Patents by Inventor Keisuke Nakashima

Keisuke Nakashima 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: 10838663
    Abstract: A memory device includes a non-volatile memory and a controller. The controller is configured to control the non-volatile memory and includes a receiving circuit configured to receive first data from an external device, a converting circuit configured to convert the first data received by the receiving circuit to second data having a data size equal to or smaller than a data size of the first data, and a writing circuit configured to write the second data converted by the converting circuit in the non-volatile memory.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: November 17, 2020
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Keisuke Sato, Shuichi Sakurai, Masahiko Nakashima, Kuniaki Ito, Hitomi Tanaka
  • Publication number: 20200310991
    Abstract: A storage device includes an antenna, a first nonvolatile memory that is operable using power generated at the antenna by an electromagnetic induction caused by an external device, and stores lock state information, a first controller configured to change the lock state information in response to a command that is wirelessly transmitted from the external device through the antenna, a second nonvolatile memory, and a second controller configured to allow access to a memory region of the second nonvolatile memory depending on the lock state information stored in the first nonvolatile memory.
    Type: Application
    Filed: June 15, 2020
    Publication date: October 1, 2020
    Inventors: Keisuke SATO, Masaomi TERANISHI, Shuichi SAKURAI, Masahiko NAKASHIMA, Shigeki KOIZUMI
  • Publication number: 20200278011
    Abstract: A vehicle drive system including: a rotating electric machine; an output drivingly coupled to a wheel; a differential gear device provided in a power transmission path between the rotating electric machine and the output, the differential gear device including at least a first rotating element drivingly coupled to the rotating electric machine, a second rotating element drivingly coupled to the output, and a third rotating element that is selectively fixed by a one-way clutch to a non-rotating member and that is selectively fixed by a friction brake to the non-rotating member; and a clutch that selectively couples together two of the first rotating element, the second rotating element, and the third rotating element.
    Type: Application
    Filed: November 14, 2018
    Publication date: September 3, 2020
    Applicant: AISIN AW CO., LTD.
    Inventors: Takeshi TORII, Hiroshi KATO, Takuro IWASE, Keisuke NAKASHIMA, Daisuke YAMAOKA
  • Patent number: 10719457
    Abstract: A storage device includes an antenna, a first nonvolatile memory that is operable using power generated at the antenna by an electromagnetic induction caused by an external device, and stores lock state information, a first controller configured to change the lock state information in response to a command that is wirelessly transmitted from the external device through the antenna, a second nonvolatile memory, and a second controller configured to allow access to a memory region of the second nonvolatile memory depending on the lock state information stored in the first nonvolatile memory.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: July 21, 2020
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Keisuke Sato, Masaomi Teranishi, Shuichi Sakurai, Masahiko Nakashima, Shigeki Koizumi
  • Patent number: 10702677
    Abstract: An introducer sheath is disclosed, which includes a tube body that is percutaneously inserted into a body lumen; and a hub that is connected to a proximal portion of the tube body. The tube body contains a polyvinylidene fluoride resin, a ratio of a thickness to an inner diameter of the tube body is 1/16 or lower, and a ratio of a kink radius to an outer diameter of the tube body is 9.5 or lower.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: July 7, 2020
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Ryo Okamura, Tatsuya Ouchi, Keisuke Yoshida, Daisuke Nakashima, Katsuaki Soma
  • Publication number: 20200133524
    Abstract: A storage apparatus includes a first memory, which is nonvolatile, a first controller that controls the first memory, a wireless antenna, a second memory, which is operable based on power supplied from the wireless antenna, and a second controller that is operable based on the power supplied from the wireless antenna, and performs communication using the wireless antenna. When performing communication with an external apparatus using the wireless antenna, the second controller performs authentication of the external apparatus, and stores in the second memory an authentication result indicating whether the authentication succeeded or failed. If the authentication result indicates that the authentication succeeded, the second controller permits reading by the external apparatus of first data from the second memory by communication using the wireless antenna or writing by the external apparatus of second data to the second memory by communication using the wireless antenna.
