Patents by Inventor Tomoaki Shimoda
Tomoaki Shimoda 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: 11932590Abstract: Provided are an inhibitor for RuO4 gas generation used in a manufacturing process of a semiconductor element, that inhibits a RuO4 gas generated when a semiconductor wafer containing ruthenium and a treatment liquid are brought into contact, and a method for inhibiting the RuO4 gas. Specifically, provided is an inhibitor for RuO4 gas generation for inhibiting a RuO4 gas generated when a semiconductor wafer containing ruthenium and a treatment liquid are brought into contact in semiconductor formation steps, wherein the inhibitor includes an onium salt consisting of an onium ion and a bromine-containing ion. Also provided is a method for inhibiting RuO4 gas generation by adding the inhibitor to a ruthenium treatment liquid or a ruthenium-containing liquid used in semiconductor formation steps.Type: GrantFiled: September 23, 2020Date of Patent: March 19, 2024Assignee: TOKUYAMA CORPORATIONInventors: Tomoaki Sato, Yuki Kikkawa, Takafumi Shimoda, Takayuki Negishi
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Publication number: 20240087911Abstract: The present invention addresses the issue of providing a method for removing a transition metal oxide adhered to a transition metal film in a process for manufacturing a semiconductor element, and of providing a treatment liquid. Specifically, the present invention provides a method for treating a semiconductor of a transition metal, the method including, in a semiconductor formation process, a step of removing a transition metal oxide and a step of removing the transition metal. The present invention also provides a reducing agent-containing treatment liquid for a transition metal oxide, wherein the concentration of the reducing agent contained in the reducing agent-containing treatment liquid is 0.01 mass % or more and 50 mass % or less.Type: ApplicationFiled: December 13, 2021Publication date: March 14, 2024Applicant: TOKUYAMA CORPORATIONInventors: Kohei SAITO, Tomoaki SATO, Yuki KIKKAWA, Takafumi SHIMODA, Takayuki NEGISHI
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Patent number: 10287395Abstract: A method for manufacturing a polyamide resin, according to the present invention, comprises the steps of: obtaining a low-order condensate in a solid state through polycondensation of dicarboxylic acid and diamine in the presence of a compound having a wt % of approximately 0.01 to 0.5 with respect to the total amount of the dicarboxylic acid and the diamine; and solid-state polymerizing the low-order condensate, wherein the dicarboxylic acid contains, with respect to the total amount of the dicarboxylic acid, approximately 70 mol % of aliphatic dicarboxylic acid having 9 to 12 carbon atoms, wherein the diamine contains, with respect to the total amount of the diamine, approximately 50 mol % of diamine represented by previously indicated chemical formula 1, wherein the range of the maximum temperature of the polycondensation reaction is approximately 200 to 230° C., and the maximum reaction temperature of the solid-state polymerization is approximately 170 to 230° C.Type: GrantFiled: November 21, 2014Date of Patent: May 14, 2019Assignee: Lotte Advanced Materials Co., Ltd.Inventors: Tomomichi Kanda, Tomoaki Shimoda
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Patent number: 9840587Abstract: The polyamide production method of the present invention comprises the steps of: producing a low-order condensate by effecting a polycondensation reaction between a dicarboxylic acid component containing between about 5 and about 40 mol. % of terephthalic acid, and a diamine component containing between about 70 and about 100 mol. % of a xylylenediamine in which the content of paraxylylenediamine is between about 50 and about 100 mol. %, under conditions of a reaction temperature of at least about 200° C. and less than about 230° C.; discharging and cooling the low-order condensate at a pressure at or below atmospheric pressure, in an inert gas atmosphere; and subjecting the discharged and cooled low-order condensate to solid state polymerization. The production method makes it possible to obtain a polyamide having outstanding mechanical strength, heat resistance, color tone and the like without problems such as gelling.Type: GrantFiled: October 23, 2013Date of Patent: December 12, 2017Assignee: Lotte Advanced Materials Co., Ltd.Inventors: Tomomich Kanda, Tomoaki Shimoda
