Patents by Inventor Kunihiko Takao
Kunihiko Takao 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: 10242436Abstract: A non-destructive inspection apparatus is configured to perform non-destructive inspection of a bonded place between a base material and a bonding material of a gas turbine engine part formed by bonding the bonding material formed of a metal material to the base material formed of a fiber-strengthened material, and includes a moving apparatus configured to move the gas turbine engine part, a light source apparatus configured to emit a laser beam, an infrared imaging apparatus configured to image the gas turbine engine part to which the laser beam is radiated, and a control and arithmetic processing apparatus configured to store form data of the gas turbine engine part, control the moving apparatus such that the laser beam is radiated to the bonded place based on the form data, and obtain a result showing a state of the bonded place based on imaging data obtained by the infrared imaging apparatus.Type: GrantFiled: November 1, 2016Date of Patent: March 26, 2019Assignees: IHI Corporation, KEN AUTOMATION, INC.Inventors: Koichi Inagaki, Kunihiko Takao
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Publication number: 20170046831Abstract: A non-destructive inspection apparatus is configured to perform non-destructive inspection of a bonded place between a base material and a bonding material of a gas turbine engine part formed by bonding the bonding material formed of a metal material to the base material formed of a fiber-strengthened material, and includes a moving apparatus configured to move the gas turbine engine part, a light source apparatus configured to emit a laser beam, an infrared imaging apparatus configured to image the gas turbine engine part to which the laser beam is radiated, and a control and arithmetic processing apparatus configured to store form data of the gas turbine engine part, control the moving apparatus such that the laser beam is radiated to the bonded place based on the form data, and obtain a result showing a state of the bonded place based on imaging data obtained by the infrared imaging apparatus.Type: ApplicationFiled: November 1, 2016Publication date: February 16, 2017Applicants: IHI Corporation, KEN AUTOMATION, INC.Inventors: Koichi INAGAKI, Kunihiko TAKAO
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Patent number: 8551423Abstract: It is possible to correctly determine whether a change in the pressure or flow rate is caused by normal opening and closing operations of a check valve and to monitor in real time whether an operation of a check valve is normal or abnormal in a liquid supply device. Light is introduced in the check valve and a change in the quantity of light transmitted through or reflected by the check valve, caused by the opening and closing of the valve is detected, so that the opening and closing operations of the check valve can be directly detected. The check valve is arranged in a pipe in the liquid supply device, and a change in the pressure in the pipe is monitored on the basis of a signal from a pressure sensor and a signal which represents the opening and closing of the check valve.Type: GrantFiled: May 26, 2010Date of Patent: October 8, 2013Assignee: Hitachi High-Technologies CorporationInventors: Kisaburo Deguchi, Hironori Kaji, Kimihiko Ishii, Daisuke Akieda, Kunihiko Takao, Masaru Yamasaki, Kenji Hiraku, Yoshihiro Nagaoka
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Publication number: 20120128533Abstract: It is possible to correctly determine whether a change in the pressure or flow rate is caused by normal opening and closing operations of a check valve and to monitor in real time whether an operation of a check valve is normal or abnormal in a liquid supply device. Light is introduced in the check valve and a change in the quantity of light transmitted through or reflected by the check valve, caused by the opening and closing of the valve is detected, so that the opening and closing operations of the check valve can be directly detected. The check valve is arranged in a pipe in the liquid supply device, and a change in the pressure in the pipe is monitored on the basis of a signal from a pressure sensor and a signal which represents the opening and closing of the check valve.Type: ApplicationFiled: May 26, 2010Publication date: May 24, 2012Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATIONInventors: Kisaburo Deguchi, Hironori Kaji, Kimihiko Ishii, Daisuke Akieda, Kunihiko Takao, Masaru Yamasaki, Kenji Hiraku, Yoshihiro Nagaoka
