Patents by Inventor Keiichiro OSHIMA
Keiichiro OSHIMA 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).
-
Patent number: 11926956Abstract: Disclosed is an elastic fiber treatment agent that contains at least one smoothing agent selected from the group consisting of mineral oils, silicone oils, and ester oils and at least one naturally derived ingredient selected from the group consisting of terpene resins and terpene resin derivatives. Also disclosed is an elastic fiber treatment agent that contains at least one smoothing agent selected from the group consisting of mineral oils, silicone oils, and ester oils and at least one naturally derived ingredient selected from the group consisting of rosins and rosin derivatives. In one aspect, the smoothing agent includes a mineral oil and the mineral oil content of the smoothing agent (A) is 59.5% to 95% by mass.Type: GrantFiled: September 17, 2021Date of Patent: March 12, 2024Assignee: TAKEMOTO YUSHI KABUSHIKI KAISHAInventors: Takeshi Nishigawa, Keiichiro Oshima
-
Publication number: 20230399794Abstract: An inorganic fiber sizing agent that contains at least one carbon nanostructure selected from the group consisting of carbon nanotubes and carbon nanofibers, a resin, and a surfactant. If the total content of a nonvolatile content of the resin and the surfactant is taken as 100 parts by mass, the inorganic fiber sizing agent contains the surfactant at a ratio of 2 to 50 parts by mass.Type: ApplicationFiled: December 17, 2021Publication date: December 14, 2023Inventors: Satoru HAMAJIMA, Jun ITO, Keiichiro OSHIMA
-
Patent number: 11834777Abstract: Please replace the Abstract of the Disclosure with the following: An elastic fiber treatment agent that contains a smoothing agent, water and an organic phosphoric acid ester salt. The smoothing agent contains a mineral oil with an aniline point of not more than 110° C., a silicone oil, and optionally an ester oil. Assuming that the sum of the content ratios of the smoothing agent, the water, and the organic phosphoric acid ester salt in the elastic fiber treatment agent is 100 parts by mass, the elastic fiber treatment agent contains the mineral oil at a ratio of 20 to 90 parts by mass and the water at a ratio of 0.01 to 2 parts by mass.Type: GrantFiled: September 6, 2021Date of Patent: December 5, 2023Assignee: TAKEMOTO YUSHI KABUSHIKI KAISHAInventors: Takeshi Nishigawa, Keiichiro Oshima, Kohei Oda
-
Publication number: 20230349096Abstract: The purpose of the present invention is to provide: an elastic fiber treating agent that can improve the morphological characteristics of elastic fibers; and elastic fibers that have the elastic fiber treating agent adhered thereto. This elastic fiber treating agent is characterized by containing: at least one smoothing agent (A) selected from mineral oil, silicone oil, and ester oil; and an unsaturated fatty acid metal salt (B).Type: ApplicationFiled: September 17, 2021Publication date: November 2, 2023Applicant: TAKEMOTO YUSHI KABUSHIKI KAISHAInventors: Takeshi Nishigawa, Kohei Oda, Keiichiro Oshima
-
Publication number: 20230340721Abstract: Disclosed is a synthetic fiber treatment agent that contains a smoothing agent and a nonionic surfactant. The smoothing agent contains a condensed hydroxy fatty acid formed by condensation from a hydroxy fatty acid having a hydroxy group and a carboxy group in the molecule.Type: ApplicationFiled: September 27, 2021Publication date: October 26, 2023Applicant: TAKEMOTO YUSHI KABUSHIKI KAISHAInventors: Hiroki Honda, Takuya Matsunaga, Keiichiro Oshima
-
