Patents by Inventor Tadashi Ueda
Tadashi Ueda 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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Publication number: 20090051282Abstract: The present invention relates to an inorganic composition mainly containing a compound semiconductor, wherein the inorganic composition contains iridium element. The invention also relates to a method of producing an inorganic composite for producing an luminescent material, wherein the method comprises subjecting an inorganic composition mainly containing a compound semiconductor to an explosion by gunpowder and/or explosive in a sealed vessel. An inorganic composite for producing a luminescent material can be prepared by subjecting an inorganic composition to a doping treatment such as explosive treatment or heat-treatment. The inorganic composite can further be heat-treated to produce a luminescent material. The resulting luminescent material can be formed into a layer as a light emitter layer of an inorganic EL device.Type: ApplicationFiled: October 10, 2006Publication date: February 26, 2009Applicant: T. Chatani Co., Ltd.Inventors: Tadashi Ueda, Seikoh Yamauchi, Jiro Kanamori, Yoshisada Hayashi
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Publication number: 20090054637Abstract: The present invention provides a thermoplastic resin film which has uniform optical properties and can be used for a high quality functional film and a method for producing the same to suppress uneven thickness in the machine direction of a film and streaks in the film. The method for producing a cellulose acylate film (12), includes the steps of melting a thermoplastic resin in a single screw extruder (22), discharging and feeding the molten resin to a die (24) through the extruder (22), extruding the molten resin from the die (24) in the form of a sheet, and solidifying the molten resin by cooling, wherein the extruder has a feed section (A), a compression section (B) and a metering section (C) and transport efficiency ?F of the thermoplastic resin in the feed section (A) is 0.2 to 0.7.Type: ApplicationFiled: March 14, 2007Publication date: February 26, 2009Applicant: FUJIFILM CORPORATIONInventor: Tadashi Ueda
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Publication number: 20080088065Abstract: An aspect of the present invention provides a method for producing a cellulose resin film, comprising the step of: casting a cellulose resin sheet obtained by discharging from a molten cellulose resin a die in a form of a sheet onto a drum to produce a film, wherein the cast cellulose resin sheet has a film thickness distribution of 5 ?m or less per 10 m in terms of the lengthwise direction of the film, and the maximum value of a scratch depth on at least one surface of the cellulose resin sheet is 1 ?m or less. According to the first aspect, a film excellent in surface smoothness can be obtained, and thus the film can be used as a base film in various film products.Type: ApplicationFiled: October 12, 2007Publication date: April 17, 2008Applicant: FUJIFILM CorporationInventor: Tadashi UEDA
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Publication number: 20080081167Abstract: In general, the step-like unevenness due to the fluctuation in the sheet-shaped molten resin in the vicinity of the surface of the cooling support remains as it is as thickness unevenness without undergoing leveling because the sheet-shaped molten resin is cast on the cooling support immediately after generation of the fluctuation to be solidified by cooling. However, according to an aspect of the present invention, the vibration of the sheet-shaped molten resin in the vicinity of the surface of the cooling support is specified to be 10 dB or less, and accordingly, the fluctuation of the sheet-shaped molten resin in the vicinity of the surface of the cooling support is suppressed and the sheet-shaped molten resin sufficiently undergoes leveling on the cooling support. Consequently, the generation of the continuous and periodic step-like thickness unevenness along the lengthwise direction of the sheet-shaped molten resin can be prevented.Type: ApplicationFiled: September 28, 2007Publication date: April 3, 2008Applicant: FUJIFILM CorporationInventor: Tadashi Ueda
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Publication number: 20080075922Abstract: According to an aspect of the present invention, in the extruder, the mixing section in which kneading with a high shear force is conducted is disposed within a range where the molten resin does not generate excessive heat, and hence the cellulose resin can be sufficiently melt-kneaded without generating excessive heat, and thus a cellulose resin film being uniform and having excellent optical properties can be obtained.Type: ApplicationFiled: September 26, 2007Publication date: March 27, 2008Applicant: FUJIFILM CORPORATIONInventor: Tadashi Ueda
