Patents by Inventor Yoshihiro Izumi
Yoshihiro Izumi 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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Publication number: 20030227592Abstract: A wiring substrate is arranged so that a first periphery electric wiring and a second periphery electric wiring are patterned on an active matrix substrate, and a TCP as a electronic component is provided on a portion of the patterned electric wiring. The first periphery electric wiring and the second periphery electric wiring are formed by including a metal thin film and a transferred metal film. Further, in the portion where the TCP is provided, the first periphery electric wiring and the second periphery electric wiring either have a monolayer structure with one of the metal thin film and the transferred metal film, or have a lamination structure with both of the metal thin film and the transferred metal film. On this account, connection failure can be prevented on a low resistance wiring substrate.Type: ApplicationFiled: June 5, 2003Publication date: December 11, 2003Inventors: Yoshihiro Izumi, Toshihiko Nakagawa
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Publication number: 20030214475Abstract: A display medium includes a sheet having a first main surface and a second main surface opposite to each other, a first area where information is statically displayed, and a second area where information is dynamically displayed. A static display medium is located in the first area of the sheet and a dynamic display medium is located in the second area of the sheet. The static display medium and the dynamic display medium are integrated in the sheet and form a portion of the sheet, and are preferably substantially flush with one of the first main surface and the second main surface of the sheet. The static display medium and the dynamic display medium share at least one common element including one of a conductive ink, a black matrix and a color filter.Type: ApplicationFiled: May 14, 2003Publication date: November 20, 2003Applicant: Sharp Kabushiki KaishaInventors: Yoshihiro Izumi, Masahiro Shimizu
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Patent number: 6649438Abstract: A TFT array is formed on a glass substrate (step P1). A surface protection layer is formed on the glass substrate so as to cover the TFT array (step P2). The glass substrate is divided to form active matrix, substrates with the surface protection layer being provided (step P3). The divided active matrix substrate is chamfered along its edges (step P4). The surface protection layer is removed from the active matrix substrate (step P5). An X-ray conductive layer is formed on the TFT array where the surface protection layer has been removed (step P6). By these steps, pollutants produced during the division and chamfering of the glass substrate are prevented from polluting the TFT array and the X-ray conductive layer, and the active element array and the semiconductor layer is prevented from deteriorating in terms of performance in manufacturing process for a two-dimensional image detector.Type: GrantFiled: December 27, 2002Date of Patent: November 18, 2003Assignee: Sharp Kabushiki KaishaInventors: Yoshihiro Izumi, Osamu Teranuma, Toshinori Yoshimuta, Shinya Hirasawa
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Publication number: 20030209736Abstract: On a transparent electrically insulating substrate, formed are a scanning line, and a gate electrode of a switching element, further formed are a gate insulating film, a semiconductor layer, an n+-Si layer to be formed into a source electrode and a drain electrode. After the patterning of the foregoing structure, the dielectric film is formed, and the portion corresponding to the contact hole is removed by etching, and photosensitive resin is applied to form the interlayer insulating film. Then, the transparent electrode is extended from the pixel electrode over the switching element, whereon a conversion layer and a gold layer for use in electrode are vapor-deposited. In this structure, an increase in capacitor between the pixel electrode and the signal line can be suppressed by the interlayer insulating film, and the transparent electrode functions as a top gate and release excessive electric charge.Type: ApplicationFiled: June 11, 2003Publication date: November 13, 2003Applicant: SHARP KABUSHIKI KAISHAInventors: Hisashi Nagata, Yoshihiro Izumi
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Patent number: 6646266Abstract: In the present invention, the thickness of an insulating resin 6, in an area Y1 of an active matrix substrate 2 on which a semiconductor film 3 is formed, is equal to the thickness in an area X1 of the active matrix substrate 2 on which the semiconductor film 3 is not formed. On this account, in a flat panel image sensor 1, stress generated inside the insulating resin 6 is reduced, warpage of the active matrix substrate 2 is prevented in advance, and impact resistance of the flat panel image sensor 1 is improved.Type: GrantFiled: December 20, 2001Date of Patent: November 11, 2003Assignee: Sharp Kabushiki KaishaInventor: Yoshihiro Izumi
