Patents by Inventor Ko Sano
Ko Sano 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: 7215078Abstract: A plasma display apparatus includes a plurality of display element electrodes each constituted of a pair of electrode segments having linear edges opposing each other, with a predetermined distance provided therebetween, the width of each of the electrode segments becoming narrower in the direction away from the associated one of the linear edges. The plasma display apparatus also includes a barrier structure, the inner surfaces of which being disposed along the outer ends of the plurality of display element electrodes and thereby defining a plurality of cells each of which is to be activated by the associated one of the plurality of display element electrodes so as to emit light. In the plasma display apparatus, ultraviolet rays caused by a discharge are efficiently transmitted to phosphor members on the surfaces of cells to emit light with a reduced loss of energy.Type: GrantFiled: October 13, 2004Date of Patent: May 8, 2007Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Ko Sano, Kazutoshi Morikawa
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Patent number: 7164476Abstract: An apparatus and method are disclosed for scanning and detecting defects in sewer and similar pipelines that eliminate the need to stop and pan-and-tilt areas of concern. In the method of the invention, a pipeline (15) inspection probe (10) of the apparatus of the invention comprising a CCD camera (14) with fish-eye lens (12) travels through the pipeline (15) on a self-propelled tractor automatically collecting data and transmitting it to a computer to provide a real-time display of the pipeline (15) interior with quasi three-dimensional information for effective and quick data analysis and management. The data includes digitized forward views and unfolded 360 degree laid-flat side-san (22) views of the pipeline (15) interior. Additionally, the digitized data may be stored for further analysis, tabulation, and for use with pipeline infrastructure maintenance software.Type: GrantFiled: May 30, 2001Date of Patent: January 16, 2007Assignee: OYO Corporation U.S.A.Inventors: Hiromasa Shima, Kenzi Karasaki, David Thomas Iseley, Toru Goebuchi, Ko Sano, Hiroyuki Iinuma
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Publication number: 20050062420Abstract: A plasma display apparatus includes a plurality of display element electrodes each constituted of a pair of electrode segments having linear edges opposing each other, with a predetermined distance provided therebetween, the width of each of the electrode segments becoming narrower in the direction away from the associated one of the linear edges. The plasma display apparatus also includes a barrier structure, the inner surfaces of which being disposed along the outer ends of the plurality of display element electrodes and thereby defining a plurality of cells each of which is to be activated by the associated one of the plurality of display element electrodes so as to emit light. In the plasma display apparatus, ultraviolet rays caused by a discharge are efficiently transmitted to phosphor members on the surfaces of cells to emit light with a reduced loss of energy.Type: ApplicationFiled: October 13, 2004Publication date: March 24, 2005Inventors: Ko Sano, Kazutoshi Morikawa
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Patent number: 6870316Abstract: A plasma display apparatus includes a plurality of display element electrodes each constituted of a pair of electrode segments having linear edges opposing each other, with a predetermined distance provided therebetween, the width of each of the electrode segments becoming narrower in the direction away from the associated one of the linear edges. The plasma display apparatus also includes a barrier structure, the inner surfaces of which being disposed along the outer ends of the plurality of display element electrodes and thereby defining a plurality of cells each of which is to be activated by the associated one of the plurality of display element electrodes so as to emit light. In the plasma display apparatus, ultraviolet rays caused by a discharge are efficiently transmitted to phosphor members on the surfaces of cells to emit light with a reduced loss of energy.Type: GrantFiled: March 26, 2001Date of Patent: March 22, 2005Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Ko Sano, Kazutoshi Morikawa
