Patents by Inventor Hitoshi Ishida

Hitoshi Ishida 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: 20220371891
    Abstract: A polycrystalline cubic boron nitride includes a cubic boron nitride particle group. The ratio of a second length to a first length is 0.99 or less. Here, each of the first length and the second length is a value measured on a surface of the polycrystalline cubic boron nitride with an indentation formed by a Knoop hardness test under conditions specified in ISO4545-1 and ISO4545-4. The second length represents the length of the longer diagonal of the indentation. The first length represents the sum of the second length and the length of the streaky indentation.
    Type: Application
    Filed: July 20, 2020
    Publication date: November 24, 2022
    Inventors: Hitoshi SUMIYA, Yuh ISHIDA
  • Patent number: 11453589
    Abstract: A method of producing a boron nitride polycrystal includes: a first step of obtaining a thermally treated powder by thermally treating a powder of a high pressure phase boron nitride at more than or equal to 1300° C.; and a second step of obtaining a boron nitride polycrystal by sintering the thermally treated powder under a condition of 8 to 20 GPa and 1200 to 2300° C.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: September 27, 2022
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Yuh Ishida, Hitoshi Sumiya
  • Publication number: 20220250141
    Abstract: The objective of the present invention is to improve non-defective product yield by reducing shrinkage cavities inside small-diameter ingots, in a method for casting active metals. In this Ti—Al based alloy casting method for casting an ingot of Ti—Al based alloy by tapping molten metal from a tapping hole (5) provided in a bottom portion of a water-cooled copper crucible (2), in an induction melting furnace (3) employing said crucible (2), into a casting mold (4), the degree of vacuum inside the induction melting furnace (3) when the Ti—Al based alloy is being melted or cast is in a range of 80 to 700 Torr, and the Al concentration in the cast ingot is within ±1.0 mass % of a target value.
    Type: Application
    Filed: July 10, 2020
    Publication date: August 11, 2022
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Tomohiro NISHIMURA, Daisuke MATSUWAKA, Hitoshi ISHIDA
  • Patent number: 11383306
    Abstract: Provided is a method for producing a polycrystalline diamond body, the method including a first step of heat-treating a powder of high-pressure-phase carbon at higher than or equal to 1300° C. to obtain a heat-treated carbon powder, and a second step of sintering the heat-treated carbon powder under conditions of greater than or equal to 12 GPa and less than or equal to 25 GPa and higher than or equal to 1200° C. and lower than or equal to 2300° C. to obtain a polycrystalline diamond body.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: July 12, 2022
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Yuh Ishida, Hitoshi Sumiya
  • Patent number: 11377714
    Abstract: A method includes the production of a primary ingot, the production of a secondary ingot, and the removal of a flux layer. A CaO—CaF2 flux in a content of 3-20 mass % and obtained by mixing 35-95 mass % of CaF2 with CaO is added to a Ti—Al alloy material including a total of at least 0.1 mass % of oxygen and at least 40 mass % of Al, and the resultant substance is melted by a melting method using a water-cooled copper container in an atmosphere having a pressure of 1.33 Pa or higher and held to produce the primary ingot. The primary ingot is continuously drawn downwards while being melted by a melting method using a bottomless water-cooled copper casting mould in an atmosphere having a pressure of 1.33 Pa or higher to produce the secondary ingot. The flux layer deposited on the surface of the secondary ingot is mechanically removed.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: July 5, 2022
    Assignee: KOBE STEEL, LTD.
    Inventors: Fumiaki Kudo, Daisuke Matsuwaka, Hitoshi Ishida, Tetsushi Deura
  • Patent number: 11319614
    Abstract: Disclosed herein is a method for deoxidizing an Al—Nb—Ti alloy, which includes melting and holding an Al—Nb—Ti alloy containing from 50 to 75 mass % of Al, from 5 to 30 mass % of Nb, and 80 mass % or less in total of Al and Nb by a melting method using a water-cooled copper vessel in an atmosphere of 1.33 Pa to 2.67×105 Pa at a temperature of 1,900 K or more, thereby decreasing an oxygen content thereof. The Al—Nb—Ti alloy is prepared using an alloy material formed of an aluminum material, a niobium material and a titanium material and containing oxygen in a total amount of 0.5 mass % or more.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: May 3, 2022
    Assignee: Kobe Steel, Ltd.
    Inventors: Daisuke Matsuwaka, Fumiaki Kudo, Tetsushi Deura, Hitoshi Ishida, Koichi Sakamoto
  • Publication number: 20220055916
    Abstract: Provided is a production method and a production apparatus that increase a throughput of nickel sulfate per equipment. A first dissolution step I of introducing a nickel briquette, sulfuric acid, and water to a leaching tank (1) and dissolving the nickel briquette to obtain a primary nickel sulfate solution, and a second dissolution step II of introducing the primary nickel sulfate solution and additionally introducing a nickel briquette to a leaching adjustment tank (2) and dissolving the additionally introduced nickel briquette with free sulfuric acid in the primary nickel sulfate solution to obtain a nickel sulfate solution are executed in this order.
