Patents by Inventor Hayato Ogasawara
Hayato Ogasawara 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: 11752728Abstract: Provided is a laminated substrate wherein a sheet-shaped material with a porosity of 50-99% is laminated onto at least one surface of a prepreg substrate which includes a reinforcing fiber and a thermoplastic resin.Type: GrantFiled: January 26, 2021Date of Patent: September 12, 2023Assignee: Mitsubishi Chemical CorporationInventors: Takeshi Ishikawa, Hayato Ogasawara, Masao Tomioka
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Publication number: 20230139814Abstract: A sheet molding compound according to a first aspect of the present invention comprises: a thickened product of a resin composition comprising a vinyl ester resin, a thickener, a polymerization initiator, a polymerization inhibitor and isobornyl methacrylate; and a reinforcing fiber.Type: ApplicationFiled: June 23, 2022Publication date: May 4, 2023Applicant: Mitsubishi Chemical CorporationInventors: Seiji TSUCHIYA, Hayato OGASAWARA, Yukichi KONAMI, Hiroyuki NAKAO, Shinichirou FURUYA, Yasuhiko NABESHIMA, Atsushi TAKAHASHI
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Publication number: 20220153933Abstract: A polyorganosiloxane with an epoxy group, a curable resin composition, and a cured product having high compatibility with an initiator and another resin is described. The polyorganosiloxane has a low viscosity, a high curing rate, and high adhesiveness and impact resistance. The polyorganosiloxane has an M unit (R1R2R3SiO1/2), a D unit (R4R5SiO2/2), and a Q unit (SiO4/2). A T unit (R6SiO3/2) content of the polyorganosiloxane is 80% or less by mole of total silicon. The epoxy group has a group of formula (2) and a group of formula (3). Here, R8 is an optionally substituted divalent organic group having 1 to 20 carbon atoms, g is 0 or 1, R9 is an optionally substituted divalent organic group having 1 to 20 carbon atoms, h is 0 or 1, 0?i?8, and 0?j?8.Type: ApplicationFiled: February 1, 2022Publication date: May 19, 2022Applicant: Mitsubishi Chemical CorporationInventors: Yuki HARUTA, Hayato OGASAWARA, Shohei HIRASE, Noriaki TERADA, Takumi WATANABE, Shoya YODA
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Publication number: 20210253808Abstract: A heat-curable epoxy resin composition is a mixture in which an epoxy compound represented by formula (al), a polyisocyanate, a bisphenol type liquid epoxy resin and an epoxy resin curing agent are blended. An amount of the epoxy compound, per 100 parts by mass of all the epoxy resin blended in the heat-curable epoxy resin composition, is 5 parts by mass or more.Type: ApplicationFiled: April 29, 2021Publication date: August 19, 2021Applicant: Mitsubishi Chemical CorporationInventors: Hisaya USHIYAMA, Yusuke Watanabe, Natsumi Mukouzaka, Hayato Ogasawara, Akira Ota
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Publication number: 20210230356Abstract: Provided are a sheet molding compound having good handleability and good reinforcing fiber filling properties; and a molded article having good mechanical properties and good heat resistance. The sheet molding compound comprises a thermosetting resin composition and reinforcing fiber bundles, in which the thermosetting resin composition comprises an epoxy resin component (E) comprising a reaction product (1) of the following component (A) and the following component (B), and the following component (C). The molded article is an article obtained by press-molding the sheet molding compound.Type: ApplicationFiled: April 14, 2021Publication date: July 29, 2021Applicant: Mitsubishi Chemical CorporationInventors: Hayato OGASAWARA, Akira OTA, Yasunori MURANO