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Patent number: 6825835Abstract: A display device includes a PDP having sub-pixels (C) arranged in a delta configuration and driven by a sub-field gradation method. In an odd-numbered field, three sub-pixels (C22, C31, C33) constitute one pixel (P) (in a first display mode). In an even-numbered field, three sub-pixels (C31, C33, C42) constitute one pixel (P) (in a second display mode). The pixel (P) including the sub-pixel (C31) for emitting red (R) and the sub-pixel (C33) for emitting blue (B) selects the sub-pixels (C22, C42) alternately as the sub-pixel (C) for emitting green (G) on a field-by-field basis. This displaces the position of the pixel (P) field by field.Type: GrantFiled: November 23, 2001Date of Patent: November 30, 2004Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Ko Sano, Shigeki Harada
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Patent number: 6787978Abstract: A PDP with improved luminous efficiency is provided which prevents erroneous discharge and emission in adjacent cell spaces (8) and which effectively takes out light produced in the cell spaces (8), and a plasma display device having the PDP is also provided. The space between a front substrate (not shown) and a back substrate (1) is sectioned into a plurality of independent cell spaces (8) by grid-like barrier ribs (2). The cell spaces (8) include discharge cells (9) and non-discharge cells (10). The discharge cells (9) and the non-discharge cells (10) are alternately arranged in horizontal and vertical directions (in alternate checkers). A phosphor (3) is applied in the discharge cells (9) and the phosphor (3) is not applied in the non-discharge cells (10).Type: GrantFiled: November 27, 2001Date of Patent: September 7, 2004Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Shinsuke Yura, Shigeki Harada, Ko Sano
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Publication number: 20040021858Abstract: An apparatus and method are disclosed for scanning and detecting defects in sewer and similar pipelines that eliminate the need to stop and pan-and-tilt areas of concern. In the method of the invention, a pipeline (15) inspection probe (10) of the apparatus of the invention comprising a CCD camera (14) with fish-eye lens (12) travels through the pipeline (15) on a self-propelled tractor automatically collecting data and transmitting it to a computer to provide a real-time display of the pipeline (15) interior with quasi three-dimensional information for effective and quick data analysis and management. The data includes digitized forward views and unfolded 360 degree laid-flat side-san (22) views of the pipeline (15) interior. Additionally, the digitized data may be stored for further analysis, tabulation, and for use with pipeline infrastructure maintenance software.Type: ApplicationFiled: October 29, 2002Publication date: February 5, 2004Inventors: Hiromasa Shima, Kenzi Karasaki, David Thomas Iseley, Toru Goebuchi, Ko Sano, Hiroyuki Iinuma
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Patent number: 6683589Abstract: Barrier ribs of the second type (50) of the same height and material as barrier ribs of the first type (29) are formed on a second substrate in parallel with each other along a first direction (D1) to which display electrodes XE and YE extend. Further, phosphors (28) adhere to both side surface portions (50W3 and 50W4) of the barrier ribs of the second type (50). This achieves a surface discharge type PDP capable of reducing a loss of ultraviolet rays due to repetition of the self absorption and emission of ultraviolet rays, and preventing the leakage of luminescence and discharge to adjacent display lines.Type: GrantFiled: April 9, 2001Date of Patent: January 27, 2004Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Ko Sano, Kanzou Yoshikawa, Takeo Saikatsu, Takao Yasue, Toyohiro Uchiumi
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Patent number: 6638129Abstract: Barrier ribs of the second type (50) of the same height and material as barrier ribs of the first type (29) are formed on a second substrate in parallel with each other along a first direction (D1) to which display electrodes XE and YE extend. Further, phosphors (28) adhere to both side surface portions (50W3 and 50W4) of the barrier ribs of the second type (50). This achieves a surface discharge type PDP capable of reducing a loss of ultraviolet rays due to repetition of the self absorption and emission of ultraviolet rays, and preventing the leakage of luminescence and discharge to adjacent display lines.Type: GrantFiled: May 2, 2001Date of Patent: October 28, 2003Assignee: Mitsubishi Denki KabushikiInventors: Ko Sano, Kanzou Yoshikawa, Takeo Saikatsu, Takao Yasue, Toyohiro Uchiumi
