Patents by Inventor Noriyuki Awaji
Noriyuki Awaji 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: 6344713Abstract: The present invention relates to a plasma display panel comprising transparent electrodes and a dielectric layer covering said transparent electrodes on at least one substrate of a pair of substrates facing each other with a discharge space therebetween, the main constituent of the transparent electrodes is included in the dielectric layer. Further, the main constituent of the transparent electrode is indium oxide and indium oxide is included in the dielectric layer. By including the main constituent of the transparent electrodes in the dielectric layer, it is believed that the drop in conductivity caused by diffusion of the dielectric substance in the transparent electrodes during high-temperature processing is prevented.Type: GrantFiled: July 14, 1997Date of Patent: February 5, 2002Assignee: Fujitsu LimitedInventors: Noriyuki Awaji, Keiichi Betsui, Shinji Tadaki
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Patent number: 6337538Abstract: Local losses of material of transparent electrodes, in a plasma display panel including transparent electrodes, bus electrodes and, a dielectric layer covering these electrodes, are prevented by using a plasma display panel according to the present invention. The plasma display panel is formed on at least one substrate of a pair of substrates provided opposite each other via a discharge space. An element, which is a main element of the bus electrode composition, is included in the composition of the dielectric layer. Since the main element of the bus electrode is included in the dielectric layer, local losses of the transparent electrode can be prevented even through the high temperature baking process of the dielectric layer. A preferred choice as the main element of the bus electrode composition is copper, but other elements are also suitable and will perform acceptably.Type: GrantFiled: January 26, 1999Date of Patent: January 8, 2002Assignee: Fujitsu LimitedInventors: Noriyuki Awaji, Shinji Tadaki, Keiichi Betsui
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Publication number: 20020000774Abstract: Local losses of material of transparent electrodes, in a plasma display panel including transparent electrodes, bus electrodes and, a dielectric layer covering these electrodes, are prevented by using a plasma display panel according to the present invention. The plasma display panel is formed on at least one substrate of a pair of substrates provided opposite each other via a discharge space. An element, which is a main element of the bus electrode composition, is included in the composition of the dielectric layer. Since the main element of the bus electrode is included in the dielectric layer, local losses of the transparent electrode can be prevented even through the high temperature baking process of the dielectric layer. A preferred choice as the main element of the bus electrode composition is copper, but other elements are also suitable and will perform acceptably.Type: ApplicationFiled: January 26, 1999Publication date: January 3, 2002Inventors: NORIYUKI AWAJI, SHINJI TADAKI, KEIICHI BETSUI
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Publication number: 20010054871Abstract: A plasma display panel includes a dielectric layer in which a filler for enhancing reflectance is dispersed. To increase luminescence efficiency, the filler consists of flakes oriented in parallel to the surface of the dielectric layer.Type: ApplicationFiled: March 28, 2001Publication date: December 27, 2001Inventors: Shinji Tadaki, Noriyuki Awaji, Fumihiro Namiki, Katsuya Irie, Hideki Harada, Tadayoshi Kosaka
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Publication number: 20010040433Abstract: Local losses of material of transparent electrodes, in a plasma display panel including transparent electrodes, bus electrodes and, a dielectric layer covering these electrodes, are prevented by using a plasma display panel according to the present invention. The plasma display panel is formed on at least one substrate of a pair of substrates provided opposite each other via a discharge space. An element, which is a main element of the bus electrode composition, is included in the composition of the dielectric layer. Since the main element of the bus electrode is included in the dielectric layer, local losses of the transparent electrode can be prevented even through the high temperature baking process of the dielectric layer. A preferred choice as the main element of the bus electrode composition is copper, but other elements are also suitable and will perform acceptably.Type: ApplicationFiled: July 25, 2001Publication date: November 15, 2001Applicant: FUJITSU LIMITEDInventors: Noriyuki Awaji, Shinji Tadaki, Keiichi Betsui