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Publication number: 20030207567Abstract: A SnO2 film having a prescribed pattern feature is formed on a substrate by a wet film-formation technology (e.g., sol-gel method). A Ni film is formed on the SnO2 film by an electroless plating method. The electroless plating method is conducted in the presence of at least one sulfur-containing compound selected from the group consisting of thiosulfates, thiocyanates and sulfur-containing organic compounds.Type: ApplicationFiled: June 5, 2003Publication date: November 6, 2003Applicants: Sharp Kabushiki Kaisha, Meltex, Inc., Sumitomo Osaka Cemento Co., Ltd.Inventors: Yoshihiro Izumi, Yoshimasa Chikama, Satoshi Kawashima, Takaharu Hashimoto, Itsuji Yoshikawa, Masaaki Ishikawa
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Patent number: 6642541Abstract: On a transparent electrically insulating substrate, formed are a scanning line, and a gate electrode of a switching element, further formed are a gate insulating film, a semiconductor layer, an n+-Si layer to be formed into a source electrode and a drain electrode. After the patterning of the foregoing structure, the dielectric film is formed, and the portion corresponding to the contact hole is removed by etching, and photosensitive resin is applied to form the interlayer insulating film. Then, the transparent electrode is extended from the pixel electrode over the switching element, whereon a conversion layer and a gold layer for use in electrode are vapor-deposited. In this structure, an increase in capacitor between the pixel electrode and the signal line can be suppressed by the interlayer insulating film, and the transparent electrode functions as a top gate and release excessive electric charge.Type: GrantFiled: March 2, 2001Date of Patent: November 4, 2003Assignee: Sharp KabushikikaishaInventors: Hisashi Nagata, Yoshihiro Izumi
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Patent number: 6638782Abstract: A TFT array is formed on a glass substrate (step P1) A surface protection layer is formed on the glass substrate so as to cover the TFT a-ray (step P2). The glass substrate is divided to form active matrix substrates with the surface protection layer being provided (step P3). The divided active matrix substrate is chamfered along its edges (step P4). The surface protection layer is removed from the active matrix substrate (step P5). An X-ray conductive layer is formed on the TFT array where the surface protection layer has been removed (step P6). By these steps, pollutants produced during the division and chamfering of the glass substrate are prevented from polluting the TFT array and the X-ray conductive layer, and the active element array and the semiconductor layer is prevented from deteriorating in terms of performance in manufacturing process for a two-dimensional image detector.Type: GrantFiled: December 27, 2002Date of Patent: October 28, 2003Assignee: Sharp Kabushiki KaishaInventors: Yoshihiro Izumi, Osamu Teranuma, Toshinori Yoshimuta, Shinya Hirasawa
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Patent number: 6627544Abstract: A SnO2 film having a prescribed pattern feature is formed on a substrate by a wet film-formation technology (e.g., sol-gel method). A Ni film is formed on the SnO2 film by an electroless plating method. The electroless plating method is conducted in the presence of at least one sulfur-containing compound selected from the group consisting of thiosulfates, thiocyanates and sulfur-containing organic compounds.Type: GrantFiled: May 22, 2002Date of Patent: September 30, 2003Assignees: Sharp Kabushiki Kaisha, Meltex Inc., Sumitomo Osaka Cemento Co., Ltd.Inventors: Yoshihiro Izumi, Yoshimasa Chikama, Satoshi Kawashima, Takaharu Hashimoto, Itsuji Yoshikawa, Masaaki Ishikawa
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Publication number: 20030179169Abstract: An electronic appliance includes an array of elements and an addressing substrate. The array of elements includes: first and second surfaces opposed to each other; element regions, arranged in matrix between the first and second surfaces and including electrodes; and a first group of terminal electrodes on the second surface, each of which is electrically connected to associated one of the electrodes. The addressing substrate includes: a substrate having a third surface opposed to the second surface; a second group of terminal electrodes on the third surface, each of which is electrically connected to associated one of the terminal electrodes in the first group; and an addressing driver, which transmits or receives a predetermined signal to/from the element regions via the second group of terminal electrodes while addressing the element regions one after another.Type: ApplicationFiled: March 13, 2003Publication date: September 25, 2003Inventor: Yoshihiro Izumi
