Patents by Inventor Kanzi Shimizu
Kanzi Shimizu 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: 7396488Abstract: The present invention is to provide a light emitting device which can generate high-intensity light emission, using a fluorescent material containing a rare earth element ion complex and being excellent in durability and also provide the fluorescent material to be used therein. The present invention relates to a light emitting device comprising a semiconductor light emitting element which emits light within the region from near-ultraviolet light to visible light, and a fluorescent material which contains a rare earth element ion complex having an aromatic ring-containing Bronsted acid ion with a pKa value of 7 or less as a ligand and emits light by the action of light of the semiconductor light emitting element.Type: GrantFiled: November 8, 2006Date of Patent: July 8, 2008Assignee: Mitsubishi Chemical CorporationInventors: Tetsuo Murayama, Akiko Yabe, Kanzi Shimizu, Takayuki Shoda, Masahiko Yoshino
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Patent number: 7282160Abstract: The present invention is to provide a light emitting device which can generate high-intensity light emission, using a fluorescent material containing a rare earth element ion complex and being excellent in durability and also provide the fluorescent material to be used therein. The present invention relates to a light emitting device comprising a semiconductor light emitting element which emits light within the region from near-ultraviolet light to visible light, and a fluorescent material which contains a rare earth element ion complex having an aromatic ring-containing Bronsted acid ion with a pKa value of 7 or less as a ligand and emits light by the action of light of the semiconductor light emitting element.Type: GrantFiled: November 22, 2005Date of Patent: October 16, 2007Assignee: Mitsubishi Chemical CorporationInventors: Tetsuo Murayama, Akiko Yabe, Kanzi Shimizu, Takayuki Shoda, Masahiko Yoshino
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Patent number: 7270943Abstract: Imaging layers, image recording media, and methods of preparation of each, are disclosed. One exemplary embodiment of the imaging layer, among others, includes a matrix; a radiation absorbing compound dissolved in the matrix; an aromatic compound dissolved in the matrix; a color former; and an activator. One of the activator and the color former is dissolved in the matrix and the other of the activator and the color former is substantially insoluble in the matrix at ambient conditions and is substantially uniformly distributed in the matrix.Type: GrantFiled: July 8, 2004Date of Patent: September 18, 2007Assignee: Hewlett-Packard Development Company, L.P.Inventors: Tetsuo Muryama, Makoto Ochi, Kanzi Shimizu, Cari L. Dorsh, Vladek Kasperchik, William E. Dorogy
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Publication number: 20070085057Abstract: The present invention is to provide a light emitting device which can generate high-intensity light emission, using a fluorescent material containing a rare earth element ion complex and being excellent in durability and also provide the fluorescent material to be used therein. The present invention relates to a light emitting device comprising a semiconductor light emitting element which emits light within the region from near-ultraviolet light to visible light, and a fluorescent material which contains a rare earth element ion complex having an aromatic ring-containing Bronsted acid ion with a pKa value of 7 or less as a ligand and emits light by the action of light of the semiconductor light emitting element.Type: ApplicationFiled: November 8, 2006Publication date: April 19, 2007Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Tetsuo Murayama, Akiko Yabe, Kanzi Shimizu, Takayuki Shoda, Masahiko Yoshino
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Publication number: 20060172148Abstract: The present invention is to provide a light emitting device which can generate high-intensity light emission, using a fluorescent material containing a rare earth element ion complex and being excellent in durability and also provide the fluorescent material to be used therein. The present invention relates to a light emitting device comprising a semiconductor light emitting element which emits light within the region from near-ultraviolet light to visible light, and a fluorescent material which contains a rare earth element ion complex having an aromatic ring-containing Bronsted acid ion with a pKa value of 7 or less as a ligand and emits light by the action of light of the semiconductor light emitting element.Type: ApplicationFiled: November 22, 2005Publication date: August 3, 2006Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Tetsuo Murayama, Akiko Yabe, Kanzi Shimizu, Takayuki Shoda, Masahiko Yoshino
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Publication number: 20060132011Abstract: The present invention is to provide a light emitting device which can generate light emission long in life, good in color rendering properties, wide in color reproduction range and high in intensity. The present invention relates to a light emitting device having a light emitter which emits light within the region from near-ultraviolet light to visible light, and a fluorescent material containing at least one fluorescent complex which emits light by the action of light from the light emitter, wherein the fluorescent material is irradiated with substantially no light having a wavelength of 350 nm or less.Type: ApplicationFiled: November 30, 2005Publication date: June 22, 2006Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Kanzi Shimizu, Tetsuo Murayama
