Patents by Inventor Ryoichi Kurata
Ryoichi Kurata 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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Patent number: 10443653Abstract: A sliding member having a supporting layer composed of an iron-based metallic material and a sliding layer formed on a surface of the supporting layer and composed of a copper-based metallic material. The surface of the supporting layer and the sliding layer have non-flat surfaces. A sliding surface having a non-flat surface is formed on the surface of the sliding layer. The sliding layer is formed on the roughened surface of the supporting layer by thermal spraying. The surface of the sliding layer is then subjected to a shot blasting treatment to form the sliding surface which has an uneven surface having an arithmetic average roughness (Ra) of more than 0 ?m and 2.0 ?m or less, a ten-point average roughness (Rz) of more than 0 ?m and 7.5 ?m or less and a surface hardness (Hv) of 150-250, and which slidably supports an object to be slid.Type: GrantFiled: September 25, 2014Date of Patent: October 15, 2019Assignee: Senju Metal Industry Co., Ltd.Inventors: Satoshi Masuda, Takashi Akagawa, Naoki Sato, Ryoichi Kurata
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Patent number: 10309457Abstract: To provide a sliding member which has hardness that is suitable for the circumstance, to which heavy load is applied, and which is excellent in abrasion resistance property. The sliding member contains a sliding layer for slidably supporting a body to be slid, shot blasting being performed on a surface of the sliding layer, and a sliding surface formed on a surface of the sliding layer, the sliding surface having an uneven configuration with arithmetic mean roughness (Ra) of 1.0 ?m through 2.5 ?m, 10-point average roughness (Rz) of 5.0 ?m through 10.0 ?m, and surface hardness (Hv) of 220 through 250.Type: GrantFiled: March 4, 2013Date of Patent: June 4, 2019Assignee: Senju Metal Industry Co., Ltd.Inventors: Naoki Sato, Ryoichi Kurata
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Patent number: 10145415Abstract: A sliding member which has a hardness suitable for use under heavy-load conditions and which exhibits excellent abrasion resistance property. A sliding surface is formed on a surface of a sliding layer that slidably supports an object to be slid. The sliding surface is then shot-blasted and is formed to have an uneven shape exhibiting an arithmetic average roughness (Ra) of more than 0 to 2.0 ?m, a ten-point average roughness (Rz) of more than 0 to 7.5 ?m, and a surface hardness (Hv) of 150 to 250.Type: GrantFiled: September 25, 2014Date of Patent: December 4, 2018Assignee: Senju Metal Industry Co., Inc.Inventors: Naoki Sato, Ryoichi Kurata
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Patent number: 10036088Abstract: A sliding member which has joined strength that is suitable for the circumstance, to which heavy load is applied, and which is excellent in abrasion resistance property. The sliding member contains a supporting layer composed of ferrous metallic material, and a sliding layer composed of copper metallic material, which is formed on a surface of the supporting layer. The surface of the supporting layer and the sliding layer are configured not to be a plane and a sliding surface formed on a surface of the sliding layer is configured not to be a plane. The sliding layer is formed on the roughened surface of the supporting layer by thermal spraying.Type: GrantFiled: February 15, 2013Date of Patent: July 31, 2018Assignee: Senju Metal Industry Co., Ltd.Inventors: Satoshi Masuda, Takashi Akagawa, Naoki Sato, Ryoichi Kurata
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Patent number: 9956613Abstract: A sliding member having a hardness proper for an environment where a high-pressure is applied and having a good abrasion resistance. A sliding member 1 comprises a first sintered compact layer 2 formed by solidifying an iron-based metallic powder with a sinter; and a second sintered compact layer 3 formed by solidifying a copper-based metallic powder on a surface of the first sintered compact layer 2 to improve a sliding characteristic. The second sintered compact layer 3 is densified by a blast process where the powder is collided against a surface of the second sintered compact layer 3.Type: GrantFiled: October 22, 2013Date of Patent: May 1, 2018Assignee: Senju Metal Industry Co., Ltd.Inventors: Satoshi Masuda, Naoki Sato, Ryoichi Kurata