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Patent number: 6603106Abstract: The invention provides a two-dimensional image detector having superior uniformity in thickness and composition of a photoconductive layer with respect to the entire substrate, and a method of productively (efficiently) and inexpensively manufacturing such a two-dimensional image detector. The two-dimensional image detector includes at least an active matrix substrate 1 having a plurality of pixel electrodes 10, and a photoconductive layer 2 stacked on the pixel electrodes 10, wherein the photoconductive layer 2 is transferred to the active matrix substrate 1 after being formed in a predetermined thickness on a transfer substrate. That is, a fabrication method of the two-dimensional image detector is the method in which the photoconductive layer 2 is formed in advance in a predetermined thickness on the transfer substrate and then transferred on the active matrix substrate 1. The photoconductive layer 2 includes a mixture of particulate photoconductors and a binder.Type: GrantFiled: January 23, 2001Date of Patent: August 5, 2003Assignee: Sharp Kabushiki KaishaInventors: Osamu Teranuma, Yoshihiro Izumi
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Publication number: 20030137794Abstract: A display device includes a display panel and an ion generator for generating positive ions and negative ions. The display device kills microorganisms or decomposes and removes harmful organic substances (e.g., sources of odor or environmental hormones), which exist either on the screen or in the air surrounding the display device, by utilizing the action of the positive and negative ions.Type: ApplicationFiled: January 23, 2003Publication date: July 24, 2003Inventors: Yoshihiro Izumi, Yasukuni Yamane
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Patent number: 6593577Abstract: An electromagnetic wave detecting device is provided with an active matrix substrate having signal input terminals and signal output terminals in its circumference, a semiconductor film, provided on the active matrix substrate, having electromagnetic wave conductivity, and a bias electrode having a connecting section, to which a bias supply power source is connected, for applying a bias voltage to the semiconductor film, and at least one of the signal input terminals and the signal output terminals are provided offset so as to be on a side which is away from the connecting section of the bias electrode, which makes it possible to prevent an unnecessary electric discharge between the connecting section of the bias electrode and at least one of the signal input terminals and the signal output terminals.Type: GrantFiled: January 3, 2002Date of Patent: July 15, 2003Assignee: Sharp Kabushiki KaishaInventor: Yoshihiro Izumi
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Publication number: 20030102424Abstract: An active-matrix substrate is provided with electrode wires disposed in a lattice form, a plurality of switching elements disposed respectively at intersections of the electrode wires, and connecting terminals for connecting the electrode wires to the outside, the electrode wires include metal electrodes, and at least parts of the connecting terminals have a property of transmitting light. A two-dimensional image detector includes the active-matrix substrate and the amorphous semiconductor layer, which is formed on the active-matrix substrate and has electromagnetic wave conductivity. The connecting terminals are connected with the outside via an anisotropic conductive adhesive having photo-reactivity. A display device includes the active-matrix substrate and an opposing substrate which is disposed so as to oppose the active-matrix substrate via an electro-optical medium, and the connecting terminals are connected to the outside via an anisotropic conductive adhesive having photo-reactivity.Type: ApplicationFiled: October 7, 2002Publication date: June 5, 2003Applicant: Sharp Kabushiki Kaisha.Inventors: Yoshihiro Izumi, Osamu Teranuma
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Publication number: 20030100138Abstract: A TFT array is formed on a glass substrate (step P1) A surface protection layer is formed on the glass substrate so as to cover the TFT a-ray (step P2). The glass substrate is divided to form active matrix substrates with the surface protection layer being provided (step P3). The divided active matrix substrate is chamfered along its edges (step P4). The surface protection layer is removed from the active matrix substrate (step P5). An X-ray conductive layer is formed on the TFT array where the surface protection layer has been removed (step P6). By these steps, pollutants produced during the division and chamfering of the glass substrate are prevented from polluting the TFT array and the X-ray conductive layer, and the active element array and the semiconductor layer is prevented from deteriorating in terms of performance in manufacturing process for a two-dimensional image detector.Type: ApplicationFiled: December 27, 2002Publication date: May 29, 2003Applicant: Sharp Kabushiki KaishaInventors: Yoshihiro Izumi, Osamu Teranuma, Toshinori Yoshimuta, Shinya Hirasawa
