Patents by Inventor Toshio Shimaoogi
Toshio Shimaoogi 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: 8344407Abstract: A white light source includes: an insulating substrate; a light-emitting diode chip provided on the insulating substrate and that emits ultraviolet light with a wavelength of 330 nm to 410 nm; and a phosphor layer formed to cover the light-emitting diode chip, including a red emitting phosphor, a green emitting phosphor, and a blue emitting phosphor as a phosphor, and the phosphors are dispersed in a cured transparent resin, wherein when it is assumed that the shortest distance between a surface of the phosphor layer and a peripheral portion of the light-emitting diode chip is t(mm) and the mean free path defined by the following expression (1) is L(mm), the t and L satisfy 3.2?t/L. [Expression 1] L=1/(n×?)??(1) (n: number of phosphors per unit volume of the phosphor layer (pcs/mm3), and ?: average cross section area of a phosphor in the phosphor layer (mm2)).Type: GrantFiled: May 28, 2009Date of Patent: January 1, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd.Inventors: Tetsuo Inoue, Hajime Takeuchi, Yasumasa Ooya, Toshio Shimaoogi, Yasuhiro Shirakawa
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Patent number: 8174180Abstract: A light emitting device 1 includes a light emitting diode, a phosphor layer containing phosphors that emit a visible light by being excited by a light emitted from the light emitting diode, and a reflector disposed to surround the light emitting diode. A portion of 50% or more in an area ratio of a reflecting surface of the reflector is formed as a scattering surface with a mean square inclination (?q) (0.1 mm) in a range of not less than 0.003 nor more than 0.03.Type: GrantFiled: January 14, 2011Date of Patent: May 8, 2012Assignees: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd.Inventors: Tetsuo Inoue, Hajime Takeuchi, Yasumasa Ooya, Toshio Shimaoogi, Yasuhiro Shirakawa
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Publication number: 20110109222Abstract: A light emitting device 1 includes a light emitting diode, a phosphor layer containing phosphors that emit a visible light by being excited by a light emitted from the light emitting diode, and a reflector disposed to surround the light emitting diode. A portion of 50% or more in an area ratio of a reflecting surface of the reflector is formed as a scattering surface with a mean square inclination (?q) (0.1 mm) in a range of not less than 0.003 nor more than 0.03.Type: ApplicationFiled: January 14, 2011Publication date: May 12, 2011Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MATERIALS CO., LTD.Inventors: Tetsuo INOUE, Hajime TAKEUCHI, Yasumasa OOYA, Toshio SHIMAOOGI, Yasuhiro SHIRAKAWA
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Publication number: 20110073899Abstract: A white light source includes: an insulating substrate; a light-emitting diode chip provided on the insulating substrate and that emits ultraviolet light with a wavelength of 330 nm to 410 nm; and a phosphor layer formed to cover the light-emitting diode chip, including a red emitting phosphor, a green emitting phosphor, and a blue emitting phosphor as a phosphor, and the phosphors are dispersed in a cured transparent resin, wherein when it is assumed that the shortest distance between a surface of the phosphor layer and a peripheral portion of the light-emitting diode chip is t(mm) and the mean free path defined by the following expression (1) is L(mm), the t and L satisfy 3.2?t/L. [Expression 1] L=1/(n×?)??(1) (n: number of phosphors per unit volume of the phosphor layer (pcs/mm3), and ?: average cross section area of a phosphor in the phosphor layer (mm2)).Type: ApplicationFiled: May 28, 2009Publication date: March 31, 2011Applicant: TOSHIBA MATERIALS CO., LTDInventors: Tetsuo Inoue, Hajime Takeuchi, Yasumasa Ooya, Toshio Shimaoogi, Yasuhiro Shirakawa
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Patent number: 7088034Abstract: An electron gun assembly that emits three electron beams, which are arranged in line, toward a phosphor screen includes three cathodes arranged in line, three first grids arranged to face the associated cathodes, and a second grid with an integral structure that is disposed to face a phosphor screen side of the first grids. Each of the first grids is formed of a cup-shaped electrode body having an electron beam passage hole. The electron gun assembly further includes an insulation member through which the three first grids penetrate, the insulation member thus integrally holding the three first grids, a cylindrical member that surrounds the insulation member and has an implant part, and an insulating support member that supports the implant part of the cylindrical member.Type: GrantFiled: July 12, 2004Date of Patent: August 8, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Toshio Shimaoogi, Shigeru Sugawara
