Patents by Inventor Yoshiki Sasaki
Yoshiki Sasaki 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: 7758396Abstract: A plasma display panel including a gas adsorption member is disclosed. An effort of gas adsorption is obtained sufficiently, and the presence of the gas adsorption member avoids problems at an exhausting operation in exhaust-baking step. The plasma display panel includes a pair of plates opposed to each other with an enclosed discharge space in between. The pair of plates refer to a front plate and a back plate, and at least one of the plates has a communication hole, around which the gas adsorption member having a hole is disposed.Type: GrantFiled: May 21, 2008Date of Patent: July 20, 2010Assignee: Panasonic CorporationInventors: Masafumi Okawa, Hiroyuki Kado, Yoshiki Sasaki, Masaki Nishinaka, Kazuya Hasegawa
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Patent number: 7504773Abstract: A plasma display panel including a gas adsorption member is disclosed. An effort of gas adsorption is obtained sufficiently, and the presence of the gas adsorption member avoids problems at an exhausting operation in exhaust-baking step. The plasma display panel includes a pair of plates opposed to each other with an enclosed discharge space in between. The pair of plates refer to a front plate and a back plate, and at least one of the plates has a communication hole, around which the gas adsorption member having a hole is disposed.Type: GrantFiled: May 14, 2004Date of Patent: March 17, 2009Assignee: Panasonic CorporationInventors: Masafumi Okawa, Hiroyuki Kado, Yoshiki Sasaki, Masaki Nishinaka, Kazuya Hasegawa
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Publication number: 20080233828Abstract: A plasma display panel including a gas adsorption member is disclosed. An effort of gas adsorption is obtained sufficiently, and the presence of the gas adsorption member avoids problems at an exhausting operation in exhaust-baking step. The plasma display panel includes a pair of plates opposed to each other with an enclosed discharge space in between. The pair of plates refer to a front plate and a back plate, and at least one of the plates has a communication hole, around which the gas adsorption member having a hole is disposed.Type: ApplicationFiled: May 21, 2008Publication date: September 25, 2008Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Masafumi Okawa, Hiroyuki Kado, Yoshiki Sasaki, Masaki Nishinaka, Kazuya Hasegawa
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Patent number: 7304431Abstract: A highly reliable plasma display panel which suppresses degradation of phosphor characteristic by removing impurity gases inside the plasma display panel. A front board includes scanning electrodes and maintenance electrodes. A and rear board includes data electrodes; partitions disposed in parallel and an exhaust hole. The scanning electrodes and maintenance electrodes of the front board and the data electrode of rear board cross. A non-evaporating getter such as zeolite is disposed inside plasma display panel near the exhaust hole.Type: GrantFiled: May 14, 2004Date of Patent: December 4, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kazuya Hasegawa, Hiroyuki Kado, Yoshiki Sasaki, Masaki Nishinaka, Masafumi Okawa
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Patent number: 7125306Abstract: A method of producing a gas discharge panel includes forming a surrounding unit by positioning a first panel and a second panel together with barrier ribs to partition the space between the panels into cells for light emission when charged with a plasma gas and appropriately addressed. An anti-sealing material inflow rib surrounds the barrier ribs. Sealing material is positioned outside the anti-sealing material inflow rib. The pressure inside the surrounding unit is adjusted to be lower than pressure outside the surrounding unit while applying heat to fuse the sealing material between the first panel and the second panel whereby sealing material is prevented from inflowing into the cells between the barrier ribs during production.Type: GrantFiled: November 23, 2004Date of Patent: October 24, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoshiki Sasaki, Kinzou Nonomura, Junichi Hibino, Hiroyuki Yonehara, Katuyoshi Yamashita, Nobuyuki Kirihara, Kazuo Ootani, Masafumi Ookawa
