Patents by Inventor Yasuo Kawano
Yasuo Kawano 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: 8960508Abstract: A sliding nozzle device automatically performs a series of operations of loading and unloading pressure between plates and opening and closing a slide frame; maintaining the pressure without additional operations; and operates at full stroke during molten steel flow control. An auxiliary plate-exchanging mechanism includes slide axes moving in the same direction as a hydraulic cylinder operates, and an arm having a proximal end placed around the slide axis. The plate-exchanging mechanism is fixed on an upside frame. A first engagement pin mounted on the proximal end of the arm is inserted in a first engagement groove in a first engagement member engaging with the slide axis, and second engagement pins mounted on bearings are inserted in second engagement grooves in the slide axes. With movement of the slide axes the engagement pins respectively move in the engagement grooves, thereby rotating the slide axes and the arm.Type: GrantFiled: May 15, 2009Date of Patent: February 24, 2015Assignee: Krosaki Harima CorporationInventors: Junichi Funato, Hiroyuki Tofuku, Yasuo Kawano, Shinjiro Saito
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Publication number: 20110101041Abstract: A sliding nozzle device automatically performs a series of operations of loading and unloading pressure between plates and opening and closing a slide frame; maintaining the pressure without additional operations; and operates at full stroke during molten steel flow control. An auxiliary plate-exchanging mechanism includes slide axes moving in the same direction as a hydraulic cylinder operates, and an arm having a proximal end placed around the slide axis. The plate-exchanging mechanism is fixed on an upside frame. A first engagement pin mounted on the proximal end of the arm is inserted in a first engagement groove in a first engagement member engaging with the slide axis, and second engagement pins mounted on bearings are inserted in second engagement grooves in the slide axes. With movement of the slide axes the engagement pins respectively move in the engagement grooves, thereby rotating the slide axes and the arm.Type: ApplicationFiled: May 15, 2009Publication date: May 5, 2011Applicant: Krosaki Harima CorporationInventors: Junichi Funato, Hiroyuki Tofuku, Yasuo Kawano, Shinjiro Saito
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Publication number: 20080093780Abstract: An arrangement for reducing an average discharging time in a molten metal vessel, such as a converter, having a molten-metal discharge nozzle particularly a molten-metal discharge nozzle comprises a sleeve-shaped refractory member so as to achieve enhanced operational efficiency of the molten metal vessel. A discharge nozzle comprises an upper sleeve mounted in a refractory lining of a converter and a lower sleeve adapted to be detachably attached to a lower end of the upper sleeve, wherein a hole sectional area of the lower sleeve is set in the range of 60 to 98% of a hole sectional area of the lower sleeve in its used state requiring replacement.Type: ApplicationFiled: March 25, 2005Publication date: April 24, 2008Applicant: KROSAKIHARIMA CORPORATIONInventors: Hiroshi Ebisawa, Junichi Funato, Yasuo Kawano
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Patent number: 7108046Abstract: In an immersion nozzle exchanging apparatus for supporting an immersion nozzle at a flange underside thereof by a plurality of key plates parallel provided on both sides to horizontally pushing out and exchange an immersion nozzle much used with a new immersion nozzle, in order to secure high realability in the joint surface at between the immersion nozzle and the refractory positioned above thereof, the immersion nozzle exchanging apparatus comprises urge pressure providing mechanisms independent of each key plate for continuously changing a deflection amount of a spring body thereof depending on a moving position of the immersion nozzle upon exchanging the immersion nozzle and at the same time changing an immersion nozzle urging force caused on the respective key plates, and a slide frame having a spring body supporting seat surface formed with a taper surface in part thereof. The immersion nozzle to be used therein has a concave surface for holding a seal member having a depth of 1.Type: GrantFiled: December 27, 2004Date of Patent: September 19, 2006Assignee: Krosaki Harima CorporationInventors: Yasuo Kawano, Nobuyuki Yokoi, Junichi Funato, Yukio Inoue, Motoki Toyota