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Patent number: 9796814Abstract: A polyamide resin, according to the present invention, is formed through polycondensation of a monomer comprising 1,4-cyclohexanedicarboxylic acid, 1,10-decanediamine, and 1,12-dodecanediamine, wherein the molar ratio of 1,10-decanediamine and 1,12-dodecanediamine is approximately 10:90 to approximately 65:35. As a result, the polyamide resin capable of enabling high durability and color stability in the polyamide molded body can be provided.Type: GrantFiled: November 19, 2014Date of Patent: October 24, 2017Assignee: Lotte Advanced Materials Co., Ltd.Inventors: Tomomichi Kanda, Tomoaki Shimoda
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Publication number: 20170002144Abstract: A method for manufacturing a polyamide resin, according to the present invention, comprises the steps of: obtaining a low-order condensate in a solid state by polycondensing dicarboxylic acid and diamine; and solid-state polymerizing the low-order condensate, wherein the dicarboxylic acid contains, with respect to the total amount of the dicarboxylic acid, approximately 70 mol % of aliphatic dicarboxylic acid having 9 to 12 carbon atoms, wherein the diamine contains, with respect to the total amount of the diamine, approximately 50 mol % of diamine represented by previously indicated chemical formula 1.Type: ApplicationFiled: November 21, 2014Publication date: January 5, 2017Inventors: Tomomichi KANDA, Tomoaki SHIMODA
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Publication number: 20160280855Abstract: A polyamide resin, according to the present invention, is formed through polycondensation of a monomer comprising 1,4-cyclohexanedicarboxylic acid, 1,10-decanediamine, and 1,12-dodecanediamine, wherein the molar ratio of 1,10-decanediamine and 1,12-dodecanediamine is approximately 10:90 to approximately 65:35. As a result, the polyamide resin capable of enabling high durability and color stability in the polyamide molded body can be provided.Type: ApplicationFiled: November 19, 2014Publication date: September 29, 2016Inventors: Tomomichi KANDA, Tomoaki SHIMODA
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Publication number: 20160280856Abstract: A method for manufacturing a polyamide resin, according to the present invention, comprises the steps of: obtaining a low-order condensate in a solid state through polycondensation of dicarboxylic acid and diamine in the presence of a compound having a wt % of approximately 0.01 to 0.5 with respect to the total amount of the dicarboxylic acid and the diamine; and solid-state polymerizing the low-order condensate, wherein the dicarboxylic acid contains, with respect to the total amount of the dicarboxylic acid, approximately 70 mol % of aliphatic dicarboxylic acid having 9 to 12 carbon atoms, wherein the diamine contains, with respect to the total amount of the diamine, approximately 50 mol % of diamine represented by previously indicated chemical formula 1, wherein the range of the maximum temperature of the polycondensation reaction is approximately 200 to 230° C., and the maximum reaction temperature of the solid-state polymerization is approximately 170 to 230° C.Type: ApplicationFiled: November 21, 2014Publication date: September 29, 2016Inventors: Tomomichi KANDA, Tomoaki SHIMODA
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Publication number: 20150329672Abstract: The polyamide production method of the present invention comprises the steps of: producing a low-order condensate by effecting a polycondensation reaction between a dicarboxylic acid component containing between about 5 and about 40 mol. % of terephthalic acid, and a diamine component containing between about 70 and about 100 mol. % of a xylylenediamine in which the content of paraxylylenediamine is between about 50 and about 100 mol. %, under conditions of a reaction temperature of at least about 200° C. and less than about 230° C.; discharging and cooling the low-order condensate at a pressure at or below atmospheric pressure, in an inert gas atmosphere; and subjecting the discharged and cooled low-order condensate to solid state polymerization. The production method makes it possible to obtain a polyamide having outstanding mechanical strength, heat resistance, colour tone and the like without problems such as gelling.Type: ApplicationFiled: October 23, 2013Publication date: November 19, 2015Inventors: Tomomich Kanda, Tomoaki Shimoda
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Publication number: 20140303341Abstract: The present invention relates to: a polyamide resin which is a copolymer of a mixture comprising (a1) one or more aliphatic diamine monomers selected from C4 to C10 aliphatic diamines, and (a2) one or more aliphatic diamine monomers selected from C11 to C18 aliphatic diamines, and a mixture comprising (b1) one or more aromatic dicarboxylic acid monomers selected from aromatic dicarboxylic acids, and (b2) one or more aliphatic dicarboxylic acid monomers selected from C4 to C14 aliphatic dicarboxylic acids, and has an amine and acid end group number greater than about 0 ?eq/g to about 150 ?eq/g; a preparation method thereof; and an article comprising the same.Type: ApplicationFiled: December 11, 2012Publication date: October 9, 2014Applicant: Cheil Industries Inc.Inventors: Seung Hyun Jang, Ki Yon Lee, Young Sub Jin, Suk Min Jun, Tomoaki Shimoda, Sang Kyun Im
