Patents by Inventor Jun-ichi Sugiyama
Jun-ichi Sugiyama 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: 20240117531Abstract: The present invention provides a microwave heating unit formed by comprising: a furnace body in which a fiber inlet and a fiber outlet are formed in a tube wall of a waveguide; and a microwave oscillator which guides microwaves into the waveguide. The microwave heating unit is characterized in that: continuous fibers to be heated are configured to have an inclination of an angle ?° with respect to the tube shaft of the waveguide and to travel therein; the angle ?° is 0.Type: ApplicationFiled: February 1, 2022Publication date: April 11, 2024Applicant: TEIJIN LIMITEDInventors: Yoshinori SUZUKI, Hiroaki ZUSHI, Jun-ichi SUGIYAMA
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Patent number: 10260173Abstract: The problem of the present invention is to provide a carbon fiber manufacturing device in which fiber to be carbonized is irradiated with microwaves and thereby heated, wherein the carbon fiber manufacturing device is compact and capable of performing carbonization at atmospheric pressure without requiring an electromagnetic wave absorber or other additives or preliminary carbonization through external heating. This carbon fiber manufacturing device (200) includes: a cylindrical furnace (27) comprising a cylindrical waveguide in which one end is closed, a fiber outlet (27b) being formed in the one end of the cylindrical waveguide and a fiber inlet (27a) being formed in the other end of the cylindrical waveguide; a microwave oscillator (21) for introducing microwaves into the cylindrical furnace (27); and a connection waveguide (22) having one end connected to the microwave oscillator (21) side and the other end connected to one end of the cylindrical furnace (27).Type: GrantFiled: March 26, 2015Date of Patent: April 16, 2019Assignees: TEIJIN LIMITED, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, THE UNIVERSITY OF TOKYOInventors: Hiroaki Zushi, Takaya Suzuki, Jun-ichi Sugiyama
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Publication number: 20170327974Abstract: The problem of the present invention is to provide a carbon fiber manufacturing device in which fiber to be carbonized is irradiated with microwaves and thereby heated, wherein the carbon fiber manufacturing device is compact and capable of performing carbonization at atmospheric pressure without requiring an electromagnetic wave absorber or other additives or preliminary carbonization through external heating. This carbon fiber manufacturing device (200) includes: a cylindrical furnace (27) comprising a cylindrical waveguide in which one end is closed, a fiber outlet (27b) being formed in the one end of the cylindrical waveguide and a fiber inlet (27a) being formed in the other end of the cylindrical waveguide; a microwave oscillator (21) for introducing microwaves into the cylindrical furnace (27); and a connection waveguide (22) having one end connected to the microwave oscillator (21) side and the other end connected to one end of the cylindrical furnace (27).Type: ApplicationFiled: March 26, 2015Publication date: November 16, 2017Applicants: THE UNIVERSITY OF TOKYO, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Hiroaki ZUSHI, Takaya SUZUKI, Jun-ichi SUGIYAMA
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Patent number: 8022241Abstract: A process for producing a carbonic ester, characterized in that an aromatic monohydroxy compound or an aliphatic monohydroxy compound is subjected to oxidative carbonylation with carbon monoxide and oxygen in the presence of a palladium catalyst using a compound having a carbonate bond as a reaction solvent. A process for producing a polycarbonate, characterized in that an aromatic dihydroxy compound or an aliphatic dihydroxy compound is subjected to oxidative carbonylation with carbon monoxide and oxygen in the presence of a palladium catalyst using a compound having a carbonate bond as a reaction solvent is also described. The carbonic ester can be produced with a higher yield and at a higher reaction rate and, also, a polycarbonate having a higher molecular weight as compared with the conventional method can be produced with a higher yield and at a higher reaction rate.Type: GrantFiled: July 30, 2009Date of Patent: September 20, 2011Assignees: National Institute of Advanced Industrial Science and Technology, Idemitsu Kosan Co., Ltd.Inventors: Masaya Okamoto, Jun-ichi Sugiyama, Mitsuru Ueda
