Patents by Inventor Toshikatsu Manabe
Toshikatsu Manabe 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: 4888255Abstract: A non-aqueous electrochemical cell comprising an anode containing an alkali metal as an essential component of the active anode material, a cathode collector comprising a carbonaceous porous shaped body and a cathode-electrolyte consisting of an ionically conductive solution of a solute in a solvent containing a liquid oxyhalide, characterized in that at least one of the electrolyte and the collector is incorporated with an aromatic compound to prevent voltage drop at the initial stage of discharge.Type: GrantFiled: June 24, 1988Date of Patent: December 19, 1989Assignee: Hitachi Maxell, Ltd.Inventors: Kazumi Yoshimitsu, deceased, Shintaro Sekido, Kenya Kazehara, Kozo Kajita, Toshikatsu Manabe
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Patent number: 4793695Abstract: An electrochromic display device which comprises a display electrode comprising a transparent substrate, a transparent electrode formed on an inner surface of the transparent substrate and an electrochromic material layer for display made of tungstgen oxide and formed on the transparent electrode; a counter electrode comprising a substrate, a conductive layer formed on an inner surface of the substrate and an activated carbon fiber cloth bonded to the conductive layer with a conductive adhesive; and a spacer provided beween the display electrode and the counter electrode with their inner surfaces facing to each other to define, between them, an electrolyte chamber, which is filled with an electrolyte comprising LiClO.sub.4 dissolved in propylene carbonate containing water and an acid, which device has an increased original injected charge and good maintenance of the injected charge after prolonged storage.Type: GrantFiled: July 8, 1987Date of Patent: December 27, 1988Assignee: Hitachi Maxell, Ltd.Inventors: Shuichi Wada, Tsunemi Ohiwa, Hirokazu Kidou, Akira Kawakami, Toshikatsu Manabe
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Patent number: 4773740Abstract: An electrochromic display device which comprises a display electrode comprising a transparent substrate, a transparent electrode formed on an inner surface of the transparent substrate and an electrochromic material layer for display made of tungsten oxide and formed on the transparent electrode; a counter electrode comprising a substrate, a conductive layer formed on an inner surface of the substrate and an activated carbon fiber material; and a spacer provided between the display electrode and the counter electrode with their inner surfaces facing each other to define, between them, an electrolyte chamber, which is filled with an electrolyte comprising a lithium salt and at least one of the tertiary alkyl ammonium salts and quarternary alkyl ammonium slats dissolved in a non-aqueous medium containing a small amount of water, which device has increased original injected charge which can last for a long time.Type: GrantFiled: October 21, 1987Date of Patent: September 27, 1988Assignee: Hitachi Maxell, Ltd.Inventors: Akira Kawakami, Toshikatsu Manabe, Tsunemi Ohiwa, Shuichi Wada, Kenichi Yokoyama, Saburo Nonogaki, Kazusuke Yamanaka
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Patent number: 4353808Abstract: A phosphor represented by the formula:a (Sr.sub.1-x-y-z M.sub.x.sup.II M.sub.y.sup.III Eu.sub.z.sup.2+).sub.3 (PO.sub.4).sub.2 .multidot.b M'X.sub.2 (I)wherein M.sup.II is at least one element selected from the group consisting of Zn, Mg, Ca and Ba; M.sup.III is at least one element selected from the group consisting of Al, Y, Gd and La; M' is at least one element selected from the group consisting of Ca, Sr and Ba; X is one or more halogens; x, y and z should satisfy the following conditions, i.e. 0.ltoreq.x.ltoreq.0.999, 0.ltoreq.y.ltoreq.0.999, 0.0015.ltoreq.z.ltoreq.0.20 and x+y+z.ltoreq.1; and the ratio a/b is in the range of 0.3.ltoreq.a/b.ltoreq.3.0, provided that when y=0, the ratio a/b should be in the range of 0.3.ltoreq.a/b<3.0, and when x=0, the ratio a/b should be in the range of 0.3.ltoreq.a/b.ltoreq.1.2, is stable against the baking in the air and has high emission efficiency and excitation purity and can be used effectively as a blue phosphor of light sources for illumination.Type: GrantFiled: March 27, 1980Date of Patent: October 12, 1982Assignee: Hitachi, Ltd.Inventors: Shinkichi Tanimizu, Masaki Nakano, Teruki Suzuki, Toshikatsu Manabe
