Patents by Inventor Yusuke IGAWA
Yusuke IGAWA 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: 11154907Abstract: This powder-classifying apparatus has: a centrifugation chamber configured so as to be sandwiched between two opposing members; an air supply unit that supplies air into the centrifugation chamber and generates a swirl flow; a raw material supply unit that supplies raw-material powder into the swirl flow; a fine powder recovery unit having an opening part through which air that includes fine powder classified within the centrifugation chamber is ejected to outside of the centrifugation chamber; a coarse powder recovery unit provided to the outer edge part of the centrifugation chamber, for ejecting classified coarse powder to outside of the centrifugation chamber; and an annular slit provided to at least one of the members that constitute the centrifugation chamber, the slit being provided in a region between the center part of the centrifugation chamber and the outer edge part.Type: GrantFiled: September 14, 2018Date of Patent: October 26, 2021Assignees: NISSHIN SEIFUN GROUP INC., NISSHIN ENGINEERING INC.Inventors: Kenji Jikihara, Yusuke Igawa, Tatsuya Onishi, Toru Yoshikawa, Kazumi Kozawa
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Publication number: 20210078044Abstract: This powder-classifying apparatus has: a centrifugation chamber configured so as to be sandwiched between two opposing members; an air supply unit that supplies air into the centrifugation chamber and generates a swirl flow; a raw material supply unit that supplies raw-material powder into the swirl flow; a fine powder recovery unit having an opening part through which air that includes fine powder classified within the centrifugation chamber is ejected to outside of the centrifugation chamber; a coarse powder recovery unit provided to the outer edge part of the centrifugation chamber, for ejecting classified coarse powder to outside of the centrifugation chamber; and an annular slit provided to at least one of the members that constitute the centrifugation chamber, the slit being provided in a region between the center part of the centrifugation chamber and the outer edge part.Type: ApplicationFiled: September 14, 2018Publication date: March 18, 2021Inventors: Kenji JIKIHARA, Yusuke IGAWA, Tatsuya ONISHI, Toru YOSHIKAWA, Kazumi KOZAWA
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Patent number: 10413873Abstract: A mixing apparatus for mixing powder and liquid, includes: an apparatus main body having an internal space; a cylindrical member arranged in the internal space with one end facing upward and the other end facing downward, the one end and the other end being opened; a powder dispersing portion arranged above the apparatus main body, the powder dispersing portion dispersing the powder into a space of the cylindrical member; a liquid spraying portion arranged in a vicinity of the powder dispersing portion, the liquid spraying portion spraying the liquid into a space of the cylindrical member; a collection portion arranged below the apparatus main body, the collection portion collecting a mixed powder consisting of the powder dispersed by the powder dispersing portion and the liquid sprayed by the liquid spraying portion; a filter arranged around the cylindrical member in the internal space; and a discharge port discharging air in the internal space through the filter.Type: GrantFiled: November 14, 2016Date of Patent: September 17, 2019Assignee: NISSHIN ENGINEERING INC.Inventors: Akihiko Ema, Yusuke Igawa, Kosuke Ando
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Patent number: 9884328Abstract: A cyclone main body includes a cylinder-shaped upper barrel and an inverse cone-shaped lower barrel; a top plate which covers a top edge of the upper barrel and includes an opening at a center portion; a first introduction pipe which introduces a first fluid containing powder along an inner wall surface of the cyclone main body; a second introduction pipe which is disposed near the top plate in a portion upper than the first introduction pipe and introduces a second fluid; an exhaust pipe which is inserted in the opening of the top plate along a vertical center axis of the cyclone main body, makes an exhaust flow rise from the cyclone main body, and discharges the exhaust flow from the cyclone main body; and a collecting section which collects powder separated by turning movement of each of the first fluid and the second fluid in the cyclone main body.Type: GrantFiled: August 19, 2015Date of Patent: February 6, 2018Assignee: NISSHIN SEIFUN GROUP INC.Inventors: Kazumi Kozawa, Yusuke Igawa
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Publication number: 20170144119Abstract: Including droplet and powder which has a liquid repellent property with respect to the droplet and is attached to the surface of the droplet.Type: ApplicationFiled: November 14, 2016Publication date: May 25, 2017Applicant: NISSHIN SEIFUN GROUP INC.Inventors: Akihiko EMA, Yusuke IGAWA, Hitomi MEISAKU
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Publication number: 20170144117Abstract: A mixing apparatus for mixing powder and liquid, includes: an apparatus main body having an internal space; a cylindrical member arranged in the internal space with one end facing upward and the other end facing downward, the one end and the other end being opened; a powder dispersing portion arranged above the apparatus main body, the powder dispersing portion dispersing the powder into a space of the cylindrical member; a liquid spraying portion arranged in a vicinity of the powder dispersing portion, the liquid spraying portion spraying the liquid into a space of the cylindrical member; a collection portion arranged below the apparatus main body, the collection portion collecting a mixed powder consisting of the powder dispersed by the powder dispersing portion and the liquid sprayed by the liquid spraying portion; a filter arranged around the cylindrical member in the internal space; and a discharge port discharging air in the internal space through the filter.Type: ApplicationFiled: November 14, 2016Publication date: May 25, 2017Applicant: NISSHIN ENGINEERING INC.Inventors: Akihiko EMA, Yusuke IGAWA, Kosuke ANDO
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Publication number: 20170128957Abstract: A cyclone main body includes a cylinder-shaped upper barrel and an inverse cone-shaped lower barrel; a top plate which covers a top edge of the upper barrel and includes an opening at a center portion; a first introduction pipe which introduces a first fluid containing powder along an inner wall surface of the cyclone main body; a second introduction pipe which is disposed near the top plate in a portion upper than the first introduction pipe and introduces a second fluid; an exhaust pipe which is inserted in the opening of the top plate along a vertical center axis of the cyclone main body, makes an exhaust flow rise from the cyclone main body, and discharges the exhaust flow from the cyclone main body; and a collecting section which collects powder separated by turning movement of each of the first fluid and the second fluid in the cyclone main body.Type: ApplicationFiled: August 19, 2015Publication date: May 11, 2017Applicant: NISSHIN SEIFUN GROUP INC.Inventors: Kazumi KOZAWA, Yusuke IGAWA