Patents by Inventor Yukio Mizukami
Yukio Mizukami 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: 7882747Abstract: The invention presents a strain sensor includes a substrate, a crystallized glass laminated on the substrate, a strain sensitive resistor laminated on the crystallized glass, in which the crystallized glass is formed by baking a plurality of types of crystallized glass powder having different thermomechanical constants. As a result, the fluctuation of sensor characteristic is decreased, and the cost is lowered.Type: GrantFiled: December 20, 2005Date of Patent: February 8, 2011Assignee: Panasonic CorporationInventors: Keiichi Nakao, Yukio Mizukami, Hiroaki Ishida, Koichi Aburata
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Publication number: 20080233370Abstract: The invention presents a strain sensor includes a substrate, a crystallized glass laminated on the substrate, a strain sensitive resistor laminated on the crystallized glass, in which the crystallized glass is formed by baking a plurality of types of crystallized glass powder having different thermomechanical constants. As a result, the fluctuation of sensor characteristic is decreased, and the cost is lowered.Type: ApplicationFiled: December 20, 2005Publication date: September 25, 2008Inventors: Keiichi Nakao, Yukio Mizukami, Hiroaki Ishida, Koichi Aburata
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Patent number: 7397340Abstract: A load sensor includes a substrate, a glass layer provided on the substrate, a wiring provided on the glass layer, an adjusting layer provided on the glass layer, and a strain-sensitive resistor element provided on the adjusting layer and connected to the wiring. A thermal expansion coefficient of the adjusting layer is closer to that of the strain-sensitive resistor element than that of the glass layer. In this load sensor, a stress remaining inside the resistor element is reduced, and the change over time of the resistance of the element is accordingly suppressed. Therefore, a single kind of the resistor element can be formed on substrates having respective thermal expansion coefficients, shapes, and thicknesses, thereby providing various load sensors having respective specifications.Type: GrantFiled: October 28, 2004Date of Patent: July 8, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Keiichi Nakao, Yukio Mizukami
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Patent number: 7181831Abstract: A strain sensor comprising a metal substrate, a first electrode provided on the metal substrate, a glass layer formed on the first electrode, and a second electrode and a strain detecting resistor provided on the glass layer. In the strain sensor, the insulation resistance between the metal substrate and the second electrode has been raised, and the reliability is high. It can be implemented at low cost.Type: GrantFiled: September 10, 2004Date of Patent: February 27, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Keiichi Nakao, Yukio Mizukami, Hiroaki Ishida, Toshiro Otobe
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Patent number: 7164342Abstract: The present invention relates to a load sensor and provides a highly accurate load sensor with multi-layered wiring at low costs. It provides crystallized glass and non-crystalline glass which are best for a load sensor, and combines these to form multi-layered wiring, and further, makes a glass layer of composite type as needed, and reduces uneven printing in printing multiple layers with use of hardening type paste.Type: GrantFiled: August 7, 2003Date of Patent: January 16, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Keiichi Nakao, Yukio Mizukami, Hiroaki Ishida, Masaaki Katsumata
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Patent number: 7104138Abstract: A strain detector includes an insulating substrate, a power electrode, output electrodes and a ground electrode which are disposed over the insulating substrate, a strain-resistance element provided over the insulating substrate and coupled to the power electrode, the output electrodes and the ground electrode, a protective layer over the strain-resistance element, a frame ground electrode. The insulating substrate includes a stainless steel board, a protective coat on the stainless steel board, and an insulating layer on the protective coat. The frame ground electrode is provided over the stainless steel board and electrically coupled to the stainless board.Type: GrantFiled: April 21, 2004Date of Patent: September 12, 2006Assignee: Matsushita Electric Industrial, Co., Ltd.Inventors: Toshirou Otobe, Takashi Kawai, Yukio Mizukami