    Type: Application
    Filed: October 23, 2019
    Publication date: February 24, 2022
    Applicant: SUMITOMO METAL MINING CO., LTD.
    Inventor: Hitoshi ISHIDA
  • Publication number: 20220027808
    Abstract: A process model is created from site data generated in a process. A process model creation system includes: a site data acquiring section that acquires, as site data, task information related to one or more tasks implemented for a process including the tasks, and task-related information related to the implemented tasks; an instance creating section that creates a step instance by associating the task-related information with the corresponding task information; and a process model creating section that creates, from one or more step instances, a process model which is a model representing a relationship between the one or more tasks in the process.
    Type: Application
    Filed: July 20, 2021
    Publication date: January 27, 2022
    Applicant: Hitachi, Ltd.
    Inventors: Takehiro Hagiwara, Hitoshi Ishida, Hiroki Miyamoto
  • Publication number: 20210240366
    Abstract: A multifunction device includes: a non-volatile memory storing encrypted information, which is information that is encrypted; a TPM for decrypting the encrypted information; and a main board communicating with the non-volatile memory and the TPM. The non-volatile memory and the TPM are attachable to and removable from the main board, as a single body. More specifically, the multifunction device includes: a first sub board which has the non-volatile memory attached thereto and is attachable to and removable from the main board; and a chip board which has the TPM attached thereto and is attachable and removable from the first sub board.
    Type: Application
    Filed: February 3, 2021
    Publication date: August 5, 2021
    Inventor: Hitoshi ISHIDA
  • Patent number: 10981222
    Abstract: A casting method of an active metal includes, in an induction melting furnace using a water-cooled crucible, tapping a molten metal into a mold from a tapping hole provided at a bottom of the water-cooled copper crucible to cast an ingot of the active metal. In conducting the casting under a casting condition in which the ingot has a diameter (D) of 10 mm or more and a ratio (H/D) of an ingot height H to the ingot diameter D of 1.5 or more and a weight of the molten metal tapped in the casting is 200 kg or less, a temperature of the molten metal in the casting is set to be higher than the melting point of the active metal and a casting velocity V (mm/sec) is controlled to satisfy V?0.1H in relation with the ingot height H by adjusting an opening diameter of the tapping hole.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: April 20, 2021
    Assignee: Kobe Steel, Ltd.
    Inventors: Yuzo Morikawa, Daisuke Matsuwaka, Hitoshi Ishida, Shushi Ikeda
  • Publication number: 20200377972
    Abstract: A method includes the production of a primary ingot, the production of a secondary ingot, and the removal of a flux layer. A CaO—CaF2 flux in a content of 3-20 mass % and obtained by mixing 35-95 mass % of CaF2 with CaO is added to a Ti—Al alloy material including a total of at least 0.1 mass % of oxygen and at least 40 mass % of Al, and the resultant substance is melted by a melting method using a water-cooled copper container in an atmosphere having a pressure of 1.33 Pa or higher and held to produce the primary ingot. The primary ingot is continuously drawn downwards while being melted by a melting method using a bottomless water-cooled copper casting mould in an atmosphere having a pressure of 1.33 Pa or higher to produce the secondary ingot. The flux layer deposited on the surface of the secondary ingot is mechanically removed.
    Type: Application
    Filed: February 23, 2018
    Publication date: December 3, 2020
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Fumiaki KUDO, Daisuke MATSUWAKA, Hitoshi ISHIDA, Tetsushi DEURA
  • Patent number: 10848073
    Abstract: A motor drive apparatus includes a converter configured to convert AC power from an AC power supply into DC power and then output the DC power to a DC link, a capacitor provided in the DC link, an inverter configured to convert DC power in the DC link into AC power for motor drive, a discharge circuit which is provided in parallel with the capacitor in the DC link, and is selectively switched between a discharge operation of discharging DC power in the DC link by electrically connecting the discharge circuit and the capacitor to each other, and a non-discharge operation of cutting electric connection between the discharge circuit and the capacitor, and a discharge circuit drive unit configured to perform switch drive of the discharge operation and the non-discharge operation of the discharge circuit by using DC power of the DC link as drive power for the switch drive.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: November 24, 2020
    Assignee: Fanuc Corporation
    Inventors: Tsutomu Shikagawa, Hitoshi Ishida
  • Publication number: 20200044577
    Abstract: A motor drive apparatus includes a converter configured to convert AC power from an AC power supply into DC power and then output the DC power to a DC link, a capacitor provided in the DC link, an inverter configured to convert DC power in the DC link into AC power for motor drive, a discharge circuit which is provided in parallel with the capacitor in the DC link, and is selectively switched between a discharge operation of discharging DC power in the DC link by electrically connecting the discharge circuit and the capacitor to each other, and a non-discharge operation of cutting electric connection between the discharge circuit and the capacitor, and a discharge circuit drive unit configured to perform switch drive of the discharge operation and the non-discharge operation of the discharge circuit by using DC power of the DC link as drive power for the switch drive.
