Patents by Inventor Masayasu Ishibashi
Masayasu Ishibashi 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: 9682896Abstract: An object of the present invention is to provide a method of producing a corresponding olefin such as propylene with a high activity and a high selectivity even in a high LHSV range by an intramolecular dehydration reaction of an alcohol such as isopropyl alcohol. The present invention provides a method of producing an olefin represented by General Formula (II) below from an alcohol represented by General Formula (I) below, which method uses, as a dehydration catalyst, a chemically treated silica gel (X) in which an aluminum compound is supported onto a silica gel (A) with an average fine pore diameter of 10 to 50 nm in the amount of 1,000 to 10,000 ppm by weight in terms of aluminum element. (In General Formulae (I) and (II), R1 is selected from alkyl groups of 1 to 5 carbon atoms and R2 is selected from a hydrogen atom and alkyl groups of 1 to 5 carbon atoms.Type: GrantFiled: June 3, 2014Date of Patent: June 20, 2017Assignee: MITSUI CHEMICALS, INC.Inventor: Masayasu Ishibashi
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Patent number: 9567266Abstract: The invention has objects of providing an olefin production method which can produce an olefin with high efficiency by the dehydration reaction of an alcohol even in the presence of a ketone without the occurrence of side reactions such as the Aldol condensation of the ketone, as well as providing an olefin production method which can produce an olefin with high activity and high selectivity in a single reaction step by directly reacting a corresponding ketone and hydrogen.Type: GrantFiled: December 20, 2012Date of Patent: February 14, 2017Assignee: MITSUI CHEMICALS, INC.Inventors: Masayasu Ishibashi, Tsuneyuki Ohkubo
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Publication number: 20160122257Abstract: An object of the present invention is to provide a method of producing a corresponding olefin such as propylene with a high activity and a high selectivity even in a high LHSV range by an intramolecular dehydration reaction of an alcohol such as isopropyl alcohol. The present invention provides a method of producing an olefin represented by General Formula (II) below from an alcohol represented by General Formula (I) below, which method uses, as a dehydration catalyst, a chemically treated silica gel (X) in which an aluminum compound is supported onto a silica gel (A) with an average fine pore diameter of 10 to 50 nm in the amount of 1,000 to 10,000 ppm by weight in terms of aluminum element. (In General Formulae (I) and (II), R1 is selected from alkyl groups of 1 to 5 carbon atoms and R2 is selected from a hydrogen atom and alkyl groups of 1 to 5 carbon atoms.Type: ApplicationFiled: June 3, 2014Publication date: May 5, 2016Applicant: Mitsui Chemicals, Inc.Inventor: Masayasu ISHIBASHI
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Publication number: 20160052233Abstract: In a composite lightweight fitting, at least one reinforced fiber layer (3a) of reinforced fiber layers (3) includes a reinforced fiber bundle (4) formed by aligning a large number of reinforced fibers into a belt-like shape, the reinforced fiber bundle (4) including a round portion (4a) arranged along a periphery of a through-hole (2). The round portion (4a) of the reinforced fiber bundle (4) is twisted.Type: ApplicationFiled: February 19, 2014Publication date: February 25, 2016Inventors: Shun KAIGOME, Masayasu ISHIBASHI, Tetsuro HIROKAWA, Takeshi TANAMURA
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Patent number: 8991641Abstract: A toroidal pressure vessel having extremely high pressure resistance has laminated latitudinal reinforcing fiber layers to improve a strength in a latitudinal direction of the pressure vessel. Moreover, putting reinforcing fibers constituting those laminated latitudinal reinforcing fiber layers in continuity enables further improvement of strength in the latitudinal direction of the pressure vessel, for example compared with a case where the reinforcing fibers are divided for each layer.Type: GrantFiled: April 15, 2011Date of Patent: March 31, 2015Assignees: Mitsubishi Heavy Industries, Ltd., Shikibo Ltd.Inventors: Tetsuya Ozawa, Nozomu Kawasetsu, Kentaro Shindo, Mitsuru Kondo, Akira Fukushima, Masayasu Ishibashi, Takeshi Tanamura, Kazuo Nakajima, Hiroshi Sakai, Tetsuro Hirokawa