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Patent number: 6583561Abstract: The object of the present invention is to provide a gas discharge display device having improved luminous efficiency by effectively using ultraviolet ray, which is absorbed in a partition wall or a protective film and the like without contributing to excitation of a fluorescent material. By adding gadolinium to the materials excluding the fluorescent material among structures surrounding the discharge cell, ultraviolet ray having a wavelength of 315 nm is generated, which can excite the fluorescent material. The ultraviolet ray excites the fluorescent material to generate visible light, and then, electric-light conversion efficiency is improved.Type: GrantFiled: February 14, 2001Date of Patent: June 24, 2003Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Takao Sawada, Keiji Fukuyama, Noritsuna Hashimoto, Ko Sano, Manabu Akiba
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Patent number: 6577061Abstract: Of three primary color phosphors (38) formed in unit luminescent areas (EU) constituting a pixel (EG), the width of a blue phosphor (38B) is about twice the width of red and green phosphors (38R, 38G). This allows a white color temperature of 9300 K without causing deterioration of the phosphors (38) and degrading red and green gradations.Type: GrantFiled: February 23, 1999Date of Patent: June 10, 2003Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Ko Sano, Takayoshi Nagai, Shinichiro Nagano, Kanzou Yoshikawa, Takeo Saikatsu, Toyohiro Uchiumi
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Publication number: 20020180354Abstract: Of three primary color phosphors (38) formed in unit luminescent areas (EU) constituting a pixel (EG), the width of a blue phosphor (38B) is about twice the width of red and green phosphors (38R, 38G). This allows a white color temperature of 9300 K without causing deterioration of the phosphors (38) and degrading red and green gradations.Type: ApplicationFiled: February 23, 1999Publication date: December 5, 2002Inventors: KO SANO, TAKAYOSHI NAGAI, SHINICHIRO NAGANO, KANZOU YOSHIKAWA, TAKEO SAIKATSU, TOYOHIRO UCHIUMI
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Publication number: 20020063701Abstract: A display device includes a PDP having sub-pixels (C) arranged in a delta configuration and driven by a sub-field gradation method. In an odd-numbered field, three sub-pixels (C22, C31, C33) constitute one pixel (P) (in a first display mode). In an even-numbered field, three sub-pixels (C31, C33, C42) constitute one pixel (P) (in a second display mode). The pixel (P) including the sub-pixel (C31) for emitting red (R) and the sub-pixel (C33) for emitting blue (B) selects the sub-pixels (C22, C42) alternately as the sub-pixel (C) for emitting green (G) on a field-by-field basis. This displaces the position of the pixel (P) field by field.Type: ApplicationFiled: November 23, 2001Publication date: May 30, 2002Inventors: Ko Sano, Shigeki Harada
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Publication number: 20020063510Abstract: A PDP with improved luminous efficiency is provided which prevents erroneous discharge and emission in adjacent cell spaces (8) and which effectively takes out light produced in the cell spaces (8), and a plasma display device having the PDP is also provided. The space between a front substrate (not shown) and a back substrate (1) is sectioned into a plurality of independent cell spaces (8) by grid-like barrier ribs (2). The cell spaces (8) include discharge cells (9) and non-discharge cells (10). The discharge cells (9) and the non-discharge cells (10) are alternately arranged in horizontal and vertical directions (in alternate checkers). A phosphor (3) is applied in the discharge cells (9) and the phosphor (3) is not applied in the non-discharge cells (10).Type: ApplicationFiled: November 27, 2001Publication date: May 30, 2002Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventors: Shinsuke Yura, Shigeki Harada, Ko Sano
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Publication number: 20020021090Abstract: A plasma display apparatus includes a plurality of display element electrodes each constituted of a pair of electrode segments having linear edges opposing each other, with a predetermined distance provided therebetween, the width of each of the electrode segments becoming narrower in the direction away from the associated one of the linear edges. The plasma display apparatus also includes a barrier structure, the inner surfaces of which being disposed along the outer ends of the plurality of display element electrodes and thereby defining a plurality of cells each of which is to be activated by the associated one of the plurality of display element electrodes so as to emit light. In the plasma display apparatus, ultraviolet rays caused by a discharge are efficiently transmitted to phosphor members on the surfaces of cells to emit light with a reduced loss of energy.Type: ApplicationFiled: March 26, 2001Publication date: February 21, 2002Inventors: Ko Sano, Kazutoshi Morikawa
