Patents by Inventor Norichika Kai
Norichika Kai 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: 10625268Abstract: A mill roller (6) is provided with a roller main body (62) that rotates about an inclined axis line (O2) and has an outer peripheral surface (64) for pulverizing an object to be crushed against the mill table (4). The outer peripheral surface (64) is convex outward in a radial direction of the roller main body (62). The outer peripheral surface (64) has a first outer peripheral surface (641) and a second outer peripheral surface (642). The first outer peripheral surface (641) has an arcuate shape formed to have the same radius of curvature on both sides of a maximum outer diameter point (A). The second outer peripheral surface (642) is further receded inward in the radial direction than an imaginary circle running along the first outer peripheral surface (641).Type: GrantFiled: November 24, 2015Date of Patent: April 21, 2020Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Kenichi Arima, Shinji Matsumoto, Takuichiro Daimaru, Kazushi Fukui, Daisuke Ishimoto, Hideyuki Hamaya, Hidechika Uchida, Norichika Kai
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Patent number: 10589280Abstract: A mill roller (6) is provided with a roller main body (62) that rotates about an inclined axis line (O2) and has an outer peripheral surface (64) for pulverizing an object to be crushed against the mill table (4). The outer peripheral surface (64) is convex outward in a radial direction of the roller main body (62). The outer peripheral surface (64) has a first outer peripheral surface (641) and a second outer peripheral surface (642). The first outer peripheral surface (641) has an arcuate shape formed to have the same radius of curvature on both sides of a maximum outer diameter point (A). The second outer peripheral surface (642) is further receded inward in the radial direction than an imaginary circle running along the first outer peripheral surface (641).Type: GrantFiled: November 24, 2015Date of Patent: March 17, 2020Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Kenichi Arima, Shinji Matsumoto, Takuichiro Daimaru, Kazushi Fukui, Daisuke Ishimoto, Hideyuki Hamaya, Hidechika Uchida, Norichika Kai
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Publication number: 20180050342Abstract: A mill roller (6) is provided with a roller main body (62) that rotates about an inclined axis line (O2) and has an outer peripheral surface (64) for pulverizing an object to be crushed against the mill table (4). The outer peripheral surface (64) is convex outward in a radial direction of the roller main body (62). The outer peripheral surface (64) has a first outer peripheral surface (641) and a second outer peripheral surface (642). The first outer peripheral surface (641) has an arcuate shape formed to have the same radius of curvature on both sides of a maximum outer diameter point (A). The second outer peripheral surface (642) is further receded inward in the radial direction than an imaginary circle running along the first outer peripheral surface (641).Type: ApplicationFiled: November 24, 2015Publication date: February 22, 2018Inventors: Kenichi ARIMA, Shinji MATSUMOTO, Takuichiro DAIMARU, Kazushi FUKUI, Daisuke ISHIMOTO, Hideyuki HAMAYA, Hidechika UCHIDA, Norichika KAI
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Patent number: 8899163Abstract: A biomass pulverizing apparatus includes a pulverizing apparatus body including a feedstock supply pipe, the pulverizing apparatus body for supplying biomass feedstock from above in a vertical axial direction, a pulverizing table for placing the biomass feedstock, a drive section for rotationally driving the pulverizing table, a pulverizing roller for pulverizing the biomass feedstock by a pressing force, the pulverizing roller being operated in conjunction with the rotation of the pulverizing table, a blower unit for forming an upward flow upward from below on the outer peripheral side of the pulverizing table so as to jet conveying gas for conveying the pulverized biomass powder in an air stream, a classifier, the classifier for classifying the biomass powder accompanied with the conveying gas, and a blowing gas introduction section.Type: GrantFiled: May 12, 2011Date of Patent: December 2, 2014Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Kazuhiro Takeuchi, Takuichiro Daimaru, Masaaki Kinoshita, Yoshiki Yamaguchi, Norichika Kai
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Publication number: 20140076210Abstract: The present invention includes: a mill main body with a material feed pipe for feeding a biomass material from above in a vertical axis direction; a mill table on which the fed biomass material is placed; a drive unit rotating and driving the mill table; a mill roller that operates in conjunction with rotation of the mill table to mill the biomass material by a pressing force; and a ventilation means that forms an upward flow to blow out a carrier gas to convey milled biomass powder, wherein the mill main body has a barrel part decreased in diameter in the middle thereof in the vertical axis direction, and the mill main body has on a top plate thereof a plurality of discharge tubes circumferentially arranged for discharging the biomass powder on a line extended from the diameter-decreased barrel part in the vertical axis direction.Type: ApplicationFiled: September 30, 2011Publication date: March 20, 2014Inventors: Takuichiro Daimaru, Tsugio Yamamoto, Kenichi Arima, Masaaki Kinoshita, Kazuhiro Tekeuchi, Norichika Kai, Yoshishige Uematsu