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Patent number: 6297590Abstract: A surface discharge type plasma display panel(PDP) includes a pair of front and rear substrates (11, 21) with a discharge space (30) therebetween and a plurality of pair display electrodes on internal surface of either the front or rear substrate. The display electrodes are extending along each display line L. The PDP further includes a light shielding film (45), having a belt shape extending along the display line direction, formed on either internal or outer surface of the front substrate (11) to overlap each area S2 between the adjacent display lines L and sandwiched between the display electrodes X and Y.Type: GrantFiled: May 12, 2000Date of Patent: October 2, 2001Assignee: Fujitsu LimitedInventors: Toshiyuki Nanto, Hiroyuki Nakahara, Noriyuki Awaji, Masayuki Wakitani, Tsutae Shinoda, Keiichiro Konno, Yasuo Yanagibashi, Naohito Sakamoto
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Patent number: 6296539Abstract: The present invention relates to a plasma display panel comprising transparent electrodes and a dielectric layer covering said transparent electrodes on at least one substrate of a pair of substrates facing each other with a discharge space therebetween, the main constituent of the transparent electrodes is included in the dielectric layer. Further, the main constituent of the transparent electrode is indium oxide and indium oxide is included in the dielectric layer. By including the main constituent of the transparent electrodes in the dielectric layer, it is believed that the drop in conductivity caused by diffusion of the dielectric substance in the transparent electrodes during high-temperature processing is prevented.Type: GrantFiled: January 24, 2000Date of Patent: October 2, 2001Assignee: Fujitsu LimitedInventors: Noriyuki Awaji, Keiichi Betsui, Shinji Tadaki
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Patent number: 6242859Abstract: In the present invention, the process of forming the dielectric layer is carried out by laminating a dielectric thin film sheet on a substrate. Alternatively, it is carried out by sealing together a dielectric thin film sheet and the rear-side substrate whilst leaving a discharge gap therebetween. In particular, by using a dielectric thin film sheet to constitute the dielectric layer formed onto the display-side substrate, which must be transparent, the conventional processes of printing and anneling become unnecessary. For this dielectric thin film sheet, a micro-sheet comprising borosilicate glass or soda-lime glass as a principal component is used. This micro-sheet may have a thickness of 5 &mgr;m or less, and it is suitable as a dielectric layer for a plasma display panel.Type: GrantFiled: April 1, 1998Date of Patent: June 5, 2001Assignee: Fujitsu LimitedInventors: Keiichi Betsui, Akira Nakazawa, Shigeo Kasahara, Shinya Fukuta, Noriyuki Awaji
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Patent number: 6242860Abstract: A plasma display panel has a first substrate, a plurality of address electrodes disposed on the first substrate, a first dielectric layer disposed on the first substrate in covering relation to the address electrodes, a second substrate, a plurality of scan electrodes disposed on the second substrate in a direction transverse to the address electrodes, a second dielectric layer disposed on the second substrate in covering relation to the scan electrodes. The first substrate and the second substrate are disposed in confronting relation to each other with discharge spaces defined therebetween. The first dielectric layer contains electrically conductive particles mixed therewith. The electrically conductive particles make the first dielectric layer electrically conductive in its transverse direction to allow charges stored on the first dielectric layer to leak to the address electrodes for thereby reducing the frequency of random discharges.Type: GrantFiled: March 6, 1997Date of Patent: June 5, 2001Assignee: Fujitsu LimitedInventors: Hiromichi Sasao, Hiroyuki Nakahara, Toshiyuki Nanto, Akira Otsuka, Noriyuki Awaji, Keiichi Betsui, Shinji Tadaki
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Patent number: 6200182Abstract: A surface discharge type plasma display panel (PDP) includes a pair of front and rear substrates (11, 21) with a discharge space (30) therebetween and a plurality of pair display electrodes on internal surface of either the front or rear substrate. The display electrodes are extending along each display line L. The PDP further includes a light shielding film (45), having a belt shape extending along the display line direction, formed on either internal or outer surface of the front substrate (11) to overlap each area S2 between the adjacent display lines L and sandwiched between the display electrodes X and Y.Type: GrantFiled: April 13, 1999Date of Patent: March 13, 2001Assignee: Fujitsu LimitedInventors: Toshiyuki Nanto, Hiroyuki Nakahara, Noriyuki Awaji, Masayuki Wakitani, Tsutae Shinoda, Yasuo Yanagibashi, Naohito Sakamoto
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Patent number: 6195070Abstract: A full color three electrode surface discharge type plasma display device that has fine image elements and is large and has a bright display. The three primary color luminescent areas are arranged in the extending direction of the display electrode pairs in a successive manner and an image element is composed by the three unit luminescent areas defined by these three luminescent areas and address electrodes intersecting these three luminescent areas. Further, phosphors are coated not only on a substrate but also on the side walls of the barriers and on address electrodes. The manufacturing processes and operation methods of the above constructions are also disclosed.Type: GrantFiled: February 13, 1997Date of Patent: February 27, 2001Assignee: Fujitsu LimitedInventors: Tsutae Shinoda, Noriyuki Awaji, Shinji Kanagu, Tatsutoshi Kanae, Masayuki Wakitani, Toshiyuki Nanto, Mamaru Miyahara
