Patents by Inventor Toshihiro Yoshioka
Toshihiro Yoshioka 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: 20080030137Abstract: A PDP comprises: front and back glass substrates facing each other across a discharge space; a plurality of row electrode pairs and column electrodes disposed between the front and back glass substrates and extending in directions at right angles to each other to form discharge cells in positions corresponding to the intersections in the discharge space; and an electride compound in which electrons are substituted for part of anions in the crystal lattice and which is disposed in an area facing the discharge cells and exposed to each discharge cell.Type: ApplicationFiled: June 22, 2007Publication date: February 7, 2008Inventors: Toshihiro Yoshioka, Takayoshi Hirakawa
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Publication number: 20060209000Abstract: A Liquid Crystal Display (LCD), a backlight used for the LCD and a method for producing the LCD and the backlight are provided which are capable of inhibiting an increase in component counts and in assembling processes and of reducing them, thereby achieving low costs. A display image is obtained by arranging a backlight section being able to perform scanning as a single unit in a manner that it positionally matches a liquid crystal displaying section. The backlight section is provided with a plurality of scanning electrodes and light emitting layers each providing a different luminescent color, and being spatially separated from each other on a principal face of the backlight and scanning is performed on a plurality of light emitting layers providing a different luminescent color.Type: ApplicationFiled: November 14, 2005Publication date: September 21, 2006Inventors: Ken Sumiyoshi, Toshihiro Yoshioka, Hiroshi Hayama, Jin Matsushima
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Publication number: 20050212428Abstract: The front substrate of the PDP includes a scanning electrode and a sustain electrode, a dielectric layer (not shown) that covers these electrodes, and a protective layer (not shown) that protects the dielectric layer from discharge. The scanning electrode and the sustain electrode each includes a floating-state transparent electrode of a transparent conductive material divided into several pieces, a branch electrode capacitively coupled with these transparent electrode pieces, and a bus electrode directly connected to the branch electrode, so that a pair of gas discharge electrodes is formed to be opposite to each other via a surface discharge gap. The transparent electrode includes four electrode pieces of the same dimensions, and the branch electrodes are separated from the discharge gas space by barrier ribs on the rear substrate. The present invention improves light emission efficiency of a PDP formed by AC-type discharge cells.Type: ApplicationFiled: March 23, 2005Publication date: September 29, 2005Applicant: Pioneer Plasma Display CorporationInventor: Toshihiro Yoshioka
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Patent number: 6940225Abstract: A plasma display panel includes a first substrate, a second substrate, and discharge gas filled in a space defined between the first and second substrates, the first substrate including at least one first electrode extending in a first direction, and at least one second electrode extending in parallel with the first electrode, the second substrate including at least one third electrode extending in a second direction perpendicular to the first direction, and a plurality of partition walls extending in the second direction for partitioning a display area, wherein at least one of the first and second electrodes is comprised of a first portion being in the form of a line extending in the first direction, and defining a discharge gap between itself and an adjacent electrode, and a second portion radially extending from the first portion in a direction away from the discharge gap.Type: GrantFiled: July 24, 2003Date of Patent: September 6, 2005Assignee: Pioneer Plasma Display CorporationInventors: Kota Araki, Akifumi Okigawa, Tadashi Nakamura, Yoshito Tanaka, Toshihiro Yoshioka
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Publication number: 20050093776Abstract: A plasma display device and its driving method are provided which are capable of displaying an excellent image, without an increase in costs caused by an increased number of driving circuits, by shortening a scanning period while writing discharge is made to occur with reliability and by improving contrast. In a plasma display panel (PDP) in the plasma display device, a group of unit cells is formed at intersecting points between each of groups of row electrodes and a group of column electrodes. Each of unit cells is made up of a display cell and auxiliary cell and is surrounded by a horizontal rib and a longitudinal rib. A horizontal communicating aperture is formed in the longitudinal rib to partition among two or more auxiliary cells and a longitudinal communicating aperture is formed in the horizontal rib to partition between the display cell and auxiliary cell both being arranged in the column direction.Type: ApplicationFiled: September 29, 2004Publication date: May 5, 2005Applicant: NEC PLASMA DISPLAY CORPORATIONInventors: Takashi Furutani, Toshihiro Yoshioka