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Publication number: 20140371502Abstract: The invention has objects of providing an olefin production method which can produce an olefin with high efficiency by the dehydration reaction of an alcohol even in the presence of a ketone without the occurrence of side reactions such as the Aldol condensation of the ketone, as well as providing an olefin production method which can produce an olefin with high activity and high selectivity in a single reaction step by directly reacting a corresponding ketone and hydrogen.Type: ApplicationFiled: December 20, 2012Publication date: December 18, 2014Inventors: Masayasu Ishibashi, Tsuneyuki Ohkubo
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Patent number: 8552239Abstract: A novel olefin production process is provided which can be established as an industrial and practical process capable of producing olefins by directly reacting a ketone and hydrogen in a single reaction step. In particular, a novel olefin production process is provided in which propylene is obtained with high selectivity by directly reacting acetone and hydrogen. The olefin production process according to the present invention includes reacting a ketone and hydrogen in the presence of at least one dehydration catalyst and a silver-containing catalyst, and the at least one dehydration catalyst is selected from metal oxide catalysts containing a Group 6 element, zeolites, aluminas and heteropoly acid salts in which part or all the protons in heteropoly acids are exchanged with metal cations.Type: GrantFiled: March 12, 2010Date of Patent: October 8, 2013Assignee: Mitsui Chemicals, Inc.Inventors: Tsuneyuki Ohkubo, Kenji Fujiwara, Terunori Fujita, Masayasu Ishibashi
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Patent number: 8546633Abstract: A method for producing an alkylated aromatic compound includes a step (i) of producing a reaction product (a1) containing the alkylated aromatic compound and water by the reaction of an aromatic compound, a ketone, and hydrogen using a metal component containing at least one metallic element of copper, nickel, cobalt, and rhenium and a solid acid substance; a step (ii) of forming a dehydrated product (a2) from at least a portion of the reaction product (a1) by removing at least a portion of the water in the reaction product (a1); and a step (iii) of producing a reaction product (a3) containing the alkylated aromatic compound by bringing at least a portion of the dehydrated product (a2) into contact with a solid acid substance.Type: GrantFiled: October 22, 2009Date of Patent: October 1, 2013Assignee: Mitsui Chemicals, Inc.Inventors: Kenji Fujiwara, Tsuneyuki Ohkubo, Terunori Fujita, Shinobu Aoki, Masayasu Ishibashi, Masao Imai, Kozo Yasuda
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Patent number: 8536394Abstract: According to a process of the invention, a ketone, an aromatic compound and hydrogen as starting materials are reacted together in a single reaction step to produce an alkylaromatic compound in high yield. A process for producing phenols in the invention includes a step of performing the above alkylation process and does not increase the number of steps compared to the conventional cumene process. The process for producing alkylated aromatic compounds includes reacting an aromatic compound such as benzene, a ketone such as acetone and hydrogen in the presence of a solid acid substance, preferably a zeolite, and a silver-containing catalyst.Type: GrantFiled: March 12, 2010Date of Patent: September 17, 2013Assignee: Mitsui Chemicals, Inc.Inventors: Tsuneyuki Ohkubo, Shinobu Aoki, Masayasu Ishibashi, Masao Imai, Terunori Fujita, Kenji Fujiwara
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Publication number: 20120024866Abstract: Provided is a toroidal pressure vessel having extremely high pressure resistance. Laminating latitudinal reinforcing fiber layers (32) enables to improve a strength in a latitudinal direction of a pressure vessel (1). Moreover, putting reinforcing fibers (32a) constituting those laminated latitudinal reinforcing fiber layers (32) in continuity enables to further improve the strength in the latitudinal direction of the pressure vessel (1), for example compared with a case where the reinforcing fibers are divided for each layer.Type: ApplicationFiled: April 15, 2011Publication date: February 2, 2012Inventors: Tetsuya Ozawa, Nozomu Kawasetsu, Kentaro Shindo, Mitsuru Kondo, Akira Fukushima, Masayasu Ishibashi, Takeshi Tanamura, Kazuo Nakajima, Hiroshi Sakai, Tetsuro Hirokawa
