Patents by Inventor Kenji Usui
Kenji Usui 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: 20020045784Abstract: In a process for production of allyl chloride whereby allyl alcohol and hydrogen chloride are reacted in the presence of a catalyst and the resulting allyl chloride is distilled off from the reaction system, the by-production of diallyl ether is suppressed by lowering the molar concentration ratio of hydrogen chloride with respect to allyl alcohol in the reaction solution ([AAL]½/[HCL]).Type: ApplicationFiled: February 15, 2001Publication date: April 18, 2002Inventors: Kenji Usui, Shoichi Oishi, Toshitaka Hiro, Tatsuharu Arai
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Patent number: 6158113Abstract: A jig for loosening electric wires of a wire harness passed through a grommet is disclosed. The jig includes a fixing-side clamping portion for clamping the one end of a wire harness, a guide rail extending in a longitudinal direction of the wire harness, a bearing slidably engaged with the guide rail; a lock portion for locking said bearing to the guide rail, a circular rotating member, supported by said bearing, for rotating the wire harness in a circumferential direction of the wire harness; and a movable-side clamping portion, integrally attached to the rotating member, for clamping the other end of the wire harness. The rotating member may have a spiral cam groove, and the bearing may have an engagement protrusion to be engaged with the cam groove so that when the one clamping portion is inverted, the rotating member can move in its longitudinal direction. The one clamping portion may include a rachet mechanism.Type: GrantFiled: September 10, 1998Date of Patent: December 12, 2000Assignee: Yazaki CorporationInventors: Takahiro Saito, Norihiro Yoneyama, Kenji Usui, Masaya Uchida
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Patent number: 5846467Abstract: A method and jig for loosing electric wires of a wire harness passed through a grommet are disclosed. A wire harness is clamped at the front and rear of a grommet. One clamping portion of the jig is rotated to twist the wire harness and thereafter inverted to loose it. Otherwise, the one clamping portion is moved in a direction of compressing the wire harness. The jig includes a fixing-side clamping portion for clamping the one end of a wire harness, a guide rail extending in a longitudinal direction of the wire harness, a bearing slidably engaged with the guide rail; a lock portion for locking said bearing to the guide rail, a circular rotating member, supported by said bearing, for rotating the wire harness in a circumferential direction of the wire harness; and a movable-side clamping portion, integrally attached to the rotating member, for clamping the other end of said wire harness.Type: GrantFiled: June 10, 1996Date of Patent: December 8, 1998Assignee: Yazaki CorporationInventors: Takahiro Saito, Norihiro Yoneyama, Kenji Usui, Masaya Uchida
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Patent number: 5154896Abstract: An apparatus for reaction between a solid phase and a liquid phase of the present invention allows a tubular reaction vessel accommodating the liquid phase that reacts with the solid phase bound to the inside surface of said reaction vessel to hold in the peripheral region of a rotating element inclined with respect to the horizontal direction and also allows said tubular reaction vessel to repeat a predetermined number of cycles, each consisting at least of the steps of rotating continuously said rotating element in the inclined state at a predetermined constant speed for a predetermined time and loading/unloading said reaction vessel for the rest time of the rotating element. Because of these features, the apparatus of the present invention makes possible to have a simple construction which can be easily handled and can continuously promote the reaction in a plurality of the reaction vessels under identical reaction conditions for identical reaction time at a series of time.Type: GrantFiled: September 5, 1990Date of Patent: October 13, 1992Assignee: Mochida Pharmaceutical Co., Ltd.Inventors: Ei Mochida, Kenji Usui
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Patent number: 5153339Abstract: Naphthoquinone having a purity of higher than 95% is separated from an aqueous slurry of naphthoquinone and phthalic acid prepared by contacting, with an aqueous medium, a reaction mixture gas containing naphthoquinone and phthalic anhydride formed by a catalytic vapor phase oxidation of naphthalene. An extraction of naphthoquinone is carried out with a chain or cyclic saturated hydrocarbon at 60.degree. to 110.degree. C. under the condition adjusting pH to 1.2 to 5 and substantially dissolving phthalic acid in the aqueous phase and leaving resinous materials as a bottom.Type: GrantFiled: June 25, 1982Date of Patent: October 6, 1992Assignee: Kawasaki Kasei Chemicals Ltd.Inventors: Ryo Matsuura, Tatsuyoshi Komatsu, Kenji Usui, Toru Sato