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Publication number: 20050088369Abstract: A plasma display panel and its driving method are provided, which is capable of improving high speed performance and reducing the necessary voltage for a selective discharge for switching a discharge cell and preferably of suppressing a brightness in a black display and making it easy to modulate the minimum brightness for improving the quality of image.Type: ApplicationFiled: October 3, 2002Publication date: April 28, 2005Inventor: Toshihiro Yoshioka
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Publication number: 20050068267Abstract: A PDP (plasma display panel) and a plasma display device are provided which are capable of improving a light-emitting characteristic and of realizing high image quality by incorporating a discharge electrode using a low-resistance conductive material. In the above PDP, connecting electrode portions each being arranged in the vicinity of a transparent conductive portion of a scanning electrode and a transparent conductive portion of a sustaining electrode, where sustaining discharge is made to occur for displaying of images, have a slender-line shape and their film thickness being comparatively small in order to decrease a light-shielding rate and low-resistance conductive portions each being arranged in a portion being comparatively far from each of transparent conductive portions have their film thickness being comparatively large in order to lower wiring resistance.Type: ApplicationFiled: September 28, 2004Publication date: March 31, 2005Inventors: Toshihiro Yoshioka, Akifumi Okigawa
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Patent number: 6852646Abstract: A method for forming a dielectric film in a PDP includes the steps of: reducing the ambient pressure of an insulating film including a dielectric material before the ambient temperature reaches the reaction temperature of the dielectric material; introducing heated gas to increase the ambient pressure up to the atmospheric pressure while maintaining the ambient temperature at the reaction temperature; and lowering the ambient temperature down to the solidifying temperature of the insulating film while maintaining the atmospheric ambient pressure.Type: GrantFiled: July 9, 2002Date of Patent: February 8, 2005Assignee: NEC CorporationInventors: Toshihiro Yoshioka, Akira Miyakoshi
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Publication number: 20050023978Abstract: A plasma display panel having a plurality of surface discharge electrode pairs formed in a column direction at predetermined intervals, each surface discharge electrode pair having a pair of sustaining electrodes extending in a row direction so that a discharge gap is put between the sustaining electrodes. Each sustaining electrode is made up of a transparent conductive thin film, is provided with a main electrode portion formed in stripe shapes so as to face the discharge gap and a metal film of which a width is narrower than a width of the main electrode portion, and a sub-electrode portion formed at a side opposite to the discharge gap side of the main electrode portion which corresponds. With this configuration, a high image quality and a low power consumption can be obtained.Type: ApplicationFiled: August 31, 2004Publication date: February 3, 2005Applicant: NEC CORPORATIONInventors: Akifumi Okigawa, Toshihiro Yoshioka
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Patent number: 6784615Abstract: A plasma display panel having a plurality of surface discharge electrode pairs formed in a column direction at predetermined intervals, each surface discharge electrode pair having a pair of sustaining electrodes extending in a row direction so that a discharge gap is put between the sustaining electrodes. Each sustaining electrode is made up of a transparent conductive thin film, is provided with a main electrode portion formed in stripe shapes so as to face the discharge gap and a metal film of which a width is narrower than a width of the main electrode portion, and a sub-electrode portion formed at a side opposite to the discharge gap side of the main electrode portion which corresponds. With this configuration, a high image quality and a low power consumption can be obtained.Type: GrantFiled: June 25, 2002Date of Patent: August 31, 2004Assignee: NEC CorporationInventors: Akifumi Okigawa, Toshihiro Yoshioka
