Patents by Inventor Hiroyasu Tsuji
Hiroyasu Tsuji 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: 7744439Abstract: The present invention provides an image display device capable of displaying a good image by suppressing yellowing of a glass substrate, and a high-yield manufacturing method of the glass substrate. The image display device is formed of a front-side glass substrate and a back-side glass substrate. In this manufacturing method, a glass substrate is used as the front-side glass substrate when Sn++ content in the glass substrate is a predetermined value or less, and the glass substrate is used as the back-side glass substrate when the Sn++ content exceeds the predetermined value.Type: GrantFiled: April 12, 2007Date of Patent: June 29, 2010Assignee: Panasonic CorporationInventors: Daisuke Adachi, Hiroyasu Tsuji, Keisuke Sumida
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Patent number: 7545561Abstract: Provided are an image display device capable of displaying a good image by suppressing yellowing of a glass substrate, and an evaluating method of the glass substrate. The image display device is formed using the glass substrate where reflectance at wavelength of 220 nm is 5% or lower. In the evaluating method of the glass substrate for the image display device, Sn++ content in the glass substrate is analyzed using reflectance at wavelength of 220 nm.Type: GrantFiled: November 27, 2003Date of Patent: June 9, 2009Assignee: Panasonic CorporationInventors: Daisuke Adachi, Hiroyasu Tsuji, Keisuke Sumida
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Patent number: 7495393Abstract: The present invention provides an image display device capable of displaying a good image by suppressing yellowing of a glass substrate, and a high-yield manufacturing method of the glass substrate. The image display device is formed of a front-side glass substrate and a back-side glass substrate. In this manufacturing method, a glass substrate is used as the front-side glass substrate when Sn++ content in the glass substrate is a predetermined value or less, and the glass substrate is used as the back-side glass substrate when the Sn++ content exceeds the predetermined value.Type: GrantFiled: November 27, 2003Date of Patent: February 24, 2009Assignee: Panasonic CorporationInventors: Daisuke Adachi, Hiroyasu Tsuji, Keisuke Sumida
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Patent number: 7487649Abstract: The present invention provides a manufacturing method of a glass substrate for an image display device having high picture quality. The reducing force in a float furnace is controlled to be decreased so that Sn++ content on a surface of the glass substrate forming an Ag electrode is a predetermined value or less. When the resultant Sn++ content on the surface of the glass substrate forming the Ag electrode exceeds the predetermined value, the surface is partially removed to decrease the Sn++ content to the predetermined value or less to suppress the occurrence of yellowing of the glass substrate.Type: GrantFiled: November 27, 2003Date of Patent: February 10, 2009Assignee: Panasonic CorporationInventors: Daisuke Adachi, Hiroyasu Tsuji, Keisuke Sumida
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Publication number: 20080049305Abstract: The present invention provides an image display device capable of displaying a good image by suppressing yellowing of a glass substrate, and an evaluating method of the glass substrate. The image display device is formed using the glass substrate where reflectance at wavelength of 220 nm is 5% or lower. In the evaluating method of the glass substrate for the image display device, Sn++ content in the glass substrate is analyzed using reflectance at wavelength of 220 nm.Type: ApplicationFiled: September 19, 2007Publication date: February 28, 2008Inventors: Daisuke Adachi, Hiroyasu Tsuji, Keisuke Sumida
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Publication number: 20070209394Abstract: The present invention provides an image display device capable of displaying a good image by suppressing yellowing of a glass substrate, and a high-yield manufacturing method of the glass substrate. The image display device is formed of a front-side glass substrate and a back-side glass substrate. In this manufacturing method, a glass substrate is used as the front-side glass substrate when Sn++ content in the glass substrate is a predetermined value or less, and the glass substrate is used as the back-side glass substrate when the Sn++ content exceeds the predetermined value.Type: ApplicationFiled: April 12, 2007Publication date: September 13, 2007Inventors: Daisuke Adachi, Hiroyasu Tsuji, Keisuke Sumida
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Patent number: 7125304Abstract: A transition section for relieving the temperature difference between a front and a back of a substrate is provided before a temperature section at which constituent elements are fired. As a result, a method of manufacturing a plasma display panel and a firing apparatus, where the temperature difference between the front and the back of the substrate in a substrate-moving direction is prevented and the constituent elements are fired well, can be provided.Type: GrantFiled: February 6, 2003Date of Patent: October 24, 2006Assignee: Matsushita Electric Industrial Co., LtdInventors: Hiroyasu Tsuji, Makoto Morita, Masanori Suzuki