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Patent number: 9816160Abstract: To provide a Ni ball having a low ? dose and high sphericity even when it contains impurity elements other than Ni in certain amounts. The Ni ball contains an element U, a content thereof being 5 ppb or less, and an element Th, a content thereof being 5 ppb or less, wherein a purity of the Ni ball is 99.9% or more but 99.995% or less, an ? dose thereof is 0.0200 cph/cm2 or less, a content of either Pb or Bi, or a total content of both Pb and Bi is 1 ppm or more, and a sphericity thereof is 0.90 or more, in order to prevent any software errors and reduce connection failure.Type: GrantFiled: September 19, 2013Date of Patent: November 14, 2017Assignee: Senju Metal Industry Co., Ltd.Inventors: Ryoichi Kurata, Takashi Akagawa, Hiroyoshi Kawasaki
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Publication number: 20160304992Abstract: To provide a Ni ball having a low ? dose and high sphericity even when it contains impurity elements other than Ni in certain amounts. The Ni ball contains an element U, a content thereof being 5 ppb or less, and an element Th, a content thereof being 5 ppb or less, wherein a purity of the Ni ball is 99.9% or more but 99.995% or less, an ? dose thereof is 0.0200 cph/cm2 or less, a content of either Pb or Bi, or a total content of both Pb and Bi is 1 ppm or more, and a sphericity thereof is 0.90 or more, in order to prevent any software errors and reduce connection failure.Type: ApplicationFiled: September 19, 2013Publication date: October 20, 2016Applicant: Senju Metal Industry Co., Ltd.Inventors: Ryoichi KURATA, Takashi AKAGAWA, Hiroyoshi KAWASAKI
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Publication number: 20160238071Abstract: A sliding member which has a hardness suitable for use under heavy-load conditions and which exhibits excellent abrasion resistance property. A sliding surface is formed on a surface of a sliding layer that slidably supports an object to be slid. The sliding surface is then shot-blasted and is formed to have an uneven shape exhibiting an arithmetic average roughness (Ra) of more than 0 to 2.0 ?m, a ten-point average roughness (Rz) of more than 0 to 7.5 ?m, and a surface hardness (Hv) of 150 to 250.Type: ApplicationFiled: September 25, 2014Publication date: August 18, 2016Inventors: Naoki Sato, Ryoichi Kurata
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Publication number: 20160215819Abstract: A sliding member having a supporting layer composed of an iron-based metallic material and a sliding layer formed on a surface of the supporting layer and composed of a copper-based metallic material. The surface of the supporting layer and the sliding layer have non-flat surfaces. A sliding surface having a non-flat surface is formed on the surface of the sliding layer. The sliding layer is formed on the roughened surface of the supporting layer by thermal spraying. The surface of the sliding layer is then subjected to a shot blasting treatment to form the sliding surface which has an uneven surface having an arithmetic average roughness (Ra) of more than 0 ?m and 2.0 ?m or less, a ten-point average roughness (Rz) of more than 0 ?m and 7.5 ?m or less and a surface hardness (Hv) of 150-250, and which slidably supports an object to be slid.Type: ApplicationFiled: September 25, 2014Publication date: July 28, 2016Inventors: Satoshi Masuda, Takashi Akagawa, Naoki Sato, Ryoichi Kurata
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Patent number: 9393621Abstract: To provide a half bearing which has excellent abrasion resistance and surely forms an oil film under boundary lubrication in which it is difficult to form any oil film. A half bearing 1 formed on a circular arc along a direction in which the member to be slid swings is provided with a porous layer 4 composed of Cu—Sn series alloy, which is formed on a surface of a metal substrate 3, and a sliding layer 2 in which the porous layer 4 is covered with resin material 5 including at least polytetrafluoroethylene and a carbon fiber. An uneven surface 6 having a height which maintains oil to form an oil film and maintains the oil so that the oil film is formed against abrasion when a member to be slid is sliding, is formed on a surface of the sliding layer 2 slidably bearing the member to be slid.Type: GrantFiled: June 18, 2013Date of Patent: July 19, 2016Assignee: Senju Metal Industry Co., Ltd.Inventors: Naoki Sato, Ryoichi Kurata
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Publication number: 20160010198Abstract: To provide a sliding member which has joined strength that is suitable for the circumstance, to which heavy load is applied, and which is excellent in abrasion resistance property. The sliding member 1 contains a supporting layer 2 composed of ferrous metallic material, and a sliding layer 3 composed of copper metallic material, which is formed on a surface 2a of the supporting layer 2. The surface 2a of the supporting layer 2 and the sliding layer 3 are configured to be not a plane and a sliding surface 3a formed on a surface of the sliding layer 3 is configured to be not a plane. The sliding layer is formed on the roughed surface 2a of the supporting layer 2 by thermal spaying.Type: ApplicationFiled: February 15, 2013Publication date: January 14, 2016Applicant: SENJU METAL LNDUSTRY CO., LTD.Inventors: Satoshi MASUDA, Takashi AKAGAWA, Naoki SATO, Ryoichi KURATA
