Patents by Inventor Isao Miyagawa
Isao Miyagawa 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: 8763456Abstract: A liquid level detection apparatus includes a rotation member axially supported by a fixed member. The rotation member includes the following. A contact portion press contacts an end surface making connection between both side surfaces of a magnet member. A pair of elastic deformation portions are protruded from the contact portion; each elastic deformation portion engages with a side surface of the magnet member in an elastically deformed state resulting from press to the magnet. A pair of pawl portions are protruded respectively from the elastic deformation portions while enabling the magnet member to be sandwiched between the contact portion and the pawl portions. A pair of plastic deformation portions are protruded from the elastic deformation portions, respectively; each of the plastic deformation portions engages with the side surface of the magnet member in a plastically deformed state resulting from the press to the magnet.Type: GrantFiled: May 1, 2012Date of Patent: July 1, 2014Assignee: Denso CorporationInventors: Atsushi Yasuda, Isao Miyagawa
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Patent number: 8455632Abstract: The invention is directed to the detection of multiple types of HPV with high specificity and high sensitivity. The invention provides primer sets, probes, and a kit containing the primer set and the probe, for type-specific HPV detection.Type: GrantFiled: August 1, 2008Date of Patent: June 4, 2013Assignee: Kurashiki Boseki Kabushiki KaishaInventors: Atsushi Morishita, Isao Miyagawa, Kazuhiko Kogoh, Akiko Kawakami, Naoki Ogawa
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Publication number: 20120304761Abstract: A fluid level measurement system includes a fluid level sensor, a voltage application circuit, and a measurement circuit. The fluid level sensor includes a rotating member rotating depending on a fluid level, a supporting member for rotatably supporting the rotating member, and a variable resistor having a resistance depending on a rotation angle of the rotating member. The application circuit applies an AC voltage to the resistor. The measurement circuit measures the fluid level based on the resistance. A resistive portion of the resistor is held by the supporting member and extends around the rotation center of the rotating member. A movable portion of the resistor is held by the rotating member and has a contact surface made of mainly gold. When the rotating member rotates, the movable portion moves along the resistive portion with the contact surface in contact with the resistive portion.Type: ApplicationFiled: May 30, 2012Publication date: December 6, 2012Applicant: DENSO CORPORATIONInventors: Isao Miyagawa, Hiroshi Hashimoto
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Publication number: 20120285240Abstract: A liquid level detection apparatus includes a rotation member axially supported by a fixed member. The rotation member includes the following. A contact portion press contacts an end surface making connection between both side surfaces of a magnet member. A pair of elastic deformation portions are protruded from the contact portion; each elastic deformation portion engages with a side surface of the magnet member in an elastically deformed state resulting from press to the magnet. A pair of pawl portions are protruded respectively from the elastic deformation portions while enabling the magnet member to be sandwiched between the contact portion and the pawl portions. A pair of plastic deformation portions are protruded from the elastic deformation portions, respectively; each of the plastic deformation portions engages with the side surface of the magnet member in a plastically deformed state resulting from the press to the magnet.Type: ApplicationFiled: May 1, 2012Publication date: November 15, 2012Applicant: DENSO CORPORATIONInventors: Atsushi Yasuda, Isao Miyagawa
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Publication number: 20120174667Abstract: A fluid level measurement apparatus supports multiple fluid level sensors of different types, each of which detects a level of fluid and produces an output indicative of the detected fluid level in a different way. The fluid level measurement apparatus is connected to any one of the supported fluid level sensors to measure the fluid level. The fluid level measurement apparatus includes a calculation circuit, multiple output circuits, a determination circuit, and a selection circuit. The calculation circuit calculates the fluid level from a detection voltage. Each output circuit generates the detection voltage based on the output of a corresponding fluid level sensor. The determination circuit determines the connected fluid level sensor. The selection circuit selects the output circuit corresponding to the determined fluid level sensor and allows the calculation circuit to obtain the detection voltage generated by the selected output circuit.Type: ApplicationFiled: January 9, 2012Publication date: July 12, 2012Applicant: DENSO CORPORATIONInventor: Isao Miyagawa