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Publication number: 20210221969Abstract: Provided is a sheet molding compound which can inhibit the formation of burrs during press molding, enables a matrix resin to exhibit excellent fluidity and excellent quick curing properties during press molding, and makes it possible to obtain a fiber-reinforced composite excellent in mold release properties, mechanical characteristics, and heat resistance. The sheet molding compound of the present invention contains an epoxy resin composition and reinforcing fiber, in which a gel time of the epoxy resin composition is 30 to 140 seconds at 140° C., a temperature at the start of curing reaction of the epoxy resin composition is 70° C. to 115° C., and when b1 represents a viscosity of the epoxy resin composition measured at 30° C. 7 days after the preparation of the composition, and b2 represents a viscosity of the epoxy resin composition measured at 30° C. 14 days after the preparation of the composition, b1 and b2 satisfy b2/b1?5.Type: ApplicationFiled: March 4, 2021Publication date: July 22, 2021Applicant: Mitsubishi Chemical CorporationInventors: Akira OOTA, Hayato OGASAWARA
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Publication number: 20210221998Abstract: A curable resin composition includes a polyether polyol resin represented by general formula (1) and having an epoxy equivalent of 7,000 to 100,000 g/eq, an epoxy resin having a functionality of 3 or more, and an epoxy resin curing agent. Provided is a curable resin composition that is excellent in heat resistance and also excellent in bending resistance in a well-balanced manner and that is applicable in various fields that require heat resistance and toughness, particularly, electrical and electronic fields. n is an integer of 1 or more. A1 and A2 are each a divalent organic group having an aromatic structure and/or an alicyclic structure. B is a hydrogen atom or a glycidyl group.Type: ApplicationFiled: April 6, 2021Publication date: July 22, 2021Applicant: Mitsubishi Chemical CorporationInventors: Yosuke TSUGE, Kotaro NOZAWA, Kenta YAMAMOTO, Hayato OGASAWARA
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Publication number: 20210146653Abstract: Provided is a laminated substrate wherein a sheet-shaped material with a porosity of 50-99% is laminated onto at least one surface of a prepreg substrate which includes a reinforcing fiber and a thermoplastic resin.Type: ApplicationFiled: January 26, 2021Publication date: May 20, 2021Applicant: Mitsubishi Chemical CorporationInventors: Takeshi ISHIKAWA, Hayato OGASAWARA, Masao TOMIOKA
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Patent number: 10919259Abstract: Provided is a laminated substrate wherein a sheet-shaped material with a porosity of 50-99% is laminated onto at least one surface of a prepreg substrate which includes a reinforcing fiber and a thermoplastic resin.Type: GrantFiled: December 5, 2014Date of Patent: February 16, 2021Assignee: Mitsubishi Chemical CorporationInventors: Takeshi Ishikawa, Hayato Ogasawara, Masao Tomioka
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Patent number: 10920009Abstract: The thermosetting resin composition according to an embodiment of the present invention contains a component (A) which is a novolac vinyl ester resin having a hydroxyl group and an ethylenically unsaturated group in the molecule, a component (B) which is an ethylenically unsaturated monomer, and a component (D) which is a polyisocyanate compound, wherein the component (A) has a hydroxyl value of 30-150 mgKOH/g, and the mole number of the hydroxyl group with respect to the mole number of the ethylenically unsaturated group per gram of the component (A) ((the amount of the hydroxyl group [mol/g])/(the amount of the ethylenically unsaturated group [mol/g])) is 0.1-0.8.Type: GrantFiled: October 4, 2018Date of Patent: February 16, 2021Assignee: MITSUBISHI CHEMICAL CORPORATIONInventors: Hayato Ogasawara, Yuji Kazehaya
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Patent number: 10780670Abstract: The present invention pertains to a carbon fiber reinforced plastic, and provides a carbon fiber reinforced plastic laminated body that is low cost and superior in moldability, mechanical characteristic balance, and impact resistance. The laminated body has three or more layers, and has the following (B) layer between two layers of a fiber reinforced resin sheet, (B) layer: A resin sheet in which the displacement, in an S-S curve waveform obtained by the following high-speed punching test, from a peak value of the test force (kN) to an 85%—attenuation value is not less than 22 mm. High-speed punching test: Impact absorption energy is calculated by using an impact testing machine in compliance with ISO6603-2 standard. A 100 mm×100 mm test piece is cut out from a sheet having a thickness of 2 mm. The diameter of a striker is 12 mm. the diameter of an opening section of a holding tool is 76 mm, and the impact speed is set to 5 m/sec.Type: GrantFiled: April 1, 2016Date of Patent: September 22, 2020Assignee: Mitsubishi Chemical CorporationInventors: Masahiko Nagasaka, Takeshi Ishikawa, Hayato Ogasawara