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Publication number: 20150323007Abstract: To provide a half bearing which has excellent abrasion resistance and surely forms an oil film under boundary lubrication in which it is difficult to form any oil film. A half bearing 1 formed on a circular arc along a direction in which the member to be slid swings is provided with a porous layer 4 composed of Cu—Sn series alloy, which is formed on a surface of a metal substrate 3, and a sliding layer 2 in which the porous layer 4 is covered with resin material 5 including at least polytetrafluoroethylene and a carbon fiber. An uneven surface 6 having a height which maintains oil to form an oil film and maintains the oil so that the oil film is formed against abrasion when a member to be slid is sliding, is formed on a surface of the sliding layer 2 slidably bearing the member to be slid.Type: ApplicationFiled: June 18, 2013Publication date: November 12, 2015Applicant: Senju Metal Industry Co., Ltd.Inventors: Naoki SATO, Ryoichi KURATA
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Patent number: 9163669Abstract: To provide a sliding member that improves seizure resistance by restraining any exposure of the porous layer and improves abrasion resistance and load resistance. The sliding member 1 constitutes a bearing having a cylindrical shape, an inner circumferential surface of which is a sliding layer 5 with an axis. In the sliding member 1, a porous layer 3 made of alloy material is formed on a surface of a metal base 2 and this porous layer 3 is covered by resin material 4 so that the sliding layer 5 is formed. In the sliding member 1, a particle size of metal powder 30 forming the porous layer 3 is within a range of 15 through 60 ?m, preferably, about 25 through 45 ?m. Further, in the sliding member 1, a thickness of the porous layer 3 is within a range of 0.06 through 0.1 mm and a thickness of the sliding layer 5 is within a range of 0.08 through 0.16 mm The thickness of the sliding layer 5 is set to be thicker on average than the thickness of the porous layer 3 so that the porous layer 3 is not exposed.Type: GrantFiled: December 22, 2011Date of Patent: October 20, 2015Assignee: Senju Metal Industry Co., Ltd.Inventors: Ryoichi Kurata, Kenzo Tadokoro, Kazushige Kumagai
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Publication number: 20150273584Abstract: A sliding member having a hardness proper for an environment where a high-pressure is applied and having a good abrasion resistance. A sliding member 1 comprises a first sintered compact layer 2 formed by solidifying an iron-based metallic powder with a sinter; and a second sintered compact layer 3 formed by solidifying a copper-based metallic powder on a surface of the first sintered compact layer 2 to improve a sliding characteristic. The second sintered compact layer 3 is densified by a blast process where the powder is collided against a surface of the second sintered compact layer 3.Type: ApplicationFiled: October 22, 2013Publication date: October 1, 2015Applicant: SENJU METAL INDUSTRY CO., LTD.Inventors: Satoshi Masuda, Naoki Sato, Ryoichi Kurata
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Publication number: 20150049966Abstract: To provide a sliding member which has hardness that is suitable for the circumstance, to which heavy load is applied, and which is excellent in abrasion resistance property. The sliding member contains a sliding layer for slidably supporting a body to be slid, shot blasting being performed on a surface of the sliding layer, and a sliding surface formed on a surface of the sliding layer, the sliding surface having an uneven configuration with arithmetic mean roughness (Ra) of 1.0 ?m through 2.5 ?m, 10-point average roughness (Rz) of 5.0 ?m through 10.0 ?m, and surface hardness (Hv) of 220 through 250.Type: ApplicationFiled: March 4, 2013Publication date: February 19, 2015Applicant: Senju Metaal Industry Co., Ltd.Inventors: Naoki Sato, Ryoichi Kurata
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Patent number: 8887980Abstract: When electrodes of a BGA plated by electroless Ni plating are soldered with solder balls of a lead-free solder, peeling of soldered joints readily takes place under an external impact. When a BGA electrode plated by electroless Ni plating is soldered with a lead-free solder to which 0.03-0.1 mass percent of P is added, the growth of brittle SnNi intermetallic compounds formed on the portion being soldered and a P layer on the electroless Ni plating surface is suppressed, resulting in an increased bonding strength.Type: GrantFiled: June 10, 2005Date of Patent: November 18, 2014Assignee: Senju Metal Industry Co., Ltd.Inventors: Ryoichi Kurata, Daisuke Soma, Hiroshi Okada