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Patent number: 6734626Abstract: In order to improve the light emitting efficiency of a surface-discharge type color PDP, a sustaining electrode is divided into a plurality of electrodes formed in respective different layers. Lower electrodes 121 and upper electrodes 122 in different layers are formed as electrode pairs, an upper dielectric layer 14 is formed on the upper electrodes 122 in an upper layer to make a dielectric layer on the surface-discharge electrode pair thin to thereby maintain the discharge sustaining voltage low and obtain high light emitting efficiency.Type: GrantFiled: July 24, 2001Date of Patent: May 11, 2004Assignee: NEC CorporationInventors: Toshihiro Yoshioka, Akira Miyakoshi
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Publication number: 20040070340Abstract: A plasma display panel includes a first substrate, a second substrate, and discharge gas filled in a space defined between the first and second substrates, the first substrate including at least one first electrode extending in a first direction, and at least one second electrode extending in parallel with the first electrode, the second substrate including at least one third electrode extending in a second direction perpendicular to the first direction, and a plurality of partition walls extending in the second direction for partitioning a display area, wherein at least one of the first and second electrodes is comprised of a first portion being in the form of a line extending in the first direction, and defining a discharge gap between itself and an adjacent electrode, and a second portion radially extending from the first portion in a direction away from the discharge gap.Type: ApplicationFiled: July 24, 2003Publication date: April 15, 2004Inventors: Kota Araki, Akifumi Okigawa, Tadashi Nakamura, Yoshito Tanaka, Toshihiro Yoshioka
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Patent number: 6614182Abstract: A plasma display panel (PDP), in which a high quality image is displayed by making its luminance and its luminance efficacy high and also its power consumption is reduced, is provided. The plasma display panel provides a group of plural pairs of sustaining electrodes covered with a dielectric layer on a first glass substrate by placing a discharge gap between the pair of sustaining electrodes, and a gas being filled up between the first glass substrate and a second glass substrate facing the first glass substrate. And an image is displayed on the PDP by irradiating ultraviolet light, which is obtained by making the group of plural pairs of the sustaining electrodes on the first glass substrate discharge by applying voltages to the group of plural pairs of the sustaining electrodes, on a fluorescent material.Type: GrantFiled: December 20, 2001Date of Patent: September 2, 2003Assignee: NEC CorporationInventors: Toshihiro Yoshioka, Akifumi Okigawa
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Patent number: 6600269Abstract: In a plasma display panel, data electrodes are formed parallel to each other on a first substrate, and a selection voltage is to be applied to them. A dielectric layer covers a surface of the first substrate to include the data electrodes. Linear partitions are formed at a predetermined interval on the first substrate to be parallel to the data electrodes. A second substrate opposes the first substrate. A closed space between the first and second substrates is filled with a gas. Intersections of a pair of sustain discharge electrodes and data electrodes form matrix-like discharge cells. Stepped partitions are formed at a predetermined interval on the first substrate in a direction intersecting the linear partitions.Type: GrantFiled: August 2, 2001Date of Patent: July 29, 2003Assignee: NEC CorporationInventors: Toshihiro Yoshioka, Takashi Furutani
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Publication number: 20030122771Abstract: A Liquid Crystal Display (LCD), a backlight used for the LCD and a method for producing the LCD and the backlight are provided which are capable of inhibiting an increase in component counts and in assembling processes and of reducing them, thereby achieving low costs. A display image is obtained by arranging a backlight section being able to perform scanning as a single unit in a manner that it positionally matches a liquid crystal displaying section. The backlight section is provided with a plurality of scanning electrodes and light emitting layers each providing a different luminescent color, and being spatially separated from each other on a principal face of the backlight and scanning is performed on a plurality of light emitting layers providing a different luminescent color.Type: ApplicationFiled: October 23, 2002Publication date: July 3, 2003Applicant: NEC CorporationInventors: Ken Sumiyoshi, Toshihiro Yoshioka, Hiroshi Hayama, Jin Matsushima