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Patent number: 8028575Abstract: A liquid level detecting device includes a rotative member having a bearing portion and a stationary member having an axis portion. The axis portion is fitted to a hole of the bearing portion, thereby rotatably holding the rotative member. The rotative member is integrated with a displacement member. The stationary member is fixed with a detection unit to detect a displacement of the displacement member. The rotative member is connected with a float via an arm. The axis portion has an inserted portion inserted in the bearing portion and in contact with the bearing portion via a contact portion. The contact portion has a total area that is less than an area of an outer circumferential periphery of the inserted portion.Type: GrantFiled: February 21, 2008Date of Patent: October 4, 2011Assignee: Denso CorporationInventors: Isao Miyagawa, Atsushi Yasuda
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Patent number: 7812598Abstract: An electrical device includes a terminal connected with an electronic component, a pliant member which contacts a part of the terminal in a longitudinal direction of the terminal and covers a whole circumference of the part, and a casing for holding the electronic component and the terminal and the pliant member. The casing is molded by a resin material with the electronic component, the terminal and the pliant member being insert-molded. The end portion of the terminal of an opposite side to the electronic component extends to an outer side of the casing. One part of the pliant member is covered by the casing and the other part thereof is exposed to the outer side of the casing. The pliant member is compressed in a direction substantially orthogonal to the longitudinal direction of the terminal.Type: GrantFiled: May 21, 2007Date of Patent: October 12, 2010Assignee: Denso CorporationInventors: Atsushi Yasuda, Isao Miyagawa
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Publication number: 20100240553Abstract: The invention is directed to the detection of multiple types of HPV with high specificity and high sensitivity. The invention provides primer sets, probes, and a kit containing the primer set and the probe, for type-specific HPV detection.Type: ApplicationFiled: August 1, 2008Publication date: September 23, 2010Applicant: KURASHIKI BOSEKI KABUSHIKI KAISHAInventors: Atsushi Morishita, Isao Miyagawa, Kazuhiko Kogoh, Akiko Kawakami, Naoki Ogawa
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Patent number: 7703322Abstract: A liquid level detecting device for detecting liquid level contained in a tank includes a float and an arm that moves in a prescribed manner when liquid level changes, a permanent magnet for forming a magnetic field, a hall IC for generating an electric signal in response to the motion of the magnetic field, a rotary member linked with the arm and the permanent magnet for moving the magnetic field relative to the hall IC as the float and the arm move, a terminal member for connecting the hall IC to an outside control circuit; and a mold body including a resinous holder for holding the hall IC and the terminal member. The resinous holder includes a sheath for insulating the hall IC from heat and mechanical stress generated when the mold body is formed.Type: GrantFiled: October 23, 2006Date of Patent: April 27, 2010Assignee: Denso CorporationInventors: Atsushi Yasuda, Isao Miyagawa
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Patent number: 7520167Abstract: A fuel level gauge is advantageously used in a fuel tank of an automobile. The fuel level gauge installed in a fuel tank includes a float floating on the fuel surface, a rotatable member supported by a stationary member and a detector such as a Hall element. The float is connected to the rotatable member through an arm member, and the rotatable member rotates according to positions of the float. Rotational positions of the rotatable member are detected by the detector. The arm member is electrically connected through a conducting member to a ground terminal to ground electrostatic charges that are generated by abrasion between the float and the fuel and accumulated in the arm member. The conducting member slidably connects the arm member to the ground member not to disturb smooth rotation of the rotatable member. Accuracy of the fuel level detection is maintained by grounding the electrostatic charges.Type: GrantFiled: October 13, 2006Date of Patent: April 21, 2009Assignee: Denso CorporationInventors: Isao Miyagawa, Mikio Muramatsu, Atsushi Yasuda