Publication number: 20230265604Abstract: Disclosed is an elastic fiber treatment agent that contains a smoothing agent and an alkyl phosphate ester compound. The alkyl phosphate ester compound contains specific phosphate ester Q1 and at least one or more selected from specific phosphate esters Q2 and Q3. In a P nucleus NMR measurement of the alkyl phosphate ester compound upon an alkali over-neutralization pretreatment, a P nucleus NMR integral ratio attributed to the phosphate ester Q1 is 15% to 60% if the sum of P nucleus NMR integral ratios attributed to the phosphate esters Q1 to Q3 and phosphoric acid and its salt is taken as 100%.Type: ApplicationFiled: September 6, 2021Publication date: August 24, 2023Applicant: TAKEMOTO YUSHI KABUSHIKI KAISHAInventors: Keiichiro Oshima, Jun Ito, Takeshi Nishigawa
-
Publication number: 20230257929Abstract: Disclosed is an elastic fiber treatment agent that contains at least one smoothing agent selected from the group consisting of mineral oils, silicone oils, and ester oils and at least one naturally derived ingredient selected from the group consisting of terpene resins and terpene resin derivatives. Also disclosed is an elastic fiber treatment agent that contains at least one smoothing agent selected from the group consisting of mineral oils, silicone oils, and ester oils and at least one naturally derived ingredient selected from the group consisting of rosins and rosin derivatives. In one aspect, the smoothing agent includes a mineral oil and the mineral oil content of the smoothing agent (A) is 59.5% to 95% by mass.Type: ApplicationFiled: September 17, 2021Publication date: August 17, 2023Applicant: TAKEMOTO YUSHI KABUSHIKI KAISHAInventors: Takeshi Nishigawa, Keiichiro Oshima
-
Publication number: 20230250577Abstract: An elastic fiber treatment agent that contains a smoothing agent, water and an organic phosphoric acid ester salt. The smoothing agent contains a mineral oil with an aniline point of not more than 110° C., a silicone oil, and optionally an ester oil. Assuming that the sum of the content ratios of the smoothing agent, the water, and the organic phosphoric acid ester salt in the elastic fiber treatment agent is 100 parts by mass, the elastic fiber treatment agent contains the mineral oil at a ratio of 20 to 90 parts by mass and the water at a ratio of 0.01 to 2 parts by mass.Type: ApplicationFiled: September 6, 2021Publication date: August 10, 2023Inventors: Takeshi NISHIGAWA, Keiichiro OSHIMA, Kohei ODA
-
Publication number: 20230243090Abstract: An elastic fiber treatment agent that contains, as a smoothing agent, a mineral oil with a content ratio of an aromatic component of less than 1% by mass and an aniline point of 70° C. to 110° C. The mineral oil has a mass ratio between the content of a naphthene component and the content of a paraffin component of such that naphthene component/paraffin component=30 to 50/70 to 50.Type: ApplicationFiled: September 6, 2021Publication date: August 3, 2023Inventors: Takeshi NISHIGAWA, Keiichiro OSHIMA
-
Publication number: 20230122328Abstract: The present invention addresses the problem of suitably suppressing fluffing during a spinning process. This method for producing a treatment agent for synthetic fibers, wherein the boron content in the nonvolatile content of the treatment agent for synthetic fibers as detected by ICP emission spectrometry is 200 ppm or less, comprises: an addition step wherein a (poly)oxyalkylene derivative is produced by adding an alkylene oxide to an alcohol in the presence of a catalyst that has a boron atom in each molecule; and a removal step wherein the catalyst is removed so that the boron content in the nonvolatile content of the treatment agent for synthetic fibers as detected by ICP emission spectrometry becomes 200 ppm or less.Type: ApplicationFiled: June 7, 2021Publication date: April 20, 2023Inventors: Keiichiro OSHIMA, Jun ITO, Takeshi NISHIGAWA
-
Publication number: 20230119627Abstract: The present invention addresses the problem of suitably improving the converging ability of synthetic fibers. This synthetic fiber treatment agent contains a polyoxy alkylene alkyl ether obtained by proportionally adding, to 1 mole of a monovalent aliphatic alcohol having a hydroxy group at the beta-position of an alkyl chain having 4 or more carbon atoms, a total of 1-30 moles of an alkylene oxide having 2-4 carbon atoms.Type: ApplicationFiled: June 7, 2021Publication date: April 20, 2023Inventors: Jun ITO, Keiichiro OSHIMA, Takeshi NISHIGAWA
