Patents by Inventor Kyouichi Nakayasu
Kyouichi Nakayasu 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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Publication number: 20210172138Abstract: To effectively block a corner portion from an influx of water. A floating flap gate apparatus 1 constructed to enable a forward end of a door body to swing upwards around a base end thereof. The floating flap gate system 1 has floating flap gates 11 and 12 arranged in a first rectilinear region S1 and a second rectilinear region S2 respectively, and a corner flap gate 21 installed at a corner portion C where S1 and S2 intersect. The corner flap gate 21 has a plurality of door bodies 22 divided by straight lines passing through a part of the corner portion C where lines extending in a width-wise direction of a base end side bottom surface of the door bodies 13 of the floating flap gates 11 and 12 intersect. Among the plurality of door bodies 22, a door body adjacent to the door bodies 13 of the floating flap gates 11 and 12 and the door bodies 22 adjacent to the door bodies 13 are connected by hinge structures 32 and 31 that maintain a water-impervious state.Type: ApplicationFiled: February 17, 2017Publication date: June 10, 2021Inventors: Toshiaki MORII, Kyouichi NAKAYASU, Yoshito YAMAKAWA, Yuuichiro KIMURA
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Patent number: 9926682Abstract: To make it possible to raise a door body even if it is damaged by an impact of vehicle traffic or falling objects when it is in a lowered state, and to keep the door body in a raised state even if it is damaged by a water pressure of a tsunami or a high tide when it is in a raised state. A door body 2 of a floating flap gate 1 is disposed at an opening or at an access way. When water flows in, a forward end 2b of which swings upwards, in a direction in which the water flows in and within a plane in a height direction, around a base end 2a thereof which serves as a center of rotation, to block the opening or the access way. The door body 2 is formed from a hard polyurethane foam 4 in the form of a sheet.Type: GrantFiled: June 5, 2012Date of Patent: March 27, 2018Assignee: HITACHI ZOSEN CORPORATIONInventors: Hiroaki Arai, Hideyuki Niizato, Koji Kitamura, Jun Okada, Satoshi Ashida, Kyouichi Nakayasu, Yoshito Yamakawa
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Patent number: 9528621Abstract: An apparatus for shutting off the flow of water through ductwork is disclosed that is installed in an air conditioning duct in a building and closes the air conditioning duct in the event of the attack of seawater. Two upper and lower hinged door bodies disposed in the inside of the air conditioning duct are supported by a support device in the state in which the inside of the air conditioning duct is open. The opening and closing operations of the upper door body are interlocked with the opening and closing operations of the lower door body by a chain. A water intrusion detection device releases the supporting of the two upper and lower door bodies in the event of the intrusion of water. The two upper and lower door bodies are horizontally moved in the direction of water pressure when the inside of the air conditioning duct is closed.Type: GrantFiled: April 3, 2015Date of Patent: December 27, 2016Assignee: HITACHI ZOSEN CORPORATIONInventors: Yuuichiro Kimura, Toshiaki Morii, Toru Itagaki, Kyouichi Nakayasu
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Patent number: 9528239Abstract: A floating flap gate to prevent water from overflowing into underground spaces, with ease in raising or lowering the door body when water level changes. The floating flap gate comprises a door body with a forward end which swings upwards or downwards in a same direction following a rise or a drop in water level, wherein an opposite end serves as a fulcrum. A rod is attached to the forward end of the door body. One end of a wire rope is attached to the rod, and the other end is attached to a counterweight via fixed pulleys. The fixed pulleys are arranged so that the counterweight is at its lowest point when the angle of inclination of the door body with respect to a horizontal plane reaches within a range from 10° to 80° during raising or lowering of the door body.Type: GrantFiled: April 2, 2012Date of Patent: December 27, 2016Assignee: Hitachi Zosen CorporationInventors: Kyouichi Nakayasu, Yoshito Yamakawa, Toshiaki Morii, Masaki Inui, Yuuichirou Kimura