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Publication number: 20080312100Abstract: A method of simply and reliably hybridizing a sample biopolymer using a glass coverslip and a closed vessel by hybridizing the sample biopolymer and a probe biopolymer with each other in a state that a solution containing the sample biopolymer is in contact with only a slide glass to which the probe biopolymer is immobilized in a closed vessel containing a solution having the same vapor pressure as the solution containing the sample biopolymer is provided. A microarray and a kit for hybridization employed for the present invention are also provided.Type: ApplicationFiled: February 25, 2005Publication date: December 18, 2008Inventors: Isao Miyagawa, Yoshihiko Isagawa, Atsushi Morishita
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Patent number: 7458261Abstract: Two pairs of regulating means, that is, the first stopper and the second stopper, which regulate a rotary angle range of the magnet holder when the first stopper and the second stopper come into contact with the stopper of the arm integrally fixed to the magnet holder, are provided in the body which is a fixing member, and the rotary angle range of the magnet holder regulated by one pair of stoppers is made to be different from the rotary angle range of the magnet holder regulated by the other pair of stoppers. Due to the foregoing, when the expensive body is made to be a common part and a plurality of types of inexpensive arms are manufactured, the fuel level gauge can be provided, an increase in the manufacturing cost of which is suppressed, which can cope with rotary angle ranges of the plurality of types of arms.Type: GrantFiled: November 8, 2007Date of Patent: December 2, 2008Assignee: DENSO CORPORATIONInventor: Isao Miyagawa
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Publication number: 20080231267Abstract: A liquid level detecting device includes a rotative member having a bearing portion and a stationary member having an axis portion. The axis portion is fitted to a hole of the bearing portion, thereby rotatably holding the rotative member. The rotative member is integrated with a displacement member. The stationary member is fixed with a detection unit to detect a displacement of the displacement member. The rotative member is connected with a float via an arm. The axis portion has an inserted portion inserted in the bearing portion and in contact with the bearing portion via a contact portion. The contact portion has a total area that is less than an area of an outer circumferential periphery of the inserted portion.Type: ApplicationFiled: February 21, 2008Publication date: September 25, 2008Applicant: DENSO CORPORATIONInventors: Isao Miyagawa, Atsushi Yasuda
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Patent number: 7377163Abstract: Two pairs of regulating means, that is, the first stopper and the second stopper, which regulate a rotary angle range of the magnet holder when the first stopper and the second stopper come into contact with the stopper of the arm integrally fixed to the magnet holder, are provided in the body which is a fixing member, and the rotary angle range of the magnet holder regulated by one pair of stoppers is made to be different from the rotary angle range of the magnet holder regulated by the other pair of stoppers. Due to the foregoing, when the expensive body is made to be a common part and a plurality of types of inexpensive arms are manufactured, the fuel level gauge can be provided, an increase in the manufacturing cost of which is suppressed, which can cope with rotary angle ranges of the plurality of types of arms.Type: GrantFiled: December 7, 2004Date of Patent: May 27, 2008Assignee: DENSO CORPORATIONInventor: Isao Miyagawa
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Patent number: 7370527Abstract: A liquid level detecting apparatus has an ultrasonic sensor, a reflector, a first pipe and a second pipe. The reflector reflects an ultrasonic wave from the ultrasonic sensor to a liquid level, and the ultrasonic sensor detects a reflection wave reflected on the liquid level to detect a liquid level position. The first and second pipe surrounds the ultrasonic wave transmission path from the ultrasonic sensor via the reflector to the liquid level. The first pipe and the second pipe are integrally configured and supported on a bottom of a tank to be rotatable about the first pipe.Type: GrantFiled: January 3, 2006Date of Patent: May 13, 2008Assignee: Denso CorporationInventor: Isao Miyagawa