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Patent number: 6159066Abstract: It is an object of the present invention to prevent deterioration of a transparent electrically-conductive film which forms display electrodes, so as to enhance the reliability of display electrodes. In an AC type plasma display panel including a plurality of display electrodes X & Y formed of a transparent electrically-conductive film or a multiple layer of a transparent electrically-conductive film plus a metal film a width of which is narrower therethan, and a dielectric layer to cover the display electrodes from the discharge space, the dielectric layer is formed by the use of a ZnO-containing glass material containing substantially none of lead. Moreover, the display electrodes are protected by coating the dielectric layer so far as the ends of display electrodes; and the coating is removed afterwards by etching, etc.Type: GrantFiled: April 9, 1999Date of Patent: December 12, 2000Assignee: Fujitsu LimitedInventors: Masashi Amatsu, Shinji Kanagu, Masaaki Sasaka, Noriyuki Awaji, Kazumi Ebihara
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Patent number: 6097357Abstract: A matrix display panel of first and second substrates having respective main surfaces in parallel and opposed relationship has parallel address electrodes and respective continuous phosphor stripes arranged within corresponding elongated cavities on the main surface of the first substrate, extending in a first direction. Display electrodes on the main surface of the second substrate extend in a second, transverse direction and cross the address electrodes and respective phosphor stripes, each display electrode defining a display line of pixels.Type: GrantFiled: July 3, 1997Date of Patent: August 1, 2000Assignee: Fujitsu LimitedInventors: Tsutae Shinoda, Noriyuki Awaji, Shinji Kanagu, Tatsutoshi Kanae, Masayuki Wakitani, Toshiyuki Nanto, Mamaru Miyahara
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Patent number: 5952782Abstract: A surface discharge type plasma display panel(PDP) includes a pair of front and rear substrates (11, 21) with a discharge space (30) therebetween and a plurality of pair display electrodes on internal surface of either the front or rear substrate. The display electrodes are extending along each display line L. The PDP further includes a light shielding film (45), having a belt shape extending along the display line direction, formed on either internal or outer surface of the front substrate (11) to overlap each area S2 between the adjacent display lines L and sandwiched between the display electrodes X and Y.Type: GrantFiled: August 12, 1996Date of Patent: September 14, 1999Assignee: Fujitsu LimitedInventors: Toshiyuki Nanto, Hiroyuki Nakahara, Noriyuki Awaji, Masayuki Wakitani, Tsutae Shinoda, Keiichiro Konno, Yasuo Yanagibashi, Naohito Sakamoto
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Patent number: 5674553Abstract: A full color three electrode surface discharge type plasma display device that has fine image elements and is large and has a bright display. The three primary color luminescent areas are arranged in the extending direction of the display electrode pairs in a successive manner and an image element is composed by the three unit luminescent areas defined by these three luminescent areas and address electrodes intersecting these three luminescent areas. Further, phosphors are coated not only on a substrate but also on the side walls of the barriers and on address electrodes. The manufacturing processes and operation methods of the above constructions are also disclosed.Type: GrantFiled: June 2, 1995Date of Patent: October 7, 1997Assignee: Fujitsu LimitedInventors: Tsutae Shinoda, Noriyuki Awaji, Shinji Kanagu, Tatsutoshi Kanae, Masayuki Wakitani, Toshiyuki Nanto, Mamaru Miyahara
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Patent number: 5661500Abstract: A full color three electrode surface discharge type plasma display device that has fine image elements and is large and has a bright display. The three primary color luminescent areas are arranged in the extending direction of the display electrode pairs in a successive manner and an image element is composed by the three unit luminescent areas defined by these three luminescent areas and address electrodes intersecting these three luminescent areas. Further, phosphors are coated not only on a substrate but also on the side walls of the barriers and on address electrodes. The manufacturing processes and operation methods of the above constructions are also disclosed.Type: GrantFiled: June 6, 1995Date of Patent: August 26, 1997Assignee: Fujitsu LimitedInventors: Tsutae Shinoda, Noriyuki Awaji, Shinji Kanagu, Tatsutoshi Kanae, Masayuki Wakitani, Toshiyuki Nanto, Mamaru Miyahara