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Patent number: 7921696Abstract: This liquid feeding system has the first and second pumps each of which is provided with a plunger. Liquid sucked through each of the pump suction ports is discharged out of the discharging port through the first pump and/or second pump. Under the starting operation mode, the second pump is stopped and only the first pump is operated. When the discharging pressure at the discharging port reaches up to a predetermined value, the starting operation mode is changed over to the normal operation mode. Under the normal operation mode, the first pump is stopped and only the second pump is operated.Type: GrantFiled: February 26, 2008Date of Patent: April 12, 2011Assignee: Hitachi High-Technologies CorporationInventors: Kunihiko Takao, Hironori Kaji, Masahito Ito
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Patent number: 7901573Abstract: Disclosed herein is a separation column comprising a porous block covered with a coating wherein space-free adhesion is attainable therebetween by low temperature process without releasing octadecylsilyl bases and others from the porous block. A monolith rod 1 is covered with a metal or resin coating 2. Then, the monolith rod 1 covered by the coating 2 is further covered with a rod retainer 3 made of a low melting point metal (melting point 100-200 degrees C.) to form a column body 19. Since the rod retainer 3 is formed by pressure molding at low temperature (100-200 degrees C.). It is therefore possible to absorb the surface irregularities of the monolith rod 1 by the coating 2 while octadecylsilyl bases and others from are released when the retainer 3 is formed. This allows the potential separation ability of the porous block to be brought out maximally.Type: GrantFiled: April 17, 2008Date of Patent: March 8, 2011Assignee: Hitachi High-Technologies CorporationInventors: Kimihiko Ishii, Hironori Kaji, Masahito Ito, Yoshihiro Nagaoka, Kunihiko Takao
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Patent number: 7588423Abstract: Provided is a liquid chromatograph pump system which sucks eluent from an eluent reserving container, and which feeds pressurized high pressure eluent into a column, wherein a plunger reciprocating in a cylinder is formed on its outer peripheral surface with a stepped part along the sliding direction of the plunger in the cylinder so as to define a working chamber between the stepper part and the inner wall surface of the cylinder, the flow rate of the liquid chromatograph pump being determined by the volume of the working chamber and the traveling speed of the plunger, thereby it is possible to stably feed a liquid at an extremely low flow rate, and to satisfactorily expel air bubbles upon a start of the liquid chromatograph pump system.Type: GrantFiled: October 30, 2003Date of Patent: September 15, 2009Assignee: Hitachi High-Technologies CorporationInventors: Kunihiko Takao, Kenji Hiraku, Isao Hayase, Hironori Kaji, Masahito Ito
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Publication number: 20080296209Abstract: This liquid feeding system has the first and second pumps each of which is provided with a plunger. Liquid sucked through each of the pump suction ports is discharged out of the discharging port through the first pump and/or second pump. Under the starting operation mode, the second pump is stopped and only the first pump is operated. When the discharging pressure at the discharging port reaches up to a predetermined value, the starting operation mode is changed over to the normal operation mode. Under the normal operation mode, the first pump is stopped and only the second pump is operated.Type: ApplicationFiled: February 26, 2008Publication date: December 4, 2008Inventors: Kunihiko Takao, Hironori Kaji, Masahito Ito
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Publication number: 20080283458Abstract: Disclosed herein is a separation column comprising a porous block covered with a coating wherein space-free adhesion is attainable therebetween by low temperature process without releasing octadecylsilyl bases and others from the porous block. A monolith rod 1 is covered with a metal or resin coating 2. Then, the monolith rod 1 covered by the coating 2 is further covered with a rod retainer 3 made of a low melting point metal (melting point 100-200 degrees C.) to form a column body 19. Since the rod retainer 3 is formed by pressure molding at low temperature (100-200 degrees C.). It is therefore possible to absorb the surface irregularities of the monolith rod 1 by the coating 2 while octadecylsilyl bases and others from are released when the retainer 3 is formed. This allows the potential separation ability of the porous block to be brought out maximally.Type: ApplicationFiled: April 17, 2008Publication date: November 20, 2008Inventors: Kimihiko Ishii, Hironori Kaji, Masahito Ito, Yoshihiro Nagaoka, Kunihiko Takao