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Patent number: 7112645Abstract: A polycarbonate composition comprises chloride, sulfate, phosphate or a combination of two or more of the foregoing ionic species in an amount of zero to about 100 parts per billion based on the total weight of the composition; and phenol, carbonic diester, aromatic dihydroxy compound or combination of two or more of the foregoing organic compounds in an amount of zero to about 500 parts per million by weight based on the total weight of the composition; wherein the polycarbonate has a weight average molecular weight of about 40,000 to about 90,000 dalton as determined by gel permeation chromatography using polystyrene standards and a melt volume rate of about 1 to about 35 cm3/10 minutes when measured at about 300° C. with a force of about 1.2 kilograms.Type: GrantFiled: March 19, 2004Date of Patent: September 26, 2006Assignee: General Electric CompanyInventors: Carlos Abad, Jose Maria Alonso Franco, Hiromi Ishida, Miguel Angel Salomon, Tomoaki Shimoda
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Patent number: 7105632Abstract: Disclosed is a method for recycling polycarbonate using melt polycondensation apparatus. A polycarbonate polycondensation component is introduced into transesterification polymerization equipment and subjected to one or both of a transesterification reaction and a polycondensation reaction. The polycarbonate polycondensation component has an OH group concentration and comprises one or both of polycarbonate waste resin and polycarbonate oligomer. The OH group concentration of the polycarbonate polycondensation component is adjusted either before or during the transesterification and/or polycondensation reactions.Type: GrantFiled: November 17, 2003Date of Patent: September 12, 2006Assignee: General Electric CompanyInventors: Akio Ikeda, Takato Kimura, Tomoaki Shimoda
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Publication number: 20050209434Abstract: A polycarbonate composition comprises chloride, sulfate, phosphate or a combination of two or more of the foregoing ionic species in an amount of zero to about 100 parts per billion based on the total weight of the composition; and phenol, carbonic diester, aromatic dihydroxy compound or combination of two or more of the foregoing organic compounds in an amount of zero to about 500 parts per million by weight based on the total weight of the composition; wherein the polycarbonate has a weight average molecular weight of about 40,000 to about 90,000 dalton as determined by gel permeation chromatography using polystyrene standards and a melt volume rate of about 1 to about 35 cm3/10 minutes when measured at about 300° C. with a force of about 1.2 kilograms.Type: ApplicationFiled: March 19, 2004Publication date: September 22, 2005Inventors: Carlos Abad, Jose Franco, Hiromi Ishida, Miguel Salomon, Tomoaki Shimoda
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Patent number: 6797803Abstract: A method of recycling fusible polycondensation resin waste in a fusion polymerization apparatus is disclosed. The method of recycling polycondensation resins comprises adding polycondensation resin waste directly to a fusion polymerization apparatus to carry out the polycondensation reaction. The polycondensation resin waste may be supplied from any point of the polycondensation apparatus to carry out the exchange reaction and/or the polycondensation reaction between the resin being prepared in the apparatus and the resin waste supplied. The method may be carried out in a continuous fusion polycondensation system with more than one polymerization reactor connected in series.Type: GrantFiled: February 24, 2003Date of Patent: September 28, 2004Assignee: General Electric CompanyInventors: Kazushige Inoue, Akio Ikeda, Takato Kimura, Tomoaki Shimoda, Masahiko Tatsumi
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Patent number: 6790927Abstract: This specification describes an optical polycarbonate composition obtained by the melt polycondensation of a bisphenol and a carbonic diester in the presence of an alkaline compound catalyst, wherein said optical polycarbonate composition comprises (i) a compound expressed by the following Formula [A] in an amount of 30 to 2000 ppm; (ii) a compound expressed by the following Formula [B] in an amount of 30 to 4000 ppm; and (iii) a compound expressed by the following Formula [C] in an amount of 80 to 8000 ppm. The polycarbonate composition has a viscosity average molecular weight of between 12,000 and 18,000, and the portion with a molecular weight (as measured by GPC) of 1000 or less accounts for 0.5 to 1.5 wt %.Type: GrantFiled: April 5, 2002Date of Patent: September 14, 2004Assignee: General Electric CompanyInventors: Kazushige Inoue, Tomoaki Shimoda
