Patents by Inventor Koichi Itsuda
Koichi Itsuda 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: 6646624Abstract: An AC plasma display device includes a pair of spaced apart first and second plates. The first plate bears electrodes each extending in a first direction, and the second plate bears paired first and second electrodes each extending in another direction perpendicular to the first direction. The paired first and second electrodes are divided into several groups. Further, the device includes first connecting lines connected to each other, each of which is associated with the first electrodes in one of the groups. Also provided are second connecting lines connected to each other, each of which is associated with the second electrodes in one of the groups. In addition, the device includes first pulse generators, each of which is associated with one of the first connecting lines and second pulse generators, each of which is associated with one of the second connecting lines.Type: GrantFiled: July 28, 1999Date of Patent: November 11, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Tadayuki Masumori, Yukiharu Ito, Koichi Itsuda
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Patent number: 6150766Abstract: A plurality of scanning electrodes and a plurality of sustaining electrodes parallel to each other are located on an inner face of a first glass substrate. Each of the scanning electrodes and each of the sustaining electrodes form a pair. A dielectric layer and a protection layer are formed on the first glass substrate in this order, covering the electrodes. A plurality of data electrodes perpendicular to the scanning electrodes and the sustaining electrodes are located on an inner face of a second glass substrate which is located opposed to the first glass substrate with a discharge space interposed therebetween. In an AC-type PDP having such a structure, at least one of the plurality of scanning electrodes and the plurality of sustaining electrodes are divided into a plurality of groups, and pulses having different phases are applied to the electrodes in different groups, thereby causing sustaining discharge. The scanning electrodes and the sustaining electrodes may be comb-like with teeth.Type: GrantFiled: November 7, 1996Date of Patent: November 21, 2000Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Taichi Shino, Takio Okamoto, Kazunori Hirao, Koichi Itsuda, Yukiharu Ito, Takao Wakitani, Toru Hirayama
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Patent number: 6118220Abstract: A plurality of scanning electrodes and a plurality of sustaining electrodes parallel to each other are located on an inner face of a first glass substrate. Each of the scanning electrodes and each of the sustaining electrodes form a pair. A dielectric layer and a protection layer are formed on the first glass substrate in this order, covering the electrodes. A plurality of data electrodes perpendicular to the scanning electrodes and the sustaining electrodes are located on an inner face of a second glass substrate which is located opposed to the first glass substrate with a discharge space interposed therebetween. In an AC-type PDP having such a structure, at least one of the plurality of scanning electrodes and the plurality of sustaining electrodes are divided into a plurality of groups, and pulses having different phases are applied to the electrodes in different groups, thereby causing sustaining discharge. The scanning electrodes and the sustaining electrodes may be comb-like with teeth.Type: GrantFiled: July 14, 1999Date of Patent: September 12, 2000Assignee: Matsushita Electronics CorporationInventors: Taichi Shino, Takio Okamoto, Kazunori Hirao, Koichi Itsuda, Yukiharu Ito, Takao Wakitani, Toru Hirayama
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Patent number: 6072279Abstract: A plurality of scanning electrodes and a plurality of sustaining electrodes parallel to each other are located on an inner face of a first glass substrate. Each of the scanning electrodes and each of the sustaining electrodes form a pair. A dielectric layer and a protection layer are formed on the first glass substrate in this order, covering the electrodes. A plurality of data electrodes perpendicular to the scanning electrodes and the sustaining electrodes are located on an inner face of a second glass substrate which is located opposed to the first glass substrate with a discharge space interposed therebetween. In an AC-type PDP having such a structure, at least one of the plurality of scanning electrodes and the plurality of sustaining electrodes are divided into a plurality of groups, and pulses having different phases are applied to the electrodes in different groups, thereby causing sustaining discharge. The scanning electrodes and the sustaining electrodes may be comb-like with teeth.Type: GrantFiled: March 29, 1999Date of Patent: June 6, 2000Assignee: Matsushita Electronics CorporationInventors: Taichi Shino, Takio Okamoto, Kazunori Hirao, Koichi Itsuda, Yukiharu Ito, Takao Wakitani, Toru Hirayama
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Patent number: 5969478Abstract: A plurality of scanning electrodes and a plurality of sustaining electrodes parallel to each other are located on an inner face of a first glass substrate. Each of the scanning electrodes and each of the sustaining electrodes form a pair. A dielectric layer and a protection layer are formed on the first glass substrate in this order, covering the electrodes. A plurality of data electrodes perpendicular to the scanning electrodes and the sustaining electrodes are located on an inner face of a second glass substrate which is located opposed to the first glass substrate with a discharge space interposed therebetween. In an AC-type PDP having such a structure, at least one of the plurality of scanning electrodes and the plurality of sustaining electrodes are divided into a plurality of groups, and pulses having different phases are applied to the electrodes in different groups, thereby causing sustaining discharge. The scanning electrodes and the sustaining electrodes may be comb-like with teeth.Type: GrantFiled: July 1, 1998Date of Patent: October 19, 1999Assignee: Matsushita Electronics CorporationInventors: Taichi Shino, Takio Okamoto, Kazunori Hirao, Koichi Itsuda, Yukiharu Ito, Takao Wakitani, Toru Hirayama
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Patent number: 5656893Abstract: A plurality of scanning electrodes and a plurality of sustaining electrodes parallel to each other are located on an inner face of a first glass substrate. Each of the scanning electrodes and each of the sustaining electrodes form a pair. A dielectric layer and a protection layer are formed on the first glass substrate in this order, covering the electrodes. A plurality of data electrodes perpendicular to the scanning electrodes and the sustaining electrodes are located on an inner face of a second glass substrate which is located opposed to the first glass substrate with a discharge space interposed therebetween. In an AC-type PDP having such a structure, at least one of the plurality of scanning electrodes and the plurality of sustaining electrodes are divided into a plurality of groups, and pulses having different phases are applied to the electrodes in different groups, thereby causing sustaining discharge. The scanning electrodes and the sustaining electrodes may be comb-like with teeth.Type: GrantFiled: April 25, 1995Date of Patent: August 12, 1997Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Taichi Shino, Takio Okamoto, Kazunori Hirao, Koichi Itsuda, Yukiharu Ito, Takao Wakitani, Toru Hirayama