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Publication number: 20010050528Abstract: The object of the present invention is to provide a gas discharge display device having improved luminous efficiency by effectively using ultraviolet ray, which is absorbed in a partition wall or a protective film and the like without contributing to excitation of a fluorescent material. By adding gadolinium to the materials excluding the fluorescent material among structures surrounding the discharge cell, ultraviolet ray having a wavelength of 315 nm is generated, which can excite the fluorescent material. The ultraviolet ray excites the fluorescent material to generate visisble light, and then, electric-light conversion efficiency is improved.Type: ApplicationFiled: February 14, 2001Publication date: December 13, 2001Inventors: Takao Sawada, Keiji Fukuyama, Noritsuna Hashimoto, Ko Sano, Manabu Akiba
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Publication number: 20010026255Abstract: Barrier ribs of the second type (50) of the same height and material as barrier ribs of the first type (29) are formed on a second substrate in parallel with each other along a first direction (D1) to which display electrodes XE and YE extend. Further, phosphors (28) adhere to both side surface portions (50W3 and 50W4) of the barrier ribs of the second type (50). This achieves a surface discharge type PDP capable of reducing a loss of ultraviolet rays due to repetition of the self absorption and emission of ultraviolet rays, and preventing the leakage of luminescence and discharge to adjacent display lines.Type: ApplicationFiled: May 2, 2001Publication date: October 4, 2001Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventors: Ko Sano, Kanzou Yoshikawa, Takeo Saikatsu, Takao Yasue, Toyohiro Uchiumi
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Publication number: 20010019318Abstract: Barrier ribs of the second type (50) of the same height and material as barrier ribs of the first type (29) are formed on a second substrate in parallel with each other along a first direction (D1) to which display electrodes XE and YE extend. Further, phosphors (28) adhere to both side surface portions (50W3 and 50W4) of the barrier ribs of the second type (50). This achieves a surface discharge type PDP capable of reducing a loss of ultraviolet rays due to repetition of the self absorption and emission of ultraviolet rays, and preventing the leakage of luminescence and discharge to adjacent display lines.Type: ApplicationFiled: April 9, 2001Publication date: September 6, 2001Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventors: Ko Sano, Kanzou Yoshikawa, Takeo Saikatsu, Takao Yasue, Toyohiro Uchiumi
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Patent number: 6249264Abstract: Barrier ribs of the second type (50) of the same height and material as barrier ribs of the first type (29) are formed on a second substrate in parallel with each other along a first direction (D1) to which display electrodes XE and YE extend. Further, phosphors (28) adhere to both side surface portions (50W3 and 50W4) of the barrier ribs of the second type (50). This achieves a surface discharge type PDP capable of reducing a loss of ultraviolet rays due to repetition of the self absorption and emission of ultraviolet rays, and preventing the leakage of luminescence and discharge to adjacent display lines.Type: GrantFiled: July 17, 1998Date of Patent: June 19, 2001Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Ko Sano, Kanzou Yoshikawa, Takeo Saikatsu, Takao Yasue, Toyohiro Uchiumi
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Patent number: 5073743Abstract: An electrode for discharge light source which is suitable for discharge display on account of its high reliability and outstanding discharge characteristics attributable to the metal conductor which is formed 1-5 .mu.m thick in the discharge container and also to the film of the material for secondary emission which is formed on the metal conductor from a compound composed of LaB.sub.6 and Ba in an amount of 0.01-20 mol % of LaB.sub.6 or a compound composed of LaB.sub.6, Ba in an amount of 0.01-20 mol % of LaB.sub.6, and Ca in an amount of 0.01-5 mol % of Ba, and is 0.5-2 .mu.m thick so that it is free of pin-holes.Type: GrantFiled: November 1, 1989Date of Patent: December 17, 1991Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Toshiro Kajiwara, Goroku Kobayashi, Keiji Fukuyama, Ko Sano, Yojiro Yano, Keiji Watanabe