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Patent number: 7598411Abstract: A process for producing a carbonic ester, characterized in that an aromatic monohydroxy compound or an aliphatic monohydroxy compound is subjected to oxidative carbonylation with carbon monoxide and oxygen in the presence of a palladium catalyst using a compound having a carbonate bond as a reaction solvent. A process for producing a polycarbonate, characterized in that an aromatic dihydroxy compound or an aliphatic dihydroxy compound is subjected to oxidative carbonylation with carbon monoxide and oxygen in the presence of a palladium catalyst using a compound having a carbonate bond as a reaction solvent is also described. The carbonic ester can be produced with a higher yield and at a higher reaction rate and, also, a polycarbonate having a higher molecular weight as compared with the conventional method can be produced with a higher yield and at a higher reaction rate.Type: GrantFiled: March 27, 2003Date of Patent: October 6, 2009Assignees: National Institute of Advanced Industrial Science and Technology, Idemitsu Kosan Co., Ltd.Inventors: Masaya Okamoto, Jun-ichi Sugiyama, Mitsuru Ueda
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Patent number: 7390868Abstract: Provided are a catalyst for producing polycarbonate comprising a reaction product obtained by reacting (a) a catalyst carrier containing nitrogen or phosphorus with (b) a palladium compound and (c) a metal compound having a redox catalytic ability and a production process for polycarbonate, comprising a first step in which an aromatic dihydroxy compound and monovalent phenol are reacted with carbon monoxide and oxygen to produce a polycarbonate prepolymer and a second step in which the above polycarbonate prepolymer is subjected to solid state polymerization to produce polycarbonate, wherein the above catalyst is used in the first step described above.Type: GrantFiled: May 26, 2004Date of Patent: June 24, 2008Assignees: National Institute of Advanced Industrial Science and Technology, Idemitsu Kosan Co., Ltd.Inventors: Masaya Okamoto, Jun-ichi Sugiyama, Mitsuru Ueda
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Publication number: 20070043199Abstract: Provided are a catalyst for producing polycarbonate comprising a reaction product obtained by reacting (a) a catalyst carrier containing nitrogen or phosphorus with (b) a palladium compound and (c) a metal compound having a redox catalytic ability and a production process for polycarbonate, comprising a first step in which an aromatic dihydroxy compound and monovalent phenol are reacted with carbon monoxide and oxygen to produce a polycarbonate prepolymer and a second step in which the above polycarbonate prepolymer is subjected to solid state polymerization to produce polycarbonate, wherein the above catalyst is used in the first step described above.Type: ApplicationFiled: May 26, 2004Publication date: February 22, 2007Applicant: Idemitsu Kosan Co., Ltd.Inventors: Masaya Okamoto, Jun-ichi Sugiyama, Mitsuru Ueda
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Publication number: 20050234259Abstract: A process for producing a carbonic ester, characterized in that an aromatic monohydroxy compound or an aliphatic monohydroxy compound is subjected to oxidative carbonylation with carbon monoxide and oxygen in the presence of a palladium catalyst using a compound having a carbonate bond as a reaction solvent. A process for producing a polycarbonate, characterized in that an aromatic dihydroxy compound or an aliphatic dihydroxy compound is subjected to oxidative carbonylation with carbon monoxide and oxygen in the presence of a palladium catalyst using a compound having a carbonate bond as a reaction solvent is also described. The carbonic ester can be produced with a higher yield and at a higher reaction rate and, also, a polycarbonate having a higher molecular weight as compared with the conventional method can be produced with a higher yield and at a higher reaction rate.Type: ApplicationFiled: March 27, 2003Publication date: October 20, 2005Applicants: NATIONAL INSTIT OF ADVANCE INDUST SCIENCE AND TECH, Idemitsu Kosan Co., LtdInventors: Masaya Okamoto, Jun-ichi Sugiyama, Kazuhiko Takeuchi, Mitsuru Ueda
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Patent number: 4276961Abstract: A mast and carriage assembly for an industrial truck which includes a stationary upright assembly (12) a movable upright assembly (14) and a telescopic cylinder (18) which is suspended between the stationary upright assembly and a load carriage (16) by a system of reeved load chains (94). The cylinder and its extensible ram assembly (69) are guided for vertical movement relative to the upright assemblies, and stop members (100) mounted on the load carriage are engageable with guide members (80) associated with the ram assembly to limit vertical movement of the load carriage relative to the ram assembly.Type: GrantFiled: March 12, 1979Date of Patent: July 7, 1981Assignee: Eaton CorporationInventor: Jun-ichi Sugiyama