Patents by Inventor Mitsuhisa AKASHI
Mitsuhisa AKASHI 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: 11433506Abstract: A wheel brush (1) includes a grinding element bundle holder (3) having an annular grinding element bundle-holding surface (12) that faces the outer circumferential side and a plurality of grinding element bundles (4) that are formed by gathering a plurality of wire-shaped grinding elements (5). The grinding element bundle-holding surface (12) has a plurality of holding holes (16) arrayed in a circumferential direction (R), the grinding element bundles (4) protrude to the outer circumferential side from the grinding element bundle-holding surface (12) while one end portions are inserted into the holding holes (16). First protrusions (18) protruding to the outer circumferential direction are provided on first opening edge portions (17a) adjacent to the holding holes 16 at a first direction (L1) side in the rotational center line direction orthogonal to the circumferential direction R (R) in opening edges of the holding holes (16) in the grinding element bundle-holding surface (12).Type: GrantFiled: July 15, 2016Date of Patent: September 6, 2022Assignees: TAIMEI CHEMICALS CO., LTD., XEBEC TECHNOLOGY CO., LTD.Inventors: Mitsuhisa Akashi, Koji Sato
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Publication number: 20190291244Abstract: A wheel brush (1) includes a grinding element bundle holder (3) having an annular grinding element bundle-holding surface (12) that faces the outer circumferential side and a plurality of grinding element bundles (4) that are formed by gathering a plurality of wire-shaped grinding elements (5). The grinding element bundle-holding surface (12) has a plurality of holding holes (16) arrayed in a circumferential direction (R), the grinding element bundles (4) protrude to the outer circumferential side from the grinding element bundle-holding surface (12) while one end portions are inserted into the holding holes (16). First protrusions (18) protruding to the outer circumferential direction are provided on first opening edge portions (17a) adjacent to the holding holes 16 at a first direction (L1) side in the rotational center line direction orthogonal to the circumferential direction R (R) in opening edges of the holding holes (16) in the grinding element bundle-holding surface (12).Type: ApplicationFiled: July 15, 2016Publication date: September 26, 2019Inventors: Mitsuhisa AKASHI, Koji SATO
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Patent number: 10399207Abstract: A polishing brush (4) includes a grinding element bundle (9) formed with a plurality of wire-shaped grinding elements (28) formed by impregnating and solidifying an assembly of inorganic filaments with resin, and a grinding element holder (7) having a holding hole (20) holding the base end portion of the grinding element bundle 9 on an outer peripheral side surface (7c) serving as a grinding element-holding surface. The grinding element bundle (9) has a front surface (9a) facing forward in a rotational direction (R1) and a back surface (9b) facing backward. The grinding element bundle (9) is held in the grinding element holder (7) such that the front surface (9a) and the back surface (9b) are inclined in the same direction relative to a virtual surface (30) that includes a center point (P) of a cross section (9d) of the grinding element bundle (9) cut across an outer peripheral side surface (7c) and the axis of center of rotation (L) of the grinding element holder (7) and extends in a radial direction.Type: GrantFiled: October 27, 2014Date of Patent: September 3, 2019Assignees: TAIMEI CHEMICALS CO., LTD., XEBEC TECHNOLOGY CO., LTD.Inventors: Mitsuhisa Akashi, Norihiko Sumiyoshi
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Patent number: 10315290Abstract: A polishing brush (1) includes a brush-shaped grindstone (12) holding grinding element bundles (11) of wire-shaped grinding elements (27) in an annular shape and a grinding element displacement-restricting member (13) for restricting displacement of the grinding element bundles (11) outward. The brush-shaped grindstone (12) has a grinding element holder (15) holding the base end portions (upper end portions) of the grinding element bundles (11). The grinding element displacement-restricting member (13) has an annular part (33) surrounding the wire-shaped grinding elements (27) from the outer peripheral side at a position between the tip ends of the wire-shaped grinding elements (27) and the grinding element holder (15) in the direction of the axis of center of rotation (L) and at a distance away from the tip ends of the wire-shaped grinding elements (27) and the grinding element holder (15).Type: GrantFiled: October 27, 2014Date of Patent: June 11, 2019Assignees: TAIMEI CHEMICALS CO., LTD., XEBEC TECHNOLOGY CO., LTD.Inventors: Mitsuhisa Akashi, Norihiko Sumiyoshi
