Patents by Inventor Masato Nagano
Masato Nagano 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: 11952646Abstract: Provided is a grain-oriented electrical steel sheet including a base steel sheet, an intermediate layer which is disposed in contact with the base steel sheet and mainly includes silicon oxide, and an insulation coating which is disposed in contact with the intermediate layer and mainly includes phosphate and colloidal silica, in which the base steel sheet contains predetermined chemical composition, BN having an average particle size of 50 to 300 nm is present, when an emission intensity of B is measured using glow discharge emission analysis, predetermined conditions are satisfied, and a ratio of a major axis to a minor axis of BN is 1.5 or less.Type: GrantFiled: January 16, 2020Date of Patent: April 9, 2024Assignee: NIPPON STEEL CORPORATIONInventors: Masato Yasuda, Yoshihiro Arita, Masaru Takahashi, Yoshiyuki Ushigami, Shohji Nagano
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Publication number: 20180066711Abstract: A seal device of a vehicle wheel-bearing unit includes a leak prevention seal lip and a scatter prevention seal lip, wherein a front end part of the leak prevention seal lip is in slidable contact with an axially inboard surface of a rotational-side flange in a state of having an interference throughout an entire circumference, and an axially middle part of the scatter prevention seal lip is provided at a radially more outer position than an indifferentiable part that is present between an axially inboard surface of a thick wall part and an axially inboard surface of a thin wall part and in a state where the axially middle part of the scatter prevention seal lip is radially overlapped with the indifferentiable part.Type: ApplicationFiled: February 29, 2016Publication date: March 8, 2018Applicant: NSK Ltd.Inventors: Tatsuo WAKABAYASHI, Akinobu TAKAYAMA, Masato NAGANO, Yasuhiro MAEDA, Kazuo SEKINO
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Patent number: 9091303Abstract: Construction is achieved that is able to prevent strain deformation in the axial direction of a flat plate section 21 of a cover 19a when a cylinder section 20 of the cover 19a, which covers the opening on the inside end in the axial direction of an internal space where an encoder 1 is located, is fitted into and fastened to the inside end section in the axial direction of an outer ring 7. A non-contact section 26a is formed all the way around the inside end section in the axial direction of the cylinder section 20 such that the outer diameter is smaller than the inner diameter of the inside end section in the axial direction of the outer ring, and the dimension L26 in the axial direction is two times or more the thickness dimension t19 of a plate member of the cover 19a.Type: GrantFiled: May 16, 2014Date of Patent: July 28, 2015Assignee: NSK LTD.Inventors: Jyunya Inohae, Yoshio Kaneko, Masato Nagano
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Patent number: 8882358Abstract: Construction is achieved that is able to prevent strain deformation in the axial direction of a flat plate section 21 of a cover 19a when a cylinder section 20 of the cover 19a, which covers the opening on the inside end in the axial direction of an internal space where an encoder 1 is located, is fitted into and fastened to the inside end section in the axial direction of an outer ring 7. A non-contact section 26a is formed all the way around the inside end section in the axial direction of the cylinder section 20 such that the outer diameter is smaller than the inner diameter of the inside end section in the axial direction of the outer ring, and the dimension L26 in the axial direction is two times or more the thickness dimension t19 of a plate member of the cover 19a.Type: GrantFiled: February 7, 2011Date of Patent: November 11, 2014Assignee: NSK Ltd.Inventors: Jyunya Inohae, Yoshio Kaneko, Masato Nagano
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Publication number: 20140248013Abstract: Construction is achieved that is able to prevent strain deformation in the axial direction of a flat plate section 21 of a cover 19a when a cylinder section 20 of the cover 19a, which covers the opening on the inside end in the axial direction of an internal space where an encoder 1 is located, is fitted into and fastened to the inside end section in the axial direction of an outer ring 7. A non-contact section 26a is formed all the way around the inside end section in the axial direction of the cylinder section 20 such that the outer diameter is smaller than the inner diameter of the inside end section in the axial direction of the outer ring, and the dimension L26 in the axial direction is two times or more the thickness dimension t19 of a plate member of the cover 19a.Type: ApplicationFiled: May 16, 2014Publication date: September 4, 2014Applicant: NSK LTD.Inventors: Jyunya INOHAE, Yoshio KANEKO, Masato NAGANO