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Publication number: 20060152156Abstract: A highly reliable plasma display panel which suppresses degradation of phosphor characteristic by removing impurity gases inside the plasma display panel. A front board includes scanning electrodes and maintenance electrodes. A and rear board includes data electrodes; partitions disposed in parallel and an exhaust hole. The scanning electrodes and maintenance electrodes of the front board and the data electrode of rear board cross. A non-evaporating getter such as zeolite is disposed inside plasma display panel near the exhaust hole.Type: ApplicationFiled: May 14, 2004Publication date: July 13, 2006Inventors: Kazuya Hasegawa, Hiroyuki Kado, Yoshiki Sasaki, Masaki Nishinaka, Masafumi Okawa
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Patent number: 7070471Abstract: A manufacturing apparatus for a PDP includes a unit for forming a protective layer protecting a dielectric layer on a first plate, a unit for baking a phosphor layer applied on a second plate, a unit for sealing the first and second plates arranged so that the protective layer faces the phosphor layer, and a unit for baking the first and second plates while exhausting a space between them. The four units are placed in one or more closed chamber. When the apparatus is driven, spaces in and between the closed chambers each contain a gas atmosphere with vapor partial pressure of 10 mPa or lower, or with a pressure of 1 Pa or lower, where the protective layer and the phosphor layer exhibit less water-absorbing property, preventing degradation of the PDP performances. The protective layer does not contact with atmospheric carbonic acid gas, preventing alteration thereof.Type: GrantFiled: March 29, 2001Date of Patent: July 4, 2006Assignee: Matsushita Electric Industrial Co. Ltd.Inventors: Akira Shiokawa, Hiroyosi Tanaka, Yoshiki Sasaki, Masafumi Ookawa, Junichi Hibino
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Publication number: 20060132037Abstract: A plasma display panel including a gas adsorption member is disclosed. An effort of gas adsorption is obtained sufficiently, and the presence of the gas adsorption member avoids problems at an exhausting operation in exhaust-baking step. The plasma display panel includes a pair of plates opposed to each other with an enclosed discharge space in between. The pair of plates refer to a front plate and a back plate, and at least one of the plates has a communication hole, around which the gas adsorption member having a hole is disposed.Type: ApplicationFiled: May 14, 2004Publication date: June 22, 2006Inventors: Masafumi Okawa, Hiroyuki Kado, Yoshiki Sasaki, Masaki Nishinaka, Kazuya Hasegawa
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Patent number: 7023136Abstract: The present invention provides a gas discharge panel on which color images are accurately displayed and which is easy to manufacture. The first and the second substrates face each other across an interval, forming a discharge space in between, which is filled with a discharge gas. Pairs of electrodes for sustaining discharge are provided on at least one of the two substrates, and phosphor layers are formed on the first substrate, arranged along the electrode pairs to form a matrix of discharge cells. An image is displayed by selectively illuminating discharge cells. Gap members having a given shape are provided between the first and second substrates at locations corresponding to the boundaries between discharge cells.Type: GrantFiled: July 16, 2003Date of Patent: April 4, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Junichi Hibino, Yoshiki Sasaki
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Patent number: 7014522Abstract: Barrier ribs 18 formed on a back substrate PA2 are brought into contact with a bonding paste layer 40 having an even surface, applying a bonding agent Bd evenly to the tops of the barrier ribs. Furthermore, a gas discharge panel having a structure in which discharge mainly occurs at locations distanced from parts of the panel connected using the bonding agent Bd is realized.Type: GrantFiled: March 1, 2004Date of Patent: March 21, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Junichi Hibino, Choujurou Yamamitsu, Hiroyuki Yonehara, Yoshiki Sasaki, Katuyoshi Yamashita, Nobuyuki Kirihara, Kazuo Ootani, Yuusuke Takada, Hideaki Yasui, Ryuichi Murai, Hidetaka Hiagshino, Nobuaki Nagao, Masafumi Ookawa, Hiroyosi Tanaka