    Type: Application
    Filed: December 23, 2019
    Publication date: April 30, 2020
    Inventors: Masaomi TERANISHI, Keisuke SATO, Shuichi SAKURAI, Masahiko NAKASHIMA
  • Publication number: 20200061683
    Abstract: A subsurface soil purification method including: warming an activator liquid, for stimulating decomposer microorganisms that decompose a contaminant in subsurface soil, to a higher temperature than a groundwater temperature, and feeding the activator liquid into the subsurface soil by injecting the activator liquid into an in-ground injection well; warming an activator liquid, for stimulating decomposer microorganisms that decompose a contaminant in subsurface soil, the decomposer microorganisms being infused in the activator liquid, to a higher temperature than a groundwater temperature, and feeding the activator liquid into the subsurface soil by injecting the activator liquid into an in-ground injection well, or warming a purification liquid for decomposing a contaminant in subsurface soil, to a higher temperature than a groundwater temperature, and feeding the purification liquid into the subsurface soil by injecting the purification liquid into an in-ground injection well.
    Type: Application
    Filed: August 29, 2017
    Publication date: February 27, 2020
    Applicants: TAKENAKA CORPORATION, TAKENAKA CIVIL ENGINEERING & CONSTRUCTION CO., LTD.
    Inventors: Kaoru INABA, Yuji YAMAZAKI, Takaaki SHIMIZU, Nobuyasu OKUDA, Yasuhide FURUKAWA, Tomohiro NAKASHIMA, Haruka KIYOTOMO, Kazuhiro MUKAI, Masafumi FUNAKAWA, Ai HASEGAWA, Keisuke OMURA, Kota TANABE
  • Patent number: 10552065
    Abstract: A storage apparatus includes a first memory, which is nonvolatile, a first controller that controls the first memory, a wireless antenna, a second memory, which is operable based on power supplied from the wireless antenna, and a second controller that is operable based on the power supplied from the wireless antenna, and performs communication using the wireless antenna. When performing communication with an external apparatus using the wireless antenna, the second controller performs authentication of the external apparatus, and stores in the second memory an authentication result indicating whether the authentication succeeded or failed. If the authentication result indicates that the authentication succeeded, the second controller permits reading by the external apparatus of first data from the second memory by communication using the wireless antenna or writing by the external apparatus of second data to the second memory by communication using the wireless antenna.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: February 4, 2020
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Masaomi Teranishi, Keisuke Sato, Shuichi Sakurai, Masahiko Nakashima
  • Patent number: 10400605
    Abstract: A turbofan includes a boss rotatable about an axis, a main plate connected to the boss, a shroud having an intake hole, and a plurality of blades arranged between the main plate and the shroud. An undulating protrusion portion is arranged at a front edge portion of each blade. The undulating protrusion portion includes a plurality of protrusions. The pitches of the plurality of protrusions are formed so as to become smaller as approaching to the main plate side.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: September 3, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Seiji Nakashima, Yoshiki Sato, Keisuke Oishi
  • Patent number: 10393162
    Abstract: A manufacturing method for a joint part in which a first metal piece and a second metal piece are joined to each other by performing welding by irradiating a high-energy beam to a joint surface on which the first metal piece and the second metal piece face each other, the first metal piece including a first flow path for passage of a fluid provided at a specific depth from a surface on a side exposed to the high-energy beam, the second metal piece including a second flow path for passage of the fluid provided at a specific depth from the surface on the side exposed to the high-energy beam, and the first flow path and the second flow path being coupled to each other on the joint surface.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: August 27, 2019
    Assignee: AISIN AW CO., LTD.
    Inventors: Takashi Iwama, Hiroyuki Ono, Takeshi Torii, Keisuke Nakashima, Yusuke Miyamoto, Tetsuya Aoyama
  • Publication number: 20190193129
    Abstract: A subsurface soil purification method includes a first process of injecting a cleaning liquid, that separates a contaminant in subsurface soil from the subsurface soil and that has been warmed to a higher temperature than a groundwater temperature, into an injection well provided in the ground, and a second process of pumping up groundwater containing the cleaning liquid, in which the contaminant separated from the subsurface soil has been dissolved, from a pumping well that is provided in the ground so as to be spaced apart from the injection well.
