Patents by Inventor Koichi Nagai

Koichi Nagai 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: 10875114
    Abstract: In a vapor-phase type heating method, an object is heated by a heated gas containing vapor in a heating furnace. The heat transfer fluid falling from a front surface of the object to a lower portion of the heating furnace is collected, after the vapor comes into contact with the object and cools to liquefy and latent heat of vaporization of the vapor is applied to the object through phase change. The heated gas obtained after heating the object is discharged from an inside of the heating furnace to the circulation route. In the circulation route, the heat transfer fluid is supplied as droplets to the discharged heated gas and is vaporized after heating, and the heated gas including the vapor is supplied to the heating furnace.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: December 29, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Koichi Nagai, Naofumi Hino
  • Patent number: 10754561
    Abstract: According to one embodiment, an information processing apparatus includes a connector to which a storage device is connectable. The apparatus includes a power supply circuit which supplies power to the storage device via one or more power pins of the connector. The first pin of the connector is set to a first electric potential or an open state based on a power supply capability of the power supply circuit. A state of the first pin which is set to the first electric potential indicates that a maximum power supplied from the power supply circuit to the storage device via the one or more power pins of the connector is a first power. A state of the first pin which is set to the open state indicates that the maximum power is a second power.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: August 25, 2020
    Assignee: Toshiba Memory Corporation
    Inventor: Koichi Nagai
  • Patent number: 10717143
    Abstract: A vapor-phase type heating method includes: collecting, in the vapor tank, the heat transfer liquid which has come into contact with a heating target object, has cooled to liquefy, and has fallen down as droplets from a front surface of the heating target object to a lower portion of a heating furnace; resupplying, to the heating furnace, heated gas to which the vapor has been supplied and which has been formed by supplying the vapor from the vapor tank to heated gas obtained from heating the heating target object discharged from the heating furnace to a circulation pathway; and heating the heating target object, at a predetermined rate of temperature rise in a state of an even distribution of the vapor of the heat transfer liquid by maintaining the vapor of the heat transfer liquid in a predetermined amount in the heating furnace by the collection and the supply.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: July 21, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Koichi Nagai, Tomoyasu Murakami, Naofumi Hino
  • Publication number: 20200141652
    Abstract: A gas phase type heating method includes loading an object into a vapor heating furnace or a heating furnace via a loading/unloading portion, cooling vapor of a heat transfer liquid by a cooler provided above the loading/unloading portion in the vapor heating furnace, and causing a gas to go in and out, making a pressure in a continuous furnace uniform, and heating the loaded object, by a connection portion that is provided above the cooler and has a pressure loss smaller than a pressure loss of the loading/unloading portion.
    Type: Application
    Filed: October 8, 2019
    Publication date: May 7, 2020
    Inventor: KOICHI NAGAI
  • Publication number: 20200057733
    Abstract: According to one embodiment, a data storage apparatus includes a controller with a data protection function. The controller manages first and second personal identification data. The first personal identification data only includes authority to request inactivation of the data protection function. The second personal identification data includes authority to request inactivation of the data protection function and activation of the data protection function. The controller permits setting of the first personal identification data, when the second personal identification data is used for successful authentication and the first personal identification data is an initial value, or when the data protection function is in an inactive state.
    Type: Application
    Filed: October 24, 2019
    Publication date: February 20, 2020
    Applicant: Toshiba Memory Corporation
    Inventors: Hiroshi ISOZAKI, Koichi Nagai
  • Patent number: 10566274
    Abstract: According to one embodiment, a semiconductor device includes a board, a sealing portion, a controller, a semiconductor chip, and solder balls. The board includes a first surface and a second surface opposite to the first surface. The controller and the semiconductor chip are covered with the sealing portion. The solder balls are on the second surface of the board. The solder balls include a plurality of solder ball sets each corresponding to a pair of differential input and differential output signals, and the plurality of solder ball sets are arranged substantially parallel to a side of the board.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: February 18, 2020
    Assignee: Toshiba Memory Corporation
    Inventors: Isao Ozawa, Isao Maeda, Yasuo Kudo, Koichi Nagai, Katsuya Murakami
  • Publication number: 20200001386
    Abstract: A reflow furnace that can reduce both the flux clinging defect in a circuit board, and the thermal cracking defect in an electronic component has a heat zone in which a circuit board with a mounted electronic component is heated, and a cooling zone in which the heated circuit board is cooled, and includes: a shield disposed between the heat zone and the cooling zone and having an opening for passage of the circuit board; and a tunnel-like cover physically coupled to the opening and extending along a transport direction of the circuit board.
