Patents by Inventor Tetsuji Moroiwa
Tetsuji Moroiwa 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).
-
Publication number: 20220169776Abstract: The objective of the present invention is to provide a liquid composition which is for a fiber reinforced plastic intermediate base material, and which imparts excellent FRP mechanical properties and can suppress voids as much as possible. The liquid composition for a fiber reinforced plastic intermediate base material according to the present invention is characterized by being obtained by mixing (A) and (B). (A): a composition including a compound (a) having at least two isocyanate groups, and (B): a composition which includes (b1) as an essential component and may include (b2) and (b3). (b1): a monoalcohol compound having an ethylenically unsaturated group, (b2): a compound having at least two reactive groups with isocyanate groups , and (b3): a polymerization inhibitor.Type: ApplicationFiled: February 5, 2020Publication date: June 2, 2022Applicant: Japan U-Pica Company, Ltd.Inventors: Tetsuji MOROIWA, Nozomi ISHINE, Hiroki OKADO, Katsunori IRIE, Hideaki FURUKI
-
Publication number: 20190169387Abstract: The purpose of the present invention is to provide a prepreg sheet including a radical-polymerizable resin composition contributing to excellent mechanical properties of a fiber reinforced plastic, excellent curability with storability. The prepreg sheet of the present invention is obtained by infiltrating a radical-polymerizable resin composition into fibers, and is characterized in that the radical-polymerizable resin composition contains at least a urethane (meth) acrylate compound (a) represented by the following chemical formula [Chemical 1]: X?M[n??]Chemical 1] (in the formula, wherein n is within a range from 2 to 100, X is a compound residue having two or more isocyanate groups, and M contains at least formula [Chemical 2]: —N?C?O??[Chemical 2] in the formula [Chemical 3], Q represents a mono alcohol compound residue containing ethylenically unsaturated groups.).Type: ApplicationFiled: March 30, 2017Publication date: June 6, 2019Applicant: Japan U-Pica Company, Ltd.Inventors: Tetsuji MOROIWA, Nozomi ISHINE
-
Publication number: 20180272625Abstract: [Objective] The object of the present invention is to provide a fiber reinforced plastic molded article having favorable close contact properties with reinforcing fibers and superior mechanical strength.Type: ApplicationFiled: November 10, 2016Publication date: September 27, 2018Applicant: Japan U-Pica Company, Ltd.Inventors: Tetsuji MOROIWA, Nozomi ISHINE
-
Patent number: 9969839Abstract: In a resin film configured to have a cured product layer formed from a curable resin composition on the surface of a substrate, the present invention aims to ensure not only the processability and other properties of the resin, but also the performance required for recent high-hardness coating films. The above problem was solved by a curable resin composition comprising the intended polyfunctional urethane (meth)acrylate oligomer, which is capable of forming a cured product layer when applied to and cured on a resin substrate.Type: GrantFiled: November 18, 2014Date of Patent: May 15, 2018Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Humiaki Kakeya, Takahiro Matsumoto, Katsuyuki Murai, Tetsuji Moroiwa, Yasuhiro Maeda
-
Patent number: 9518007Abstract: The present invention provides a thermosetting resin which enables the production of a carbon fiber reinforced plastic having a good workability and excellent mechanical properties by hand lay up (HUP) molding, resin transfer molding (RTM) or vacuum assisted resin transfer molding (VaRTM). The urethane (meth) acrylate compound (A) according to the present invention is an urethane (meth) acrylate produced by reacting a compound having two or more isocyanate groups with a monoalcohol compound containing ethylenically unsaturated groups or by reacting a compound having two or more isocyanate groups with a monoalcohol compound containing ethylenically unsaturated groups and an alcohol compound having two or more hydroxyl groups, said urethane (meth) acrylate compound (A) being characterized by having an isocyanate group and ethylenically unsaturated groups.Type: GrantFiled: January 15, 2014Date of Patent: December 13, 2016Assignee: JAPAN U-PICA COMPANY, LTD.Inventors: Tetsuji Moroiwa, Nozomi Ishine, Hiroshi Hayashi
-
Publication number: 20160297920Abstract: In a resin film configured to have a cured product layer formed from a curable resin composition on the surface of a substrate, the present invention aims to ensure not only the processability and other properties of the resin, but also the performance required for recent high-hardness coating films. The above problem was solved by a curable resin composition comprising the intended polyfunctional urethane (meth)acrylate oligomer, which is capable of forming a cured product layer when applied to and cured on a resin substrate.Type: ApplicationFiled: November 18, 2014Publication date: October 13, 2016Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Humiaki KAKEYA, Takahiro MATSUMOTO, Katsuyuki MURAI, Tetsuji MOROIWA, Yasuhiro MAEDA
-