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Publication number: 20130209016Abstract: Construction is achieved that is able to prevent strain deformation in the axial direction of a flat plate section 21 of a cover 19a when a cylinder section 20 of the cover 19a, which covers the opening on the inside end in the axial direction of an internal space where an encoder 1 is located, is fitted into and fastened to the inside end section in the axial direction of an outer ring 7. A non-contact section 26a is formed all the way around the inside end section in the axial direction of the cylinder section 20 such that the outer diameter is smaller than the inner diameter of the inside end section in the axial direction of the outer ring, and the dimension L26 in the axial direction is two times or more the thickness dimension t19 of a plate member of the cover 19a.Type: ApplicationFiled: February 7, 2011Publication date: August 15, 2013Applicant: NSK LTD.Inventors: Jyunya Inohae, Yoshio Kaneko, Masato Nagano
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Publication number: 20090263065Abstract: There is provided a bearing unit including one raceway ring 2 which is mounted on a vehicle body, the other raceway ring 4 which is disposed to face the one raceway ring 2 and is mounted on a wheel, and a plurality of rolling elements 6, 8 which are built in rollably between an outer ring raceway 2s and an inner ring raceway 4s which are formed continuously on facing surfaces of both the raceway rings 2, 4, respectively, along a circumferential direction, at least either of the raceway rings 2, 4 having a connecting flange 12a or a mounting flange 12a at which the raceway ring is mounted on the vehicle body or the wheel, wherein both the raceway rings 2, 4 are formed entirely through cold forging with no machining given to a surface of the flange 2a, 12a, while a quenching and tempering treatment by electromagnetic induction and grinding are given to at least the outer ring raceway 2s and the outer ring raceway 4s.Type: ApplicationFiled: August 7, 2007Publication date: October 22, 2009Applicant: NSK Ltd.Inventors: Kazuto Kobayashi, Yuu Yasuda, Kiyoshi Ootsuka, Masato Nagano, Kenichi Nagai, Tatsuo Wakabayashi
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Patent number: 5142265Abstract: A positive temperature coefficient thermistor device includes an insulating casing housing a pair of positive temperature coefficient thermistors. Each of the inner surfaces of a pair of opposed walls consisting of the side walls and the top and bottom walls of the case is provided with a recess formed of at least one pair of tapered surfaces sloping from the walls provided with a pair of electrodes towards a common electrode located in the center. The thermistors are arranged so that the rim thereof has at least a one-point contact with the tapered surfaces of the recesses.Type: GrantFiled: March 12, 1991Date of Patent: August 25, 1992Assignee: Nippon Oil & Fats Co., Ltd.Inventors: Yoshimitsu Motoyoshi, Masato Nagano
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Patent number: 5077632Abstract: The present invention provides a ceramic having a first region comprising a dielectric porcelain having an insulating layer at the crystal grain boundary of a semiconductor porcelain containing 0.50 to 5.30 mol parts of MnO.sub.2 and 0.02 to 0.40 mol parts of Y.sub.2 O.sub.3 per 100 mol parts of the principal components comprising 49.50 to 54.00 mol. % of TiO.sub.2 and 50.50 to 46.00 mol. % of SrO, and a second region comprising a dielectric porcelain containing further 0.40 to 5.00 mol parts of Al.sub.2 O.sub.3 and 0.05 to 2.00 mol parts of SiO.sub.2 per 100 mol parts of the principal components in addition to the composition of the first region, and also provides a circuit substrate and an electronic circuit substrate using the same ceramic.Type: GrantFiled: October 23, 1990Date of Patent: December 31, 1991Assignees: Canon Kabushiki Kaisha, Nippon Oil & Fats Co., Ltd.Inventors: Motoo Kumagai, Keiichi Kato, Masato Nagano, Michiaki Sakaguchi
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Patent number: 5041327Abstract: A ceramic comprising a first region comprises a dielectric porcelain having an insulating layer at the crystal grain boundary of a semiconductor porcelain containing 0.50-5.30 mol parts of MnO.sub.2 and 0.02-0.40 mol parts of Y.sub.2 O.sub.3 per 100 mol parts of a principal components consisting of 49.50-54.00 mol % of TiO.sub.2 and 50.50-46.00 mol % of SrO, and a second region comprising a dielectric porcelain containing further 0.40-5.00 mol parts of Al.sub.2 O.sub.3, based on 100 mol parts of said principal components, in addition to the composition of the first region.Type: GrantFiled: April 25, 1990Date of Patent: August 20, 1991Assignees: Canon Kabushiki Kaisha, Nippon Oil & Fats Co., Ltd.Inventors: Motoo Kumagai, Keiichi Kato, Masato Nagano, Michiaki Sakaguchi
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Patent number: 5034260Abstract: A ceramic comprises a first region comprising a dielectric porcelain having an insulating layer at the crystal grain boundary of a semiconductor porcelain containing 0.50-5.30 mol parts of MnO.sub.2 and 0.02-0.40 mol parts of Y.sub.2 O.sub.3 per 100 mol parts of a principal components consisting of 49.50-54.00 mol % of TiO.sub.2 and 50.50-46.00 mol % of SrO, and a second region comprising a dielectric porcelain containing further 0.40-5.00 mol parts of M.sub.g O, based on 100 mol parts of said principal components, in addition to the composition of the first region.Type: GrantFiled: June 18, 1990Date of Patent: July 23, 1991Assignees: Canon Kabushiki Kaisha, Nippon Oil & Fats Co., Ltd.Inventors: Motoo Kumagai, Keiichi Kato, Masato Nagano, Michiaki Sakaguchi