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Patent number: 8727622Abstract: To provide a sliding member which can control a relationship between dynamic friction force and static friction force, a sliding member 1 constitutes a bearing having a cylindrical shape and its internal circumferential surface is a sliding layer 2 along a shaft. The sliding member 1 is provided a surface of the sliding layer 2 with uneven surface 6. The uneven surface 6 has the line-like projections 6a, vertexes of which are arranged in gridlike fashion, in the embodiment, to prevent an oil film from being formed and to make the dynamic friction force larger and keep the rate of change in the dynamic friction force in relation to the static friction force smaller. The sliding layer is configured so that a porous layer made of alloy material is formed on a surface of a metal substrate and the resin filled into the porous layer is sintered.Type: GrantFiled: April 25, 2012Date of Patent: May 20, 2014Assignee: Senju Metal Industry Co., Ltd.Inventors: Ryoichi Kurata, Kenzo Tadokoro, Hideaki Tanibata
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Publication number: 20140099048Abstract: To provide a sliding member that improves seizure resistance by restraining any exposure of the porous layer and improves abrasion resistance and load resistance. The sliding member 1 constitutes a bearing having a cylindrical shape, an inner circumferential surface of which is a sliding layer 5 with an axis. In the sliding member 1, a porous layer 3 made of alloy material is formed on a surface of a metal base 2 and this porous layer 3 is covered by resin material 4 so that the sliding layer 5 is formed. In the sliding member 1, a particle size of metal powder 30 forming the porous layer 3 is within a range of 15 through 60 ?m, preferably, about 25 through 45 ?m. Further, in the sliding member 1, a thickness of the porous layer 3 is within a range of 0.06 through 0.1 mm and a thickness of the sliding layer 5 is within a range of 0.08 through 0.16 mm The thickness of the sliding layer 5 is set to be thicker on average than the thickness of the porous layer 3 so that the porous layer 3 is not exposed.Type: ApplicationFiled: December 22, 2011Publication date: April 10, 2014Applicant: SENJU METAL INDUSTRY CO., LTD.Inventors: Ryoichi Kurata, Kenzo Tadokoro, Kazushige Kumagai
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Publication number: 20140064641Abstract: To provide a sliding member which can control a relationship between dynamic friction force and static friction force. A sliding member 1 constitutes a bearing having a cylindrical shape and its internal circumferential surface is a sliding layer 2 along a shaft. The sliding member 1 is provided a surface of the sliding layer 2 with uneven surface 6. The uneven surface 6 has the line-like projections 6a, vertexes of which are arranged in gridlike fashion, in the embodiment, to prevent an oil film from being formed and to make the dynamic friction force larger and keep the rate of change in the dynamic friction force in relation to the static friction force smaller. The sliding layer is configured so that a porous layer made of alloy material is formed on a surface of a metal substrate and the resin filled into the porous layer is sintered.Type: ApplicationFiled: April 25, 2012Publication date: March 6, 2014Applicant: SENJU METAL INDUSTRY CO., LTD.Inventors: Ryoichi Kurata, Kenzo Tadokoro, Hideaki Tanibata
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Patent number: 8339455Abstract: According to one embodiment, a monitoring system is provided, which has a personal authentication unit and a camera. The personal authentication unit is provided near a security gate and authenticates a person allowed to pass through the security gate. The camera photographs an area near the security gate, in which the personal authentication unit is provided. The monitoring system further has a data generation unit configured to generate personal attribute data about the person authenticated by the personal authentication unit, a person identification unit configured to identify the person authenticated, on the basis of video data generated by the camera, and a monitoring data generation unit configured to generate monitoring data composed of video data and metadata. The video data represents an image including the person identified by the person identification unit. The metadata is associated with the video data and containing the personal attribute data.Type: GrantFiled: December 23, 2009Date of Patent: December 25, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Kenji Baba, Takaaki Enohara, Yusuke Takahashi, Yoshihiko Suzuki, Akira Sawada, Nobutaka Nishimura, Ryoichi Kurata