Patents by Inventor Wakana Inoue
Wakana Inoue 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: 10663001Abstract: A ball bearing retainer holds balls disposed between an inner ring and an outer ring, in pockets formed at a plurality of portions, in a circumferential direction, of an annular body. The annular body includes: annular parts disposed on both sides in an axial direction; and pillar parts that are disposed at a plurality of portions in the circumferential direction and that connect between the annular parts. The pockets are formed by the annular parts and the pillar parts adjacent to each other in the circumferential direction, and allow ball guide. First contact portions of the pillar portions, which contact portions contact with the balls in the circumferential direction, are formed by first planes that extend along the axial direction, and the balls are guided by the first planes.Type: GrantFiled: March 20, 2017Date of Patent: May 26, 2020Assignee: NTN CORPORATIONInventors: Wakana Inoue, Mineo Koyama
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Patent number: 9765822Abstract: A bearing seal is fitted into a seal groove formed in an outer race, and firmly mounted to the outer race. First detent ribs and second detent ribs are formed on both surfaces of one side of a seal base plate made of rubber and having the shape of a strip. When one side of the seal base plate is fitted into the seal groove formed in an inner diameter surface of the outer race, the first detent ribs and second detent ribs come into elastic contact with the side surfaces of the seal groove, respectively, so as to prevent the bearing seal from being pulled out of the seal groove.Type: GrantFiled: July 9, 2015Date of Patent: September 19, 2017Assignee: NTN CORPORATIONInventors: Takahiro Kanamoto, Wakana Inoue
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Publication number: 20170191528Abstract: A ball bearing retainer holds balls disposed between an inner ring and an outer ring, in pockets formed at a plurality of portions, in a circumferential direction, of an annular body. The annular body includes: annular parts disposed on both sides in an axial direction; and pillar parts that are disposed at a plurality of portions in the circumferential direction and that connect between the annular parts. The pockets are formed by the annular parts and the pillar parts adjacent to each other in the circumferential direction, and allow ball guide. First contact portions of the pillar portions, which contact portions contact with the balls in the circumferential direction, are formed by first planes that extend along the axial direction, and the balls are guided by the first planes.Type: ApplicationFiled: March 20, 2017Publication date: July 6, 2017Applicant: NTN CORPORATIONInventors: Wakana INOUE, Mineo KOYAMA
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Patent number: 9534633Abstract: A double-row rolling bearing includes an outer member having two raceway surfaces on an inner circumference thereof, an inner member having two raceway surfaces on an outer circumference thereof, the inner member being arranged on an inner side of the outer member, two rows of rolling elements assembled into a space between each of the two raceway surfaces of the outer member and each of the two raceway surfaces of the inner member, and a retainer for retaining the rolling elements. Any one of the outer member and the inner member includes a pair of raceway rings, both of the pair of raceway rings being fastened with a fixing bolt and having positioning holes into which a positioning member is fit-inserted, to thereby suppress misalignment in a radial direction of the pair of raceway rings.Type: GrantFiled: October 8, 2013Date of Patent: January 3, 2017Assignee: NTN CORPORATIONInventors: Takahiro Kanamoto, Wakana Inoue
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Publication number: 20160178007Abstract: A ball guide type ball bearing retainer (3) according to the present invention retains balls (4) in pockets (Pt) provided in a circular ring portion (5), and the circular ring portion (5) includes annular portions (6, 7) disposed at both sides in an axial direction and pillar portions (8) which connect the annular portions (6, 7). Each pocket (Pt) is formed by the annular portions (6, 7) at the both sides and the pillar portions (8) adjacent to each other. At outer diameter portions of the pillar portions (8), outer diameter restriction portions (9) are provided which extend toward a pocket side and restrict and guide the balls (4) from an outer diameter side with guide surfaces (9a) thereof, and are inclined flat surfaces which are inclined so as reach a large diameter side as extending from the pillar portions (8) toward a pocket (Pt) center side.Type: ApplicationFiled: February 25, 2016Publication date: June 23, 2016Applicant: NTN CORPORATIONInventors: Mineo KOYAMA, Wakana INOUE, Futoshi KOSUGI
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Publication number: 20150308507Abstract: A bearing seal is provided which can be easily fitted into a seal groove formed in an outer race, and be kept firmly mounted to the outer race. First detent ribs and second detent ribs are formed on both surfaces of one side of a seal base plate made of rubber and having the shape of a stripe. When one side of the seal base plate is fitted into the seal groove formed in the inner diameter surface of the outer race, the first and second detent ribs come into elastic contact with the side surfaces of the seal groove, respectively, so as to prevent the bearing seal from being pulled out of the seal groove. Thus, it is possible to keep the bearing seal stably mounted to the outer race.Type: ApplicationFiled: July 9, 2015Publication date: October 29, 2015Applicant: NTN CORPORATIONInventors: Takahiro KANAMOTO, Wakana INOUE
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Publication number: 20150285308Abstract: A double-row rolling bearing includes an outer member having two raceway surfaces on an inner circumference thereof, an inner member having two raceway surfaces on an outer circumference thereof, the inner member being arranged on an inner side of the outer member, two rows of rolling elements assembled into a space between each of the two raceway surfaces of the outer member and each of the two raceway surfaces of the inner member, and a retainer for retaining the rolling elements. Any one of the outer member and the inner member includes a pair of raceway rings, both of the pair of raceway rings being fastened with a fixing bolt and having positioning holes into which a positioning member is fit-inserted, to thereby suppress misalignment in a radial direction of the pair of raceway rings.Type: ApplicationFiled: October 8, 2013Publication date: October 8, 2015Applicant: NTN CORPORATIONInventors: Takahiro Kanamoto, Wakana Inoue