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Patent number: 4276363Abstract: A process for forming a phosphor screen of a color picture tube comprising forming a thin layer using a photosensitive composition which contains an aromatic diazonium salt as a photosensitive component and produces tackiness by exposure to actinic light on the surface of the substrate and contacting the tackified thin layer after exposure to light with phosphor particles to form each phosphor layer for emitting color is improved by using as the phosphor particles those coated with at least one surface coating material selected from the group consisting of Zn(OH).sub.2, Zn.sub.3 (PO.sub.4).sub.2 and AlPO.sub.4 in shortening the contact time between the thin layer and the phosphor particles.Type: GrantFiled: October 19, 1979Date of Patent: June 30, 1981Assignees: Hitachi, Ltd., Kasei Optonix, Ltd.Inventors: Toshikatsu Manabe, Saburo Nonogaki, Hajime Morishita, Shoichi Uchino, Yoshifumi Tomita, Masahiro Nishizawa, Hiroshi Yokomizo, Susumu Ohmatoi
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Patent number: 4273842Abstract: A patternwise coated powder layer can be formed by a process comprising the steps of coating a photosensitive composition, which contains an aromatic diazonium salt as a photosensitive component and becomes sticky by exposure, onto the surface of a substrate to form a thin layer, subjecting the thin layer to patternwise exposure with actinic radiation to produce stickiness at the exposed area, and then contacting powder particles with the thin layer after exposure to make the thin layer to accept the powder particles according to the powder acceptability of the thin layer. According to this process, for example, the phosphor screen of a color picture tube can simply be produced.LIST OF PRIOR ART (37 CFR 1.56 (a))The following reference is cited to show the state of the art:Japanese Patent Laid-Open Publication No.Type: GrantFiled: April 11, 1978Date of Patent: June 16, 1981Assignee: Hitachi, Ltd.Inventors: Saburo Nonogaki, Hajime Morishita, Michiaki Hashimoto, Toshikatsu Manabe, Yoshifumi Tomita, Masahiro Nishizawa
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Patent number: 4269918Abstract: A strongly fixed patternwise coated powder layer is formed on a substrate by subjecting a thin layer of photo-sensitive composition containing an aromatic diazonium salt as a photo-sensitive component capable of becoming sticky due to the formation of a photolytic reaction product of the salt by a patternwise light exposure, thereby making the light-exposed part of the thin layer sticky, bringing the thin layer in contact with powdery grains, thereby forming a powder-containing coating layer, and contacting the powder-containing coating layer with a powdery material that reacts with the photolytic product, thereby forming a water-insoluble or slightly water-soluble solid material to fix the powdery grains to the substrate.Type: GrantFiled: August 3, 1979Date of Patent: May 26, 1981Assignee: Hitachi, Ltd.Inventors: Saburo Nonogaki, Hajime Morishita, Shoichi Uchino, Toshikatsu Manabe
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Patent number: 4247612Abstract: In a method of forming a fluorescent screen on the inner surface of a face plate of a color picture tube wherein a film of photosensitive composition consisting essentially of a diazonium salt, the portions of the films to be deposited with phosphors are exposed to light through a color selection electrode so as to impart sticky property to the portions by a photoreaction and moisture in atmosphere and then a powder of phosphors is deposited by utilizing the sticky property, a photosensitive binder is incorporated into photosensitive film which undergoes a cross-linkage reaction with the photosensitive composition, thus rendering the mixture insoluble in water.Type: GrantFiled: August 8, 1979Date of Patent: January 27, 1981Assignee: Hitachi, Ltd.Inventors: Masahiro Nishizawa, Hiroshi Yokomizo, Yoshifumi Tomito, Saburo Nonogaki, Toshikatsu Manabe
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Patent number: 4049789Abstract: Nitric acid is added to an aqueous solution of organic acid salts of metals to be included in a resulting complex oxide powder, into which an aqueous solution of an inorganic salt of other metal component has been incorporated according to need, and the resulting solution is heated until the organic acid salts are decomposed and the decomposition product is heated, whereby a intended complex powder which is very fine and highly bulky and has a large specific surface area is obtained.Type: GrantFiled: June 20, 1975Date of Patent: September 20, 1977Assignees: Hitachi, Ltd., Babcock-Hitachi K.K.Inventors: Toshikatsu Manabe, Masao Ohta, Tetsuichi Kudo, Shouji Mochizuki, Tetsuo Gejyo