evaluating moldability of a green sand mold molded by a casting mold molding machine, wherein the pressure sensor is embedded in a squeeze board or squeeze feet that compresses green sand.
    Type: Application
    Filed: November 3, 2021
    Publication date: February 24, 2022
    Applicant: SINTOKOGIO, LTD.
    Inventors: Takato ISHII, Hisashi HARADA, Yasuaki ASAOKA
  • Patent number: 11229946
    Abstract: A water supply and kneading system for green sand, including: a weighing hopper that stores green sand that has been weighed; a kneading machine that kneads the green sand and water; a sand loading means for releasing the green sand in the weighing hopper into the kneading machine, or shutting off the release; a water supply device that supplies water to the green sand in the kneading machine; a moisture sensor that includes a pair of electrodes and measures the moisture content of the green sand stored in the weighing hopper by measuring an electric potential difference between the electrodes; and a kneading control device that controls the amount of water supplied by the water supply device and controls the sand loading means on the basis of the output of the moisture sensor.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: January 25, 2022
    Assignee: SINTOKOGIO, LTD.
    Inventors: Yuichi Ogura, Hisashi Harada
  • Publication number: 20210402462
    Abstract: A green sand mold molding sensor that can measure the pressure applied to a parting plane of a green sand mold in order to determine the quality (casting mold strength) of a molded green sand mold. A green sand mold molding sensor including a pressure sensor for evaluating the molding properties of a green sand mold molded by a casting mold molding machine, wherein the pressure sensor is embedded in a plate having a model attached thereto.
    Type: Application
    Filed: September 10, 2021
    Publication date: December 30, 2021
    Applicant: SINTOKOGIO, LTD.
    Inventors: Takato ISHII, Yasuaki ASAOKA, Hisashi HARADA, Takehiro SUGINO
  • Publication number: 20210162494
    Abstract: A mold shake-out system to suppress the effects of an excessive or insufficient water sprinkling amount in mold shake-out that separates a mold, into which castings have been poured, into castings and molding sand, the mold shake-out system including: a shake-out device that separates the castings and a mold into the castings and the molding sand; a water sprinkling portion that sprinkles water in the shake-out device; and a control device that controls the water sprinkling amount in the water sprinkling portion; the control device adjusting the water sprinkling amount on the basis of molding/pouring data including molding data regarding the mold into which castings have been poured and which is loaded into the shake-out device, pouring data regarding molten metal that forms the castings, and time data from when the molten metal is poured into the mold until when the mold is loaded into the shake-out device.
    Type: Application
    Filed: July 13, 2018
    Publication date: June 3, 2021
    Applicant: SINTOKOGIO, LTD.
    Inventors: Yasuaki ASAOKA, Hisashi HARADA
  • Patent number: 10967422
    Abstract: A kneaded sand property adjusting system including: a kneading device; a kneaded sand storage hopper that stores kneaded sand; a molding device that molds the sand conveyed from the sand storage hopper; a control device that controls water injection until a property of the sand meets a kneaded sand target property; and kneaded sand amount measuring instruments that measure the amount of sand stored in storage hopper, wherein the control device stores the batch number of each kneaded batch and the kneaded sand property measured at the time of kneading, calculates the batch number of the kneaded batch that corresponds to the molding sand being loaded into the molding device by the kneaded sand amount measuring instruments, associates the property of the molding sand with the property stored on by the batch number that was calculated, and corrects the target property on the basis of the values of the properties.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: April 6, 2021
    Assignee: SINTOKOGIO, LTD.
    Inventors: Yuichi Ogura, Hisashi Harada
  • Publication number: 20210082949
    Abstract: According to one embodiment, a semiconductor memory device includes a first stacked body disposed between the belt-like portions and stacked a plurality of first conductive layers via a first insulating layer, a second stacked body disposed in a region in the first stacked body and stacked a plurality of second insulating layers via the first insulating layer, a first pillar extending in the first stacked body in a stacking direction of the first stacked body, and a plurality of second pillars extending in the stacking direction on both sides of the second stacked body facing the belt-like portions and arranged in the first direction, in which the second pillars each include a plate-like portion disposed at a height position of each of the first conductive layers, and the adjacent second pillars are connected to each other by the plate-like portion.