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Patent number: 6518884Abstract: An electric resonance element includes an electric resonator comprising a coil wound around magnetic materials and a capacitor. The electric resonance element is housed in a vessel made of non-magnetic materials. A detection apparatus for detecting the electric resonance element comprises a transmitter for transmitting an electromagnetic wave and a receiver for detecting the echo wave transmitted from the electric resonance element. A moving vehicle is controlled using a system which comprises the electric resonance element buried in a road, and the detection apparatus installed on a vehicle for detecting echo waves transmitted from electric resonance elements. The detection apparatus comprises a transmitter for transmitting an electromagnetic wave specific to the electric resonance element, a receiver that detects the echo wave, and a element or a circuit to suspend the operation of the receiver while the transmitter is on duty.Type: GrantFiled: March 29, 1999Date of Patent: February 11, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoshihiko Tanji, Keiji Yasui, Toshihiro Yoshioka
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Publication number: 20030013244Abstract: A method for forming a dielectric film in a PDP includes the steps of: reducing the ambient pressure of an insulating film including a dielectric material before the ambient temperature reaches the reaction temperature of the dielectric material; introducing heated gas to increase the ambient pressure up to the atmospheric pressure while maintaining the ambient temperature at the reaction temperature; and lowering the ambient temperature down to the solidifying temperature of the insulating film while maintaining the atmospheric ambient pressure.Type: ApplicationFiled: July 9, 2002Publication date: January 16, 2003Applicant: NEC CORPORATIONInventors: Toshihiro Yoshioka, Akira Miyakoshi
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Publication number: 20020195939Abstract: A plasma display panel having a plurality of surface discharge electrode pairs formed in a column direction at predetermined intervals, each surface discharge electrode pair having a pair of sustaining electrodes extending in a row direction so that a discharge gap is put between the sustaining electrodes. Each sustaining electrode is made up of a transparent conductive thin film, is provided with a main electrode portion formed in stripe shapes so as to face the discharge gap and a metal film of which a width is narrower than a width of the main electrode portion, and a sub-electrode portion formed at a side opposite to the discharge gap side of the main electrode portion which corresponds. With this configuration, a high image quality and a low power consumption can be obtained.Type: ApplicationFiled: June 25, 2002Publication date: December 26, 2002Applicant: NEC CORPORATIONInventors: Akifumi Okigawa, Toshihiro Yoshioka
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Publication number: 20020084752Abstract: A plasma display panel (PDP), in which a high quality image is displayed by making its luminance and its luminance efficacy high and also its power consumption is reduced, is provided. The plasma display panel provides a group of plural pairs of sustaining electrodes covered with a dielectric layer on a first glass substrate by placing a discharge gap between the pair of sustaining electrodes, and a gas being filled up between the first glass substrate and a second glass substrate facing the first glass substrate. And an image is displayed on the PDP by irradiating ultraviolet light, which is obtained by making the group of plural pairs of the sustaining electrodes on the first glass substrate discharge by applying voltages to the group of plural pairs of the sustaining electrodes, on a fluorescent material.Type: ApplicationFiled: December 20, 2001Publication date: July 4, 2002Applicant: NEC CorporationInventors: Toshihiro Yoshioka, Akifumi Okigawa
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Patent number: 6407676Abstract: A first magnetostrictive member 1a is housed in a storage section 2f of a first frame 2a and a second magnetostrictive member 1b is housed in a storage section 2g of a second frame 2b. They are fixed by an adhesive, etc., so as to sandwich a belt-like magnetic member 3 between the frames 2a and 2b. A sealing plate 4a, 4b is fixed to the opposite side of the frame 2a, 2b, forming a magnetostrictive resonator 5. When an electromagnetic wave is applied from the long side direction of the magnetostrictive member 1a, 1b, a magnetic field is applied to the magnetostrictive members 1a and 1b. When the frequency matches the resonance frequency of the magnetostrictive member, the magnetostrictive resonator 5 vibrates with the maximum amplitude. An electromagnetic wave emitted from the magnetostrictive member 1a or 1b can be detected based on mechanical vibration continuing for a short time still after the magnetic field is stopped.Type: GrantFiled: August 27, 1998Date of Patent: June 18, 2002Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoshihiko Tanji, Toshihiro Yoshioka, Joji Kamata