Patents by Inventor Kou Komatsu
Kou Komatsu 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: 8474309Abstract: A waveform detector detects a variation in fuel pressure generated by an injection based on a detection value of a fuel pressure sensor as a fuel pressure waveform. A differential calculator calculates a differential waveform representing a variation in differential value of the fuel pressure waveform. A noise determiner determines that noise overlaps with the fuel pressure waveform when the differential waveform has a value higher than a predetermined upper threshold or when the differential waveform has a value lower than a predetermined lower threshold.Type: GrantFiled: November 21, 2011Date of Patent: July 2, 2013Assignee: Denso CorporationInventor: Kou Komatsu
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Patent number: 8370094Abstract: A detecting device for a fuel injector includes a sensor unit and an ECU. The sensor unit is provided with a fuel pressure detection circuit which outputs a pressure detection signal in response to a fuel pressure. The ECU computes the fuel pressure based on a voltage value of the pressure detection signal relative to a reference voltage. The ECU obtains a comparative voltage according to an applied-voltage to the fuel pressure detection circuit and computes a deviation between the comparative voltage and the reference voltage. The sensor unit adjusts the applied-voltage in such a manner as to decrease the deviation. Thus, the computation accuracy of the fuel pressure is improved.Type: GrantFiled: June 9, 2010Date of Patent: February 5, 2013Assignee: Denso CorporationInventor: Kou Komatsu
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Publication number: 20120144907Abstract: A waveform detector detects a variation in fuel pressure generated by an injection based on a detection value of a fuel pressure sensor as a fuel pressure waveform. A differential calculator calculates a differential waveform representing a variation in differential value of the fuel pressure waveform. A noise determiner determines that noise overlaps with the fuel pressure waveform when the differential waveform has a value higher than a predetermined upper threshold or when the differential waveform has a value lower than a predetermined lower threshold.Type: ApplicationFiled: November 21, 2011Publication date: June 14, 2012Applicant: DENSO CORPORATIONInventor: Kou KOMATSU
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Patent number: 7981240Abstract: Under a vacuum atmosphere, while keeping two members in contact with each other with a bonding material therebetween, one of the members is moved relative to the bonding surface in the horizontal direction, and the bonding material between the members is pressed. The surface oxide film of the bonding material, which is a low melting point metal, is thereby broken effectively, and highly hermetic bonding is performed.Type: GrantFiled: August 31, 2009Date of Patent: July 19, 2011Assignee: Canon Kabushiki KaishaInventors: Tokutaka Miura, Mitsutoshi Hasegawa, Kou Komatsu
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Patent number: 7951256Abstract: In a method of making a vacuum vessel having a pair of plates including a face plate and a rear plate bonded to each other using a bonding member, a bonding member is applied to a periphery of at least one of a pair of plates, the plates are placed in contact with each other through the bonding member disposed therebetween, parts of sides of the plates are fastened to each other using a positioning jig made of bimetal, the plates are separated from each other by placing the plates in an atmosphere and by thermally deforming the positioning jig, and the plates are fixed to each other around the entire peripheries thereof using the bonding member by performing cooling so as to reduce thermal deformation of the positioning jig and making the plates contact each other through the bonding member disposed therebetween.Type: GrantFiled: September 15, 2009Date of Patent: May 31, 2011Assignee: Canon Kabushiki KaishaInventors: Kou Komatsu, Tokutaka Miura, Mitsutoshi Hasegawa
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Patent number: 7857674Abstract: A bonding member, which can achieve a sufficient degree of vacuum without forming a gap caused by air bubbles that have been released out through the surface of the bonding member, a bonding method, an image display apparatus, and a manufacturing method therefor. The bonding member 92 of a strip has a first portion 92a and a second portion 92b. The first portion 92a has a uniform thickness t1. The second portion 92b has a smaller thickness t2 than the thickness t1 of the first portion 92a and constitutes a side plane of the bonding member 92. The second portion 92b also has a shape such that a convexity and a concavity alternate along a longitudinal direction of the bonding member 92.Type: GrantFiled: December 16, 2008Date of Patent: December 28, 2010Assignee: Canon Kabushiki KaishaInventors: Mitsutoshi Hasegawa, Kazuo Koyanagi, Tokutaka Miura, Kou Komatsu, Nobuhiro Ito
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Publication number: 20100312501Abstract: A detecting device for a fuel injector includes a sensor unit and an ECU. The sensor unit is provided with a fuel pressure detection circuit which outputs a pressure detection signal in response to a fuel pressure. The ECU computes the fuel pressure based on a voltage value of the pressure detection signal relative to a reference voltage. The ECU obtains a comparative voltage according to an applied-voltage to the fuel pressure detection circuit and computes a deviation between the comparative voltage and the reference voltage. The sensor unit adjusts the applied-voltage in such a manner as to decrease the deviation. Thus, the computation accuracy of the fuel pressure is improved.Type: ApplicationFiled: June 9, 2010Publication date: December 9, 2010Applicant: DENSO CORPORATIONInventor: Kou Komatsu
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Publication number: 20100084073Abstract: In a method of making a vacuum vessel having a pair of plates including a face plate and a rear plate bonded to each other using a bonding member, a bonding member is applied to a periphery of at least one of a pair of plates, the plates are placed in contact with each other through the bonding member disposed therebetween, parts of sides of the plates are fastened to each other using a positioning jig made of bimetal, the plates are separated from each other by placing the plates in an atmosphere and by thermally deforming the positioning jig, and the plates are fixed to each other around the entire peripheries thereof using the bonding member by performing cooling so as to reduce thermal deformation of the positioning jig and making the plates contact each other through the bonding member disposed therebetween.Type: ApplicationFiled: September 15, 2009Publication date: April 8, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Kou Komatsu, Tokutaka Miura, Mitsutoshi Hasegawa
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Publication number: 20100065204Abstract: Under a vacuum atmosphere, while keeping two members in contact with each other with a bonding material therebetween, one of the members is moved relative to the bonding surface in the horizontal direction, and the bonding material between the members is pressed. The surface oxide film of the bonding material, which is a low melting point metal, is thereby broken effectively, and highly hermetic bonding is performed.Type: ApplicationFiled: August 31, 2009Publication date: March 18, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Tokutaka Miura, Mitsutoshi Hasegawa, Kou Komatsu
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Publication number: 20090173424Abstract: A bonding member, which can achieve a sufficient degree of vacuum without forming a gap caused by air bubbles that have been released out through the surface of the bonding member, a bonding method, an image display apparatus, and a manufacturing method therefor. The bonding member 92 of a strip has a first portion 92a and a second portion 92b. The first portion 92a has a uniform thickness t1. The second portion 92b has a smaller thickness t2 than the thickness t1 of the first portion 92a and constitutes a side plane of the bonding member 92. The second portion 92b also has a shape such that a convexity and a concavity alternate along a longitudinal direction of the bonding member 92.Type: ApplicationFiled: December 16, 2008Publication date: July 9, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Mitsutoshi Hasegawa, Kazuo Koyanagi, Tokutaka Miura, Kou Komatsu, Nobuhiro Ito