    Type: Application
    Filed: March 12, 2020
    Publication date: March 18, 2021
    Applicant: Kioxia Corporation
    Inventors: Hisashi HARADA, Ayaha HACHISUGA, Jun NISHIMURA, Wataru UNNO
  • Publication number: 20210060636
    Abstract: A casting mold molding device, a casting mold quality evaluation device, and a casting mold quality evaluation method are capable of evaluating the quality (casting mold strength) of a molded green sand mold without measuring a green sand mold by using a casting mold strength gauge each time a green sand mold is molded in one frame. A green sand mold molding sensor that, during molding of a green sand mold, measures a pressure value applied to a joining section between green sand introduced into a casting mold molding space and a plate having a model attached thereto; and a casting mold quality evaluation device that evaluates the quality of a molded green sand mold from the pressure value.
    Type: Application
    Filed: April 25, 2019
    Publication date: March 4, 2021
    Applicant: SINTOKOGIO, LTD.
    Inventors: Takato ISHII, Yasuaki ASAOKA, Hisashi HARADA, Takehiro SUGINO
  • Publication number: 20210053107
    Abstract: Provided is a foundry sand supply device capable of collecting foundry sand at an arbitrary timing. The foundry sand supply device includes a bucket collecting the foundry sand, a bucket drive unit rotatably supporting the bucket and driving the bucket, and a moving unit moving the bucket drive unit close to and away from the foundry sand, and moving the bucket drive unit between a collecting position to collect the foundry sand and a supply position to supply the foundry sand.
    Type: Application
    Filed: August 17, 2020
    Publication date: February 25, 2021
    Applicant: SINTOKOGIO, LTD.
    Inventors: Yuichi OGURA, Yasuaki ASAOKA, Hisashi HARADA
  • Patent number: 10930665
    Abstract: A semiconductor device of an embodiment includes a control circuit arranged on a substrate, a first conductive layer arranged on the control circuit and containing a first element as a main component, a multilayer structure arranged on the first conductive layer and configured such that multiple second conductive layers and multiple insulating layers are alternately stacked on each other, a memory layer penetrating the multilayer structure and reaching the first conductive layer at a bottom portion, a first layer arranged between the control circuit and the first conductive layer and containing the first element as a main component, and a second layer arranged between the control circuit and the first layer and containing, as a main component, a second element different from the first element.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: February 23, 2021
    Assignee: Toshiba Memory Corporation
    Inventors: Kosuke Horibe, Kei Watanabe, Toshiyuki Sasaki, Tomo Hasegawa, Soichi Yamazaki, Keisuke Kikutani, Jun Nishimura, Hisashi Harada, Hideyuki Kinoshita
  • Publication number: 20210031258
    Abstract: A casting mold molding device, a casting mold quality evaluation device, and a casting mold quality evaluation method that are capable of evaluating the quality of a molded green sand mold without measuring a green sand mold by using a casting mold strength gauge each time a green sand mold is molded in one flask. The device includes a green sand mold molding sensor that, during molding of a green sand mold, measures a pressure value applied to a joining section between green sand introduced into a casting mold molding space and a squeeze board or squeeze feet; and a casting mold quality evaluation device that evaluates the quality of a molded green sand mold from the pressure value.
    Type: Application
    Filed: April 25, 2019
    Publication date: February 4, 2021
    Applicant: SINTOKOGIO, LTD.
    Inventors: Takato ISHII, Hisashi HARADA, Yasuaki ASAOKA
  • Publication number: 20210031259
    Abstract: A green sand mold molding sensor including a pressure sensor for evaluating moldability of a green sand mold molded by a casting mold molding machine, wherein the pressure sensor is embedded in a squeeze board or squeeze feet that compresses green sand.
    Type: Application
    Filed: April 25, 2019
    Publication date: February 4, 2021
    Applicant: SINTOKOGIO, LTD.