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Patent number: 6987367Abstract: A prefocus lens section in an electron gun assembly includes a second grid that is disposed on an electron beam generating section side, a third grid that is disposed on a main lens section side, and a shield grid that is disposed between the second grid and the third grid. The shield grid is a cup-shaped electrode with a side wall that surrounds an outer peripheral part of the third grid, which part is located on the second grid side, and extends in parallel to a tube axis. The shield grid has a bottom surface disposed to face the second grid and has an open end disposed to face the third grid. A relationship, Ec<Vf<Er, is established, where Ec is a potential applied to the second grid, Vf is a potential applied to the shield grid, and Er is a potential applied to the third grid.Type: GrantFiled: May 20, 2004Date of Patent: January 17, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Osamu Ono, Shigeru Sugawara, Toshio Shimaoogi, Tomoyuki Hayama
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Publication number: 20050012443Abstract: An electron gun assembly that emits three electron beams, which are arranged in line, toward a phosphor screen includes three cathodes arranged in line, three first grids arranged to face the associated cathodes, and a second grid with an integral structure that is disposed to face a phosphor screen side of the first grids. Each of the first grids is formed of a cup-shaped electrode body having an electron beam passage hole. The electron gun assembly further includes an insulation member through which the three first grids penetrate, the insulation member thus integrally holding the three first grids, a cylindrical member that surrounds the insulation member and has an implant part, and an insulating support member that supports the implant part of the cylindrical member.Type: ApplicationFiled: July 12, 2004Publication date: January 20, 2005Inventors: Toshio Shimaoogi, Shigeru Sugawara
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Publication number: 20040251836Abstract: A prefocus lens section in an electron gun assembly includes a second grid that is disposed on an electron beam generating section side, a third grid that is disposed on a main lens section side, and a shield grid that is disposed between the second grid and the third grid. The shield grid is a cup-shaped electrode with a side wall that surrounds an outer peripheral part of the third grid, which part is located on the second grid side, and extends in parallel to a tube axis. The shield grid has a bottom surface disposed to face the second grid and has an open end disposed to face the third grid. A relationship, Ec<Vf<Er, is established, where Ec is a potential applied to the second grid, Vf is a potential applied to the shield grid, and Er is a potential applied to the third grid.Type: ApplicationFiled: May 20, 2004Publication date: December 16, 2004Inventors: Osamu Ono, Shigeru Sugawara, Toshio Shimaoogi, Tomoyuki Hayama
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Patent number: 4495439Abstract: A magnetic focusing type cathode ray tube includes a magnetic yoke assembly, for magnetically focusing and converging three in-line electron beams, having a pair of magnetic yokes opposing each other with a predetermined gap therebetween. The magnetic cylinders on the cathode side are so formed as to have a strong magnetic shield effect while the magnetic cylinders on the screen side are weak in magnetic shield effect. The radial components in the magnetic field produced in the magnetic gap, which act on the side beams in a direction perpendicular to an in-line direction, are reverse in polarity on the cathode side and screen side so that radial components emerge so as to converge the beams in a tube axis direction.Type: GrantFiled: August 25, 1982Date of Patent: January 22, 1985Assignee: Tokyo Shibaura Denki Kabushiki KaishaInventors: Taketoshi Shimoma, Kumio Fukuda, Toshio Shimaoogi
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Patent number: 4490644Abstract: A magnetic focusing type cathode ray tube comprising a magnetic focusing device positioned in front of a three beam in-line type cathode for focusing the electron beam emitted from the cathode. The magnetic focusing device is constructed of a magnetic yoke assembly having a pair of magnetic yoke members. Each magnetic yoke member has three cylindrical magnetic yoke portions through which an electron beam can pass, and one common cylindrical magnetic yoke portion having a larger diameter which completely surrounds the three electron beam passages. The cylindrical magnetic yoke portions of the yoke members are spaced equidistantly, facing each other in the electron beam passages.Type: GrantFiled: August 25, 1982Date of Patent: December 25, 1984Assignee: Tokyo Shibaura Denki Kobashiki KaishaInventors: Taketoshi Shimoma, Kumio Fukuda, Toshio Shimaoogi