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Publication number: 20060137849Abstract: In an immersion nozzle exchanging apparatus for supporting an immersion nozzle at a flange underside thereof by a plurality of key plates parallel provided on both sides to horizontally pushing out and exchange an immersion nozzle much used with a new immersion nozzle, in order to secure high realability in the joint surface at between the immersion nozzle and the refractory positioned above thereof, the immersion nozzle exchanging apparatus comprises urge pressure providing mechanisms independent of each key plate for continuously changing a deflection amount of a spring body thereof depending on a moving position of the immersion nozzle upon exchanging the immersion nozzle and at the same time changing an immersion nozzle urging force caused on the respective key plates, and a slide frame having a spring body supporting seat surface formed with a taper surface in part thereof. The immersion nozzle to be used therein has a concave surface for holding a seal member having a depth of 1.Type: ApplicationFiled: December 27, 2004Publication date: June 29, 2006Applicant: KROSAKIHARIMA CORPORATIONInventors: Yasuo Kawano, Nobuyuki Yokoi, Junichi Funato, Yukio Inoue, Motoki Toyota
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Patent number: 6902121Abstract: In an immersion nozzle exchanging apparatus for supporting an immersion nozzle at a flange underside thereof by a plurality of key plates parallel provided on both sides to horizontally pushing out and exchange an immersion nozzle much used with a new immersion nozzle, in order to secure high realability in the joint surface at between the immersion nozzle and the refractory positioned above thereof, the immersion nozzle exchanging apparatus comprises urge pressure providing mechanisms independent of each key plate for continuously changing a deflection amount of a spring body thereof depending on a moving position of the immersion nozzle upon exchanging the immersion nozzle and at the same time changing an immersion nozzle urging force caused on the respective key plates, and a slide frame having a spring body supporting seat surface formed with a taper surface in part thereof. The immersion nozzle to be used therein has a concave surface for holding a seal member having a depth of 1.Type: GrantFiled: May 21, 2001Date of Patent: June 7, 2005Assignee: Krosaki Harima CorporationInventors: Yasuo Kawano, Nobuyuki Yokoi, Junichi Funato, Yukio Inoue, Motoki Toyota
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Publication number: 20030029892Abstract: In an immersion nozzle exchanging apparatus for supporting an immersion nozzle at a flange underside thereof by a plurality of key plates parallel provided on both sides to horizontally pushing out and exchange an immersion nozzle much used with a new immersion nozzle, in order to secure high realability in the joint surface at between the immersion nozzle and the refractory positioned above thereof, the immersion nozzle exchanging apparatus comprises urge pressure providing mechanisms independent of each key plate for continuously changing a deflection amount of a spring body thereof depending on a moving position of the immersion nozzle upon exchanging the immersion nozzle and at the same time changing an immersion nozzle urging force caused on the respective key plates, and a slide frame having a spring body supporting seat surface formed with a taper surface in part thereof. The immersion nozzle to be used therein has a concave surface for holding a seal member having a depth of 1.Type: ApplicationFiled: August 1, 2002Publication date: February 13, 2003Inventors: Yasuo Kawano, Nobuyuki Yokoi, Junichi Funato, Yukio Inoue, Motoki Toyota
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Patent number: 6337042Abstract: An object is to reduce mutual interference between a plurality of sets of molds coupled to a common frame stand to improve the processing accuracy. A plurality of sets (e.g. two sets) of molds are driven by servo motors (6a, 6b). The servo motors (6a, 6b) are individually controlled by servo amplifiers (8a, 8b), respectively. A control portion in the servo amplifier (8a) calculates a current (I) so that the measured value (X) of the rotating position of the servo motor (6a) follows a directing value (X0) sent from a CPU through a pulse generator (9). A torque detecting/limiting portion (25) limits the calculated current (I) so that a limit value of the torque sent from the CPU through a DA converter (12) is not exceeded and sends it to the servo motor (6a) through a current amplifier (26). When the torque of the servo motor (6a) reaches the limit value after the molds come in contact, the directing value (X0) is rapidly advanced in the mold-losing direction.Type: GrantFiled: September 14, 1999Date of Patent: January 8, 2002Assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Engineering Co., Ltd.Inventors: Suekazu Nakashima, Yasuo Kawano, Hideji Aoki