Patents by Inventor Seiji Suga
Seiji Suga 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: 8809602Abstract: A method of the present invention, for producing an iodizing agent, includes the step of electrolyzing iodine molecules in a solution by using an acid as a supporting electrolyte. This realizes (i) a method of producing an iodine cation suitable for use as an iodizing agent that does not require a sophisticated separation operation after iodizing reaction is completed, and (ii) an electrolyte used in the method. Further, a method of the present invention, for producing an aromatic iodine compound, includes the step of causing an iodizing agent, and an aromatic compound whose nucleus has one or more substituent groups and two or more hydrogen atoms, to react with each other under the presence of a certain ether compound. This realizes such a method of producing an aromatic iodine compound that position selectivity in iodizing reaction of an aromatic compound is improved.Type: GrantFiled: January 30, 2013Date of Patent: August 19, 2014Assignees: Japan Science and Technology Agency, Nippoh Chemicals Co., Ltd.Inventors: Junichi Yoshida, Seiji Suga, Kazuhide Kataoka, Koji Midorikawa, Yuji Hagiwara
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Patent number: 8648223Abstract: A method of the present invention, for producing an iodizing agent, includes the step of electrolyzing iodine molecules in a solution by using an acid as a supporting electrolyte. This realizes (i) a method of producing an iodine cation suitable for use as an iodizing agent that does not require a sophisticated separation operation after iodizing reaction is completed, and (ii) an electrolyte used in the method. Further, a method of the present invention, for producing an aromatic iodine compound, includes the step of causing an iodizing agent, and an aromatic compound whose nucleus has one or more substituent groups and two or more hydrogen atoms, to react with each other under the presence of a certain ether compound. This realizes such a method of producing an aromatic iodine compound that position selectivity in iodizing reaction of an aromatic compound is improved.Type: GrantFiled: January 30, 2013Date of Patent: February 11, 2014Assignees: Japan Science and Technology Agency, Nippoh Chemicals Co., Ltd.Inventors: Junichi Yoshida, Seiji Suga, Kazuhide Kataoka, Koji Midorikawa, Yuji Hagiwara
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Patent number: 8383868Abstract: A method of the present invention, for producing an iodizing agent, includes the step of electrolyzing iodine molecules in a solution by using an acid as a supporting electrolyte. This realizes (i) a method of producing an iodine cation suitable for use as an iodizing agent that does not require a sophisticated separation operation after iodizing reaction is completed, and (ii) an electrolyte used in the method. Further, a method of the present invention, for producing an aromatic iodine compound, includes the step of causing an iodizing agent, and an aromatic compound whose nucleus has one or more substituent groups and two or more hydrogen atoms, to react with each other under the presence of a certain ether compound. This realizes such a method of producing an aromatic iodine compound that position selectivity in iodizing reaction of an aromatic compound is improved.Type: GrantFiled: March 7, 2008Date of Patent: February 26, 2013Assignees: Japan Science and Technology Agency, Nippoh Chemicals Co., Ltd.Inventors: Junichi Yoshida, Seiji Suga, Kazuhide Kataoka, Koji Midorikawa, Yuji Hagiwara
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Patent number: 7827949Abstract: A variable valve timing control apparatus employs a five-blade vane member fixedly connected to a camshaft end and rotatably disposed in a phase-converter housing formed integral with a sprocket driven by an engine crankshaft. Five phase-retard chambers and five phase-advance chambers are defined by five blades of the vane member and the housing, for creating a phase change of the vane member relative to the housing. A circumferential width of each of a first pair of blades, located on both sides of a first blade having a maximum circumferential width, is dimensioned to be less than a circumferential width of each of a second pair of blades, circumferentially spaced apart from the first blade rather than the first pair. The circumferential width of each of the second pair of blades is dimensioned to be less than the maximum circumferential width of the first blade.Type: GrantFiled: June 24, 2008Date of Patent: November 9, 2010Assignee: Hitachi, Ltd.Inventors: Seiji Suga, Tomoya Tsukada