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Patent number: 7350401Abstract: This liquid feeding system has the first and second pumps each of which is provided with a plunger. Liquid sucked through each of the pump suction ports is discharged out of the discharging port through the first pump and/or second pump. Under the starting operation mode, the second pump is stopped and only the first pump is operated. When the discharging pressure at the discharging port reaches up to a predetermined value, the starting operation mode is changed over to the normal operation mode. Under the normal operation mode, the first pump is stopped and only the second pump is operated.Type: GrantFiled: July 1, 2005Date of Patent: April 1, 2008Assignee: Hitachi High-Technologies CorporationInventors: Kunihiko Takao, Hironori Kaji, Masahito Ito
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Patent number: 7189320Abstract: The invention provides a pump for liquid chromatography excellent in feeding liquid stably at an extremely low flow rate and in discharging bubbles at startup. In a pump for liquid chromatography including a cylinder and a plunger that reciprocates in the cylinder to suck and discharge fluid, the pump further includes a large-flow-rate pump that feeds liquid by the plunger, a small-flow-rate pump that feeds the liquid by the plunger, motion conversion means that converts the rotational motion of a motor to a reciprocating motion, an actuator that directly drives the plunger, and a drive part that drives the actuator, and selectively switches means for driving the plunger.Type: GrantFiled: July 30, 2004Date of Patent: March 13, 2007Assignee: Hitachi High-Technologies CorporationInventors: Kunihiko Takao, Hironori Kaji, Masahito Ito
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Patent number: 7063513Abstract: In a pump for feeding a liquid for chromatography, first and second plungers form first and second volumes respectively together with first and second chambers, the first plunger is prevented from changing the first volume sufficiently for feeding the liquid between the first and second volumes when the second plunger decreases the second volume to discharge the fluid from the second volume to an outlet path of the pump for the chromatography.Type: GrantFiled: November 30, 2004Date of Patent: June 20, 2006Assignee: Hitachi High-Technologies CorporationInventors: Kenji Hiraku, Kunihiko Takao, Hironori Kaji, Masahito Ito
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Patent number: 7063785Abstract: The invention provides a pump for liquid chromatography excellent in feeding liquid stably at an extremely low flow rate with high accuracy and in discharging bubbles at startup. At startup, a first plunger feeds solvent at a large flow rate to discharge bubbles in a pump and to fill the solvent into the pump in a short time and in a normal operation, the first plunger is stopped and the second plunger is pushed into a second pressure chamber at a low speed to feed the solvent at a low flow rate. When the second plunger reaches full stroke, the second plunger is pulled back at a high speed and at the same time the first plunger is pushed into a first pressure chamber in synchronization with the pullback of the second plunger to control the flow rate passing a discharge passage to a constant value at all times by a controller.Type: GrantFiled: July 30, 2004Date of Patent: June 20, 2006Assignee: Hitachi High-Technologies CorporationInventors: Kenji Hiraku, Kunihiko Takao, Hironori Kaji, Masahito Ito
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Publication number: 20060000759Abstract: This liquid feeding system has the first and second pumps each of which is provided with a plunger. Liquid sucked through each of the pump suction ports is discharged out of the discharging port through the first pump and/or second pump. Under the starting operation mode, the second pump is stopped and only the first pump is operated. When the discharging pressure at the discharging port reaches up to a predetermined value, the starting operation mode is changed over to the normal operation mode. Under the normal operation mode, the first pump is stopped and only the second pump is operated.Type: ApplicationFiled: July 1, 2005Publication date: January 5, 2006Inventors: Kunihiko Takao, Hironori Kaji, Masahito Ito
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Patent number: 6923916Abstract: In a pump for feeding a liquid for chromatography, first and second plungers form first and second volumes respectively together with first and second chambers, the first plunger is prevented from changing the first volume sufficiently for feeding the liquid between the first and second volumes when the second plunger decreases the second volume to discharge the fluid from the second volume to an outlet path of the pump for the chromatography.Type: GrantFiled: June 30, 2003Date of Patent: August 2, 2005Assignee: Hitachi High-Technologies CorporationInventors: Kenji Hiraku, Kunihiko Takao, Hironori Kaji, Masahito Ito