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Publication number: 20070267774Abstract: The present invention provides a method for producing a cellulose resin film, comprising the step of: discharging a molten resin, which is obtained by melting in an extruder, from a die in a form of a sheet onto a traveling or rotating cooling support so as to be solidified by cooling, wherein the molten resin is discharged by using a die, at least a lip of the die being formed of an alloy prepared by thermal spraying of 60 to 95% by weight of tungsten carbide and 5 to 40% by weight of a composite material including as the main components thereof cobalt or nickel and carbon and further including chromium or graphite in a content of 0.5 to 3% by weight.Type: ApplicationFiled: May 21, 2007Publication date: November 22, 2007Applicant: FUJIFILM CorporationInventor: Tadashi Ueda
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Publication number: 20070267127Abstract: A method is provided for manufacturing a wide band retardation plate which gives uniform phase difference characteristics to incident light over the whole visible wavelength region, and which, as it permits selection of raw materials regardless of whether they have a positive or negative intrinsic double refraction value, allows a wide selection of raw materials.Type: ApplicationFiled: January 26, 2007Publication date: November 22, 2007Inventors: Masaaki Otoshi, Takanori Sato, Tadashi Ueda, Fumitaka Terai
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Publication number: 20070080327Abstract: An inorganic EL element with a high luminance and an improved life can be produced by using a luminescent material which can be produced by an explosion method.Type: ApplicationFiled: October 11, 2005Publication date: April 12, 2007Applicant: T. Chatani Co., Ltd.Inventors: Tadashi Ueda, Seikoh Yamauchi, Jiro Kanamori, Yoshisada Hayashi
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Publication number: 20070080631Abstract: The present invention is characterized by a DC-driven inorganic EL element useful for mobile and other applications, the EL element including at least plural electrode layers, and a light emitter layer made of an inorganic composition, which is provided between the electrode layers, wherein the attainted brightness in the DC drive is 10000 cd/m2 or more.Type: ApplicationFiled: October 11, 2005Publication date: April 12, 2007Applicant: T. Chatani Co., Ltd.Inventors: Tadashi Ueda, Seikoh Yamauchi, Jiro Kanamori, Yoshisada Hayashi
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Patent number: 6918947Abstract: A method for making reduced iron using blast-furnace sludge is provided. The method includes a mixing step of mixing the blast-furnace sludge and an iron-oxide-containing powder to prepare a mixed material, an agglomerating step of agglomerating the mixed material to form agglomerates, a feeding step of feeding the agglomerates onto a continuously moving hearth, and a reducing step of heating the agglomerates to remove zinc and reduce the agglomerates.Type: GrantFiled: March 25, 2003Date of Patent: July 19, 2005Assignee: Kobe Steel, Ltd.Inventors: Takeshi Maki, Yoshiyuki Matsui, Takeshi Sugiyama, Takao Harada, Masahiko Tetsumoto, Hiroshi Tamazawa, Tadashi Ueda, Koichi Morioka, Nobuyuki Iwasaki, Hidetoshi Tanaka, Kojiro Fuji, Hiroshi Sugitatsu
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Patent number: 6822210Abstract: A data recording apparatus includes a laser diode applying light to a recording medium to record data, a front monitor diode detecting the intensity of light emitted from the laser diode, a switch device for switching to the lowpass filter in the operating state during the time period over which a signal of 14T mark is recorded, a lowpass filter for receiving a signal which is outputted from a front monitor diode, and a sampling/holding unit sampling the output signal which is outputted from the lowpass filter. The intensity of light emitted from the laser diode on the output signal sampled by the sampling/holding unit.Type: GrantFiled: September 24, 2002Date of Patent: November 23, 2004Assignee: Pioneer CorporationInventors: Yoshio Sasaki, Hiroyuki Tanaka, Hiroyuki Uchino, Tadashi Ueda
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Publication number: 20040156835Abstract: A protein formulation with improved stability, which comprises a physiologically active protein in one or more buffers selected from the group consisting of acetate buffer, imidazole buffer, a buffer of aminoethanesulfonate or a derivative thereof, and a buffer of aminopropanesulfonate or a derivative thereof.Type: ApplicationFiled: December 1, 2003Publication date: August 12, 2004Inventors: Taiji Imoto, Tadashi Ueda, Daisuke Kameoka
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Publication number: 20040041968Abstract: A method is provided for manufacturing a wide band retardation plate which gives uniform phase difference characteristics to incident light over the whole visible wavelength region, and which, as it permits selection of raw materials regardless of whether they have a positive or negative intrinsic double refraction value, allows a wide selection of raw materials.Type: ApplicationFiled: August 29, 2003Publication date: March 4, 2004Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Masaaki Otoshi, Takanori Sato, Tadashi Ueda, Fumitaka Terai