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Patent number: 7083491Abstract: A method of manufacturing plasma display panels includes using a firing device that allows preferable firing of panel components by cleaning each setter. A cleaning section provided in a lower passage of the firing device allows removal and cleaning of abrasion powder generated while setter is transported by rotation of rollers. This reduces attachment or mixing of abrasion powder to a panel component.Type: GrantFiled: June 9, 2003Date of Patent: August 1, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroyasu Tsuji, Makoto Morita, Masanori Suzuki
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Patent number: 7083489Abstract: Disclosed is a method of manufacturing PDPs, and a firing device that allows preferable firing of panel components by controlling each setter. Transportation structure configured by disposing rollers in a transport direction of a substrate allows firing of a panel component while transporting the substrate placed on a setter. An ID identification device for identifying a setter using an ID area provided on the setter is provided on a firing device. Panel components are fired using this firing device for controlling information such as a number of heatings of each setter.Type: GrantFiled: June 9, 2003Date of Patent: August 1, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroyasu Tsuji, Makoto Morita, Masanori Suzuki
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Patent number: 6998578Abstract: A baking system for a plasma display panel which comprises a clean room 1 and a baking furnace having an upper passage 11 for conveying a plasma display panel glass substrate 5 during baking from an inlet 15 of the furnace 3, and a lower passage 13 for conveying the baked substrate 5 in the upper passage 11 towards an outlet of the furnace 3, both of the inlet and the outlet being provided at the same end of the furnace 3, characterized in that only the inlet 15 and the outlet 17 are connected to a clean room 1, while keeping a body thereof outside the clean room 1. Also, there is disclosed a layout method for such a baking system.Type: GrantFiled: April 24, 2003Date of Patent: February 14, 2006Assignees: NGK Insulators, Ltd., Matsushita Electric Industrial Co., Ltd.Inventors: Hiroyasu Tsuji, Makoto Morita, Masanori Suzuki, Hihuo Noiri, Michiro Aoki, Takahiro Takeda
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Publication number: 20050160768Abstract: The present invention provides a manufacturing method of a glass substrate for an image display device having high picture quality. Reducing force in a float furnace is controlled to be decreased so that Sn++ content on a surface of the glass substrate forming an Ag electrode is a predetermined value or less. When the resultant Sn++ content on the surface of the glass substrate forming the Ag electrode exceeds the predetermined value, the surface is partially removed to decrease the Sn++ content to the predetermined value or less to suppress occurrence of yellowing of the glass substrate.Type: ApplicationFiled: November 27, 2003Publication date: July 28, 2005Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Daisuke Adachi, Hiroyasu Tsuji, Keisuke Sumida
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Publication number: 20050073475Abstract: The present invention provides an image display device capable of displaying a good image by suppressing yellowing of a glass substrate, and a high-yield manufacturing method of the glass substrate. The image display device is formed of a front-side glass substrate and a back-side glass substrate. In this manufacturing method, a glass substrate is used as the front-side glass substrate when Sn++ content in the glass substrate is a predetermined value or less, and the glass substrate is used as the back-side glass substrate when the Sn++ content exceeds the predetermined value.Type: ApplicationFiled: November 27, 2003Publication date: April 7, 2005Inventors: Daisuke Adachi, Hiroyasu Tsuji, Keisuke Sumida
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Publication number: 20050062416Abstract: The present invention provides an image display device capable of displaying a good image by suppressing yellowing of a glass substrate, and an evaluating method of the glass substrate. The image display device is formed using the glass substrate where reflectance at wavelength of 220 nm is 5% or lower. In the evaluating method of the glass substrate for the image display device, Sn++ content in the glass substrate is analyzed using reflectance at wavelength of 220 nm.Type: ApplicationFiled: November 27, 2003Publication date: March 24, 2005Inventors: Daisuke Adachi, Hiroyasu Tsuji, Keisuke Sumida
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Publication number: 20040198130Abstract: A method of manufacturing plasma display panels and a firing device that allows preferable firing of panel components by cleaning each setter. Cleaning means 105 provided in lower passage 23c allows removal and cleaning of abrasion powder generated while setter 103 is transported by rotation of rollers 22a, 23a, and 24a. This reduces attachment or mixing of abrasion powder to a panel component.Type: ApplicationFiled: December 1, 2003Publication date: October 7, 2004Inventors: Hiroyasu Tsuji, Makoto Morita, Masanori Suzuki