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Publication number: 20080072668Abstract: Two pairs of regulating means, that is, the first stopper and the second stopper, which regulate a rotary angle range of the magnet holder when the first stopper and the second stopper come into contact with the stopper of the arm integrally fixed to the magnet holder, are provided in the body which is a fixing member, and the rotary angle range of the magnet holder regulated by one pair of stoppers is made to be different from the rotary angle range of the magnet holder regulated by the other pair of stoppers. Due to the foregoing, when the expensive body is made to be a common part and a plurality of types of inexpensive arms are manufactured, the fuel level gauge can be provided, an increase in the manufacturing cost of which is suppressed, which can cope with rotary angle ranges of the plurality of types of arms.Type: ApplicationFiled: November 8, 2007Publication date: March 27, 2008Applicant: DENSO CORPORATIONInventor: Isao Miyagawa
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Publication number: 20070290681Abstract: An electrical device includes a terminal connected with an electronic component, a pliant member which contacts a part of the terminal in a longitudinal direction of the terminal and covers a whole circumference of the part, and a casing for holding the electronic component and the terminal and the pliant member. The casing is molded by a resin material with the electronic component, the terminal and the pliant member being insert-molded. The end portion of the terminal of an opposite side to the electronic component extends to an outer side of the casing. One part of the pliant member is covered by the casing and the other part thereof is exposed to the outer side of the casing. The pliant member is compressed in a direction substantially orthogonal to the longitudinal direction of the terminal.Type: ApplicationFiled: May 21, 2007Publication date: December 20, 2007Applicant: DENSO CORPORATIONInventors: Atsushi Yasuda, Isao Miyagawa
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Publication number: 20070090832Abstract: A liquid level detecting device for detecting liquid level contained in a tank includes a float and an arm that moves in a prescribed manner when liquid level changes, a permanent magnet for forming a magnetic field, a hall IC for generating an electric signal in response to the motion of the magnetic field, a rotary member linked with the arm and the permanent magnet for moving the magnetic field relative to the hall IC as the float and the arm move, a terminal member for connecting the hall IC to an outside control circuit; and a mold body including a resinous holder for holding the hall IC and the terminal member. The resinous holder includes a sheath for insulating the hall IC from heat and mechanical stress generated when the mold body is formed.Type: ApplicationFiled: October 23, 2006Publication date: April 26, 2007Applicant: DENSO CORPORTIONInventors: Atsushi Yasuda, Isao Miyagawa
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Publication number: 20070085532Abstract: A fuel level gauge is advantageously used in a fuel tank of an automobile. The fuel level gauge installed in a fuel tank includes a float floating on the fuel surface, a rotatable member supported by a stationary member and a detector such as a Hall element. The float is connected to the rotatable member through an arm member, and the rotatable member rotates according to positions of the float. Rotational positions of the rotatable member are detected by the detector. The arm member is electrically connected through a conducting member to a ground terminal to ground electrostatic charges that are generated by abrasion between the float and the fuel and accumulated in the arm member. The conducting member slidably connects the arm member to the ground member not to disturb smooth rotation of the rotatable member. Accuracy of the fuel level detection is maintained by grounding the electrostatic charges.Type: ApplicationFiled: October 13, 2006Publication date: April 19, 2007Applicant: DENSO CORPORATIONInventors: Isao Miyagawa, Mikio Muramatsu, Atsushi Yasuda
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Patent number: 7204142Abstract: A guide pipe is formed from a metal material, and its internal cross section has a circular shape whose diametric dimension gradually becomes smaller with a distance from an ultrasonic sensor. That is, the guide pipe is formed so that a route for transmitting an ultrasonic wave generated from the ultrasonic sensor may be tapered from this ultrasonic sensor toward a reflector plate. Thus, the acoustic pressure level of the ultrasonic wave which enters the reflector plate can be made higher than a value in a prior-art liquid level detecting apparatus. Accordingly, the energy of the ultrasonic wave generated from the ultrasonic sensor can be utilized for liquid level detection at a high efficiency, so that a fuel liquid level detecting apparatus capable of accurate liquid level detection can be provided.Type: GrantFiled: August 31, 2006Date of Patent: April 17, 2007Assignee: Denso CorporationInventors: Isao Miyagawa, Atsushi Yasuda