    Type: Application
    Filed: August 29, 2017
    Publication date: June 27, 2019
    Inventors: Yuji YAMAZAKI, Takaaki SHIMIZU, Nobuyasu OKUDA, Yasuhide FURUKAWA, Tomohiro NAKASHIMA, Haruka KIYOTOMO, Kazuhiro MUKAI, Kaoru INABA, Koudai MAE, Masafumi FUNAKAWA, Ai HASEGAWA, Keisuke OMURA, Kota TANABE
  • Publication number: 20180094287
    Abstract: A composition that efficiently produces cellulose includes cell extracts derived from a tunicate of ascidian class or yeast expressing tunicate cellulose synthase, at least one divalent cation of calcium ion and magnesium ion, cellobiose and UDP-glucose. The composition has a pH in the range of 6.6-7.2.
    Type: Application
    Filed: April 20, 2016
    Publication date: April 5, 2018
    Inventors: Keisuke NAKASHIMA, Sakura KIKUCHI, Noriyuki SATOH
  • Publication number: 20170370389
    Abstract: A manufacturing method for a joint part in which a first metal piece and a second metal piece are joined to each other by performing welding by irradiating a high-energy beam to a joint surface on which the first metal piece and the second metal piece face each other, the first metal piece including a first flow path for passage of a fluid provided at a specific depth from a surface on a side exposed to the high-energy beam, the second metal piece including a second flow path for passage of the fluid provided at a specific depth from the surface on the side exposed to the high-energy beam, and the first flow path and the second flow path being coupled to each other on the joint surface.
    Type: Application
    Filed: March 18, 2016
    Publication date: December 28, 2017
    Applicant: AISIN AW CO., LTD.
    Inventors: Takashi IWAMA, Hiroyuki ONO, Takeshi TORII, Keisuke NAKASHIMA, Yusuke MIYAMOTO, Tetsuya AOYAMA
  • Patent number: 9784364
    Abstract: A planetary carrier where the second pinion gears are disposed so as to be at least partially located in the spaces between the adjacent bridge portions, an outer peripheral surface of each of the bridge portions is provided with a spline onto which a friction engagement plate constituting a friction engagement element is fitted, an inner peripheral surface of each of the bridge portions is provided with a pair of wall portions that extend in the axial direction along side edges on both sides of each of the bridge portions and protrude radially inward, and each of the bridge portions is provided with a plurality of oil holes through which an inside and an outside of each of the bridge portions communicate with each other.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: October 10, 2017
    Assignee: AISIN AW CO., LTD.
    Inventors: Nakatsune Hattori, Motoshi Asano, Tsubasa Deguchi, Keisuke Nakashima, Takeshi Torii
  • Publication number: 20160290492
    Abstract: A planetary carrier where the second pinion gears are disposed so as to be at least partially located in the spaces between the adjacent bridge portions, an outer peripheral surface of each of the bridge portions is provided with a spline onto which a friction engagement plate constituting a friction engagement element is fitted, an inner peripheral surface of each of the bridge portions is provided with a pair of wall portions that extend in the axial direction along side edges on both sides of each of the bridge portions and protrude radially inward, and each of the bridge portions is provided with a plurality of oil holes through which an inside and an outside of each of the bridge portions communicate with each other.
    Type: Application
    Filed: November 19, 2014
    Publication date: October 6, 2016
    Applicant: AISIN AW CO., LTD.
    Inventors: Nakatsune HATTORI, Motoshi ASANO, Tsubasa DEGUCHI, Keisuke NAKASHIMA, Takeshi TORII
  • Publication number: 20160281839
    Abstract: A transmission device that includes a flange provided with first exposing portions and second exposing portions arranged alternately with each other, and is also provided with a plurality of bridges, the first and second exposing portions exposing at least part of the shaft recesses and the outer peripheral portions of the pinion shafts inserted into the shaft support holes, and also exposing the crimp receiving portions of the planetary carrier, and the bridges connecting portions between the adjacent first and second exposing portions on an inner peripheral side of either of the first and second exposing portions.