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Publication number: 20120010453Abstract: A novel olefin production process is provided which can be established as an industrial and practical process capable of producing olefins by directly reacting a ketone and hydrogen in a single reaction step. In particular, a novel olefin production process is provided in which propylene is obtained with high selectivity by directly reacting acetone and hydrogen. The olefin production process according to the present invention includes reacting a ketone and hydrogen in the presence of at least one dehydration catalyst and a silver-containing catalyst, and the at least one dehydration catalyst is selected from metal oxide catalysts containing a Group 6 element, zeolites, aluminas and heteropoly acid salts in which part or all the protons in heteropoly acids are exchanged with metal cations.Type: ApplicationFiled: March 12, 2010Publication date: January 12, 2012Applicant: Mitsui Chemicals, Inc.Inventors: Tsuneyuki Ohkubo, Kenji Fujiwara, Terunori Fujita, Masayasu Ishibashi
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Publication number: 20120004471Abstract: According to a process of the invention, a ketone, an aromatic compound and hydrogen as starting materials are reacted together in a single reaction step to produce an alkylaromatic compound in high yield. A process for producing phenols in the invention includes a step of performing the above alkylation process and does not increase the number of steps compared to the conventional cumene process. The process for producing alkylated aromatic compounds includes reacting an aromatic compound such as benzene, a ketone such as acetone and hydrogen in the presence of a solid acid substance, preferably a zeolite, and a silver-containing catalyst.Type: ApplicationFiled: March 12, 2010Publication date: January 5, 2012Inventors: Tsuneyuki Ohkubo, Shinobu Aoki, Masayasu Ishibashi, Masao Imai, Terunori Fujita, Kenji Fujiwara
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Publication number: 20110201846Abstract: It is an object of the present invention to provide a method for producing an alkylated aromatic compound and a method for producing cumene that can greatly reduce the amount of solid acid substance, and a method for producing phenol including a step of producing cumene by the method for producing cumene.Type: ApplicationFiled: October 22, 2009Publication date: August 18, 2011Applicant: MITSUI CHEMICALS, INC.Inventors: Kenji Fujiwara, Tsuneyuki Ohkubo, Terunori Fujita, Shinobu Aoki, Masayasu Ishibashi, Masao Imai, Kozo Yasuda
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Patent number: 7384585Abstract: A novel process for producing a dry preform for a composite material takes advantage of the fact that a reinforcing filament assembly, when consisting of a fiber reinforcement layer a, formed by stringing a first set of parallel strands of fiber reinforcement over a part or all of the plane within any desired shape along the straight axis 2, and a fiber reinforcement layer b, formed by stringing a second set of parallel strands of fiber reinforcement over the plane at an angle ? with respect to the straight axis 2, such that 0°<?<180°, the part of the reinforcing filament assembly that consists solely of the fiber reinforcement b can be deformed as desired. According to this process, strands c of fiber reinforcement are strung using a fiber reinforcement string jig as shown in FIGS. 8(A) and 8(B). The layers of the strung strands of fiber reinforcement are brought together by a simple means such as stitching.Type: GrantFiled: May 28, 2003Date of Patent: June 10, 2008Assignee: Shikibo Ltd.Inventors: Masayasu Ishibashi, Koichi Hashimoto, Hideki Sakonjo, Akira Iriguchi, Kazunori Morimoto, Takeshi Tanamura, Tetsuro Hirokawa
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Patent number: 7138167Abstract: A preform for a fiber-reinforced composite material including a bent portion along a curved line for bending, a flange portion corresponding to an outer circumferential portion, and a semi-cylindrical portion formed by bending an inner circumferential portion along the curved line for bending located in a flat plane or a curved plane region. The preform is formed from a precursor having a predetermined extension. The outer circumferential portion corresponds to a first region where a first plurality of reinforced fibers is partially disposed in parallel along the curved line for bending. The inner circumferential portion corresponds to a second region constituted solely of a second plurality of reinforced fibers disposed throughout the entire area, so as to intersect the first plurality of reinforced fibers at a predetermined angle in the first region.Type: GrantFiled: August 12, 2002Date of Patent: November 21, 2006Assignee: Shikibo Ltd.Inventors: Hideki Sakonjo, Masayasu Ishibashi, Takeshi Tanamura, Koichi Hashimoto, Tetsuro Hirokawa