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Patent number: 7043996Abstract: A strain sensor includes a metal plate, a first glass layer on the metal plate, a second glass layer provided on the first glass layer and having a color different from that of the first glass layer, an electrode on the second glass layer, a strain-sensitive resistor on the second glass layer, a circuit pattern on the second glass layer for connecting the electrode to the strain-sensitive resistor, and an overcoat glass layer for covering the strain-sensitive resistor and the circuit pattern. The strain sensor allows the layers to be identified while being manufactured, hence being controlled easily in its manufacturing processes.Type: GrantFiled: September 17, 2002Date of Patent: May 16, 2006Assignee: Matsushita Electric Industrial Co., Inc.Inventors: Yukio Mizukami, Hiroaki Ishida, Toshiro Otobe, Keiichi Nakao
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Patent number: 7010986Abstract: A strain sensor comprising a metal substrate, a first electrode provided on the metal substrate, a glass layer formed on the first electrode, and a second electrode and a strain detecting resistor provided on the glass layer. In the strain sensor, the insulation resistance between the metal substrate and the second electrode has been raised, and the reliability is high. It can be implemented at low cost.Type: GrantFiled: October 2, 2002Date of Patent: March 14, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Keiichi Nakao, Yukio Mizukami, Hiroaki Ishida, Toshiro Otobe
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Publication number: 20060001521Abstract: A load sensor includes a substrate, a glass layer provided on the substrate, a wiring provided on the glass layer, an adjusting layer provided on the glass layer, and a strain-sensitive resistor element provided on the adjusting layer and connected to the wiring. A thermal expansion coefficient of the adjusting layer is closer to that of the strain-sensitive resistor element than that of the glass layer. In this load sensor, a stress remaining inside the resistor element is reduced, and the change over time of the resistance of the element is accordingly suppressed. Therefore, a single kind of the resistor element can be formed on substrates having respective thermal expansion coefficients, shapes, and thicknesses, thereby providing various load sensors having respective specifications.Type: ApplicationFiled: October 28, 2004Publication date: January 5, 2006Inventors: Keiichi Nakao, Yukio Mizukami
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Publication number: 20050085393Abstract: The present invention relates to a load sensor and provides a highly accurate load sensor with multi-layered wiring at low costs. It provides crystallized glass and non-crystalline glass which are best for a load sensor, and combines these to form multi-layered wiring, and further, makes a glass layer of composite type as needed, and reduces uneven printing in printing multiple layers with use of hardening type paste.Type: ApplicationFiled: August 7, 2003Publication date: April 21, 2005Inventors: Keiichi Nakao, Yukio Mizukami, Hiroaki Ishida, Masaaki Katsumata
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Publication number: 20050028605Abstract: A strain sensor comprising a metal substrate, a first electrode provided on the metal substrate, a glass layer formed on the first electrode, and a second electrode and a strain detecting resistor provided on the glass layer. In the strain sensor, the insulation resistance between the metal substrate and the second electrode has been raised, and the reliability is high. It can be implemented at low cost.Type: ApplicationFiled: September 10, 2004Publication date: February 10, 2005Applicant: Matsushita Elec. Ind. Co. Ltd.Inventors: Keiichi Nakao, Yukio Mizukami, Hiroaki Ishida, Toshiro Otobe
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Patent number: 6842965Abstract: A strain detector where water does not reach a strain-resistance element and which supplies stable output at all times is provided. In the strain detector, a first protective layer made of glass is disposed to cover an insulating substrate and the strain-resistance element. A second protective layer made of resins or glass for covering the first protective layer, and a thermistor for compensating the resistance of the strain-resistance element are disposed.Type: GrantFiled: July 2, 2002Date of Patent: January 18, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Toshirou Otobe, Takashi Kawai, Yukio Mizukami