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Publication number: 20040116642Abstract: Disclosed is a method for recycling polycarbonate using melt polycondensation apparatus. A polycarbonate polycondensation component is introduced into transesterification polymerization equipment and subjected to one or both of a transesterification reaction and a polycondensation reaction. The polycarbonate polycondensation component has an OH group concentration and comprises one or both of polycarbonate waste resin and polycarbonate oligomer. The OH group concentration of the polycarbonate polycondensation component is adjusted either before or during the transesterification and/or polycondensation reactions.Type: ApplicationFiled: November 17, 2003Publication date: June 17, 2004Inventors: Akio Ikeda, Takato Kimura, Tomoaki Shimoda
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Patent number: 6720404Abstract: This specification discloses polycarbonates for optical use. These polycarbonates are prepared by reacting a bisphenol and carbonic diester in the presence of an alkaline compound catalyst. These polycarbonates have: (i) an intrinsic viscosity (IV) as determined at 20° C. in methylene chloride of between 0.34 and 0.38; (ii) a glass transition temperature (Tg) as determined by DSC of between 143 and 147° C.; and (iii) an intrinsic viscosity (IV) and glass transition temperature (Tg) ratio complying with the following general formula (A): IV×95.888+107.9<Tg<IV×95.888+113.Type: GrantFiled: April 5, 2002Date of Patent: April 13, 2004Assignee: General Electric CompanyInventors: Kazushige Inoue, Tomoaki Shimoda
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Publication number: 20030229197Abstract: A method of recycling fusible polycondensation resin waste in a fusion polymerization apparatus is disclosed. The method of recycling polycondensation resins comprises adding polycondensation resin waste directly to a fusion polymerization apparatus to carry out the polycondensation reaction. The polycondensation resin waste may be supplied from any point of the polycondensation apparatus to carry out the exchange reaction and/or the polycondensation reaction between the resin being prepared in the apparatus and the resin waste supplied. The method may be carried out in a continuous fusion polycondensation system with more than one polymerization reactor connected in series.Type: ApplicationFiled: February 24, 2003Publication date: December 11, 2003Inventors: Kazushige Inoue, Akio Ikeda, Takato Kimura, Tomoaki Shimoda, Masahiko Tatsumi
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Patent number: 6635710Abstract: A method for manufacturing polycarbonate by melt-polycondensing bisphenol and carbonic acid diester uses as catalyst an alkali metal compound and/or alkaline earth metal compound (a). The catalyst is added to the bisphenol prior to the melt polycondensation, in an effective amount, i.e., the amount of alkali metal compound and/or alkaline earth metal compound (a) that acts effectively as a catalyst, is contained in said bisphenol, and is controlled to have the same catalytic activity as 1×10−8 to 1×10−6 mole of bisphenol disodium salt per mole of pure bisphenol A. The method conducts the reaction efficiently from the initial stage in a stable manner to obtain polycarbonate with good color, good heat stability and color stability during molding and the like.Type: GrantFiled: December 10, 1998Date of Patent: October 21, 2003Assignee: General Electric CompanyInventors: Kiyoshi Kono, Kazutoyo Uno, Satoru Minami, Tomoaki Shimoda
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Patent number: 6620902Abstract: A process for preparing an end-capped polycarbonate comprises melt reacting an aromatic dihydroxy compound, a carbonic acid diester, and optionally a catalyst in a prepolymerization vessel to form a polycarbonate product; transferring the polycarbonate product from the prepolymerization vessel; mixing the polycarbonate product with an end-capping agent under hermetic seal at a pressure of at least about 760 mm Hg; and transferring the polycarbonate product and end-capping agent mixture to a postpolymerization vessel to endcap the polycarbonate product.Type: GrantFiled: April 8, 2002Date of Patent: September 16, 2003Assignee: General Electric CompanyInventors: Tomoaki Shimoda, Akio Ikeda, Takato Kimura, Ken Tamada, Hans-Peter Brack, Dennis Karlik, Lina Prada, Hendricus Franciscus Zirkzee, James Anthony Cella