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Patent number: 6935916Abstract: A manufacturing method for a gas discharge panel according to the invention can reduce the amount of water and gaseous molecules, which are absorbed into the first and the second substrates, to a minimum by keeping the both substrates under a reduced pressure, and therefore can prevent a degradation of a discharge gas filling the finished panel. As a result, problems in the finished panel such as increase in a discharge starting voltage and generation of an abnormal discharge can be suppressed.Type: GrantFiled: July 9, 2003Date of Patent: August 30, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoshiki Sasaki, Junichi Hibino, Hiroyosi Tanaka, Akira Shiokawa, Masafumi Ookawa
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Publication number: 20050151475Abstract: A method is provided to steadily produce a gas discharge panel, such as a PDP, in which a panel and the top of the barrier ribs are in intimate contact in entirety. First a surrounding unit for the gas discharge panel is formed, then a process for sealing the surrounding unit with a sealing material inserted between two panels at the rim is performed while pressure is adjusted so that pressure inside the surrounding unit is lower than pressure outside. With this construction, the panels constituting the surrounding unit are bonded together while they are pressurized from outside. As a result, a panel and the top of the barrier ribs on the other panel are bonded together while they are in intimate contact in entirety. To fully acquire these effects, it is preferable that the adjustment of pressure starts before the sealing material hardens.Type: ApplicationFiled: November 23, 2004Publication date: July 14, 2005Inventors: Yoshiki Sasaki, Kinzou Nonomura, Junichi Hibino, Hiroyuki Yohehara, Katuyoshi Yamashita, Nobuyuki Kirihara, Kazuo Ootani, Masafumi Ookawa
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Patent number: 6913501Abstract: The present invention has as its objective to provide a display panel with silver electrodes without yellowing, and a method of producing such a display panel. After patterning and applying silver paste to form display electrodes on a substrate, glass paste is applied to form the dielectric layer, covering the electrodes, and both layers are simultaneously baked. Glass frit contained in the silver paste is chosen to have a lower softening point than die glass contained in the glass paste, and the baking process is divided into a first step, in which the baking temperature is equal to or higher than the softening point of the glass frit but lower than the softening point of the glass, and a second step, in which the baking temperature is higher than the softening point of the glass. This process allows a display panel to be produced with fewer bakings and reduced yellowing.Type: GrantFiled: April 25, 2003Date of Patent: July 5, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Junichi Hibino, Yoshiki Sasaki, Katsuyosi Yamashita, Masafumi Okawa, Yasuo Takeuchi, Mitsuhiro Otani
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Patent number: 6910938Abstract: A manufacturing method for a gas discharge panel according to the invention can reduce the amount of water and gaseous molecules, which are absorbed into the first and the second substrates, to a minimum by keeping the both substrates under a reduced pressure, and therefore can prevent a degradation of a discharge gas filling the finished panel. As a result, problems in the finished panel such as increase in a discharge starting voltage and generation of an abnormal discharge can be suppressed.Type: GrantFiled: July 9, 2003Date of Patent: June 28, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoshiki Sasaki, Junichi Hibino, Hiroyosi Tanaka, Akira Shiokawa, Masafumi Ookawa
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Patent number: 6860781Abstract: Barrier ribs 18 formed on a back substrate PA2 are brought into contact with a bonding paste layer 40 having an even surface, applying a bonding agent Bd evenly to the tops of the barrier ribs. Furthermore, a gas discharge panel having a structure in which discharge mainly occurs at locations distanced from parts of the panel connected using the bonding agent Bd is realized.Type: GrantFiled: March 1, 2004Date of Patent: March 1, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Junichi Hibino, Choujurou Yamamitsu, Hiroyuki Yonehara, Yoshiki Sasaki, Katuyoshi Yamashita, Nobuyuki Kirihara, Kazuo Ootani, Yuusuke Takada, Hideaki Yasui, Ryuichi Murai, Hidetaka Hiagshino, Nobuaki Nagao, Masafumi Ookawa, Hiroyosi Tanaka