    Type: Application
    Filed: March 28, 2014
    Publication date: September 29, 2016
    Inventors: Takeshi Torii, Tsubasa Deguchi, Keisuke Nakashima
  • Patent number: 9388705
    Abstract: The sealing device includes: an outer peripheral ring 2000 that is in contact with a side wall surface of an annular groove 4100 at a low pressure side (L), and slides with respect to an inner peripheral surface of a shaft hole in a housing 5000 through which a shaft 4000 is inserted. An inner peripheral ring 3000 made of a rubber-like elastic body that is in contact with an inner peripheral surface of the outer peripheral ring 2000 and a groove bottom surface of the annular groove 4100, respectively. The outer peripheral ring 2000 is formed on its outer peripheral surface with a concave portion 2220 which extends from an end of a high pressure side (H) to a position which does not arrive at an end of a low pressure side, so as to introduce fluid thereinto from the high pressure side.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: July 12, 2016
    Assignee: NOK CORPORATION
    Inventors: Kazunari Seki, Koji Watanabe, Wataru Tokunaga, Yuki Takao, Fangman Xu, Hirotaka Mizuta, Keisuke Nakashima, Takuya Igawa, Yusuke Yoshida, Hideya Watanabe, Yosuke Kondo
  • Patent number: 9309973
    Abstract: The sealing device includes: an outer peripheral ring 2000 that is in contact with a side wall surface of an annular groove 4100 at a low pressure side (L), and slides with respect to an inner peripheral surface of a shaft hole in a housing 5000 through which a shaft 4000 is inserted. An inner peripheral ring 3000 made of a rubber-like elastic body that is in contact with an inner peripheral surface of the outer peripheral ring 2000 and a groove bottom surface of the annular groove 4100, respectively. The outer peripheral ring 2000 is formed on its outer peripheral surface with a concave portion 2220 which extends from an end of a high pressure side (H) to a position which does not arrive at an end of a low pressure side, so as to introduce fluid thereinto from the high pressure side.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: April 12, 2016
    Assignee: NOK CORPORATION
    Inventors: Kazunari Seki, Koji Watanabe, Wataru Tokunaga, Yuki Takao, Fangman Xu, Hirotaka Mizuta, Keisuke Nakashima, Takuya Igawa, Yusuke Yoshida, Hideya Watanabe, Yosuke Kondo
  • Patent number: 9157530
    Abstract: The sealing device includes: an outer peripheral ring 2000 that is in contact with a side wall surface of an annular groove 4100 at a low pressure side (L), and slides with respect to an inner peripheral surface of a shaft hole in a housing 5000 through which a shaft 4000 is inserted. An inner peripheral ring 3000 made of a rubber-like elastic body that is in contact with an inner peripheral surface of the outer peripheral ring 2000 and a groove bottom surface of the annular groove 4100, respectively. The outer peripheral ring 2000 is formed on its outer peripheral surface with a concave portion 2220 which extends from an end of a high pressure side (H) to a position which does not arrive at an end of a low pressure side, so as to introduce fluid thereinto from the high pressure side.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: October 13, 2015
    Assignee: NOK CORPORATION
    Inventors: Kazunari Seki, Koji Watanabe, Wataru Tokunaga, Yuki Takao, Fangman Xu, Hirotaka Mizuta, Keisuke Nakashima, Takuya Igawa, Yusuke Yoshida, Hideya Watanabe, Yosuke Kondo
  • Publication number: 20150204204
    Abstract: The sealing device includes: an outer peripheral ring 2000 that is in contact with a side wall surface of an annular groove 4100 at a low pressure side (L), and slides with respect to an inner peripheral surface of a shaft hole in a housing 5000 through which a shaft 4000 is inserted. An inner peripheral ring 3000 made of a rubber-like elastic body that is in contact with an inner peripheral surface of the outer peripheral ring 2000 and a groove bottom surface of the annular groove 4100, respectively. The outer peripheral ring 2000 is formed on its outer peripheral surface with a concave portion 2220 which extends from an end of a high pressure side (H) to a position which does not arrive at an end of a low pressure side, so as to introduce fluid thereinto from the high pressure side.
    Type: Application
    Filed: March 11, 2013
    Publication date: July 23, 2015
    Inventors: Kazunari Seki, Koji Watanabe, Wataru Tokunaga, Yuki Takao, Fangman Xu, Hirotaka Mizuta, Keisuke Nakashima, Takuya Igawa, Yusuke Yoshida, Hideya Watanabe, Yosuke Kondo