-
Patent number: 11591747Abstract: Provided is an elastic fiber treatment agent, containing; a hydrocarbon resin (A); and a hydrocarbon oil (B). The hydrocarbon resin (A) contains a polymer having a structural unit, as a main structural unit, derived from at least one monomer selected from aromatic olefin and aliphatic diolefin, the polymer being partially hydrogenated or fully hydrogenated. It is preferred that the hydrocarbon resin (A) contains a polymer having a structural unit derived from aromatic olefin as a monomer, the polymer being partially hydrogenated or fully hydrogenated, and the aromatic olefin is at least one selected from indene and methylstyrene. Thus, the elastic fiber treatment agent of the present invention imparts excellent unraveling properties to elastic fibers and has excellent adhesiveness to hot melt adhesives, enables the production of stretchable sheets exhibiting good adhesiveness even when processed at a high draft ratio, and is suitable for obtaining soft feel sanitary products.Type: GrantFiled: October 20, 2020Date of Patent: February 28, 2023Assignee: Takemoto Oil & Fat Co., Ltd.Inventors: Katsuya Suzuki, Toshihiro Tanaka, Kazuki Naeshiro, Keiichiro Oshima, Yasunobu Arakawa
-
Publication number: 20220372694Abstract: An elastic fiber of the present invention having an elastic fiber treatment agent attached to the fiber surface, comprises: a hydrocarbon resin (A) having a structure in which a polymer including a structural unit whose monomer is at least one selected from aromatic olefins and aliphatic diolefins as the main structural unit is partially or fully hydrogenated; and a hydrocarbon oil (B). In this way, an elastic fiber and a fiber structure comprising the same are provided that are suitable for obtaining an elastic sheet that has excellent elastic fiber unraveling properties and adhesiveness to hot melt adhesives, and that exhibits good adhesiveness even when processed at a high draft, and for obtaining a sanitary product that is soft to the touch.Type: ApplicationFiled: October 20, 2020Publication date: November 24, 2022Inventors: Katsuya SUZUKI, Toshihiro TANAKA, Kazuki NAESHIRO, Keiichiro OSHIMA, Yasunobu ARAKAWA
-
Publication number: 20220364302Abstract: Disclosed is a treatment agent for flame-resistant fiber nonwoven fabric production or for carbon fiber nonwoven fabric production. The treatment agent contains a polyether compound in which ethylene oxide and propylene oxide are added to an alcohol. Also disclosed is a flame-resistant fiber nonwoven fabric or carbon fiber nonwoven fabric that includes the treatment agent adhered thereto.Type: ApplicationFiled: January 20, 2021Publication date: November 17, 2022Inventors: Jun ITO, Keiichiro OSHIMA
-
Publication number: 20220356641Abstract: Provided is an elastic fiber treatment agent, containing; a hydrocarbon resin (A); and a hydrocarbon oil (B). The hydrocarbon resin (A) contains a polymer having a structural unit, as a main structural unit, derived from at least one monomer selected from aromatic olefin and aliphatic diolefin, the polymer being partially hydrogenated or fully hydrogenated. It is preferred that the hydrocarbon resin (A) contains a polymer having a structural unit derived from aromatic olefin as a monomer, the polymer being partially hydrogenated or fully hydrogenated, and the aromatic olefin is at least one selected from indene and methylstyrene. Thus, the elastic fiber treatment agent of the present invention imparts excellent unraveling properties to elastic fibers and has excellent adhesiveness to hot melt adhesives, enables the production of stretchable sheets exhibiting good adhesiveness even when processed at a high draft ratio, and is suitable for obtaining soft feel sanitary products.Type: ApplicationFiled: October 20, 2020Publication date: November 10, 2022Inventors: Katsuya SUZUKI, Toshihiro TANAKA, Kazuki NAESHIRO, Keiichiro OSHIMA, Yasunobu ARAKAWA