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Publication number: 20100105969Abstract: A method of the present invention, for producing an iodizing agent, includes the step of electrolyzing iodine molecules in a solution by using an acid as a supporting electrolyte. This realizes (i) a method of producing an iodine cation suitable for use as an iodizing agent that does not require a sophisticated separation operation after iodizing reaction is completed, and (ii) an electrolyte used in the method. Further, a method of the present invention, for producing an aromatic iodine compound, includes the step of causing an iodizing agent, and an aromatic compound whose nucleus has one or more substituent groups and two or more hydrogen atoms, to react with each other under the presence of a certain ether compound. This realizes such a method of producing an aromatic iodine compound that position selectivity in iodizing reaction of an aromatic compound is improved.Type: ApplicationFiled: March 7, 2008Publication date: April 29, 2010Inventors: Junichi Yoshida, Seiji Suga, Kazuhide Kataoka, Koji Midorikawa, Yuji Hagiwara
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Patent number: 7581519Abstract: A plurality of advanced angle chamber oil paths communicated to advanced angle hydraulic chambers and a plurality of retarded angle chamber oil paths communicated to retarded angle hydraulic chambers according to a change in rotating angle of a cam shaft are provided. The plurality of advanced angle chamber oil paths and the plurality of retarded angle chamber oil paths, respectively, are switched between communication and cut-off according to a rotating angle of the cam shaft. When torque in the direction of advanced angle acts in an advanced angle mode for phase shifting in the direction of advanced angle, the advanced angle hydraulic chambers are caused to communicate to a hydraulic power source and the retarded angle hydraulic chambers are caused to communicate to a drain.Type: GrantFiled: August 7, 2007Date of Patent: September 1, 2009Assignee: Hitachi, Ltd.Inventors: Isao Hayase, Seiji Suga, Yoshinori Ichinosawa, Tomoya Tsukada
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Patent number: 7520260Abstract: In a multi-stage fuel-injection internal combustion engine employing a fuel injection system and a variable valve actuation system, engine valve timings are variably controlled depending on engine operating conditions. An electronic engine control unit is configured to execute cooperative control of the timing of sub-injection, injected before main injection, responsively to intake valve closure timing, and also to execute cooperative control of the timing of sub-injection, injected after the-main injection, responsively to exhaust valve open timing.Type: GrantFiled: September 14, 2006Date of Patent: April 21, 2009Assignee: Hitachi, Ltd.Inventors: Makoto Nakamura, Tomio Hokari, Seinosuke Hara, Seiji Suga, Masahiko Watanabe
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Patent number: 7514589Abstract: The present invention is directed to provide a means, which enables production of a product superior in color tone in high yield by using an easy-to-handle and highly safe technique, in a method for producing an aromatic iodide. The present invention relates to a method for producing an aromatic iodide, characterized in that an aromatic compound and an active iodinating agent are fed into a flow reactor equipped with a high-speed mixer and hydrogen atom on the aromatic ring of said aromatic compound is continuously substituted by iodine atom.Type: GrantFiled: December 28, 2005Date of Patent: April 7, 2009Assignees: Nippoh Chemicals Co., Ltd., Kyoto UniversityInventors: Koji Midorikawa, Hiroshi Takahoso, Junichi Yoshida, Seiji Suga
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Publication number: 20090034362Abstract: There is provided a microdevice which supplies two or more kinds of fluids flowed into itself independently toward a joining region respectively, and which discharges those fluids from the joining region. The microdevice is constituted by a supply channel which supplies each fluid flowed into the microdevice toward the joining region and a discharge channel which discharges the joined fluid from the joining region toward outside of the microdevice, in a manner that a supply channel which supplies at least one kind of the fluid has a plurality of subchannels which supply the fluid supplied into the microdevice toward the joining region, and those subchannels and supply channels are formed so that at least one central axis of the plurality of subchannels and at least one central axis of the supply channel which supplies at least one kind of fluid other than the kind that the subchannel supplies or of the subchannel intersect at one point.Type: ApplicationFiled: September 29, 2005Publication date: February 5, 2009Applicant: FUJIFILM CORPORATIONInventors: Kazuhiro Mae, Junichi Yoshida, Seiji Suga, Tatsuya Kawaguchi, Jun Tanabe, Noboru Daito, Hideharu Nagasawa, Hideyuki Nomura, Shigeki Hikage, Kunio Yube
