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).
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Publication number: 20240312542Abstract: 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: ApplicationFiled: February 29, 2024Publication date: September 19, 2024Applicant: Kioxia CorporationInventors: Masato ENDO, Haruo MIKI, Daiki SUGAWARA
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Patent number: 11827068Abstract: 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: GrantFiled: December 10, 2020Date of Patent: November 28, 2023Assignee: NHK SPRING CO., LTD.Inventors: Masato Sugawara, Shogo Mori
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Patent number: 11786960Abstract: 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: GrantFiled: March 12, 2020Date of Patent: October 17, 2023Assignee: NHK SPRING CO., LTD.Inventors: Hiroshi Mizukami, Masato Inaba, Masato Sugawara, Michiya Masuda
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Publication number: 20220152689Abstract: 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: ApplicationFiled: March 12, 2020Publication date: May 19, 2022Inventors: Hiroshi MIZUKAMI, Masato INABA, Masato SUGAWARA, Michiya MASUDA
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Patent number: 11285776Abstract: 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: GrantFiled: September 28, 2018Date of Patent: March 29, 2022Assignee: NHK SPRING CO., LTD.Inventors: Akira Tange, Masato Sugawara, Yutaka Wakabayashi
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Publication number: 20210094379Abstract: 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: ApplicationFiled: December 10, 2020Publication date: April 1, 2021Inventors: Masato SUGAWARA, Shogo MORI
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Patent number: 10483207Abstract: 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: GrantFiled: August 3, 2017Date of Patent: November 19, 2019Assignee: Toshiba Memory CorporationInventors: Masatoshi Watarai, Masanori Hatakeyama, Takuya Kusaka, Kazunori Masuda, Masato Endo, Koichi Fukuda, Masato Sugawara
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Patent number: 10442269Abstract: 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: GrantFiled: March 16, 2016Date of Patent: October 15, 2019Assignee: NHK Spring Co., Ltd.Inventors: Yutaka Wakabayashi, Ken Takahashi, Masato Sugawara, Hideki Okada
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Patent number: 10415110Abstract: 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: GrantFiled: March 16, 2016Date of Patent: September 17, 2019Assignee: NHK Spring Co., Ltd.Inventors: Yutaka Wakabayashi, Ken Takahashi, Masato Sugawara, Hideki Okada
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Publication number: 20190030980Abstract: 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: ApplicationFiled: September 28, 2018Publication date: January 31, 2019Applicant: NHK SPRING CO., LTD.Inventors: Akira TANGE, Masato SUGAWARA, Yutaka WAKABAYASHI
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Publication number: 20180117983Abstract: 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: ApplicationFiled: March 16, 2016Publication date: May 3, 2018Inventors: Yutaka Wakabayashi, Ken Takahashi, Masato Sugawara, Hideki Okada
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Publication number: 20180073096Abstract: 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: ApplicationFiled: March 16, 2016Publication date: March 15, 2018Inventors: Yutaka Wakabayashi, Ken Takahashi, Masato Sugawara, Hideki Okada
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Publication number: 20180040565Abstract: 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: ApplicationFiled: August 3, 2017Publication date: February 8, 2018Applicant: Toshiba Memory CorporationInventors: Masatoshi WATARAI, Masanori HATAKEYAMA, Takuya KUSAKA, Kazunori MASUDA, Masato ENDO, Koichi FUKUDA, Masato SUGAWARA
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Patent number: 8564038Abstract: 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: GrantFiled: September 18, 2011Date of Patent: October 22, 2013Assignee: Kabushiki Kaisha ToshibaInventor: Masato Sugawara
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Patent number: 8297092Abstract: 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: GrantFiled: November 14, 2008Date of Patent: October 30, 2012Assignee: NHK Spring Co., Ltd.Inventors: Akira Tange, Masato Sugawara, Isao Sumiyoshi, Ken Takahashi, Yutaka Wakabayashi, Masayoshi Kawai
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Publication number: 20120241835Abstract: 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: ApplicationFiled: September 18, 2011Publication date: September 27, 2012Inventor: Masato SUGAWARA
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Patent number: 7896983Abstract: 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: GrantFiled: May 9, 2006Date of Patent: March 1, 2011Assignee: 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
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Publication number: 20100281938Abstract: 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: ApplicationFiled: November 14, 2008Publication date: November 11, 2010Applicant: NHK SPRING CO., LTD.Inventors: Akira Tange, Masato Sugawara, Isao Sumiyoshi, Ken Takahashi, Yutaka Wakabayashi, Masayoshi Kawai
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Publication number: 20060200990Abstract: 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: ApplicationFiled: May 9, 2006Publication date: September 14, 2006Inventors: Hiroshi Koyama, Koichi Tamatsu, Masato Sugawara, Jun Umeno, Hiroshi Machida, Hiroshi Masuya, Fumiaki Kimura, Yasuaki Tsuji, Akihiro Katsuya, Takahiro Nakamura
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Publication number: 20020170177Abstract: 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: ApplicationFiled: March 7, 2002Publication date: November 21, 2002Inventors: Hiroshi Koyama, Koichi Tamatsu, Masato Sugawara, Jun Umeno, Hiroshi Machida, Hiroshi Masuya, Fumiaki Kimura, Yasuaki Tsuji, Akihiro Katsuya, Takahiro Nakamura