Patents Assigned to The Japan Carlit Co., Ltd.
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Patent number: 4982312Abstract: A charge transfer complex comprising N,N'-alkylene-di-3,5-lutidine as a donor and 7,7,8,8-tetracyanoquinodimethane as an acceptor, the molar ratio of the acceptor to the donor of the charge transfer complex being between 3.0 and 5.0 has a high melting point and excellent electrical conductivity as an electrolyte for a capacitor. A solid electrolytic capacitor employing said charge transfer complex has reduced current leakage and high temperature load characteristics. A chip-type solid electrolytic capacitor employing said charge transfer complex has reduced current leakage, high temperature load characteristics and excellent thermal stability and life characteristics.Type: GrantFiled: October 27, 1989Date of Patent: January 1, 1991Assignee: The Japan Carlit Co., Ltd.Inventors: Shuko Shindo, Tsuyoshi Aoyama, Yoji Yamaguchi, Isao Isa, Makoto Ebisawa
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Patent number: 4829028Abstract: Alumina-zirconia composite sintered materials having sufficient high-temperature strength and thermal shock resistance as well as excellent mechanical strength are made by mixing Bayer alumina and/or bauxite as an alumina and baddeleyite and/or zircon sand as a zirconia material in amounts of 50 to 95% by weight of alumina, the balance being zirconia, respectively, subjecting the mixture to heating, melting and quenching, grinding the resulting solid to an average grain size of 10 .mu.m or smaller, and subjecting the resulting powder to molding and sintering.Type: GrantFiled: December 22, 1987Date of Patent: May 9, 1989Assignee: The Japan Carlit Co., Ltd.Inventors: Ichiro Seki, Morinosuke Kano, Akihiko Fujii, Akihiro Kano, Isao Isa
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Patent number: 4780796Abstract: A solid electrolytic capacitor having excellent characteristics in terms of both electrical properties and thermal stability is obtained by employing a solid electrolyte comprising both an electrically conductive polymer layer (I) formed by a chemical oxidation method and an electrically conductive polymer layer (II) formed by an electrochemical oxidation method.Type: GrantFiled: December 28, 1987Date of Patent: October 25, 1988Assignee: The Japan Carlit Co., Ltd.Inventors: Minoru Fukuda, Hideo Yamamoto, Isao Isa
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Patent number: 4688153Abstract: A charge transfer complex having excellent electrical conductivity and thermal stability is obtained by employing an isoquinoline substituted by an amyl radical at its N-position as a donor and 7,7,8,8-tetracyanoquinodimethane as an acceptor. In the process for preparation of said charge transfer complex, amyliodide and isoquinoline are reacted with each other in an organic solvent or no solvent and the product obtained by the reaction is reacted with 7,7,8,8-tetracyanoquinodimethane in an organic solvent. Also disclosed is a solid electrolytic capacitor which employs said charge transfer complex as an electrolyte.Type: GrantFiled: November 12, 1986Date of Patent: August 18, 1987Assignee: The Japan Carlit Co., Ltd.Inventors: Makoto Ebisawa, Shuko Shindo, Kenichi Hashizume, Isao Isa
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Patent number: 4687565Abstract: An improved electrolytic cell of simple construction capable of satisfactorily producing periodates comprises a plurality of cathodes mounted vertically in parallel to the long sides of a cell body and spaced at equal intervals from each other, a plurality of open anodic compartment boxes with plate separators adapted to maintain the equal intervals, one or more anodes inserted in the compartment boxes, a plurality of PVC diaphragms mounted on both sides of the anodic compartment boxes in parallel to the cathodes, an anolyte inlet mounted in the lower part of the anodic compartment boxes and an anolyte outlet mounted in the upper part of the opposite side of the anodic compartment boxes, a cell cover provided with air intake holes and cell gas exhaust pipes, and perforated PVC lids for the cathodic compartments positioned between the cell cover and the upper level of the catholyte.Type: GrantFiled: March 25, 1986Date of Patent: August 18, 1987Assignee: The Japan Carlit Co., Ltd.Inventors: Kaoru Hirakata, Masaaki Mochizuki, Hideo Kanai, Reiichi Itai