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Patent number: 7478614Abstract: In a variably operated valve system for a compression ignition engine, an adjustment mechanism is controlled by means of a control section to detach an intake valve closure timing from a bottom dead center in accordance with an engine driving condition, and an engine start securing section guarantees an engine start even at least one of cases during a failure in the control section, during a stop of the engine, and during a start of the engine.Type: GrantFiled: March 6, 2006Date of Patent: January 20, 2009Assignee: Hitachi, Ltd.Inventors: Makoto Nakamura, Seinosuke Hara, Seiji Suga, Masahiko Watanabe, Tomio Hokari
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Patent number: 7444971Abstract: A valve timing control apparatus is adapted to an exhaust valve side of an internal combustion engine. A vane member is arranged to rotate with a camshaft relative to a timing sprocket member. The vane member is rotated at low speed engine operation dominantly by a camshaft-torque actuation mechanism and at high speed engine operation dominantly by a hydraulic actuation mechanism. The camshaft-torque actuation mechanism is actuated by an alternating torque of the camshaft, whereas the hydraulic actuation mechanism is actuated by a fluid pump. The camshaft-torque actuation mechanism and hydraulic actuation mechanism are controlled independently of each other.Type: GrantFiled: February 8, 2007Date of Patent: November 4, 2008Inventors: Seiji Suga, Tomoya Tsukada
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Publication number: 20080264367Abstract: A variable valve timing control apparatus employs a five-blade vane member fixedly connected to a camshaft end and rotatably disposed in a phase-converter housing formed integral with a sprocket driven by an engine crankshaft. Five phase-retard chambers and five phase-advance chambers are defined by five blades of the vane member and the housing, for creating a phase change of the vane member relative to the housing. A circumferential width of each of a first pair of blades, located on both sides of a first blade having a maximum circumferential width, is dimensioned to be less than a circumferential width of each of a second pair of blades, circumferentially spaced apart from the first blade rather than the first pair. The circumferential width of each of the second pair of blades is dimensioned to be less than the maximum circumferential width of the first blade.Type: ApplicationFiled: June 24, 2008Publication date: October 30, 2008Inventors: Seiji Suga, Tomoya Tsukada
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Patent number: 7444254Abstract: A valve timing control apparatus is adapted to an exhaust valve side of an internal combustion engine. A vane member is arranged to rotate with a camshaft relative to a timing sprocket member. The vane member is rotated at low speed engine operation dominantly by a camshaft-torque actuation mechanism and at high speed engine operation dominantly by a hydraulic actuation mechanism. The camshaft-torque actuation mechanism is actuated by an alternating torque of the camshaft, whereas the hydraulic actuation mechanism is actuated by a fluid pump. The vane member includes a first vane arranged to operate in the camshaft-torque actuation mechanism and a second vane arranged to operate in the hydraulic actuation mechanism. The first vane has a shorter radial length and a smaller pressure-receiving area than the second vane.Type: GrantFiled: November 1, 2006Date of Patent: October 28, 2008Assignee: Hitachi, Ltd.Inventors: Tomoya Tsukada, Seiji Suga, Hideaki Nakamura
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Device for Controlling Phase of Cam Shaft in Internal Combustion Engine and Phase Controlling device
Publication number: 20080251042Abstract: A device for controlling a phase of a cam shaft in an internal combustion engine has a structure which can return a phase of a cam shaft to an intermediate position on the basis of its own power by utilizing a variable torque applied to a cam shaft at a time of starting an engine so as to lock, and has a high practicability and mass production performance.Type: ApplicationFiled: August 7, 2007Publication date: October 16, 2008Applicant: Hitachi, Ltd.Inventors: Isao HAYASE, Seiji Suga, Yoshinori Ichinosawa, Toshiyuki Kaneko -
Patent number: 7424875Abstract: A parallel guide portion as an integral structure of a sprocket and a vane, as well as a slant guide portion, are arranged alternately on the same circumference, with circumferential gaps being formed between said guide portion and the parallel guide portion, said guide portion having a shape such that the circumferential gaps become smaller in one axial direction of a cam shaft. Wedge members are disposed in the circumferential gaps respectively and are moved in one axial direction to fill up the circumferential gaps, thereby fixing the phase between the sprocket and the vane into a locked state. The wedge angle of each wedge member is set sufficiently small and, by utilizing varying torques acting on the cam shaft, said members are each moved and locked in one axial direction with a spring. Said members are actuated in an opposite axial direction with oil pressure to release the locked state, thereby permitting a phase angle control.Type: GrantFiled: January 18, 2007Date of Patent: September 16, 2008Assignee: Hitachi, Ltd.Inventors: Isao Hayase, Atsushi Watanabe, Seiji Suga, Masahiko Watanabe, Yoshinori Ichinosawa, Takanori Sawada