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Publication number: 20050095145Abstract: In a pump for feeding a liquid for chromatography, first and second plungers form first and second volumes respectively together with first and second chambers, the first plunger is prevented from changing the first volume sufficiently for feeding the liquid between the first and second volumes when the second plunger decreases the second volume to discharge the fluid from the second volume to an outlet path of the pump for the chromatography.Type: ApplicationFiled: November 30, 2004Publication date: May 5, 2005Inventors: Kenji Hiraku, Kunihiko Takao, Hironori Kaji, Masahito Ito
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Publication number: 20050061722Abstract: The invention provides a pump for liquid chromatography excellent in feeding liquid stably at an extremely low flow rate and in discharging bubbles at startup. In a pump for liquid chromatography including a cylinder and a plunger that reciprocates in the cylinder to suck and discharge fluid, the pump further includes a large-flow-rate pump that feeds liquid by the plunger, a small-flow-rate pump that feeds the liquid by the plunger, motion conversion means that converts the rotational motion of a motor to a reciprocating motion, an actuator that directly drives the plunger, and a drive part that drives the actuator, and selectively switches means for driving the plunger.Type: ApplicationFiled: July 30, 2004Publication date: March 24, 2005Inventors: Kunihiko Takao, Hironori Kaji, Masahito Ito
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Publication number: 20050023205Abstract: The invention provides a pump for liquid chromatography excellent in feeding liquid stably at an extremely low flow rate with high accuracy and in discharging bubbles at startup. At startup, a first plunger feeds solvent at a large flow rate to discharge bubbles in a pump and to fill the solvent into the pump in a short time and in a normal operation, the first plunger is stopped and the second plunger is pushed into a second pressure chamber at a low speed to feed the solvent at a low flow rate. When the second plunger reaches full stroke, the second plunger is pulled back at a high speed and at the same time the first plunger is pushed into a first pressure chamber in synchronization with the pullback of the second plunger to control the flow rate passing a discharge passage to a constant value at all times by a controller.Type: ApplicationFiled: July 30, 2004Publication date: February 3, 2005Inventors: Kenji Hiraku, Kunihiko Takao, Hironori Kaji, Masahito Ito
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Publication number: 20040164013Abstract: Provided is a liquid chromatograph pump system which sucks eluent from an eluent reserving container, and which feeds pressurized high pressure eluent into a column, wherein a plunger reciprocating in a cylinder is formed on its outer peripheral surface with a stepped part along the sliding diretion of the plunger in the cylinder so as to define a working chamber between the stepper part and the inner wall surface of the cylinder, the flow rate of the liquid chromatograph pump being determined by the volume of the working chamber and the traveling speed of the plunger, thereby it is possible to stably feed a liquid at an extremely low flow rate, and to satisfactorily expel air bubbles upon a start of the liquid chromatograph pump system.Type: ApplicationFiled: October 30, 2003Publication date: August 26, 2004Inventors: Kunihiko Takao, Kenji Hiraku, Isao Hayase, Hironori Kaji, Masahito Ito
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Patent number: 6725837Abstract: The unevenness of injection rates of cylinders is reduced in a fuel supply system of a direct injection engine which uses a variable-displacement single plunger pump. The unevenness of injection rates of cylinders can be reduced by effecting a control such that the cam 100, which drives the high-pressure fuel pump 101, makes one reciprocation, while the engine makes explosions in two cylinders, and by causing the controller 55 to extend the injection time width of one of two injectors 54 which inject during one discharge of the high-pressure fuel pump and to shorten the injection time width of the other injector.Type: GrantFiled: January 28, 2002Date of Patent: April 27, 2004Assignee: Hitachi, Ltd.Inventors: Kenji Hiraku, Kenichiro Tokuo, Tadahiko Nogami, Kunihiko Takao, Hiroyuki Yamada