Patents by Inventor Masato Sugawara

Masato Sugawara 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: 20240312542
    Abstract: A semiconductor storage device includes a thermal history monitor and a determination circuit. The thermal history monitor outputs a thermal history based on a characteristic variation of a memory cell when a reliability detection command is input from a controller or a host device. The determination circuit determines package reliability based on the thermal history output from the thermal history monitor.
    Type: Application
    Filed: February 29, 2024
    Publication date: September 19, 2024
    Applicant: Kioxia Corporation
    Inventors: Masato ENDO, Haruo MIKI, Daiki SUGAWARA
  • Patent number: 11827068
    Abstract: A stabilizer comprises a main bar that is elastically deformable, a pair of connecting plates respectively configured to be connected to a pair of left and right suspension apparatuses, and transition sections connecting both end portions of the main bar and the pair of connecting plates, a size of one transition section of the transition sections in a plate thickness direction of one connecting plate of the connecting plates gradually decreasing from the main bar toward the connecting plate, wherein the minimum value of the Vickers hardness of the transition section is 200 HV or more.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: November 28, 2023
    Assignee: NHK SPRING CO., LTD.
    Inventors: Masato Sugawara, Shogo Mori
  • Patent number: 11786960
    Abstract: A method for manufacturing a stabilizer, the stabilizer including a main body bar that is elastically deformable, and a pair of connecting plates that are separately connected to a pair of left and right suspension devices, the method including a forging step of forming the connecting plate by forging both end portions of a material tube, in which in the forging step, both end portions of the material tube are crushed in a radial direction to be formed into the connecting plate in a state where a sealing metal plate heated to a temperature equal to or higher than a melting point is disposed inside both end portions of the material tube heated to a temperature lower than the melting point.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: October 17, 2023
    Assignee: NHK SPRING CO., LTD.
    Inventors: Hiroshi Mizukami, Masato Inaba, Masato Sugawara, Michiya Masuda
  • Publication number: 20220152689
    Abstract: A method for manufacturing a stabilizer, the stabilizer including a main body bar that is elastically deformable, and a pair of connecting plates that are separately connected to a pair of left and right suspension devices, the method including a forging step of forming the connecting pate by forging both end portions of a material tube, in which in the forging step, both end portions of the material tube are crushed in a radial direction to be formed into the connecting plate in a state where a sealing metal plate heated to a temperature equal to or higher than a melting point is disposed inside both end portions of the material tube heated to a temperature lower than the melting point.
    Type: Application
    Filed: March 12, 2020
    Publication date: May 19, 2022
    Inventors: Hiroshi MIZUKAMI, Masato INABA, Masato SUGAWARA, Michiya MASUDA
  • Patent number: 11285776
    Abstract: A terminal sealed portion is formed on an end portion of a hollow rod made of steel. An enclosed space is formed on an inner side of the hollow rod. At an end of the enclosed space, a terminal gap is formed. A volatile powdered rust inhibitor is supplied in the enclosed space. As the volatile powdered rust inhibitor is vaporized, the enclosed space is turned into a rust-inhibiting atmosphere. As the vaporized component of the volatile powdered rust inhibitor is adsorbed to an inner surface of the enclosed space, an inner surface rust-inhibiting film is formed. The vaporized component also enters inside the terminal gap, and forms a terminal rust-inhibiting film.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: March 29, 2022
    Assignee: NHK SPRING CO., LTD.
    Inventors: Akira Tange, Masato Sugawara, Yutaka Wakabayashi
  • Publication number: 20210094379
    Abstract: A stabilizer comprises a main bar that is elastically deformable, a pair of connecting plates respectively configured to be connected to a pair of left and right suspension apparatuses, and transition sections connecting both end portions of the main bar and the pair of connecting plates, a size of one transition section of the transition sections in a plate thickness direction of one connecting plate of the connecting plates gradually decreasing from the main bar toward the connecting plate, wherein the minimum value of the Vickers hardness of the transition section is 200 HV or more.
    Type: Application
    Filed: December 10, 2020
    Publication date: April 1, 2021
    Inventors: Masato SUGAWARA, Shogo MORI
  • Patent number: 10483207
    Abstract: According to one embodiment, the insulating layer is provided on the terrace portions. The plurality of contact portions extend through the insulating layer in the stacking direction and contact the terrace portions. The second columnar portion extends through the insulating layer and through the second stacked portion in the stacking direction, and includes a second semiconductor body contacting the first semiconductor region. The first insulating portion divides the first semiconductor region in the first direction. The first insulating portion is provided under a boundary portion between the first stacked portion and the second stacked portion.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: November 19, 2019
    Assignee: Toshiba Memory Corporation
    Inventors: Masatoshi Watarai, Masanori Hatakeyama, Takuya Kusaka, Kazunori Masuda, Masato Endo, Koichi Fukuda, Masato Sugawara
  • Patent number: 10442269
    Abstract: A hollow stabilizer has a tubular shape and is provided with a torsion section that is provided to a vehicle and that extends in the vehicle width direction; an arm section that extends in the front-back direction of the vehicle; and bent sections that connect the torsion section and the arm section. The hardness of the outer surface of the bent inner sides of the bent sections of the hollow stabilizer is 70% or more with respect to the hardness of the outer surface of the arm section.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: October 15, 2019
    Assignee: NHK Spring Co., Ltd.