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Patent number: 7409937Abstract: A hydraulic control system for an internal combustion engine, includes a driven mechanism driven by hydraulic pressure fed through a flowing passage change-over valve. The flowing passage change-over valve includes a valve body formed with a plurality of ports which are respectively communicated with the supply passage and the oil passage, and a spool valve body slidably disposed in the valve body to open and close the plurality of ports, the ports including a supplying port communicated with the supplying passage. The maximum cross-sectional area of the supplying port is larger than a minimum cross-sectional area of the supplying passage. The flowing passage change-over valve is supplied with electric current to heat hydraulic fluid kept in the flowing passage change-over valve so as to lower a viscosity of the hydraulic fluid.Type: GrantFiled: October 27, 2006Date of Patent: August 12, 2008Assignee: Hitachi, Ltd.Inventors: Keiji Hisahara, Toshiro Ichikawa, Seiji Suga, Osamu Fujita, Takanori Sawada
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Patent number: 7406935Abstract: A variable valve timing control apparatus employs a five-blade vane member fixedly connected to a camshaft end and rotatably disposed in a phase-converter housing formed integral with a sprocket driven by an engine crankshaft. Five phase-retard chambers and five phase-advance chambers are defined by five blades of the vane member and the housing, for creating a phase change of the vane member relative to the housing. A circumferential width of each of a first pair of blades, located on both sides of a first blade having a maximum circumferential width, is dimensioned to be less than a circumferential width of each of a second pair of blades, circumferentially spaced apart from the first blade rather than the first pair. The circumferential width of each of the second pair of blades is dimensioned to be less than the maximum circumferential width of the first blade.Type: GrantFiled: July 19, 2007Date of Patent: August 5, 2008Assignee: Hitachi, Ltd.Inventors: Seiji Suga, Tomoya Tsukada
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Publication number: 20080146853Abstract: The present invention is directed to provide a means, which enables production of a product superior in color tone in high yield by using an easy-to-handle and highly safe technique, in a method for producing an aromatic iodide. The present invention relates to a method for producing an aromatic iodide, characterized in that an aromatic compound and an active iodinating agent are fed into a flow reactor equipped with a high-speed mixer and hydrogen atom on the aromatic ring of said aromatic compound is continuously substituted by iodine atom.Type: ApplicationFiled: December 28, 2005Publication date: June 19, 2008Applicants: NIPPOH CHEMICALS CO., LTD., KYOTO UNIVERSITYInventors: Koji Midorikawa, Hiroshi Takahoso, Junichi Yoshida, Seiji Suga
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Publication number: 20080047516Abstract: A plurality of advanced angle chamber oil paths communicated to advanced angle hydraulic chambers and a plurality of retarded angle chamber oil paths communicated to retarded angle hydraulic chambers according to a change in rotating angle of a cam shaft are provided. The plurality of advanced angle chamber oil paths and the plurality of retarded angle chamber oil paths, respectively, are switched between communication and cut-off according to a rotating angle of the cam shaft. When torque in the direction of advanced angle acts in an advanced angle mode for phase shifting in the direction of advanced angle, the advanced angle hydraulic chambers are caused to communicate to a hydraulic power source and the retarded angle hydraulic chambers are caused to communicate to a drain.Type: ApplicationFiled: August 7, 2007Publication date: February 28, 2008Applicant: Hitachi, Ltd.Inventors: Isao HAYASE, Seiji Suga, Yoshinori Ichinosawa, Tomoya Tsukada
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Publication number: 20080022952Abstract: In valve control apparatus for an internal combustion engine and its assembling method, a positioning section is interposed between a predetermined position of a housing member at which a shoe is positioned so as to be opposed against a side surface of a vane in which a lock piston is arranged and one of a front cover and a rear plate on which a lock hole is formed, to perform a housing circumferential directional positioning of the lock piston and the lock hole.Type: ApplicationFiled: September 25, 2007Publication date: January 31, 2008Inventors: Seiji Suga, Tomoya Tsukada