Publication number: 20150361035Abstract: The present invention provides a thermosetting resin which enables the production of a carbon fiber reinforced plastic having a good workability and excellent mechanical properties by hand lay up (HUP) molding, resin transfer molding (RTM) or vacuum assisted resin transfer molding (VaRTM). The urethane (meth) acrylate compound (A) according to the present invention is an urethane (meth) acrylate produced by reacting a compound having two or more isocyanate groups with a monoalcohol compound containing ethylenically unsaturated groups or by reacting a compound having two or more isocyanate groups with a monoalcohol compound containing ethylenically unsaturated groups and an alcohol compound having two or more hydroxyl groups, said urethane (meth) acrylate compound (A) being characterized by having an isocyanate group and ethylenically unsaturated groups.Type: ApplicationFiled: January 15, 2014Publication date: December 17, 2015Applicant: JAPAN U-PICA COMPANY, LTD.Inventors: Tetsuji MOROIWA, Nozomi ISHINE, Hiroshi HAYASHI
-
Patent number: 8828636Abstract: It is an object of the present invention to provide a new alcohol compound, a polyester resin, an unsaturated polyester resin, a resin particle and an electrophotographic toner using the compound capable of using the renewable resources as a part of a raw material. An alcohol compound according to the present invention is characterized by representing the chemical formula [Chemical 1]. Furthermore, the polyester resin or the unsaturated polyester resin according to the present invention, is characterized in that the compound (wherein X is an aliphatic or an aromatic residue, Y is a refined rosin residue, a disproportionated rosin residue or a hydrogenated rosin residue, and n=0 to 1 in the formula.) is an essential component of an alcohol component. Further, the resin particle of the present invention is characterized by comprising the polyester resin.Type: GrantFiled: March 2, 2011Date of Patent: September 9, 2014Assignee: Japan U-Pica Company, Ltd.Inventors: Tetsuji Moroiwa, Nobutaka Yoshida, Hiroshi Aihara, Akira Yamane, Kei Yamasaki, Keiko Taniuchi
-
Patent number: 8568949Abstract: A toner for developing an electrostatic charge image which contains a polyester resin as a binder resin is provided. The toner has excellent toner properties including low temperature fixing properties, anti-blocking property and anti-offset property, etc. Also a polyester resin for a toner is provided, which is used in the above-mentioned toner. As the binder resin for toner, a polyester resin comprising (1) an aromatic dicarboxylic acid and (2) a disproportionated rosin as an acid component, and (3) a tri- or more-valent polyhydric alcohol as an alcohol component is used, wherein the molar ratio (3)/(1) of the alcohol component (3) and the acid component (1) is from 1.05 to 1.65 and the molar ratio (2)/(1) of the acid components (2) and (1) is from 0.40 to 2.60.Type: GrantFiled: June 9, 2009Date of Patent: October 29, 2013Assignee: Japan U-Pica Company Ltd.Inventors: Akira Yamane, Tetsuji Moroiwa, Koji Yamamoto
-
Publication number: 20130071785Abstract: It is an object of the present invention to provide a new alcohol compound, a polyester resin, an unsaturated polyester resin, a resin particle and an electrophotographic toner using the compound capable of using the renewable resources as a part of a raw material. An alcohol compound according to the present invention is characterized by representing the chemical formula [Chemical 1]. Furthermore, the polyester resin or the unsaturated polyester resin according to the present invention, is characterized in that the compound (wherein X is an aliphatic or an aromatic residue, Y is a refined rosin residue, a disproportionated rosin residue or a hydrogenated rosin residue, and n=0 to 1 in the formula.) is an essential component of an alcohol component. Further, the resin particle of the present invention is characterized by comprising the polyester resin.Type: ApplicationFiled: March 2, 2011Publication date: March 21, 2013Applicant: Japan U-Pica Company, Ltd.Inventors: Tetsuji Moroiwa, Nobutaka Yoshida, Hiroshi Aihara, Akira Yamane, Kei Yamasaki, Keiko Taniuchi
-
Publication number: 20110123922Abstract: A toner for developing an electrostatic charge image which contains a polyester resin as a binder resin is provided. The toner has excellent toner properties including low temperature fixing properties, anti-blocking property and anti-offset property, etc. Also a polyester resin for a toner is provided, which is used in the above-mentioned toner. As the binder resin for toner, a polyester resin comprising (1) an aromatic dicarboxylic acid and (2) a disproportionated rosin as an acid component, and (3) a tri- or more-valent polyhydric alcohol as an alcohol component is used, wherein the molar ratio (3)/(1) of the alcohol component (3) and the acid component (1) is from 1.05 to 1.65 and the molar ratio (2)/(1) of the acid components (2) and (1) is from 0.40 to 2.60.Type: ApplicationFiled: June 9, 2009Publication date: May 26, 2011Applicant: Japan U-Pica Company Ltd.Inventors: Akira Yamane, Tetsuji Moroiwa, Koji Yamamoto