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Patent number: 4579969Abstract: Substituted 1,3-dibenzylureas are represented by the following general formula: ##STR1## wherein X is a chlorine atom, a bromine atom, an iodine atom, a trifluoromethyl group, a methyl group or a methoxy group. These compounds are used as a herbicidal composition comprising at least one of said compounds and a carrier, if desired, together with a suitable adjuvant.Type: GrantFiled: December 28, 1984Date of Patent: April 1, 1986Assignee: The Japan Carlit Co., Ltd.Inventors: Tetsuo Takematsu, Yasutomo Takeuchi, Michiyuki Kohno, Akihiko Aoki, Koichi Moriya
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Patent number: 4495048Abstract: A filter-press type electrolytic cell is disclosed wherein sodium hypochlorite is produced by diaphragmless electrolysis of saline water. The filter-press electrolytic cell is compact and simple in structure, and operates with improved current efficiency, at a reduced cell voltage, and with less power and with minimal maintenance.Type: GrantFiled: May 18, 1982Date of Patent: January 22, 1985Assignee: The Japan Carlit Co., Ltd.Inventors: Katsuyuki Murakami, Kaoru Hirakata, Shinichi Shimoda, Reiichi Itai
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Patent number: 4479864Abstract: An anode for generating available chlorine from seawater by electrolysis which comprises a substrate made of titanium or an alloy thereof, and a coating on said substrate which is made up of an active anode material layer containing 15-85 wt % of platinum, 5-35 wt % of iridium dioxide, and 10-15 wt % of ruthenium dioxide. The anode has greatly improved anode performance such as current efficiency, cell voltage, and durability. Therefor, its use for a long period of time becomes possible in any condition of seawater.Type: GrantFiled: July 28, 1983Date of Patent: October 30, 1984Assignee: The Japan Carlit Co., Ltd.Inventors: Hideo Kanai, Akihiro Shinagawa, Takahiro Yamazaki, Reiichi Itai
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Patent number: 4465509Abstract: Compound of the formula, ##STR1## wherein X is a hydrogen atom, a halogen atom, a lower alkyl group or a lower alkoxyl group, R.sup.1 is a methyl group or an ethyl group, R.sup.2 is a hydrogen atom, a lower alkyl group or an allyl group, and each of R.sup.3 and R.sup.4, independently, is a hydrogen atom, a methyl group or an ethyl group; provided that R.sup.1, R.sup.3 and R.sup.4 are not methyl groups simultaneously when both X and R.sup.2 are hydrogen atoms, and compositions containing these compounds exhibit herbicidal activity.Type: GrantFiled: September 27, 1982Date of Patent: August 14, 1984Assignee: The Japan Carlit Co., Ltd.Inventors: Tetsuo Takematsu, Yasutomo Takeuchi, Michiyuki Kohno, Akihiko Aoki, Nobuo Aoki, Toshiro Watanuki, Koichi Moriya
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Patent number: 4456510Abstract: Chlorine dioxide is produced by electrolysis of a solution of chlorite and by using a compact apparatus which provides continuously a uniform concentration of chlorine dioxide, which can be operated easily, which discharges a spent electrolyte that can be treated easily and which achieves highly efficient use of chlorite and high current efficiency.Type: GrantFiled: November 22, 1982Date of Patent: June 26, 1984Assignee: The Japan Carlit Co., Ltd.Inventors: Katsuyuki Murakami, Kaoru Hirakata, Fumio Ishizaka, Shinichi Shimoda, Reiichi Itai
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Patent number: 4432856Abstract: Chlorine dioxide is produced by electrolysis of a solution of chlorite and by using a compact apparatus which provides continuously a uniform concentration of chlorine dioxide, which can be operated easily, which discharges a spent electrolyte that can be treated easily and which achieves highly efficient use of chlorite and high current efficiency.Type: GrantFiled: April 28, 1981Date of Patent: February 21, 1984Assignee: The Japan Carlit Co., Ltd.Inventors: Katsuyuki Murakami, Kaoru Hirakata, Fumio Ishizaka, Shinichi Shimoda, Reiichi Itai
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Patent number: 4421730Abstract: Highly pure chlorine dioxide is generated very efficiently and safely in a single generator-crystallizer by reducing an alkali metal chlorate with chloride ion in a strong acid in the presence of hydrogen peroxide and a complex catalyst of palladium (II) with chloride ion.Type: GrantFiled: February 9, 1982Date of Patent: December 20, 1983Assignee: The Japan Carlit Co., Ltd.Inventors: Isao Isa, Hideo Yamamoto, Syuki Shindo, Morioki Shibuya