    Inventors: Takato ISHII, Hisashi HARADA, Yasuaki ASAOKA
  • Publication number: 20200406344
    Abstract: A mold-shift detection device for upper and lower molds molded and assembled with each other by a flaskless molding machine, comprises: a first distance sensor measuring a distance by irradiating side surfaces of the upper and lower molds with light; a cylinder causing the first distance sensor to scan the side surfaces of the upper and lower molds; and a controller detecting a mold-shift between the upper and lower molds, based on a measurement result in a scan range.
    Type: Application
    Filed: December 6, 2018
    Publication date: December 31, 2020
    Applicant: SINTOKOGIO, LTD.
    Inventors: Kazuya KOJIMA, Yasuaki ASAOKA, Hisashi HARADA, Takato ISHII
  • Publication number: 20200376541
    Abstract: A green sand mold molding sensor that can measure the pressure applied to a parting plane of a green sand mold in order to determine the quality (casting mold strength) of a molded green sand mold. A green sand mold molding sensor including a pressure sensor for evaluating the molding properties of a green sand mold molded by a casting mold molding machine, wherein the pressure sensor is embedded in a plate having a model attached thereto.
    Type: Application
    Filed: April 25, 2019
    Publication date: December 3, 2020
    Applicant: SINTOKOGIO, LTD.
    Inventors: Takato ISHII, Yasuaki ASAOKA, Hisashi HARADA, Takehiro SUGINO
  • Publication number: 20200295016
    Abstract: A semiconductor memory device according to an embodiment includes first to third conductive layers, first and second pillars, first and second contacts, and first to third members. The first pillar penetrates the first and second conductive layers in a first area. A second pillar penetrates the first and third conductive layers in the first area. The first and second contacts are provided on the second and third conductive layers respectively in a second area. The first and second members are provided between the second and third conductive layers in the first and second area, respectively. The third member penetrates the first conductive layers. The third member is in contact with each of the second and third conductive layers, and the first and second members.
    Type: Application
    Filed: September 9, 2019
    Publication date: September 17, 2020
    Applicant: Toshiba Memory Corporation
    Inventors: Hisashi HARADA, Ayaha Hachisuga, Jun Nishimura
  • Publication number: 20200235117
    Abstract: A semiconductor device of an embodiment includes a control circuit arranged on a substrate, a first conductive layer arranged on the control circuit and containing a first element as a main component, a multilayer structure arranged on the first conductive layer and configured such that multiple second conductive layers and multiple insulating layers are alternately stacked on each other, a memory layer penetrating the multilayer structure and reaching the first conductive layer at a bottom portion, a first layer arranged between the control circuit and the first conductive layer and containing the first element as a main component, and a second layer arranged between the control circuit and the first layer and containing, as a main component, a second element different from the first element.
    Type: Application
    Filed: August 9, 2019
    Publication date: July 23, 2020
    Applicant: Toshiba Memory Corporation
    Inventors: Kosuke HORIBE, Kei Watanabe, Toshiyuki Sasaki, Tomo Hasegawa, Soichi Yamazaki, Keisuke Kikutani, Jun Nishimura, Hisashi Harada, Hideyuki Kinoshita
  • Patent number: 10692886
    Abstract: A semiconductor memory device according to an embodiment includes: a substrate; a plurality of first gate electrodes; a first semiconductor film facing the plurality of first gate electrodes; and a first gate insulating film provided between the plurality of first gate electrodes and the first semiconductor film. Moreover, this semiconductor memory device includes: a plurality of second gate electrodes; a second semiconductor film facing the plurality of second gate electrodes; and a second gate insulating film provided between the plurality of second gate electrodes and the second semiconductor film. Moreover, this semiconductor memory device includes: a third gate electrode that is provided between the plurality of first gate electrodes and the plurality of second gate electrodes, and extends in a second direction; and a third gate insulating film provided between the third gate electrode and the first semiconductor film.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: June 23, 2020
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Shunsuke Kasashima, Jun Nishimura, Takamitsu Ochi, Hisashi Harada, Ayaha Hachisuga, Ayako Kawanishi