-
Patent number: 11447634Abstract: Carbon fiber precursor treatment agents include a nonionic surfactant, an amino-modified silicone, and a dimethyl silicone with a kinematic viscosity at 25° C. of 5 to 200 mm2/s. The mass ratio of the content of the amino-modified silicone with respect to the content of the dimethyl silicone is 99.9/0.1 to 90/10. Alternatively, when the total content of the nonionic surfactant, the amino-modified silicone, and the dimethyl silicone is taken as 100 parts by mass, the nonionic surfactant is contained at a ratio of 9 to 85 parts by mass, the amino-modified silicone is contained at a ratio of 10 to 90.9 parts by mass, and the dimethyl silicone is contained at a ratio of 0.1 to 5 parts by mass.Type: GrantFiled: May 26, 2020Date of Patent: September 20, 2022Assignee: TAKEMOTO YUSHI KABUSHIKI KAISHAInventors: Akihiro Doi, Keiichiro Oshima
-
Publication number: 20220089875Abstract: Carbon fiber precursor treatment agents include a nonionic surfactant, an amino-modified silicone, and a dimethyl silicone with a kinematic viscosity at 25° C. of 5 to 200 mm2/s. The mass ratio of the content of the amino-modified silicone with respect to the content of the dimethyl silicone is 99.9/0.1 to 90/10. Alternatively, when the total content of the nonionic surfactant, the amino-modified silicone, and the dimethyl silicone is taken as 100 parts by mass, the nonionic surfactant is contained at a ratio of 9 to 85 parts by mass, the amino-modified silicone is contained at a ratio of 10 to 90.9 parts by mass, and the dimethyl silicone is contained at a ratio of 0.1 to 5 parts by mass.Type: ApplicationFiled: May 26, 2020Publication date: March 24, 2022Inventors: Akihiro DOI, Keiichiro OSHIMA
-
Publication number: 20210002820Abstract: A carbon fiber precursor treatment agent contains a smoothing agent that includes an amino-modified silicone, at least one onium salt selected from the group consisting of organic sulfuric acid phosphonium salts, organic sulfonic acid phosphonium salts, quaternary ammonium salts of an organic sulfuric acid having an alkyl group with not less than 3 carbon atoms in the molecule, and quaternary ammonium salts of an organic sulfonic acid having an alkyl group with not less than 3 carbon atoms in the molecule, and a nonionic surfactant.Type: ApplicationFiled: June 30, 2020Publication date: January 7, 2021Inventors: Motoki MAEDA, Yohei SUZUKI, Keiichiro OSHIMA
-
Patent number: 10167378Abstract: A processing method according to the present embodiment is a processing method of a fiber containing resin in which fibers are contained in a matrix resin. The processing method includes: a step of thermal decomposition of the matrix resin in the fiber containing resin; and a step of stirring a resulting fibers bundle in solvent after the thermal decomposition. At the time of the thermal decomposition, the matrix resin may be carbonized in a dry distillation-carbonization furnace, for example.Type: GrantFiled: April 2, 2015Date of Patent: January 1, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroshi Urayama, Takahiro Takeuchi, Keiichiro Oshima, Ippei Noda
-
Publication number: 20150284541Abstract: A processing method according to the present embodiment is a processing method of a fiber containing resin in which fibers are contained in a matrix resin. The processing method includes: a step of thermal decomposition of the matrix resin in the fiber containing resin; and a step of stirring a resulting fibers bundle in solvent after the thermal decomposition. At the time of the thermal decomposition, the matrix resin may be carbonized in a dry distillation-carbonization furnace, for example.Type: ApplicationFiled: April 2, 2015Publication date: October 8, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroshi URAYAMA, Takahiro TAKEUCHI, Keiichiro OSHIMA, Ippei NODA