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Patent number: 10159331Abstract: A polishing brush (1) includes a plurality of linear abrasive members (32) each formed by hardening an aggregated yarn of inorganic filaments by a resin binder, and a holder (2) that holds the linear abrasive members (32). The linear abrasive members (32) are held by a base (31). The base (31) is secured to a spindle (25) in the holder (2). In the spindle (25), a flow path (28) for discharging a liquid cutting agent toward a side on which free ends (33) of the linear abrasive members (32) are located is provided.Type: GrantFiled: June 24, 2014Date of Patent: December 25, 2018Assignees: TAIMEI CHEMICALS CO., LTD., XEBEC TECHNOLOGY CO., LTD.Inventors: Mitsuhisa Akashi, Norihiko Sumiyoshi
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Publication number: 20170312888Abstract: A polishing brush (1) includes a brush-shaped grindstone (12) holding grinding element bundles (11) of wire-shaped grinding elements (27) in an annular shape and a grinding element displacement-restricting member (13) for restricting displacement of the grinding element bundles (11) outward. The brush-shaped grindstone (12) has a grinding element holder (15) holding the base end portions (upper end portions) of the grinding element bundles (11). The grinding element displacement-restricting member (13) has an annular part (33) surrounding the wire-shaped grinding elements (27) from the outer peripheral side at a position between the tip ends of the wire-shaped grinding elements (27) and the grinding element holder (15) in the direction of the axis of center of rotation (L) and at a distance away from the tip ends of the wire-shaped grinding elements (27) and the grinding element holder (15).Type: ApplicationFiled: October 27, 2014Publication date: November 2, 2017Inventors: Mitsuhisa AKASHI, Norihiko SUMIYOSHI
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Publication number: 20170304997Abstract: A polishing brush (4) includes a grinding element bundle (9) formed with a plurality of wire-shaped grinding elements (28) formed by impregnating and solidifying an assembly of inorganic filaments with resin, and a grinding element holder (7) having a holding hole (20) holding the base end portion of the grinding element bundle 9 on an outer peripheral side surface (7c) serving as a grinding element-holding surface. The grinding element bundle (9) has a front surface (9a) facing forward in a rotational direction (R1) and a back surface (9b) facing backward. The grinding element bundle (9) is held in the grinding element holder (7) such that the front surface (9a) and the back surface (9b) are inclined in the same direction relative to a virtual surface (30) that includes a center point (P) of a cross section (9d) of the grinding element bundle (9) cut across an outer peripheral side surface (7c) and the axis of center of rotation (L) of the grinding element holder (7) and extends in a radial direction.Type: ApplicationFiled: October 27, 2014Publication date: October 26, 2017Inventors: Mitsuhisa AKASHI, Norihiko SUMIYOSHI
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Publication number: 20160128461Abstract: A polishing brush (1) includes a plurality of linear abrasive members (32) each formed by hardening an aggregated yarn of inorganic filaments by a resin binder, and a holder (2) that holds the linear abrasive members (32). The linear abrasive members (32) are held by a base (31). The base (31) is secured to a spindle (25) in the holder (2). In the spindle (25), a flow path (28) for discharging a liquid cutting agent toward a side on which free ends (33) of the linear abrasive members (32) are located is provided.Type: ApplicationFiled: June 24, 2014Publication date: May 12, 2016Inventors: Mitsuhisa AKASHI, Norihiko SUMIYOSHI
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Publication number: 20160016293Abstract: A brush-like grinding stone (1) includes a linear grinding member (11) obtained by stiffening, with a resin binder, a composite yarn including inorganic filaments. As the linear grinding member (11), a linear grinding member (11A) having a square cross-sectional shape, a linear grinding member (11B) having a rectangular cross-sectional shape, or a linear grinding member (11C) having an elliptical cross-sectional shape is used. While the linear grinding member (11A) is hard to bend in the diagonal directions of the cross section, the linear grinding member (11B) and the linear grinding member (11C) are hard to bend in directions along the long side and the major axis, respectively, of the cross section. Thus, each of the linear grinding members (11A to 11C) has an edge effect and provides high grading performance.Type: ApplicationFiled: March 7, 2014Publication date: January 21, 2016Inventors: Suguru MATSUSHITA, Mitsuhisa AKASHI
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Patent number: D810446Type: GrantFiled: September 9, 2016Date of Patent: February 20, 2018Assignees: TAIMEI CHEMICALS CO., LTD., XEBEC TECHNOLOGY CO., LTD.Inventors: Mitsuhisa Akashi, Koji Sato
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Patent number: D811092Type: GrantFiled: September 9, 2016Date of Patent: February 27, 2018Assignees: TAIMEI CHEMICALS CO., LTD., XEBEC TECHNOLOGY CO., LTD.Inventors: Mitsuhisa Akashi, Koji Sato
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Patent number: D841334Type: GrantFiled: September 9, 2016Date of Patent: February 26, 2019Assignees: TAIMEI CHEMICALS CO., LTD., XEBEC TECHNOLOGY CO., LTD.Inventors: Mitsuhisa Akashi, Koji Sato