    Type: Application
    Filed: February 13, 2019
    Publication date: January 2, 2020
    Inventors: NAOSHI YAMAGUCHI, TOSHIRO KANDA, YASUYUKI TAKANO, KOICHI NAGAI
  • Publication number: 20190388991
    Abstract: A method and an apparatus for collecting flux in a way that improves the cleanliness inside a furnace by improving flux collection efficiency, reduces flux viscosity to maintain a liquid state even at ordinary temperature, and makes the flux collection unit more easily serviceable includes a rosin particle contained in an atmosphere gas, and vapor of a solvent or an atomized solvent particle are mixed in a mixing section provided upstream of a flux collection unit-side inlet, and a gas containing a mixed particle is cleaned by means of electrostatic precipitation. The solvent particle adheres to the rosin particle, and forms an aggregate of large particle size that can be more easily charged by corona discharge. This improves the flux collection rate of electrostatic precipitation collection, and, because the rosin particle dissolves in the solvent particle, the collected flux can have reduced viscosity.
    Type: Application
    Filed: February 12, 2019
    Publication date: December 26, 2019
    Inventors: NAOSHI YAMAGUCHI, KOICHI NAGAI, YASUYUKI TAKANO, TOSHIRO KANDA
  • Patent number: 10509735
    Abstract: According to one embodiment, a data storage apparatus includes a controller with a data protection function. The controller manages first and second personal identification data. The first personal identification data only includes authority to request inactivation of the data protection function. The second personal identification data includes authority to request inactivation of the data protection function and activation of the data protection function. The controller permits setting of the first personal identification data, when the second personal identification data is used for successful authentication and the first personal identification data is an initial value, or when the data protection function is in an inactive state.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: December 17, 2019
    Assignee: Toshiba Memory Corporation
    Inventors: Hiroshi Isozaki, Koichi Nagai
  • Patent number: 10505927
    Abstract: According to one embodiment, a memory device includes: a nonvolatile semiconductor memory; and a controller which controls the semiconductor memory. The controller includes: a first memory which stores a first key; a second memory which stores a second key; a first generator which generates a third key based on a random number; a second generator which generates a fourth key based on the first key and the third key; and an encryptor which encrypts the second key with the third key. The third key and the encrypted second key are stored in a host device enabled to access the memory device.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: December 10, 2019
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Koichi Nagai, Yuji Kashiwagi
  • Patent number: 10478828
    Abstract: Provided is a solvent separation method and a solvent separation apparatus that make it possible to efficiently retrieve the thermal energy possessed by an exhaust atmosphere released in a solvent-removal step to suppress reductions in a temperature of the exhaust atmosphere. In the solvent separation method and the solvent separation apparatus, a vaporized solvent is removed from a gas while heat exchange between the gas within a condensation part and the gas within a dust-collection part is conducted by using a heat exchange part that is placed between the condensation part that introduces the gas into a first direction and the dust-collection part that introduce the gas into a second direction opposite to the first direction the gas discharged from a downstream side of the condensation part.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: November 19, 2019
    Assignee: Panasonic Corporation
    Inventors: Koichi Nagai, Masanori Minamio, Toshiro Kanda, Masahiro Kawata, Yasuyuki Takano
  • Publication number: 20190314917
    Abstract: In a vapor-phase type heating method, an object is heated by a heated gas containing vapor in a heating furnace. The heat transfer fluid falling from a front surface of the object to a lower portion of the heating furnace is collected, after the vapor comes into contact with the object and cools to liquefy and latent heat of vaporization of the vapor is applied to the object through phase change. The heated gas obtained after heating the object is discharged from an inside of the heating furnace to the circulation route. In the circulation route, the heat transfer fluid is supplied as droplets to the discharged heated gas and is vaporized after heating, and the heated gas including the vapor is supplied to the heating furnace.
    Type: Application
    Filed: February 12, 2019
    Publication date: October 17, 2019
    Inventors: KOICHI NAGAI, NAOFUMI HINO
  • Publication number: 20190265897
    Abstract: According to one embodiment, an information processing apparatus includes a connector to which a storage device is connectable. The apparatus includes a power supply circuit which supplies power to the storage device via one or more power pins of the connector. The first pin of the connector is set to a first electric potential or an open state based on a power supply capability of the power supply circuit. A state of the first pin which is set to the first electric potential indicates that a maximum power supplied from the power supply circuit to the storage device via the one or more power pins of the connector is a first power. A state of the first pin which is set to the open state indicates that the maximum power is a second power.