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Publication number: 20040180600Abstract: A transition section for relieving temperature difference between a fore and a back of a substrate is provided before a temperature section at which constituent elements are fired. As a result, a method of manufacturing a plasma display panel and a firing apparatus, where the temperature difference between the fore and the back of the substrate in a substrate-moving direction is prevented and the constituent elements are fired well, can be provided.Type: ApplicationFiled: February 9, 2004Publication date: September 16, 2004Inventors: Hiroyasu Tsuji, Makoto Morita, Masanori Suzuki
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Publication number: 20040164928Abstract: A method of manufacturing PDPs and a firing device that allows preferable firing of panel components by controlling each setter. Transportation means 22, 23, and 24 configured by disposing rollers 22a, 23a, and 24a in a transport direction of substrate 101 allows firing of panel component 102 while transporting substrate 101 placed on setter 103. ID identification means 105 for identifying setter 103 using an ID area provided on setter 103 is provided on firing device 21. Panel components 102 are fired using this firing device 21 for controlling information such as the number of heatings of each setter 103.Type: ApplicationFiled: December 2, 2003Publication date: August 26, 2004Inventors: Hiroyasu Tsuji, Makoto Morita, Masanori Suzuki
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Publication number: 20030232562Abstract: A baking system for a plasma display panel which comprises a clean room 1 and a baking furnace having an upper passage 11 for conveying a plasma display panel glass substrate 5 during baking from an inlet 15 of the furnace 3, and a lower passage 13 for conveying the baked substrate 5 in the upper passage 11 towards an outlet of the furnace 3, both of the inlet and the outlet being provided at the same end of the furnace 3, characterized in that only the inlet 15 and the outlet 17 are connected to a clean room 1, while keeping a body thereof outside the clean room 1. Also, there is disclosed a layout method for such a baking system.Type: ApplicationFiled: April 24, 2003Publication date: December 18, 2003Applicants: NGK Insulators, Ltd., Matsushita Electric Industrial Co., Ltd.Inventors: Hiroyasu Tsuji, Makoto Morita, Masanori Suzuki, Hihuo Noiri, Michiro Aoki, Takahiro Takeda
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Patent number: 6493194Abstract: A thin film magnetic head which includes a magnetoresistive layer selectively formed; a magnetic bias layer sandwiching said magnetoresistive layer; a pair of leads for detecting magnetic resistance; and a cap layer formed under the lead between the magnetoresistive layer. This configuration enables to accurately specify a magnetic response region by both ends of the cap layers, concentrating the current from the lead onto the magnetic response region through a tip of the cap layer for improving a S/N ratio.Type: GrantFiled: March 30, 2000Date of Patent: December 10, 2002Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masaya Sakaguchi, Hiroyasu Tsuji, Satoru Mitani, Tadashi Kimura, Hiroyoshi Sekiguchi
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Patent number: 6407004Abstract: As an electrically conductive layer or a lower layer of conductor layers to be patterned, a conductor layer which is dry-etchable with an oxygen-containing gas is provided. A dry etching process of the conductor layer with the oxygen-containing gas is performed highly selectively to a ground film.Type: GrantFiled: May 12, 2000Date of Patent: June 18, 2002Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Tadashi Kimura, Isao Muragishi, Hiroyoshi Sekiguchi, Masaya Sakaguchi, Hiroyasu Tsuji, Satoru Mitani
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Patent number: 6407885Abstract: A thin film magnetic head that provides, despite a narrow head track width, strong recording magnetic fields and demonstrates a sufficiently high recording capability for the high Hc recording media. The lower magnetic pole is formed with a lower write chip section and a shared shield section, while the upper magnetic pole is formed with an upper write chip section and a yoke section. The lower and upper write chip sections are made of a high Bs magnetic material, the yoke section is made of a high &rgr; magnetic material, and the shared shield section is made of permalloy or the like magnetic material. The upper write chip section is longer than the lower write chip section (which corresponds to the head gap depth); this configuration makes the contact area with the yoke section greater, even if the head track width is narrow, and provides strong recording magnetic fields.Type: GrantFiled: March 28, 2000Date of Patent: June 18, 2002Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akira Ahagon, Masaya Sakaguchi, Hiroyasu Tsuji, Satoru Mitani