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Patent number: 4415411Abstract: An anode coated with .beta.-lead dioxide which comprises a titanium substrate, titanium expanded metal welded on at least one side of the titanium substrate, titanium reinforcing bars welded on the peripheries of said expanded metal to both said expanded metal and said substrate, at least one intermediate layer being applied on said substrate and said expanded metal, said intermediate layer consisting either of an alloy or an oxide of platinum group metals; and a .beta.-lead dioxide coating layer on said intermediate layer.The anode of this invention has particularly good dimensional stability and provides excellent adhesion of the .beta.-lead dioxide coating layer to the substrate, and hence is highly suitable for the electrolytic production of chlorates, perchlorates, and periodates, and furthermore it is also useful as an insoluble anode in electroplating and in electrolytic treatment of waste water.Type: GrantFiled: February 23, 1981Date of Patent: November 15, 1983Assignee: The Japan Carlit Co., Ltd.Inventors: Hideo Kanai, Akihiro Shinagawa, Takahiro Yamazaki, Reiichi Itai
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Patent number: 4376099Abstract: From a chlorate cell liquor containing an alkali metal chlorate, an alkali metal chloride and Cr(VI) ions, Cr(VI) ions are recovered by means of a combination of simple chemical procedures and re-used in an electrolysis step for manufacturing an alkali metal chlorate.Type: GrantFiled: August 24, 1981Date of Patent: March 8, 1983Assignee: The Japan Carlit Co., Ltd.Inventors: Hideo Yamamoto, Isao Isa, Morioki Shibuya
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Patent number: 4353790Abstract: An insoluble anode for generating oxygen which comprises a substrate made of titanium or an alloy thereof, a first coating on said substrate which is made of metallic bismuth or bismuth oxides, and a second coating on said first coating which is made of metallic iridium and iridium dioxide, has greatly improved durability and permits use for a long period of time.Type: GrantFiled: December 30, 1980Date of Patent: October 12, 1982Assignee: The Japan Carlit Co., Ltd.Inventors: Hideo Kanai, Akihiro Shinagawa, Takahiko Yamazaki, Reiichi Itai
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Patent number: 4270925Abstract: Concentration of chlorine and chlorine dioxide in either one or both of a gaseous mixture or an aqueous solution is automatically determined by using a gas-liquid chromatograph and a microcomputer with or without a gas-liquid phase equilibrator.Type: GrantFiled: June 15, 1979Date of Patent: June 2, 1981Assignee: The Japan Carlit Co., Ltd.Inventors: Isao Isa, Makoto Ebisawa, Noriyuki Goto
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Patent number: 4178356Abstract: Chlorine dioxide is generated very efficiently and safely by reducing an alkali metal chlorate with hydrochloric acid in a single generator-crystallizer in the presence of a chloropalladinate(II) complex catalyst or a mixed catalyst consisting of said chloropalladinate(II) complex catalyst and a compound or ions selected from the group consisting of vanadium pentoxide, manganese ions, dichromate ions, lead ions, and arsenic ions.Type: GrantFiled: December 2, 1977Date of Patent: December 11, 1979Assignee: The Japan Carlit Co., Ltd.Inventors: Morioki Shibuya, Isao Isa
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Patent number: 4170672Abstract: A process is disclosed for coating paper with a novel water-soluble thermosetting resin, which has the property of providing paper with a nearly constant wet and dry strength over a wide pH range; the resin can be mixed, if desired, with other water-soluble polymers such as starch, its derivatives, cellulose derivatives, polyvinylalcohol and polyacrylamide, and various pigments such as clay, calcium carbonate and titanium dioxide.Type: GrantFiled: August 9, 1978Date of Patent: October 9, 1979Assignee: The Japan Carlit Co., Ltd.Inventors: Koichi Moriya, Iwao Honda
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Patent number: 4169134Abstract: Chlorine dioxide is generated very efficiently and safely by reducing a chlorate in a strong acid in the presence of a catalyst containing thallium ions together with palladium ions or silver ions.Type: GrantFiled: December 2, 1977Date of Patent: September 25, 1979Assignee: The Japan Carlit Co., Ltd.Inventors: Isao Isa, Morioki Shibuya, Makoto Ebisawa
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Patent number: RE30259Abstract: Disclosed is a novel water-soluble thermosetting resin which has the property of providing paper with a nearly constant wet and dry strength over a wide pH range according to methods of wet-end additions or surface applications.Type: GrantFiled: February 23, 1979Date of Patent: April 22, 1980Assignee: The Japan Carlit Co., Ltd.Inventors: Koichi Moriya, Iwao Honda