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Patent number: 4795604Abstract: A method for molding 1,4,4a,9a-tetrahydroanthraquinone by cooling and solidifying a melt of 1,4,4a,9a-tetrahydroanthraquinone, which comprises contacting the melt with a cooling surface of a temperature of from about 50.degree. to about 80.degree. C. for solidification, and peeling off the solidified product.Type: GrantFiled: June 10, 1987Date of Patent: January 3, 1989Assignee: Kawasaki Kasei Chemicals Ltd.Inventors: Katsumi Matsuzaki, Kenji Usui, Seishi Ikemoto
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Patent number: 4476629Abstract: A method and apparatus for automatically producing a wire harness. A plurality of wiring blocks are arranged on a workbench. Each wiring block has a wire clamping section, a wire cutting section, and a terminal press attaching section. The wire cutting section and the terminal press attaching section can be separated from the wire clamping section. This structure makes it possible to automate a series of operations including wire cutting, wire peeling, and terminal attaching operations.Type: GrantFiled: October 5, 1981Date of Patent: October 16, 1984Assignee: Yazaki CorporationInventors: Yoshitsugu Suzuki, Shogo Iizuka, Shigeo Kajiyama, Kenji Usui, Masahiro Kobayashi, Toshinori Igura, Shigezi Kudo, Sanae Suzuki
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Patent number: 4454652Abstract: A wire harness manufactured by a new method and a new apparatus is provided. A covered wire paid out from a selected one of reels is extended in a predetermined lay-out and fixed. The thus fixed wire is cut-off from the reel. Then, another wire is paid out from another reel for arranging it in a juxtaposing relation to the previously laid-out wire and cut off from the reel. After repeating the above steps, the arranged wires are tied up to form a wire harness. There is also provided a device which puts the above method into practice, thereby reducing complicated assorting work involved in the manufacture of a wire harness. A method and a device for automatically uncovering end portions of each wire of the wire harness and attaching terminals thereto are also provided to greatly increasing the productivity.Type: GrantFiled: January 8, 1981Date of Patent: June 19, 1984Assignee: Yazaki CorporationInventors: Yoshitsugu Suzuki, Syogo Iizuka, Shigeo Kajiyama, Kenji Usui, Masahiro Kobayashi
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Patent number: 4440053Abstract: A wire harness manufactured by a new method and a new apparatus is provided. A covered wire paid out from a selected one of reels is extended in a predetermined lay-out and fixed. The thus fixed wire is cut-off from the reel. Then, another wire is paid out from another reel for arranging it in a juxtaposing relation to the previously laid-out wire and cut off from the reel. After repeating the above steps, the arranged wires are tied up to form a wire harness. There is also provided a device which puts the above method into practice, thereby reducing complicated assorting work involved in the manufacture of a wire harness. A method and a device for automatically uncovering end portions of each wire of the wire harness and attaching terminals thereto are also provided to greatly increasing the productivity.Type: GrantFiled: June 18, 1982Date of Patent: April 3, 1984Assignee: Yazaki Corp.Inventors: Yoshitsugu Suzuki, Syogo Iizuka, Shigeo Kajiyama, Kenji Usui, Masahiro Kobayashi
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Patent number: 4433479Abstract: A wire harness manufactured by a new method and a new apparatus is provided. A covered wire paid out from a selected one of reels is extended in a predetermined lay-out and fixed. The thus fixed wire is cut-off from the reel. Then, another wire is paid out from another reel for arranging it in a juxtaposing relation to the previously laid-out wire and cut off from the reel. After repeating the above steps, the arranged wires are tied up to form a wire harness. There is also provided a device which puts the above method into practice, thereby reducing complicated assorting work involved in the manufacture of a wire harness. A method and a device for automatically uncovering end portions of each wire of the wire harness and attaching terminals thereto are also provided to greatly increasing the productivity.Type: GrantFiled: January 8, 1981Date of Patent: February 28, 1984Assignee: Yazaki CorporationInventors: Yoshitsugu Suzuki, Syogo Iizuka, Shigeo Kajiyama, Kenji Usui, Masahiro Kobayashi
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Patent number: 4412954Abstract: 1,4,4a,9a-Tetrahydroanthraquinone compounds are produced by Diels-Alder reaction of 1,4-naphthoquinone with a conjugated diolefin in the 1,4,4a,9a-tetrahydroanthraquinone compound as a reaction medium.Type: GrantFiled: July 14, 1981Date of Patent: November 1, 1983Assignee: Kawasaki Kasei Chemicals Ltd.Inventors: Tatsuyoshi Komatsu, Kenji Usui
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Patent number: 4369140Abstract: A hydroanthraquinone is produced from a reaction mixture obtained by the Diels-Alder reaction of naphthoquinone with a conjugated diolefin in an inert organic solvent. The reaction mixture in an inert organic solvent is oxidized with an oxidizing agent to decompose quinhydrone or quinhydrone derivative produced by said Diels-Alder reaction and the crystallized hydroanthraquinones are separated from said inert organic solvent.Type: GrantFiled: December 9, 1980Date of Patent: January 18, 1983Assignee: Kawasaki Kasei Chemicals Ltd.Inventors: Tatsuyoshi Komatsu, Kenji Usui, Shigeaki Numata