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Patent number: 7114319Abstract: A unidirectional three dimensional fiber structure is provided which does not require weaving, displays a high level of interlayer strength and does not suffer from cracking, and which can also be easily produced with any arbitrary cross-section. A unidirectional three dimensional fiber structure is produced by inserting a plurality of long fibers which have been aligned unidirectionally into an inlet at one end of a cylindrical die with a plurality of needle holes in the peripheral walls thereof, and then performing needlepunch through the needle holes while drawing the plurality of long fibers out from an outlet at the opposite end of the cylindrical die.Type: GrantFiled: April 4, 2003Date of Patent: October 3, 2006Assignee: Shikibo Ltd.Inventors: Hideki Sakonjo, Masayasu Ishibashi, Tetsuro Hirokawa, Takeshi Tanamura, Koichi Hashimoto
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Publication number: 20050042410Abstract: Technical Field of the Invention: A structural member required to have a prescribed strength in an aircraft, an automobile, a vessel or a constructed structure, etc., especially in a circular bore portion or a curved portion such as a wing or a body of an aircraft. Technical Problem: A preform for a fiber-reinforced composite material to be used as a structural member of a fiber-reinforced composite material having a curved portion is to be manufactured through a low-cost mass production.Type: ApplicationFiled: August 12, 2002Publication date: February 24, 2005Inventors: Hideki Sakonjo, Masayasu Ishibashi, Takeshi Tanamura, Koichi Hashimoto, Tetsuro Hirokawa
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Publication number: 20040247845Abstract: The present invention provides a fiber base material for constituting a composite material for increasing interlaminar strength (peeling strength, out-of-plane strength, post-impact strength), improving impregnation efficiency of a matrix in a composing process and preventing a resin-rich portion that affects the strength. A fiber base material for constituting a composite material comprising a single layer or a plurality of layers of a solid-shape base material constituted of a woven or knitted continuous fiber, wherein the base material is raised for enhancing interlaminar or bonding plane strength, improving permeability of a matrix at a surface and an interior portion thereof, and increasing plane smoothness.Type: ApplicationFiled: August 2, 2004Publication date: December 9, 2004Inventors: Toshio Abe, Shigeru Nishimiya, Masahiro Shinya, Toshiyasu Fukuoka, Masayasu Ishibashi, Koichi Hashimoto, Takeshi Tanamura, Hideki Sakonjo, Tetsuro Hirokawa
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Publication number: 20040134593Abstract: A novel process for producing a dry preform for a composite material takes advantage of the fact that a reinforcing filament assembly, when consisting of a fiber reinforcement layer a, formed by stringing a first set of parallel strands of fiber reinforcement over a part or all of the plane within any desired shape along the straight axis 2, and a fiber reinforcement layer b, formed by stringing a second set of parallel strands of fiber reinforcement over the plane at an angle &thgr; with respect to the straight axis 2, such that 0°<&thgr;<180°, the part of the reinforcing filament assembly that consists solely of the fiber reinforcement b can be deformed as desired. According to this process, strands c of fiber reinforcement are strung using a fiber reinforcement string jig as shown in FIGS. 8(A) and 8(B). The layers of the strung strands of fiber reinforcement are brought together by a simple means such as stitching.Type: ApplicationFiled: May 28, 2003Publication date: July 15, 2004Inventors: Masayasu Ishibashi, Koichi Hashimoto, Hideki Sakonjo, Akira Iriguchi, Kazunori Morimoto, Takeshi Tanamura, Tetsuro Hirokawa
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Publication number: 20030194528Abstract: A unidirectional three dimensional fiber structure is provided which does not require weaving, displays a high level of interlayer strength and does not suffer from cracking, and which can also be easily produced with any arbitrary cross-section. A unidirectional three dimensional fiber structure is produced by inserting a plurality of long fibers which have been aligned unidirectionally into an inlet at one end of a cylindrical die with a plurality of needle holes in the peripheral walls thereof, and then performing needlepunch through the needle holes while drawing the plurality of long fibers out from an outlet at the opposite end of the cylindrical die.Type: ApplicationFiled: April 4, 2003Publication date: October 16, 2003Inventors: Hideki Sakonjo, Masayasu Ishibashi, Tetsuro Hirokawa, Takeshi Tanamura, Koichi Hashimoto