    Type: Application
    Filed: July 10, 2018
    Publication date: August 29, 2019
    Applicant: Toshiba Memory Corporation
    Inventor: Koichi NAGAI
  • Patent number: 10376831
    Abstract: Provided is a solvent separation method and a solvent separation apparatus in which a vaporized solvent is collected at one internal side of a solvent separation unit by attracting the vaporized solvent based on electric field, while the vaporized solvent is prevented from coming into contact with electrodes, and the collected solvent is discharged from the solvent separation unit. Different electric fields are alternately applied to a pair of first electrodes and a pair of second electrodes present at predetermined locations inside a tetragonal tubular solvent separation unit to attract a vaporized solvent toward the second electrodes. Thus, the vaporized solvent is collected in a space between the second electrodes inside the solvent separation unit, and the collected solvent is discharged from the solvent separation unit, together with a portion of the exhaust atmosphere present around the collected solvent.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: August 13, 2019
    Assignee: Panasonic Corporation
    Inventors: Tomohiro Ujino, Koichi Nagai, Naofumi Hino
  • Publication number: 20190236032
    Abstract: According to one embodiment, a data storage apparatus includes a controller with a data protection function. The controller manages first and second personal identification data. The first personal identification data only includes authority to request inactivation of the data protection function. The second personal identification data includes authority to request inactivation of the data protection function and activation of the data protection function. The controller permits setting of the first personal identification data, when the second personal identification data is used for successful authentication and the first personal identification data is an initial value, or when the data protection function is in an inactive state.
    Type: Application
    Filed: June 11, 2018
    Publication date: August 1, 2019
    Applicant: Toshiba Memory Corporation
    Inventors: Hiroshi ISOZAKI, Koichi NAGAI
  • Publication number: 20190173875
    Abstract: According to one embodiment, a memory device includes: a nonvolatile semiconductor memory; and a controller which controls the semiconductor memory. The controller includes: a first memory which stores a first key; a second memory which stores a second key; a first generator which generates a third key based on a random number; a second generator which generates a fourth key based on the first key and the third key; and an encryptor which encrypts the second key with the third key. The third key and the encrypted second key are stored in a host device enabled to access the memory device.
    Type: Application
    Filed: November 29, 2018
    Publication date: June 6, 2019
    Applicant: Toshiba Memory Corporation
    Inventors: Koichi NAGAI, Yuji Kashiwagi
  • Patent number: 10258995
    Abstract: Provided are a solvent separation method, a solvent separation apparatus, and a solvent separation system that make it possible to easily collect a solvent removed from an exhaust atmosphere and that make it possible to easily carry out maintenance of exhaust gas pathways. An impeller placed in a storage space of a casing is rotated to introduce a gas including a volatilized solvent from an inlet of the casing into the storage space, and the volatilized solvent is cooled and devolatilized by a collection face that has been cooled so as to have a surface temperature lower than the temperature of the gas, to thereby separate the solvent from the gas.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: April 16, 2019
    Assignee: Panasonic Corporation
    Inventors: Koichi Nagai, Masanori Minamio, Toshiro Kanda, Yasuyuki Takano, Masahiro Kawata
  • Patent number: 10157149
    Abstract: According to one embodiment, a memory device includes: a nonvolatile semiconductor memory; and a controller which controls the semiconductor memory. The controller includes: a first memory which stores a first key; a second memory which stores a second key; a first generator which generates a third key based on a random number; a second generator which generates a fourth key based on the first key and the third key; and an encryptor which encrypts the second key with the third key. The third key and the encrypted second key are stored in a host device enabled to access the memory device.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: December 18, 2018
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Koichi Nagai, Yuji Kashiwagi
  • Publication number: 20180345397
    Abstract: A vapor-phase type heating method includes: collecting, in the vapor tank, the heat transfer liquid which has come into contact with a heating target object, has cooled to liquefy, and has fallen down as droplets from a front surface of the heating target object to a lower portion of a heating furnace; resupplying, to the heating furnace, heated gas to which the vapor has been supplied and which has been formed by supplying the vapor from the vapor tank to heated gas obtained from heating the heating target object discharged from the heating furnace to a circulation pathway; and heating the heating target object, at a predetermined rate of temperature rise in a state of an even distribution of the vapor of the heat transfer liquid by maintaining the vapor of the heat transfer liquid in a predetermined amount in the heating furnace by the collection and the supply.
    Type: Application
    Filed: April 11, 2018
    Publication date: December 6, 2018
    Inventors: KOICHI NAGAI, TOMOYASU MURAKAMI, NAOFUMI HINO
  • Publication number: 20180315695
    Abstract: According to one embodiment, a semiconductor device includes a board, a sealing portion, a controller, a semiconductor chip, and solder balls. The board includes a first surface and a second surface opposite to the first surface. The controller and the semiconductor chip are covered with the sealing portion. The solder balls are on the second surface of the board. The solder balls include a plurality of solder ball sets each corresponding to a pair of differential input and differential output signals, and the plurality of solder ball sets are arranged substantially parallel to a side of the board.
    Type: Application
    Filed: July 6, 2018
    Publication date: November 1, 2018
    Applicant: Toshiba Memory Corporation
    Inventors: Isao OZAWA, Isao MAEDA, Yasuo KUDO, Koichi NAGAI, Katsuya MURAKAMI