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Patent number: 9267253Abstract: A land-mounted flap gate formed by arranging and connecting a plurality of door bodies alongside one another is disclosed. The front side of each of the plurality of door bodies is raised and lowered using the back end side of each door body as a support point. One end of a rope is attached to the back end surface of the door body and the other end of the rope is attached to a counter weight. At least one fixed pulley for guiding the rope is disposed below the back end side of the door body such that the counter weight assists the raising or lowering when starting the raising or lowering and acts as a resistance against the raising or lowering before completing the raising or lowering. The waterproof film that seals a space between neighboring door bodies in a waterproof manner is formed in a substantially trapezoidal shape.Type: GrantFiled: March 18, 2015Date of Patent: February 23, 2016Assignee: HITACHI ZOSEN CORPORATIONInventors: Kyouichi Nakayasu, Yuuichiro Kimura, Ryouta Yoshiki, Toshiaki Morii
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Patent number: 9267322Abstract: The present invention utilizes a vertically upward force of a water when a tsunami smashes into a building to close openings that exist in an elevated location such as air supply and exhaust ducts, powerlessly and without a manual operation. The present invention serves as a disaster prevention panel which closes an opening 2a disposed in a wall of a building 2. A door bumper 3 is disposed on an outer peripheral wall of the opening 2a, and side door bumpers 4 are disposed on both sides of the door bumper 3. A door body 1, which closes the opening 2a and which has a specific gravity lower than a seawater, is attached between the side door bumpers 4 on both sides so as to freely swing upwards, with a lower portion of the door bumper 3 serving as a fulcrum.Type: GrantFiled: September 7, 2012Date of Patent: February 23, 2016Assignee: HITACHI ZOSEN CORPORATIONInventors: Masaki Inui, Yuuichirou Kimura, Kyouichi Nakayasu, Toshiaki Morii, Yoshito Yamakawa
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Publication number: 20150330526Abstract: An apparatus for shutting off the flow of water through ductwork is disclosed that is installed in an air conditioning duct in a building and closes the air conditioning duct in the event of the attack of seawater. Two upper and lower hinged door bodies disposed in the inside of the air conditioning duct are supported by a support device in the state in which the inside of the air conditioning duct is open. The opening and closing operations of the upper door body are interlocked with the opening and closing operations of the lower door body by a chain. A water intrusion detection device releases the supporting of the two upper and lower door bodies in the event of the intrusion of water. The two upper and lower door bodies are horizontally moved in the direction of water pressure when the inside of the air conditioning duct is closed.Type: ApplicationFiled: April 3, 2015Publication date: November 19, 2015Inventors: Yuuichiro KIMURA, Toshiaki MORII, Toru ITAGAKI, Kyouichi NAKAYASU
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Publication number: 20150299973Abstract: A land-mounted flap gate formed by arranging and connecting a plurality of door bodies alongside one another is disclosed. The front side of each of the plurality of door bodies is raised and lowered using the back end side of each door body as a support point. One end of a rope is attached to the back end surface of the door body and the other end of the rope is attached to a counter weight. At least one fixed pulley for guiding the rope is disposed below the back end side of the door body such that the counter weight assists the raising or lowering when starting the raising or lowering and acts as a resistance against the raising or lowering before completing the raising or lowering. The waterproof film that seals a space between neighboring door bodies in a waterproof manner is formed in a substantially trapezoidal shape.Type: ApplicationFiled: March 18, 2015Publication date: October 22, 2015Inventors: Kyouichi NAKAYASU, Yuuichiro KIMURA, Ryouta YOSHIKI, Toshiaki MORII
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Patent number: 9091033Abstract: The present invention provides a floating flap gap which has a door body with a forward end which is able to swing upwards, in a direction in which the water flows into an opening or at an access way, around a base end thereof serving as a fulcrum. The door body is attached to one end of a wire rope, and an auxiliary force generating means is attached to the other end thereof. This structure makes it possible to prevent an overflow during the initial influx of water and to enhance the ability of the door body to follow the water level when the door body begins to lower. This structure additionally makes it possible to mitigate a shock which occurs when raising of the door body is completed and when lowering of the door body is completed.Type: GrantFiled: November 12, 2012Date of Patent: July 28, 2015Assignee: HITACHI ZOSEN CORPORATIONInventors: Kyouichi Nakayasu, Toshiaki Morii, Ryouta Yoshiki, Masaki Inui, Yuuichirou Kimura