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Publication number: 20200131297Abstract: A sheet molding compound according to a first aspect of the present invention comprises: a thickened product of a resin composition comprising a vinyl ester resin, a thickener, a polymerization initiator, a polymerization inhibitor and isobornyl methacrylate; and a reinforcing fiber.Type: ApplicationFiled: December 30, 2019Publication date: April 30, 2020Applicant: Mitsubishi Chemical CorporationInventors: Seiji TSUCHIYA, Hayato OGASAWARA, Yukichi KONAMI, Hiroyuki NAKAO, Shinichirou FURUYA, Yasuhiko NABESHIMA, Atsushi TAKAHASHI
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Patent number: 10604633Abstract: A prepreg formed from a resin and unidirectionally aligned reinforcement fibers, characterized in that: the prepreg is sheet-shaped; the prepreg has cutouts of a depth for cutting the reinforcement fibers, and includes reinforcement fibers (A) cut by the cutouts to a length of 10 to 50 mm and reinforcement fibers (B) having a length of equal to or more than 50% of the sheet length of the prepreg in the alignment direction of the reinforcement fibers; the surface area of a band section including the reinforcement fibers (B) in a plan view is 1.4% to 35.0% of the entire surface area of the prepreg in a plan view; and at least one end of the reinforcement fibers (B) is positioned at an end portion of the prepreg in the alignment direction of the reinforcement fibers.Type: GrantFiled: September 9, 2014Date of Patent: March 31, 2020Assignee: Mitsubishi Chemical CorporationInventors: Hayato Ogasawara, Masahiko Nagasaka, Yasuhiko Nabeshima, Takeshi Ishikawa, Akinobu Sasaki
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Publication number: 20190031817Abstract: The thermosetting resin composition according to an embodiment of the present invention contains a component (A) which is a novolac vinyl ester resin having a hydroxyl group and an ethylenically unsaturated group in the molecule, a component (B) which is an ethylenically unsaturated monomer, and a component (D) which is a polyisocyanate compound, wherein the component (A) has a hydroxyl value of 30-150 mgKOH/g, and the mole number of the hydroxyl group with respect to the mole number of the ethylenically unsaturated group per gram of the component (A) ((the amount of the hydroxyl group [mol/g])/(the amount of the ethylenically unsaturated group [mol/g])) is 0.1-0.8.Type: ApplicationFiled: October 4, 2018Publication date: January 31, 2019Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Hayato OGASAWARA, Yuji KAZEHAYA
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Publication number: 20180079165Abstract: The present invention pertains to a carbon fiber reinforced plastic, and provides a carbon fiber reinforced plastic laminated body that is low cost and superior in moldability, mechanical characteristic balance, and impact resistance. The laminated body has three or more layers, and has the following (B) layer between two layers of a fiber reinforced resin sheet, (B) layer: A resin sheet in which the displacement, in an S-S curve waveform obtained by the following high-speed punching test, from a peak value of the test force (kN) to an 85%—attenuation value is not less than 22 mm. High-speed punching test: Impact absorption energy is calculated by using an impact testing machine in compliance with ISO6603-2 standard. A 100 mm×100 mm test piece is cut out from a sheet having a thickness of 2 mm. The diameter of a striker is 12 mm. the diameter of an opening section of a holding tool is 76 mm, and the impact speed is set to 5 m/sec.Type: ApplicationFiled: April 1, 2016Publication date: March 22, 2018Applicant: Mitsubishi Chemical CorporationInventors: Masahiko NAGASAKA, Takeshi ISHIKAWA, Hayato OGASAWARA