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Publication number: 20060009356Abstract: Imaging layers, image recording media, and methods of preparation of each, are disclosed. One exemplary embodiment of the imaging layer, among others, includes a matrix; a radiation absorbing compound dissolved in the matrix; an aromatic compound dissolved in the matrix; a color former; and an activator. One of the activator and the color former is dissolved in the matrix and the other of the activator and the color former is substantially insoluble in the matrix at ambient conditions and is substantially uniformly distributed in the matrix.Type: ApplicationFiled: July 8, 2004Publication date: January 12, 2006Inventors: Tetsuo Muryama, Makoto Ochi, Kanzi Shimizu, Cari Dorsh, Vladek Kasperchik, William Dorogy
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Patent number: 5464370Abstract: A device for changing air flow from a room has a casing with three openings arranged in a T-shaped disposition. The first and second openings are arranged in a L-shape with respect to a chamber in the casing, and the third opening connects the chamber to an exhaust passage. A flap is provided, with a side end rotatably supported at a corner between the first opening and the second opening such that the flap can be moved between positions for selectively closing the first or second opening by operation of a mechanism for rotating the flap.Type: GrantFiled: September 21, 1993Date of Patent: November 7, 1995Assignees: Yugen Kaisha New Media Systems, Daito Teck Kabushiki Kaisha, Yoshitake KusamichiInventors: Keishi Shimizu, Kanzi Shimizu, Masanobu Mitsumachi, Masato Nakajima, Tetsushi Ishigami, Yoshitake Kusamichi
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Patent number: 4988801Abstract: A water-soluble monoazo colorant represented by formula (I) in a form of a free acid: ##STR1## wherein D represents ##STR2## (wherein W.sup.2 represents lower alkoxy; U represents lower alkyl or lower alkoxy; Z represents --CH.dbd.CH.sub.2 or --CH.sub.2 CH.sub.2 OSO.sub.3 H and p and q represent each 0 or 1);W.sup.1 represents lower alkoxy; andV represents ##STR3## (wherein X represents halogen; Y represents halogen, sulfo, --OR.sup.1 wherein R.sup.1 represents lower alkyl or lower alkyl substituted by hydroxy, carboxy or sulfo, --O--R.sup.2 O).sub.m R.sup.3 alkyl and m is an integer of 1 to 6, or aliphatic or aromatic amino each substituted by one or two sulfo or carboxy groups);as well as a dyeing process by using the same. These colorants are useful in the dyeing of fibers. These colorants are useful in the dyeing of fibers.Type: GrantFiled: December 20, 1989Date of Patent: January 29, 1991Assignee: Mitsubishi Kasei CorporationInventors: Toshio Hihara, Kanzi Shimizu, Yukiharu Shimizu
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Patent number: 4985545Abstract: A water-soluble formazan colorant, which is represented by the following general formula (I) in the form of free acid: ##STR1## (where: R represents a hydrogen atom or a lower alkyl group which may be substituted; X denotes a phenylene group or a naphthylene group which may be substituted; Y indicates --SO.sub.2 CH.dbd.CH.sub.2 group or --SO.sub.2 C.sub.2 H.sub.4 W group wherein W represents a group to be eliminated by the action of alkali; and Z designates a lower alkylamino group, a phenylamino group or a naphthylamino group, having one or two water-soluble groups selected from the group consisting of hydroxyl group, sulfonic acid group and carboxylic acid group); and a method of dyeing by use of the colorant. The colorant is used to dye cellulosic and nitrogen-containing fibers in blue shades with excellent reactive fixing properties.Type: GrantFiled: August 15, 1988Date of Patent: January 15, 1991Assignee: Mitsubishi Kasei CorporationInventors: Kiyoshi Himeno, Toshio Hihara, Kanzi Shimizu, Yukiharu Shimizu
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Patent number: 4843150Abstract: A water soluble disazo colorant represented by formula (I) in the form of free acid: ##STR1## wherein K represents ##STR2## [wherein A represents a methyl group or a carboxylic group; R.sup.2 represents a hydrogen atom, an alkyl group of 1 to 8 carbon atoms, a sulfoalkyl grouop of 1 to 4 carbon atoms, or an alkyl group of 1 to 4 carbon atoms which is substituted by an alkoxy group of 1 to 4 carbon atoms;R.sup.3 represents a hydrogen atom, a halogen atom, a cyano group, a --CONH.sub.2 group, a carboxyl group, a sulfonic group, or a sulfomethyl group, p represents an integer of 1 or 2];Z represents a fluorine atom or ##STR3## [wherein R.sup.4 represents a hydrogen atom or an alkyl group of 1 to 4 carbon atoms;R.sup.5 and R.sup.6 each represents independently a hydrogen atom, an alkyl group of 1 to 4 carbon atoms, an alkoxy group of 1 to 4 carbon atoms, a sulfonic group, or a halogen atom; Y represents --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.Type: GrantFiled: July 9, 1987Date of Patent: June 27, 1989Assignee: Mitsubushi Chemical Industries LimitedInventors: Toshio Hihara, Yukiharu Shimizu, Kanzi Shimizu
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Patent number: 4743684Abstract: A reactive phthalocyanine dye having a specific substituent capable of dyeing cellulose fibers or a mixed fibers of polyester fibers and cellulose fibers to provide Turkish blue-dyed fibers excellent in color fastness to light and color fastness to washing is disclosed, which is represented by general formula [I] ##STR1##Type: GrantFiled: August 16, 1985Date of Patent: May 10, 1988Assignee: Mitsubishi Chemical IndustriesInventors: Toshio Niwa, Kiyoshi Himeno, Toshio Hihara, Kanzi Shimizu