    Inventors: Yutaka Wakabayashi, Ken Takahashi, Masato Sugawara, Hideki Okada
  • Patent number: 10415110
    Abstract: A method of manufacturing a hollow stabilizer includes a forming step of subjecting an element pipe to a bending process, to form a product shape including bent portions, and a quenching step of quenching the element pipe subjected to the bending process. In the quenching step, a cooling process is performed by immersing the element pipe made of steel in coolant and by spraying the coolant to an outer surface of the bent portion.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: September 17, 2019
    Assignee: NHK Spring Co., Ltd.
    Inventors: Yutaka Wakabayashi, Ken Takahashi, Masato Sugawara, Hideki Okada
  • Publication number: 20190030980
    Abstract: A terminal sealed portion is formed on an end portion of a hollow rod made of steel. An enclosed space is formed on an inner side of the hollow rod. At an end of the enclosed space, a terminal gap is formed. A volatile powdered rust inhibitor is supplied in the enclosed space. As the volatile powdered rust inhibitor is vaporized, the enclosed space is turned into a rust-inhibiting atmosphere. As the vaporized component of the volatile powdered rust inhibitor is adsorbed to an inner surface of the enclosed space, an inner surface rust-inhibiting film is formed. The vaporized component also enters inside the terminal gap, and forms a terminal rust-inhibiting film.
    Type: Application
    Filed: September 28, 2018
    Publication date: January 31, 2019
    Applicant: NHK SPRING CO., LTD.
    Inventors: Akira TANGE, Masato SUGAWARA, Yutaka WAKABAYASHI
  • Publication number: 20180117983
    Abstract: A hollow stabilizer has a tubular shape and is provided with a torsion section that is provided to a vehicle and that extends in the vehicle width direction; an arm section that extends in the front-back direction of the vehicle; and bent sections that connect the torsion section and the arm section. The hardness of the outer surface of the bent inner sides of the bent sections of the hollow stabilizer is 70% or more with respect to the hardness of the outer surface of the arm section.
    Type: Application
    Filed: March 16, 2016
    Publication date: May 3, 2018
    Inventors: Yutaka Wakabayashi, Ken Takahashi, Masato Sugawara, Hideki Okada
  • Publication number: 20180073096
    Abstract: A method of manufacturing a hollow stabilizer includes a forming step of subjecting an element pipe to a bending process, to form a product shape including bent portions, and a quenching step of quenching the element pipe subjected to the bending process. In the quenching step, a cooling process is performed by immersing the element pipe made of steel in coolant and by spraying the coolant to an outer surface of the bent portion.
    Type: Application
    Filed: March 16, 2016
    Publication date: March 15, 2018
    Inventors: Yutaka Wakabayashi, Ken Takahashi, Masato Sugawara, Hideki Okada
  • Publication number: 20180040565
    Abstract: According to one embodiment, the insulating layer is provided on the terrace portions. The plurality of contact portions extend through the insulating layer in the stacking direction and contact the terrace portions. The second columnar portion extends through the insulating layer and through the second stacked portion in the stacking direction, and includes a second semiconductor body contacting the first semiconductor region. The first insulating portion divides the first semiconductor region in the first direction. The first insulating portion is provided under a boundary portion between the first stacked portion and the second stacked portion.
    Type: Application
    Filed: August 3, 2017
    Publication date: February 8, 2018
    Applicant: Toshiba Memory Corporation
    Inventors: Masatoshi WATARAI, Masanori HATAKEYAMA, Takuya KUSAKA, Kazunori MASUDA, Masato ENDO, Koichi FUKUDA, Masato SUGAWARA
  • Patent number: 8564038
    Abstract: According to one embodiment, a second conductive layer is provided on a second insulating film and connected to a first conductive layer via an opening portion in the second insulating film. A first contact is connected to the second conductive layer. A third conductive layer is provided on the second insulating film and connected to the first conductive layer via an opening portion in the second insulating film. A second contact is connected to the third conductive layer. A fourth conductive layer is provided on the second insulating film and connected to the first conductive layer via an opening portion in the second insulating film. A third contact is connected to the fourth conductive layer. The floating gate layer and the first conductive layer are made of the same material, and the control gate layer, the second, third and fourth conductive layers are made of the same material.
    Type: Grant
    Filed: September 18, 2011
    Date of Patent: October 22, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Masato Sugawara
  • Patent number: 8297092
    Abstract: The reflection portion of the reflection member is moved along the inner surface in the hole of the pipe from the entrance opening of the hole of the pipe to the exit opening of the hole thereof. In this case, the reflection portion is guided by the guide portion provided at both sides of the reflection portion. The shots, which are projected toward the inner surface in the hole of the pipe, reach the reflection portion through the holes of the guide portion of the entrance side, and they are reflected toward the inner surface in the hole of the pipe. Since the shots can be reflected toward the inner surface inside in the hole of the pipe, the tendency that shots may be moved toward the inner surface outside in the hole of the curved portion can be small.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: October 30, 2012
    Assignee: NHK Spring Co., Ltd.
