Patents by Inventor Tetsumasa Okamoto
Tetsumasa Okamoto 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: 7847481Abstract: Ribs for defining pixel cells are formed in the shape of a lattice, and sustain electrodes and scan electrodes are disposed near the ribs. The electrodes are spaced apart in each pixel cell, and the sustain electrode and the scan electrode are each cut away between pixel cells arranged in the row direction to provide each pixel cell with individually separated electrodes. In addition, between pixel cells adjacent to each other in the row direction, the sustain electrodes and the scan electrodes are connected to each other by means of a sustain-side bus electrode and a scan-side bus electrode, respectively. This makes it possible to provide a high luminous efficiency. Furthermore, each pixel cell is provided with a wide distance between the electrodes and thereby with a large effective opening portion. Thus, this provides only a small amount of reduction in intensity when the electrodes are spaced apart between the pixel cells arranged in the row direction in order to increase the luminous efficiency.Type: GrantFiled: October 31, 2007Date of Patent: December 7, 2010Assignee: Panasonic CorporationInventors: Yoshio Sano, Nobumitsu Aibara, Yoshiaki Yanai, Toshiyuki Akiyama, Tetsumasa Okamoto, Kazuaki Yanagida, Hirokazu Tateno, Naoto Hirano, Yoshito Tanaka, Tadashi Nakamura, Keiji Nunomura
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Publication number: 20080084161Abstract: Ribs for defining pixel cells are formed in the shape of a lattice, and sustain electrodes and scan electrodes are disposed near the ribs. The electrodes are spaced apart in each pixel cell, and the sustain electrode and the scan electrode are each cut away between pixel cells arranged in the row direction to provide each pixel cell with individually separated electrodes. In addition, between pixel cells adjacent to each other in the row direction, the sustain electrodes and the scan electrodes are connected to each other by means of a sustain-side bus electrode and a scan-side bus electrode, respectively. This makes it possible to provide a high luminous efficiency. Furthermore, each pixel cell is provided with a wide distance between the electrodes and thereby with a large effective opening portion. Thus, this provides only a small amount of reduction in intensity when the electrodes are spaced apart between the pixel cells arranged in the row direction in order to increase the luminous efficiency.Type: ApplicationFiled: October 31, 2007Publication date: April 10, 2008Applicants: NEC CorporationInventors: Yoshio SANO, Nobumitsu Aibara, Yoshiaki Yanai, Toshiyuki Akiyama, Tetsumasa Okamoto, Kazuaki Yanagida, Hirokazu Tateno, Naoto Hirano, Yoshito Tanaka, Tadashi Nakamura, Keiji Nunomura
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Patent number: 7336033Abstract: Ribs for defining pixel cells are formed in the shape of a lattice, and sustain electrodes and scan electrodes are disposed near the ribs. The electrodes are spaced apart in each pixel cell, and the sustain electrode and the scan electrode are each cut away between pixel cells arranged in the row direction to provide each pixel cell with individually separated electrodes. In addition, between pixel cells adjacent to each other in the row direction, the sustain electrodes and the scan electrodes are connected to each other by means of a sustain-side bus electrode and a scan-side bus electrode, respectively. This makes it possible to provide a high luminous efficiency. Furthermore, each pixel cell is provided with a wide distance between the electrodes and thereby with a large effective opening portion. Thus, this provides only a small amount of reduction in intensity when the electrodes are spaced apart between the pixel cells arranged in the row direction in order to increase the luminous efficiency.Type: GrantFiled: October 14, 2005Date of Patent: February 26, 2008Assignee: Pioneer CorporationInventors: Yoshio Sano, Nobumitsu Aibara, Yoshiaki Yanai, Toshiyuki Akiyama, Tetsumasa Okamoto, Kazuaki Yanagida, Hirokazu Tateno, Naoto Hirano, Yoshito Tanaka, Tadashi Nakamura, Keiji Nunomura