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Publication number: 20140328628Abstract: The present invention provides a floating flap gap which has a door body with a forward end which is able to swing upwards, in a direction in which the water flows into an opening or at an access way, around a base end thereof serving as a fulcrum. The door body is attached to one end of a wire rope, and an auxiliary force generating means is attached to the other end thereof. This structure makes it possible to prevent an overflow during the initial influx of water and to enhance the ability of the door body to follow the water level when the door body begins to lower. This structure additionally makes it possible to mitigate a shock which occurs when raising of the door body is completed and when lowering of the door body is completed.Type: ApplicationFiled: November 12, 2012Publication date: November 6, 2014Applicant: HITACHI ZOSEN CORPORATIONInventors: Kyouichi Nakayasu, Toshiaki Morii, Ryouta Yoshiki, Masaki Inui, Yuuichirou Kimura
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Publication number: 20140230328Abstract: The present invention utilizes a vertically upward force of a water when a tsunami smashes into a building to close openings that exist in an elevated location such as air supply and exhaust ducts, powerlessly and without a manual operation. The present invention serves as a disaster prevention panel which closes an opening 2a disposed in a wall of a building 2. A door bumper 3 is disposed on an outer peripheral wall of the opening 2a, and side door bumpers 4 are disposed on both sides of the door bumper 3. A door body 1, which closes the opening 2a and which has a specific gravity lower than a seawater, is attached between the side door bumpers 4 on both sides so as to freely swing upwards, with a lower portion of the door bumper 3 serving as a fulcrum.Type: ApplicationFiled: September 7, 2012Publication date: August 21, 2014Applicant: HITACHI ZOSEN CORPORATIONInventors: Masaki Inui, Yuuichirou Kimura, Kyouichi Nakayasu, Toshiaki Morii, Yoshito Yamakawa
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Publication number: 20140193202Abstract: To make it possible to raise a door body even if it is damaged by an impact of vehicle traffic or falling objects when it is in a lowered state, and to keep the door body in a raised state even if it is damaged by a water pressure of a tsunami or a high tide when it is in a raised state. A door body 2 of a floating flap gate 1 is disposed at an opening or at an access way. When water flows in, a forward end 2b of which swings upwards, in a direction in which the water flows in and within a plane in a height direction, around a base end 2a thereof which serves as a center of rotation, to block the opening or the access way. The door body 2 is formed from a hard polyurethane foam 4 in the form of a sheet.Type: ApplicationFiled: June 5, 2012Publication date: July 10, 2014Applicant: HITACHI ZOSEN CORPORATIONInventors: Hiroaki Arai, Hideyuki Niizato, Koji Kitamura, Jun Okada, Satoshi Ashida, Kyouichi Nakayasu, Yoshito Yamakawa
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Publication number: 20140140770Abstract: The object of the present invention is to prevent an overflow of water into living spaces and underground spaces, to prevent difficulties in lower the door body when the water level has dropped, and to prevent the door body from suddenly falling. This is achieved by a floating flap gate 11 which is disposed at an opening or at an access way, so as to block the opening or the access way when water w flows in, and comprises a door body 12 with a forward end which is able to swing upwards, within in a plane in a height direction in a direction in which the water flows in around a base end thereof serving as a fulcrum. A rod 13 is attached to the forward end of the door body 12. One end of a wire rope 14 is attached to the rod 13, and the other end is attached to a counterweight 20 via fixed pulleys 16, 17.Type: ApplicationFiled: April 2, 2012Publication date: May 22, 2014Applicant: HITACHI ZOSEN CORPORATIONInventors: Kyouichi Nakayasu, Yoshito Yamakawa, Toshiaki Morii, Masaki Inui, Yuuichirou Kimura