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Publication number: 20030188603Abstract: A method for making reduced iron using blast-furnace sludge is provided. The method includes a mixing step of mixing the blast-furnace sludge and an iron-oxide-containing powder to prepare a mixed material, an agglomerating step of agglomerating the mixed material to form agglomerates, a feeding step of feeding the agglomerates onto a continuously moving hearth, and a reducing step of heating the agglomerates to remove zinc and reduce the agglomerates.Type: ApplicationFiled: March 25, 2003Publication date: October 9, 2003Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Takeshi Maki, Yoshiyuki Matsui, Takeshi Sugiyama, Takao Harada, Masahiko Tetsumoto, Hiroshi Tamazawa, Tadashi Ueda, Koichi Morioka, Nobuyuki Iwasaki, Hidetoshi Tanaka, Kojiro Fuji, Hiroshi Sugitatsu
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Publication number: 20030062466Abstract: An data recording apparatus comprises a laser diode applying light to a recording medium to record data, a front monitor diode detecting the intensity of light emitted from the laser diode, a switch device for switching to said lowpass filter in the operating state during the time period over which a signal of 14T mark is recorded, a lowpass filter inputted a signal which is outputted from a front monitor diode, and a sampling/holding unit sampling the output signal outputted from the lowpass filter. The intensity of light emitted from the laser diode based on the output signal sampled by the sampling/holding unit.Type: ApplicationFiled: September 24, 2002Publication date: April 3, 2003Applicant: PIONEER CORPORATIONInventors: Yoshio Sasaki, Hiroyuki Tanaka, Hiroyuki Uchino, Tadashi Ueda
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Patent number: 5204786Abstract: A digital image recording and reproducing apparatus includes a serial-to-parallel converter connected between an image memory and a data memory, for converting serial image data from the image memory into parallel image data, and a parallel-to-serial converter connected between the image memory and the data memory, for converting parallel image data from the data memory into serial image data. The serial-to-parallel converter is operated when the image data are to be transferred from the image memory to the data memory, and the parallel-to-serial converter is operated when the image data are to be transferred from the data memory to the image memory. Since the data can be transferred from the data memory to the image memory with a minimum number of bits required to allow displayed images to be recognized, the time required to reproduce images is shortened, and hence the image retrieval time is also shortened.Type: GrantFiled: June 19, 1990Date of Patent: April 20, 1993Assignee: Pioneer Electronic CorporationInventors: Tsuneo Ishii, Tadashi Ueda, Kazuhisa Yoshita
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Patent number: 5136395Abstract: A still image signal reproducing apparatus repeatedly reads still image data recorded in an image data recording medium such as an optical disk to successively generate still image signals represented by the data, and still images indicated by the still image signals are successively displayed at high speed on a television picture monitor so that the user can browse the displayed still images for retrieval of a desired still image. When the desired still image is recognized, the user instructs the apparatus to stop the retrieval process. Then, the apparatus automatically displays a previous still image which is a preset number of still images in advance of the presently displayed still image, so that the desired image can quickly be retrieved regardless of the response time of the user.Type: GrantFiled: June 5, 1990Date of Patent: August 4, 1992Assignee: Pioneer Electronic CorporationInventors: Tsuneo Ishii, Tadashi Ueda, Kazuhisa Yoshita
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Patent number: 5020046Abstract: An apparatus for reproducing of data recorded on a disc type recording medium having alternatively a first region with previously recorded clock information and a second region with data information along the circumferential direction of the disc in the form of tracks. A clock signal re-generated on the basis of the clock information read from the recording medium is delayed by a preselected delay time during at least the reproducing period of the second region. Thus, the apparatus can operate stably regardless of the variations of the sensitivity of the disc and the recording condition such as intensity of the recording laser power or the like.Type: GrantFiled: December 21, 1988Date of Patent: May 28, 1991Assignee: Pioneer Electronic CorporationInventor: Tadashi Ueda
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Patent number: 4894732Abstract: A still picture recording/reproducing device using a recording disk. For still picture reproduction, a manual selection is made as to whether a field or a frame is to be reproduced. The selected quantity is read from the disk and stored in a memory from which it is repeatedly read out for still picture display.Type: GrantFiled: September 21, 1987Date of Patent: January 16, 1990Assignee: Pioneer Electronic CorporationInventor: Tadashi Ueda