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Patent number: 7002296Abstract: Ribs for defining pixel cells are formed in the shape of a lattice, and sustain electrodes and scan electrodes are disposed near the ribs. The electrodes are spaced apart in each pixel cell, and the sustain electrode and the scan electrode are each cut away between pixel cells arranged in the row direction to provide each pixel cell with individually separated electrodes. In addition, between pixel cells adjacent to each other in the row direction, the sustain electrodes and the scan electrodes are connected to each other by means of a sustain-side bus electrode and a scan-side bus electrode, respectively. This makes it possible to provide a high luminous efficiency.Type: GrantFiled: July 23, 2001Date of Patent: February 21, 2006Assignee: Pioneer CorporationInventors: Yoshio Sano, Nobumitsu Aibara, Yoshiaki Yanai, Toshiyuki Akiyama, Tetsumasa Okamoto, Kazuaki Yanagida, Hirokazu Tateno, Naoto Hirano, Yoshito Tanaka, Tadashi Nakamura, Keiji Nunomura
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Publication number: 20060033436Abstract: Ribs for defining pixel cells are formed in the shape of a lattice, and sustain electrodes and scan electrodes are disposed near the ribs. The electrodes are spaced apart in each pixel cell, and the sustain electrode and the scan electrode are each cut away between pixel cells arranged in the row direction to provide each pixel cell with individually separated electrodes. In addition, between pixel cells adjacent to each other in the row direction, the sustain electrodes and the scan electrodes are connected to each other by means of a sustain-side bus electrode and a scan-side bus electrode, respectively. This makes it possible to provide a high luminous efficiency. Furthermore, each pixel cell is provided with a wide distance between the electrodes and thereby with a large effective opening portion. Thus, this provides only a small amount of reduction in intensity when the electrodes are spaced apart between the pixel cells arranged in the row direction in order to increase the luminous efficiency.Type: ApplicationFiled: October 14, 2005Publication date: February 16, 2006Inventors: Yoshio Sano, Nobumitsu Aibara, Yoshiaki Yanai, Toshiyuki Akiyama, Tetsumasa Okamoto, Kazuaki Yanagida, Hirokazu Tateno, Naoto Hirano, Yoshito Tanaka, Tadashi Nakamura, Keiji Nunomura
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Publication number: 20020024303Abstract: Ribs for defining pixel cells are formed in the shape of a lattice, and sustain electrodes and scan electrodes are disposed near the ribs. The electrodes are spaced apart in each pixel cell, and the sustain electrode and the scan electrode are each cut away between pixel cells arranged in the row direction to provide each pixel cell with individually separated electrodes. In addition, between pixel cells adjacent to each other in the row direction, the sustain electrodes and the scan electrodes are connected to each other by means of a sustain-side bus electrode and a scan-side bus electrode, respectively. This makes it possible to provide a high luminous efficiency. Furthermore, each pixel cell is provided with a wide distance between the electrodes and thereby with a large effective opening portion. Thus, this provides only a small amount of reduction in intensity when the electrodes are spaced apart between the pixel cells arranged in the row direction in order to increase the luminous efficiency.Type: ApplicationFiled: July 23, 2001Publication date: February 28, 2002Applicant: NEC CORPORATIONInventors: Yoshio Sano, Nobumitsu Aibara, Yoshiaki Yanai, Toshiyuki Akiyama, Tetsumasa Okamoto, Kazuaki Yanagida, Hirokazu Tateno, Naoto Hirano, Yoshito Tanaka, Tadashi Nakamura, Keiji Nunomura
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Patent number: 6054358Abstract: A partial oxide film on a base region is removed to form an opening, a polycrystalline silicon film is deposited directly thereon, and by dry etching, the polycrystalline silicon film is divided into a region including an impurity of same conductive type as the base, and a region including an impurity of reverse conductive type of the base. By heat treatment, the impurity is diffused from the polycrystalline silicon film into the base region, and an external base diffusion layer and an emitter diffusion layer are formed. In succession, the surface of the polycrystalline silicon film is formed into polyside film to lower the resistance, and by using the polycrystalline silicon film as emitter electrode and base electrode, a fine base and emitter area is realized.Type: GrantFiled: August 20, 1998Date of Patent: April 25, 2000Assignee: NEC CorporationInventor: Tetsumasa Okamoto