Patents by Inventor Tomoaki Fukuoka
Tomoaki Fukuoka 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: 10662882Abstract: Provided is a fuel pressure monitoring system of a vaporizer using a safety module which issues a fault signal by detecting a pressure using a fuel pressure sensor disposed in a pressure regulating chamber of the vaporizer within a predetermined time after an engine is stopped and determining that the pressure regulating mechanism fails when the detected pressure exceeds a threshold stored in a storage device to be increased to a predetermined pressure or higher, and the pressure regulating mechanism is determined to fail only when a water temperature of cooling water in the engine of the vaporizer reaches a predetermined temperature at which warming up of the engine can be determined to be completed.Type: GrantFiled: January 11, 2019Date of Patent: May 26, 2020Assignee: Nikki Co., Ltd.Inventors: Takayuki Endo, Tsutomu Murakami, Tomoaki Fukuoka
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Publication number: 20200141515Abstract: A pilot type solenoid valve may include a movable core including a main valve and a pilot valve. The main valve may open or close a valve seat. The pilot valve may be connected to a base end side of the main valve and may be axially movable alone such that the movable core is biased in a closing direction by a spring and is slidable in a guide sleeve of a fixed core wound with an electromagnetic coil. When the pilot type solenoid valve is fully open by a electromagnetic force of the electromagnetic coil, a contact portion of the main valve may contact a contacted portion of the guide sleeve to restrict movement of the main valve toward a base end, and the pilot valve may be sucked and held in a state where a base end of the pilot valve does not contact the fixed core.Type: ApplicationFiled: October 31, 2019Publication date: May 7, 2020Inventors: Masashi Iwasaki, Tomoaki Fukuoka, Tsutomu Murakami
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Publication number: 20190211756Abstract: Provided is a fuel pressure monitoring system of a vaporizer using a safety module which issues a fault signal by detecting a pressure using a fuel pressure sensor disposed in a pressure regulating chamber of the vaporizer within a predetermined time after an engine is stopped and determining that the pressure regulating mechanism fails when the detected pressure exceeds a threshold stored in a storage device to be increased to a predetermined pressure or higher, and the pressure regulating mechanism is determined to fail only when a water temperature of cooling water in the engine of the vaporizer reaches a predetermined temperature at which warming up of the engine can be determined to be completed.Type: ApplicationFiled: January 11, 2019Publication date: July 11, 2019Inventors: Takayuki Endo, Tsutomu Murakami, Tomoaki Fukuoka
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Patent number: 9677507Abstract: A purpose of the present invention is to improve the oil removal rate in an oil separator that separates and removes oil from gas including the oil as an impurity. The oil separator according to the present invention is characterized by including a first filter member (42) in a cylindrical shape made with a cylindrical filter material having an air permeability, and positioned such that the target gas flows in from a hollow part as well as a central axis is in an up-down direction, and a second filter member (43) made with a filter material having air permeability and wrapped around the first filter member (42) along an outer surface thereof with a predetermined spacing from the outer surface of the first filter member (42).Type: GrantFiled: December 19, 2012Date of Patent: June 13, 2017Assignees: Tokyo Roki Co., Ltd., Nikki Co., Ltd.Inventors: Takatsugu Kurosawa, Tadashi Ichikawa, Yoshinori Maehira, Takayuki Idehara, Tomoaki Fukuoka, Masashi Iwasaki, Koji Kawayoko, Takaya Kohara
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Publication number: 20150226158Abstract: A purpose of the present invention is to improve the oil removal rate in an oil separator that separates and removes oil from gas including the oil as an impurity. The oil separator according to the present invention is characterized by including a first filter member (42) in a cylindrical shape made with a cylindrical filter material having an air permeability, and positioned such that the target gas flows in from a hollow part as well as a central axis is in an up-down direction, and a second filter member (43) made with a filter material having air permeability and wrapped around the first filter member (42) along an outer surface thereof with a predetermined spacing from the outer surface of the first filter member (42).Type: ApplicationFiled: December 19, 2012Publication date: August 13, 2015Applicants: TOKYO ROKI CO., LTD., NIKKI CO., LTDInventors: Takatsugu Kurosawa, Tadashi Ichikawa, Yoshinori Maehira, Takayuki Idehara, Tomoaki Fukuoka, Masashi Iwasaki, Koji Kawayoko, Takaya Kohara
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Patent number: 8979967Abstract: There is provided a filter device for gas including: a cylindrical filter case formed to be airtight; a hollow filter which is formed with an opening in a bottom part thereof, a top part of which is obstructed, and which is placed inside the filter case in such a manner that a central axis thereof substantially aligns with a central axis of the filter case; and a flow controlling plate which is attached roundly between an outlet in the top part of the filter case and the top part of the hollow filter on an inner peripheral wall of the filter case, wherein gas introduced through an inlet in a bottom part of the filter case is introduced into a hollow part of the hollow filter, and also passes through a space between an outer periphery of the hollow filter and the inner peripheral wall of the filter case, and then is discharged through the outlet.Type: GrantFiled: January 24, 2013Date of Patent: March 17, 2015Assignees: Nikki Co., Ltd., Tokyo Roki Co., Ltd.Inventors: Masashi Iwasaki, Yuka Yorita, Koji Kawayoko, Takaya Kohara, Tomoaki Fukuoka, Takatsugu Kurosawa, Tadashi Ichikawa, Yoshinori Maehira, Takayuki Idehara
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Publication number: 20140059984Abstract: There is provided a filter device for gas including: a cylindrical filter case formed to be airtight; a hollow filter which is formed with an opening in a bottom part thereof, a top part of which is obstructed, and which is placed inside the filter case in such a manner that a central axis thereof substantially aligns with a central axis of the filter case; and a flow controlling plate which is attached roundly between an outlet in the top part of the filter case and the top part of the hollow filter on an inner peripheral wall of the filter case, wherein gas introduced through an inlet in a bottom part of the filter case is introduced into a hollow part of the hollow filter, and also passes through a space between an outer periphery of the hollow filter and the inner peripheral wall of the filter case, and then is discharged through the outlet.Type: ApplicationFiled: January 24, 2013Publication date: March 6, 2014Applicants: TOKYO ROKI CO., LTD., NIKKI CO., LTD.Inventors: Masashi Iwasaki, Yuka Yorita, Koji Kawayoko, Takaya Kohara, Tomoaki Fukuoka, Takatsugu Kurosawa, Tadashi Ichikawa, Yoshinori Maehira, Takayuki Idehara