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Publication number: 20030096445Abstract: A TFT array is formed on a glass substrate (step P1). A surface protection layer is formed on the glass substrate so as to cover the TFT array (step P2). The glass substrate is divided to form active matrix substrates with the surface protection layer being provided (step P3). The divided active matrix substrate is chamfered along its edges (step P4). The surface protection layer is removed from the active matrix substrate (step P5). An X-ray conductive layer is formed on the TFT array where the surface protection layer has been removed (step P6). By these steps, pollutants produced during the division and chamfering of the glass substrate are prevented from polluting the TFT array and the X-ray conductive layer, and the active element array and the semiconductor layer is prevented from deteriorating in terms of performance in manufacturing process for a two-dimensional image detector.Type: ApplicationFiled: December 27, 2002Publication date: May 22, 2003Applicant: Sharp Kabushiki KaishaInventors: Yoshihiro Izumi, Osamu Teranuma, Toshinori Yoshimuta, Shinya Hirasawa
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Patent number: 6564744Abstract: The present invention provides a plasma CVD method for forming a plasma from a deposition material gas by application of an electric power, and thereby forming a film on a deposition target object in the plasma, wherein the formation of the plasma from the material gas is performed by applying an RF power and a DC power, and the DC power is applied to an electrode carrying the deposition target object. The present invention also provides a plasma CVD apparatus for forming a plasma from a deposition material gas by applying an electric power from the power applying means, and thereby forming a film on a deposition target object by exposing the deposition target object to the plasma, wherein the power applying means includes RF power applying means and DC power applying means, and the DC power applying means applies an electric power to the electrode carrying the deposition target object.Type: GrantFiled: October 18, 2001Date of Patent: May 20, 2003Assignee: Nissin Electric Co., Ltd.Inventors: Takahiro Nakahigashi, Akira Doi, Yoshihiro Izumi, Hajime Kuwahara
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Patent number: 6562659Abstract: When TCP substrates serving as external circuits are packaged by thermocompression bonding onto input/output terminals on an active-matrix substrate including an a-Se film serving as an amorphous semiconductor layer, a cooling operation is performed by a cooling medium discharging nozzle on at least a part between the a-Se film and a thermocompression bonding part disposed between the TCP substrates and the input/output terminals on the active-matrix substrate. Thus, during the thermocompression bonding, a temperature of the a-Se film is maintained below its crystallizing temperature so as to prevent exfoliation of the amorphous semiconductor film and deterioration in characteristics thereof, upon packaging the external circuits by thermocompression bonding onto the input/output terminals on the substrate including the amorphous semiconductor film.Type: GrantFiled: June 2, 2000Date of Patent: May 13, 2003Assignees: Sharp Kabushiki Kaisha, Shimadzu CorporationInventors: Yoshihiro Izumi, Osamu Teranuma
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Patent number: 6559451Abstract: A TFT array is formed on a glass substrate (step P1). A surface protection layer is formed on the glass substrate so as to cover the TFT array (step P2). The glass substrate is divided to form active matrix substrates with the surface protection layer being provided (step P3). The divided active matrix substrate is chamfered along its edges (step P4). The surface protection layer is removed from the active matrix substrate (step P5). An X-ray conductive layer is formed on the TFT array where the surface protection layer has been removed (step P6). By these steps, pollutants produced during the division and chamfering of the glass substrate are prevented from polluting the TFT array and the X-ray conductive layer, and the active element array and the semiconductor layer is prevented from deteriorating in terms of performance in manufacturing process for a two-dimensional image detector.Type: GrantFiled: September 8, 2000Date of Patent: May 6, 2003Assignees: Sharp Kabushiki Kaisha, Shimadzu CorporationInventors: Yoshihiro Izumi, Osamu Teranuma, Toshinori Yoshimuta, Shinya Hirasawa
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Publication number: 20030038306Abstract: In an active matrix substrate, a glass substrate is provided with TFTs having gate electrodes connected to scanning lines also provided on the glass substrate. The glass substrate is further provided with auxiliary capacitance lines, formed on the same layer as the scanning lines. Further, pixel electrodes connected to drain electrodes of the TFTs are formed on the same layer as signal lines connected to source electrodes of the TFTs. An insulating layer is provided between the layer forming the signal lines and pixel electrodes and the layer forming the drain and source electrodes. Since the insulating film is present between the signal lines and the scanning and auxiliary capacitance lines, influence on the auxiliary capacitance value can be reduced, as can a signal line capacitance value. As a result, even when the auxiliary capacitance value is increased, the signal line capacitance value remains small.Type: ApplicationFiled: August 27, 2002Publication date: February 27, 2003Applicant: Sharp Kabushiki KaishaInventors: Yoshihiro Izumi, Hisashi Nagata, Yuichi Saito