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Patent number: 5006957Abstract: A ceramic-forming composition comprises from 2.0 to 5.0 mol parts of MnO.sub.2 and from 0.05 to 0.30 mol part of Y.sub.2 O.sub.3 based on 100 mol parts of a main component comprising from 50.20 to 53.50 mol % of TiO.sub.2 and from 49.80 to 46.50 mol % of SrO. A semiconductor porcelain substrate, a dielectric porcelain substrate and a capacitor are produced by using the same ceramic-forming composition.Type: GrantFiled: June 7, 1990Date of Patent: April 9, 1991Assignees: Canon Kabushiki Kaisha, Nippon Oil & Fats Co., Ltd.Inventors: Motoo Kumagai, Keiichi Kato, Humio Takeuti, Masato Nagano, Michiaki Sakaguchi
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Patent number: 4992399Abstract: The present invention provides a ceramic having a first region comprising a dielectric porcelain having an insulating layer at the crystal grain boundary of a semiconductor porcelain containing 0.50 to 5.30 mol parts of MnO.sub.2 and 0.02 to 0.40 mol parts of Y.sub.2 O.sub.3 per 100 mol parts of the principal components comprising 49.50 to 54.00 mol % of TiO.sub.2 and 50.50 to 46.00 mol % of SrO, and a second region comprising a dielectric porcelain containing further 0.40 to 5.00 mol parts of Al.sub.2 O.sub.3 and 0.05 to 2.00 mol parts of SiO.sub.2 per 100 mol parts of the principal components in addition to the composition of the first region, and also provides a circuit substrate and an electronic circuit substrate using the same ceramic.Type: GrantFiled: June 21, 1988Date of Patent: February 12, 1991Assignees: Canon Kabushiki Kaisha, Nippon Oil & Fats Co., Ltd.Inventors: Motoo Kumagai, Keiichi Kato, Masato Nagano, Michiaki Sakaguchi
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Patent number: 4952538Abstract: A ceramic comprises a first region comprising a dielectric porcelain having an insulating layer at the crystal grain boundary of a semiconductor porcelain containing 0.50-5.30 mol parts of MnO.sub.2 and 0.02-0.40 mol parts of Y.sub.2 O.sub.3 per 100 mol parts of a principal components consisting of 49.50-54.00 mol % of TiO.sub.2 and 50.50-46.00 mol % of SrO, and a second region comprising a dielectric porcelain containing further 0.40-5.00 mol parts of MgO, based on 100 mol parts of said principal components, in addition to the composition of the first region.Type: GrantFiled: June 30, 1988Date of Patent: August 28, 1990Assignees: Canon Kabushiki Kaisha, Nippon Oil & Fats Co., Ltd.Inventors: Motoo Kumagai, Keiichi Kato, Masato Nagano, Michiaki Sakaguchi
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Patent number: 4943469Abstract: The present invention provides a ceramic having a first region comprising a dielectric porcelain having an insulating layer at the crystal grain boundary of a semiconductor porcelain containing 0.50 to 5.30 mol parts of MnO.sub.2 and 0.02 to 0.40 mol parts of Y.sub.2 O.sub.3 per 100 mol parts of the principal components comprising 49.50 to 54.00 mol% of TiO.sub.2 and 50.50 to 46.00 mol% of SrO, and a second region comprising a dielectric porcelain containing further 0.40 to 5.00 mol parts of MgO and 0.05 to 2.00 mol parts of SiO.sub.2 per 100 mol parts of the principal components in addition to the composition of the first region, and also provides a circuit substrate and an electronic circuit substrate using the same ceramic.Type: GrantFiled: July 7, 1988Date of Patent: July 24, 1990Assignees: Canon Kabushiki Kaisha, Nippon Oil & Fats Co. Ltd.Inventors: Motoo Kumagai, Keiichi Kato, Masato Nagano, Michiaki Sakaguchi
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Patent number: 4942079Abstract: A ceramic comprising a first region comprises a dielectric porcelain having an insulating layer at the crystal grain boundary of a semiconductor porcelain containing 0.50-5.30 mol parts of MnO.sub.2 and 0.02-0.40 mol parts of Y.sub.2 O.sub.3 per 100 mol parts of a principal components consisting of 49.50-54.00 mol % of TiO.sub.2 and 50.50-46.00 mol % of SrO, and a second region comprising a dielectric porcelain containing further 0.40-5.00 mol parts of Al.sub.2 O.sub.3, based on 100 mol parts of said principal components, in addition to the composition of the first region.Type: GrantFiled: June 16, 1988Date of Patent: July 17, 1990Assignees: Canon Kabushiki Kaisha, Nippon Oil & Fats Co. Ltd.Inventors: Motoo Kumagai, Keiichi Kato, Masato Nagano, Michiaki Sakaguchi
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Patent number: 4736230Abstract: A composition for semiconductor porcelain comprisies:(a) 35.5 to 70 mol % of MgTiO.sub.3,(b) 26.5 to 61 mol % of BaTiO.sub.3,(c) a grain boundary improver, and(d) 0.01 to 0.2 mol % of an element selected from rare earth elements and the elements belonging to the group V of the periodic table.Type: GrantFiled: April 15, 1986Date of Patent: April 5, 1988Assignees: Canon Kabushiki Kaisha, Nippon Oil & Fats Co., Ltd.Inventors: Motoo Kumagai, Masato Nagano, Michiaki Sakaguchi