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Publication number: 20130055935Abstract: A biomass pulverizing apparatus includes a pulverizing apparatus body including a feedstock supply pipe for supplying biomass feedstock from above in a vertical axial direction, a pulverizing table for placing the biomass feedstock, a drive section for rotationally driving the pulverizing table, a pulverizing roller for pulverizing the biomass feedstock by a pressing force, the pulverizing roller being operated in conjunction with the rotation of the pulverizing table, a blower means for forming an upward flow upward from below on the outer peripheral side of the pulverizing table so as to jet conveying gas for conveying the biomass powder in an air stream, and a classifier for classifying the biomass powder accompanied with the conveying gas.Type: ApplicationFiled: May 12, 2011Publication date: March 7, 2013Inventors: Kazuhiro Takeuchi, Takuichiro Daimaru, Masaaki Kinoshita, Yoshiki Yamaguchi, Norichika Kai
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Publication number: 20130055934Abstract: A biomass pulverizing apparatus includes a pulverizing apparatus body including a feedstock supply pipe, the pulverizing apparatus body for supplying biomass feedstock from above in a vertical axial direction, a pulverizing table for placing the biomass feedstock, a drive section for rotationally driving the pulverizing table, a pulverizing roller for pulverizing the biomass feedstock by a pressing force, the pulverizing roller being operated in conjunction with the rotation of the pulverizing table, a blower unit for forming an upward flow upward from below on the outer peripheral side of the pulverizing table so as to jet conveying gas for conveying the pulverized biomass powder in an air stream, a classifier, the classifier for classifying the biomass powder accompanied with the conveying gas, and a blowing gas introduction section.Type: ApplicationFiled: May 12, 2011Publication date: March 7, 2013Inventors: Kazuhiro Takeuchi, Takuichiro Daimaru, Masaaki Kinoshita, Yoshiki Yamaguchi, Norichika Kai
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Patent number: 5687676Abstract: A steam generator is operated under both of supercritical pressure and subcritical pressure and has having generating tubes that form a furnace wall. Upper and lower generating tubes which are directed vertically and central generating tubes are inclined by 10.degree. to 35.degree. with respect to a vertical line. The steam generator further includes a burner wind box which is inclined along the inclination of the central generating tubes and are vertically divided into a plurality of stages.Type: GrantFiled: June 3, 1996Date of Patent: November 18, 1997Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Norichika Kai, Susumu Sato, Tsuneo Fukuda, Shozou Kaneko
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Patent number: 5256174Abstract: A pressure-swing adsorption type gas separator system includes two adsorption vessels and a switching valve for placing each of the adsorption vessels alternately in communication with a raw gas source and an exhaust gas line so that a pressurized adsorption process and a reduced-pressure desorption process are sequentially carried out in each of the vessels. The switching valve is a four-port rotary valve having four ports connected to the adsorption vessels, a raw gas source and an exhaust gas line and is driven by a rotary drive. Preferably, the rotary drive is a drive motor for a pressurizing pump provided in a raw gas line, and the four-port rotary valve is connected to the drive motor via a speed reducer.Type: GrantFiled: August 3, 1992Date of Patent: October 26, 1993Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Norichika Kai, Shozo Kaneko, Tsugiya Abe
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Patent number: 4493269Abstract: A direct fired system (10, 10') includes pulverizer means (14, 24), classifier means (12, 16, 18, 48, 76), burner means (16, 16') as well as a defined fluid flow path that serves to interconnect the pulverizer means (14, 24) and the classifier means (12, 26, 28, 48, 76) in fluid flow relation with the burner means (16, 16'). In accord with the mode of operation thereof, at the classifier means (12, 26, 28, 48, 76) a separation is had of the stream of the gaseous medium such that a portion of the gaseous medium is recirculated along with the oversize solid fuel particles back to the pulverizer means (14, 24) while the remainder of the gaseous medium is operative to convey the solid fuel particles that are of the desired size from the classifier means (12, 26, 28, 48, 76) to the burner means (16, 16') for burning, i.e., firing, in the latter.Type: GrantFiled: December 23, 1983Date of Patent: January 15, 1985Assignee: Combustion Engineering, Inc.Inventors: Richard L. Musto, Norichika Kai
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Patent number: 4464999Abstract: A direct fired system (10, 10') includes pulverizer means (14, 24) classifier means (12, 26, 28, 48, 76), burner means (16, 16') as well as a defined fluid flow path that serves to interconnect the pulverizer means (14, 24) and the classifier means (12, 26, 28, 48, 76) in fluid flow relation with the burner means (16, 16'). In accord with the mode of operation thereof, at the classifier means (12, 26, 28, 48, 76) a separation is had of the stream of the gaseous medium such that a portion of the gaseous medium is recirculated along with the oversize solid fuel particles back to the pulverizer means (14, 24) while the remainder of the gaseous medium is operative to convey the solid fuel particles that are of the desired size from the classifier means (12, 26, 28, 48, 76) to the burner means (16, 16') for burning, i.e., firing, in the latter.Type: GrantFiled: November 18, 1982Date of Patent: August 14, 1984Assignee: Combustion Engineering, Inc.Inventors: Richard L. Musto, Norichika Kai