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Publication number: 20050000297Abstract: A strain detector includes an insulating substrate, a power electrode, output electrodes and a ground electrode which are disposed over the insulating substrate, a strain-resistance element provided over the insulating substrate and coupled to the power electrode, the output electrodes and the ground electrode, a protective layer over the strain-resistance element, a frame ground electrode. The insulating substrate includes a stainless steel board, a protective coat on the stainless steel board, and an insulating layer on the protective coat. The frame ground electrode is provided over the stainless steel board and electrically coupled to the stainless board.Type: ApplicationFiled: April 21, 2004Publication date: January 6, 2005Inventors: Toshirou Otobe, Takashi Kawai, Yukio Mizukami
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Publication number: 20040216529Abstract: A strain sensor includes a metal plate, a first glass layer on the metal plate, a second glass layer provided on the first glass layer and having a color different from that of the first glass layer, an electrode on the second glass layer, a strain-sensitive resistor on the second glass layer, a circuit pattern on the second glass layer for connecting the electrode to the strain-sensitive resistor, and an overcoat glass layer for covering the strain-sensitive resistor and the circuit pattern. The strain sensor allows the layers to be identified while being manufactured, hence being controlled easily in its manufacturing processes.Type: ApplicationFiled: April 20, 2004Publication date: November 4, 2004Inventors: Yukio Mizukami, Hiroaki Ishida, Toshiro Otobe, Keiichi Nakao
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Patent number: 6761073Abstract: A strain detector where water does not reach a strain-resistance element and which supplies stable output at all times is provided. In the strain detector, a first protective layer made of glass is disposed to cover an insulating substrate and the strain-resistance element. A second protective layer made of resins or glass for covering the first protective layer, and a thermistor for compensating the resistance of the strain-resistance element are disposed.Type: GrantFiled: December 28, 2000Date of Patent: July 13, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Toshirou Otobe, Takashi Kawai, Yukio Mizukami
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Publication number: 20040079162Abstract: A strain sensor comprising a metal substrate, a first electrode provided on the metal substrate, a glass layer formed on the first electrode, and a second electrode and a strain detecting resistor provided on the glass layer. In the strain sensor, the insulation resistance between the metal substrate and the second electrode has been raised, and the reliability is high. It can be implemented at low cost.Type: ApplicationFiled: June 25, 2003Publication date: April 29, 2004Inventors: Keiichi Nakao, Yukio Mizukami, Hiroaki Ishida, Toshiro Otobe
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Publication number: 20030000073Abstract: A strain detector where water does not reach a strain-resistance element and which supplies stable output at all times is provided. In the strain detector, a first protective layer made of glass is disposed to cover an insulating substrate and the strain-resistance element. A second protective layer made of resins or glass for covering the first protective layer, and a thermistor for compensating the resistance of the strain-resistance element are disposed.Type: ApplicationFiled: July 2, 2002Publication date: January 2, 2003Inventors: Toshirou Otobe, Takashi Kawai, Yukio Mizukami
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Publication number: 20010004848Abstract: A strain detector where water does not reach a strain-resistance element and which supplies stable output at all times is provided. In the strain detector, a first protective layer made of glass is disposed to cover an insulating substrate and the strain-resistance element. A second protective layer made of resins or glass for covering the first protective layer, and a thermistor for compensating the resistance of the strain-resistance element are disposed.Type: ApplicationFiled: December 28, 2000Publication date: June 28, 2001Inventors: Toshirou Otobe, Takashi Kawai, Yukio Mizukami
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Patent number: 4789413Abstract: A process for preparing permeable adhesive tapes, which comprises dispersing water or water and a water absorptive high-molecular weight compound homogeneously in a solution of a natural or synthethic rubber or acrylic pressure sensitive adhesive agent in an organic solvent, applying the dispersion onto a releasing agent applied sheet, drying the adhesive agent applied sheet, and laminating a porous backing material on the adhesive agent applied surface to obtain a permeable adhesive tape.Type: GrantFiled: June 10, 1986Date of Patent: December 6, 1988Assignee: Sankyo Chemical Co., Ltd.Inventors: Naoyuki Tani, Motomu Ueno, Kusutaro Yoshida, Yukio Mizukami