    Type: Application
    Filed: July 29, 2019
    Publication date: February 6, 2020
    Applicant: Fanuc Corporation
    Inventors: Tsutomu Shikagawa, Hitoshi Ishida
  • Publication number: 20190299281
    Abstract: A casting method of an active metal includes, in an induction melting furnace using a water-cooled crucible, tapping a molten metal into a mold from a tapping hole provided at a bottom of the water-cooled copper crucible to cast an ingot of the active metal. In conducting the casting under a casting condition in which the ingot has a diameter (D) of 10 mm or more and a ratio (H/D) of an ingot height H to the ingot diameter D of 1.5 or more and a weight of the molten metal tapped in the casting is 200 kg or less, a temperature of the molten metal in the casting is set to be higher than the melting point of the active metal and a casting velocity V (mm/sec) is controlled to satisfy V?0.1H in relation with the ingot height H by adjusting an opening diameter of the tapping hole.
    Type: Application
    Filed: December 5, 2017
    Publication date: October 3, 2019
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Yuzo MORIKAWA, Daisuke MATSUWAKA, Hitoshi ISHIDA, Shushi IKEDA
  • Publication number: 20180287519
    Abstract: Provided is a motor drive device including: a current detector that detects a current flowing through a power line supplying power to a brake-equipped motor; and a controller that controls the brake-equipped motor based on the current value detected by the current detector. The controller includes a determination part that determines, when actuating the brake-equipped motor whose brake is in a braking state, states of the power line and the brake-equipped motor, based on the current value detected by the current detector after applying a voltage between the power lines. The controller outputs a release instruction signal for releasing the brake when the determination part determines that the states are normal.
    Type: Application
    Filed: March 19, 2018
    Publication date: October 4, 2018
    Inventor: Hitoshi ISHIDA
  • Patent number: 9951401
    Abstract: This boron-containing aluminum material is obtained by carrying out the following: a mixed powder, obtained by mixing a boride powder containing first boride particles, second boride particles and particles of unavoidable impurities with an aluminum powder or aluminum alloy powder that forms a matrix, is filled into in a square aluminum pipe having a prescribed shape and then rolled by using pressure rolls the gap between which is adjusted.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: April 24, 2018
    Assignee: Kobe Steel, Ltd.
    Inventors: Takashi Choda, Yukihide Honda, Tsuyoshi Suzuki, Hitoshi Ishida, Ryutaro Wada, Yoshiki Takebayashi, Tatsuhiko Kusamichi, Fumiaki Kudo
  • Publication number: 20180060872
    Abstract: There has not been a service for integrally supporting a customer from a time of purchasing a product through a time of purchasing a next new product, wherein use state information on product users is collected and analyzed with respect to deterioration and abnormality conditions while using the product, product resale time and time of purchasing a new product. This invention provides a customer support system for integrally supporting a customer, aiming to maximize benefits of the customer at the time of using the product, mending/repairing and reselling/selling the product after having used the product, and purchasing a next new product.
    Type: Application
    Filed: August 4, 2017
    Publication date: March 1, 2018
    Inventor: Hitoshi ISHIDA
  • Publication number: 20170335431
    Abstract: Disclosed herein is a method for deoxidizing an Al—Nb—Ti alloy, which includes melting and holding an Al—Nb—Ti alloy containing from 50 to 75 mass % of Al, from 5 to 30 mass % of Nb, and 80 mass % or less in total of Al and Nb by a melting method using a water-cooled copper vessel in an atmosphere of 1.33 Pa to 2.67×105 Pa at a temperature of 1,900 K or more, thereby decreasing an oxygen content thereof. The Al—Nb—Ti alloy is prepared using an alloy material formed of an aluminum material, a niobium material and a titanium material and containing oxygen in a total amount of 0.5 mass % or more.
    Type: Application
    Filed: November 4, 2015
    Publication date: November 23, 2017
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Daisuke MATSUWAKA, Fumiaki KUDO, Tetsushi DEURA, Hitoshi ISHIDA, Koichi SAKAMOTO
  • Publication number: 20170300834
    Abstract: If a moving object in use at a certain time calculates and displays a reselling price thereof in real time, it is possible to use the reselling price effectively for determining the replacement time of the moving object, and recognize the asset value of the moving object in real time, to effectively use the reselling price when using a financial aid and the like. The moving object calculates and displays a reselling price when using the moving object (in real time), using the acquisition price of the moving object, and at least one of the running distance and the number of days elapsed from the time of acquisition of the moving object.
    Type: Application
    Filed: February 12, 2017
    Publication date: October 19, 2017
    Inventor: Hitoshi ISHIDA
  • Patent number: D911223
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: February 23, 2021
    Inventors: Shogo Kinoshita, Hitoshi Ishida