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Publication number: 20170157889Abstract: Provided is a laminated substrate wherein a sheet-shaped material with a porosity of 50-99% is laminated onto at least one surface of a prepreg substrate which includes a reinforcing fiber and a thermoplastic resin.Type: ApplicationFiled: December 5, 2014Publication date: June 8, 2017Applicant: Mitsubishi Rayon Co., Ltd.Inventors: Takeshi ISHIKAWA, Hayato OGASAWARA, Masao TOMIOKA
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Patent number: 9672267Abstract: A hybrid data management/storage system is provided which includes two or more integrated or connected data management systems. An external application and/or user interacts with the hybrid data management/storage system using a unified interface. Incoming raw data may be directed to be stored in any of a plurality of data management systems based on the incoming data object having one or more of a number of predefined characteristics, including for example size and/or data type. Metadata corresponding to all incoming data objects may be stored in a particular data store, regardless of whether the incoming object's raw data is stored in a different one of the plurality of data stores.Type: GrantFiled: June 14, 2016Date of Patent: June 6, 2017Assignee: Cloudian Holdings, Inc.Inventors: Gary Hayato Ogasawara, Michael M. Tso
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Publication number: 20160297185Abstract: Provided is a fiber-reinforced resin laminate that is characterized by: comprising stacked layers of the (A) layer and the (B) layer that are indicated below; and by the value resulting from dividing the sum total of the thickness of the (A) layer by the sum total of the thickness of the (B) layer being 0.5-3.0. (A) layer: a laminate that comprises a prepreg in which reinforcing fibers are impregnated with a resin or a resin composition and wherein the product of the square of the volume fraction (Vf) of the reinforcing fibers and the average fiber length (Lamm) is greater than 2.0 mm and equal to or less than 15 mm. (B) layer: a sheet that comprises at least one composition selected from the group consisting of resin compositions and filler-containing resin compositions and wherein the product of the square of the volume fraction (Vf) of the filler and the average value (Lbmm) of the maximum length of the filler is 2.0 mm or less.Type: ApplicationFiled: December 2, 2014Publication date: October 13, 2016Applicant: Mitsubishi Rayon Co., Ltd.Inventors: Masahiko NAGASAKA, Hayato OGASAWARA, Takeshi ISHIKAWA
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Publication number: 20160292255Abstract: A hybrid data management/storage system is provided which includes two or more integrated or connected data management systems. An external application and/or user interacts with the hybrid data management/storage system using a unified interface. Incoming raw data may be directed to be stored in any of a plurality of data management systems based on the incoming data object having one or more of a number of predefined characteristics, including for example size and/or data type. Metadata corresponding to all incoming data objects may be stored in a particular data store, regardless of whether the incoming object's raw data is stored in a different one of the plurality of data stores.Type: ApplicationFiled: June 14, 2016Publication date: October 6, 2016Applicant: Cloudian Holdings, Inc.Inventors: Gary Hayato OGASAWARA, Michael M. TSO
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Patent number: 9396290Abstract: A hybrid data management/storage system is provided which includes two or more integrated or connected data management systems. An external application and/or user interacts with the hybrid data management/storage system using a unified interface. Incoming raw data may be directed to be stored in any of a plurality of data management systems based on the incoming data object having one or more of a number of predefined characteristics, including for example size and/or data type. Metadata corresponding to all incoming data objects may be stored in a particular data store, regardless of whether the incoming object's raw data is stored in a different one of the plurality of data stores.Type: GrantFiled: June 9, 2011Date of Patent: July 19, 2016Assignee: Cloudian Holdings, Inc.Inventors: Gary Hayato Ogasawara, Michael M. Tso