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Patent number: 6848964Abstract: A method is provided to steadily produce a gas discharge panel, such as a PDP, in which a panel and the top of the barrier ribs are in intimate contact in entirety. First a surrounding unit for the gas discharge panel is formed, then a process for sealing the surrounding unit with a sealing material inserted between two panels at the rim is performed while pressure is adjusted so that pressure inside the surrounding unit is lower than pressure outside. With this construction, the panels constituting the surrounding unit are bonded together while they are pressurized from outside. As a result, a panel and the top of the barrier ribs on the other panel are bonded together while they are in intimate contact in entirety. To fully acquire these effects, it is preferable that the adjustment of pressure starts before the sealing material hardens.Type: GrantFiled: September 14, 1999Date of Patent: February 1, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoshiki Sasaki, Kinzou Nonomura, Junichi Hibino, Hiroyuki Yonehara, Katuyoshi Yamashita, Nobuyuki Kirihara, Kazuo Ootani, Masafumi Ookawa
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Patent number: 6820985Abstract: To provide a display panel, such as a PDP, that can reduce noise caused by a collision sound which occurs when a front panel member and a back panel member vibrate while the display panel is being driven. Projections (21) are provided on a surface of a first panel member facing a second panel member. The first panel member and the second panel member are connected to each other by a connecting material in areas (23) where the projections intersect barrier ribs (18). In this way, noise (noise level) caused by a collision sound which occurs when the front panel member and the back panel member vibrate while the display panel is being driven can be reduced.Type: GrantFiled: October 11, 2002Date of Patent: November 23, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masafumi Ookawa, Junichi Hibino, Yoshiki Sasaki, Katuyoshi Yamashita
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Patent number: 6803723Abstract: A plasma display device has a first plate and a second plate which face each other with a discharge space therebetween, and a sealing member which is provided between the first and second plates to seal the discharge space at edges of the first and second plates. A plurality of electrodes are formed on the inner major surface of the first or second plate. An electrode diffusion preventive layer is formed in each area where the plurality of electrodes cross over the sealing member, so as to avoid direct contact between the plurality of electrodes and the sealing member. As a result, problems such as breaking of the electrodes can be avoided. This construction is especially effective when the electrodes contain Ag.Type: GrantFiled: July 30, 2002Date of Patent: October 12, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Katuyoshi Yamashita, Yoshiki Sasaki, Junichi Hibino, Masafumi Ookawa, Masaki Aoki
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Patent number: 6800010Abstract: Barrier ribs 18 formed on a back substrate PA2 are brought into contact with a bonding paste layer 40 having an even surface, applying a bonding agent Bd evenly to the tops of the barrier ribs. Furthermore, a gas discharge panel having a structure in which discharge mainly occurs at locations distanced from parts of the panel connected using the bonding agent Bd is realized.Type: GrantFiled: May 14, 2001Date of Patent: October 5, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Junichi Hibino, Choujurou Yamamitsu, Hiroyuki Yonehara, Yoshiki Sasaki, Katuyoshi Yamashita, Nobuyuki Kirihara, Kazuo Ootani, Yuusuke Takada, Hideaki Yasui, Ryuichi Murai, Hidetaka Hiagshino, Nobuaki Nagao, Masafumi Ookawa, Hiroyosi Tanaka
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Patent number: RE41465Abstract: A plasma display device has a first plate and a second plate which face each other with a discharge space therebetween, and a sealing member which is provided between the first and second plates to seal the discharge space at edges of the first and second plates. A plurality of electrodes are formed on the inner major surface of the first or second plate. An electrode diffusion preventive layer is formed in each area where the plurality of electrodes cross over the sealing member, so as to avoid direct contact between the plurality of electrodes and the sealing member. As a result, problems such as breaking of the electrodes can be avoided. This construction is especially effective when the electrodes contain Ag.Type: GrantFiled: October 10, 2000Date of Patent: August 3, 2010Assignee: Panasonic CorporationInventors: Katsuyoshi Yamashita, Yoshiki Sasaki, Junichi Hibino, Masafumi Ookawa, Masaki Aoki