Patents Assigned to Applied Science Research Institute
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Patent number: 7453402Abstract: An example antenna system includes a parasitic element and a symmetrical element fed by a balanced RF signal source. The fed element is operable to couple with the parasitic element, thereby causing the parasitic element to resonate at a first frequency band. Thus, the fed element is operable to act as a balanced capacitive feed for the parasitic element. Also, the parasitic element is symmetrical with respect to a polarity of the fed element.Type: GrantFiled: June 19, 2006Date of Patent: November 18, 2008Assignee: Hong Kong Applied Science and Research Institute Co., Ltd.Inventors: Corbett Rowell, Chi Lun Mak
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Patent number: 4701301Abstract: A process for producing an internal-oxidized alloy, which comprises allowing a plasma generated in the presence of oxygen, a gas of an oxygen atom-containing compound or a mixture of oxygen and a gas of an oxygen atom-containing compound to act on an alloy consisting of at least two metal elements, thereby selectively oxidizing at least one metal element other than the matrix metal in said alloy. Particles of the internal-oxidized alloy thus obtained can, if necessary, be molded into a desired shape and sintered. Said process enables one to produce an internal-oxidized alloy at a high speed at a temperature of not more than 0.9 Tm (Tm: the melting point of the starting alloy) and does not require the step of separating an internal-oxidizing agent which step is required in the conventional process.Type: GrantFiled: July 16, 1986Date of Patent: October 20, 1987Assignees: Japan Synthetic Rubber Co., Ltd., Applied Science Research InstituteInventors: Hideyuki Kuwahara, Bunji Kondo, Jun Takada, Kenji Yanagihara, Mituo Kimura, Masahiro Niinomi
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Patent number: 4423261Abstract: A graphite fluoride comprising mainly poly-dicarbon monofluoride represented by the formula (C.sub.2 F).sub.n can be produced in an extremely short period of time by a process comprising reacting a graphite material with fluorine in the presence of a specific fluoride.Type: GrantFiled: January 8, 1982Date of Patent: December 27, 1983Assignees: Nobuatsu Watanabe, Applied Science Research InstituteInventors: Nobuatsu Watanabe, Tsuyoshi Nakajima, Masayuki Kawaguchi
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Patent number: 4386137Abstract: A process for producing a novel graphite fluoride type film on the surface of an aluminum substrate in which an aluminum substrate and a carbonaceous material or polycarbon monofluoride represented by the formula (CF).sub.n are heated in an atmosphere of fluorine gas. The film has a luster, and not only exhibits high degree of hydrophobicity but also has corrosion resistance to aqueous solutions of acid and alkali as well as a mechanical strength.Type: GrantFiled: December 15, 1981Date of Patent: May 31, 1983Assignees: Nobuatsu Watanabe, Applied Science Research InstituteInventors: Nobuatsu Watanabe, Tsuyoshi Nakajima, Hiroaki Yamada, Noboru Ohsawa
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Patent number: 4247608Abstract: An electrolytic cell comprising a negative electrode having as the active material a light metal and a positive electrode as the main active material a poly-dicarbon monofluoride represented by the formula (C.sub.2 F).sub.n has been found to exhibit a high discharge voltage as compared with the conventional electrolytic cell of the type using as the active material of the positive electrode a polycarbon monofluoride represented by the formula (CF).sub.n and also been found to be excellent in flatness of discharge voltage and shelf-life. The electrolytic cell of the present invention can be produced at low cost due to high yield of (C.sub.2 F).sub.n in production, and is useful as the energy source of such devices as watch, clock, desk type computer, small type radio, etc.Type: GrantFiled: August 20, 1979Date of Patent: January 27, 1981Assignees: Nobuatsu Watanabe, Applied Science Research InstituteInventors: Nobuatsu Watanabe, Kenichi Morigaki
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Patent number: 4243615Abstract: A process for preparing a novel chemical compound poly-dicarbon monofluoride represented by the formula (C.sub.2 F).sub.n and having a crystalline structure of packing form featured by its layer structure stacked with an interlayer spacing of about 9.0 A. Such process consists in that a particulate carbon material having a specific crystallinity is reacted with fluorine at 300.degree. to 500.degree. C. According to the process, the desired product can be obtained in a yield as high as 100% with respect to not only the carbon material employed but also the fluorine employed.Type: GrantFiled: June 29, 1979Date of Patent: January 6, 1981Assignees: Watanabe Applied Science Research Institute, Nobuatsu WatanabeInventors: Nobuatsu Watanabe, Yasushi Kita
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Patent number: 4139474Abstract: A novel chemical compound poly-dicarbon monofluoride represented by the formula (C.sub.2 F).sub.n and having a crystalline structure of packing form featured by its layer structure as shown in FIG. 12 hereof stacked with an interlayer spacing of about 9.0 A. Such new compound can be produced under relatively mild reaction conditions and obtained in a yield as large as 100% with respect to not only the carbon material employed but also the fluorine employed. The new compound is black under the formation conditions and of low crystallinity, but it can be easily converted to that of high crystallinity and white color by heat treatment in a fluorine atmosphere. The new compound has a wide variety of uses, for example, as lubricants, stain-resistant and water-repellent materials, cathode materials in high energy primary cells, etc.Type: GrantFiled: August 15, 1977Date of Patent: February 13, 1979Assignees: Nobuatsu Watanabe, Applied Science Research InstituteInventors: Nobuatsu Watanabe, Yasushi Kita
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Patent number: RE30667Abstract: A novel chemical compound poly-dicarbon monofluoride represented by the formula (C.sub.2 F).sub.n and having a crystalline structure of packing form .[.featured by its layer structure as shown in FIG. 12 hereof.]. stacked with an interlayer spacing of about 9.0 A. Such new compound can be produced under relatively mild reaction conditions and obtained in a yield as large as 100% with respect to not only the carbon material employed but also the fluorine employed. The new compound is black under the formation conditions and of low crystallinity, but it can be easily converted to that of high crystallinity and white color by heat treatment in a fluorine atmosphere. The new compound has a wide variety of uses, for example, as lubricants, stain-resistant and water-repellent materials, cathode materials in high energy primary cells, etc.Type: GrantFiled: July 6, 1979Date of Patent: July 7, 1981Assignees: Nobuatsu Watanabe, Applied Science Research InstituteInventors: Nobuatsu Watanabe, Yasushi Kita