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Patent number: 4363165Abstract: A wire harness manufactured by a new method and a new apparatus is provided. A covered wire paid out from a selected one of reels is extended in a predetermined lay-out and fixed. The thus fixed wire is cut-off from the reel. Then, another wire is paid out from another reel for arranging it in a juxtaposing relation to the previously laid-out wire and cut off from the reel. After repeating the above steps, the arranged wires are tied up to form a wire harness. There is also provided a device which puts the above method into practice, thereby reducing complicated assorting work involved in the manufacture of a wire harness. A method and a device for automatically uncovering end portions of each wire of the wire harness and attaching terminals thereto are also provided to greatly increasing the productivity.Type: GrantFiled: January 8, 1981Date of Patent: December 14, 1982Assignee: Yazaki CorporationInventors: Yoshitsugu Suzuki, Syogo Iizuka, Shigeo Kajiyama, Kenji Usui, Masahiro Kobayashi
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Patent number: 4360962Abstract: A wire harness manufactured by a new method and a new apparatus is provided. A covered wire paid out from a selected one of reels is extended in a predetermined lay-out and fixed. The thus fixed wire is cut-off from the reel. Then, another wire is paid out from another reel for arranging it in a juxtaposing relation to the previously laid-out wire and cut off from the reel. After repeating the above steps, the arranged wires are tied up to form a wire harness. There is also provided a device which puts the above method into practice, thereby reducing complicated assorting work involved in the manufacture of a wire harness. A method and a device for automatically uncovering end portions of each wire of the wire harness and attaching terminals thereto are also provided to greatly increasing the productivity.Type: GrantFiled: January 8, 1981Date of Patent: November 30, 1982Assignee: Yazaki CorporationInventors: Yoshitsugu Suzuki, Syogo Iizuka, Shigeo Kajiyama, Kenji Usui, Masahiro Kobayashi
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Patent number: 4317705Abstract: A method and an apparatus for automatic measurement of a concentration of an oxidant or a reductant comprisesa solid electrode placed in an electrolytic cell in which a solution is flowed as a laminar flow;a potentiostat for measuring said concentration of an oxidant or a reductant;an electric potential sweeping device which is a continuous functional wave generator connecting to said potentiostat; andsaid continuous functional wave generator being used for washing said solid electrode by applying an alternating rectangular or pulse voltage having a frequency of 40 to 0.1 Hz.The working solid disk electrode is cleaned by alternately oscillating a potential in a range of the anode and cathode potentials for causing an electrolysis of water.Type: GrantFiled: January 5, 1981Date of Patent: March 2, 1982Assignee: Nissan Engineering Ltd.Inventors: Sumio Hamada, Kenji Usui, Takeshi Noguchi
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Patent number: 4202828Abstract: In a process for separation of naphthoquinone and phthalic acid from an aqueous slurry prepared by contacting a reaction mixture gas formed by a catalytic vapor phase oxidation of naphthalene with an aqueous medium, the decomposition of naphthoquinone is prevented and phthalic acid is substantially separated by adding a base to the aqueous slurry so as to neutralize only sulfuric acid component and maleic acid component without substantially neutralizing phthalic acid component and heating the aqueous slurry to dissolve phthalic acid to form a slurry of naphthoquinone in an aqueous solution of phthalic acid and extracting naphthoquinone with a solvent while preventing a crystallization of phthalic acid.A pH of the aqueous slurry is adjusted in a range of 1.2 to 2.5 before the heat dissolution of phthalic acid and the extraction of naphthoquinone.Type: GrantFiled: January 10, 1978Date of Patent: May 13, 1980Assignee: Kawasaki Kasei Chemicals LimitedInventors: Ryo Matsuura, Tatsuyoshi Komatsu, Yukio Nomiyama, Kenji Usui
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Patent number: 4016533Abstract: A device for warning of the occurrence of excessive wear on the brake lining of a brake for a vehicle, in which a detecting element for detecting an increase in the amount of wear on the lining from a predetermined value is mounted on a rear plate supporting the lining, a part of the detecting element projects from the rear plate to the outside of the brake, and a metallic cylindrical cover is fixed to the rear plate so as to cover said projecting part of the detecting element, thereby preventing foreign material from contacting the detecting element when the vehicle is in operation.Type: GrantFiled: October 21, 1974Date of Patent: April 5, 1977Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Masakazu Ishikawa, Sadayoshi Ito, Hiroyuki Oka, Kennoske Iida, Kenji Usui, Masayoshi Asaba