    Inventors: Akira Tange, Masato Sugawara, Isao Sumiyoshi, Ken Takahashi, Yutaka Wakabayashi, Masayoshi Kawai
  • Publication number: 20120241835
    Abstract: According to one embodiment, a second conductive layer is provided on a second insulating film and connected to a first conductive layer via an opening portion in the second insulating film. A first contact is connected to the second conductive layer. A third conductive layer is provided on the second insulating film and connected to the first conductive layer via an opening portion in the second insulating film. A second contact is connected to the third conductive layer. A fourth conductive layer is provided on the second insulating film and connected to the first conductive layer via an opening portion in the second insulating film. A third contact is connected to the fourth conductive layer. The floating gate layer and the first conductive layer are made of the same material, and the control gate layer, the second, third and fourth conductive layers are made of the same material.
    Type: Application
    Filed: September 18, 2011
    Publication date: September 27, 2012
    Inventor: Masato SUGAWARA
  • Patent number: 7896983
    Abstract: In a method of manufacturing a hollow stabilizer, a pipe compressing step of compressing an electroseamed pipe in a temperature range of a hot state or a warm state so as to make a rate of a thickness with respect to an outer diameter between 18 and 35% is performed, and a forming step of forming the compressed electroseamed pipe in a stabilizer shape in a cold state is executed. Next, a step of applying a heat treatment to a half-finished stabilizer is performed, a shot peening step of impacting a shot on the half-finished stabilizer is performed, and a step of coating the half-finished stabilizer is performed.
    Type: Grant
    Filed: May 9, 2006
    Date of Patent: March 1, 2011
    Assignee: NHK Spring Co., Ltd.
    Inventors: Hiroshi Koyama, Koichi Tamatsu, Masato Sugawara, Jun Umeno, Hiroshi Machida, Hiroshi Masuya, Fumiaki Kimura, Yasuaki Tsuji, Akihiro Katsuya, Takahiro Nakamura
  • Publication number: 20100281938
    Abstract: The reflection portion of the reflection member is moved along the inner surface in the hole of the pipe from the entrance opening of the hole of the pipe to the exit opening of the hole thereof. In this case, the reflection portion is guided by the guide portion provided at both sides of the reflection portion. The shots, which are projected toward the inner surface in the hole of the pipe reach the reflection portion through the holes of the guide portion of the entrance side, and they are reflected toward the inner surface in the hole of the pipe. Since the shots can be reflected toward the inner surface inside in the hole of the pipe, the tendency that shots may be moved toward the inner surface outside in the hole of the curved portion can be small.
    Type: Application
    Filed: November 14, 2008
    Publication date: November 11, 2010
    Applicant: NHK SPRING CO., LTD.
    Inventors: Akira Tange, Masato Sugawara, Isao Sumiyoshi, Ken Takahashi, Yutaka Wakabayashi, Masayoshi Kawai
  • Publication number: 20060200990
    Abstract: In a method of manufacturing a hollow stabilizer, a pipe compressing step of compressing an electroseamed pipe in a temperature range of a hot state or a warm state so as to make a rate of a thickness with respect to an outer diameter between 18 and 35% is performed, and a forming step of forming the compressed electroseamed pipe in a stabilizer shape in a cold state is executed. Next, a step of applying a heat treatment to a half-finished stabilizer is performed, a shot peening step of impacting a shot on the half-finished stabilizer is performed, and a step of coating the half-finished stabilizer is performed.
    Type: Application
    Filed: May 9, 2006
    Publication date: September 14, 2006
    Inventors: Hiroshi Koyama, Koichi Tamatsu, Masato Sugawara, Jun Umeno, Hiroshi Machida, Hiroshi Masuya, Fumiaki Kimura, Yasuaki Tsuji, Akihiro Katsuya, Takahiro Nakamura
  • Publication number: 20020170177
    Abstract: In a method of manufacturing a hollow stabilizer, a pipe compressing step of compressing an electroseamed pipe in a temperature range of a hot state or a warm state so as to make a rate of a thickness with respect to an outer diameter between 18 and 35% is performed, and a forming step of forming the compressed electroseamed pipe in a stabilizer shape in a cold state is executed. Next, a step of applying a heat treatment to a half-finished stabilizer is performed, a shot peening step of impacting a shot on the half-finished stabilizer is performed, and a step of coating the half-finished stabilizer is performed.
    Type: Application
    Filed: March 7, 2002
    Publication date: November 21, 2002
    Inventors: Hiroshi Koyama, Koichi Tamatsu, Masato Sugawara, Jun Umeno, Hiroshi Machida, Hiroshi Masuya, Fumiaki Kimura, Yasuaki Tsuji, Akihiro Katsuya, Takahiro Nakamura