Patents by Inventor Kazuhiro Fukushima
Kazuhiro Fukushima 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: 11953827Abstract: A molecular resist composition is provided comprising (A) a betaine type onium compound having a sulfonium cation moiety and a sulfonate anion moiety in a common molecule, the sulfonium cation moiety having a phenyl group substituted with an optionally heteroatom-containing monovalent hydrocarbon group, the phenyl group being attached to the sulfur atom, and (B) an organic solvent, the resist composition being free of a base resin. When processed by lithography using KrF, ArF excimer laser, EB or EUV, the resist composition is improved in dissolution contrast, EL, MEF, and LWR.Type: GrantFiled: April 24, 2020Date of Patent: April 9, 2024Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Masahiro Fukushima, Masaki Ohashi, Kazuhiro Katayama
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Patent number: 11940728Abstract: A molecular resist composition and a pattern forming process. A molecular resist composition comprising a sulfonium salt having a cation of specific structure and an organic solvent has a high sensitivity and forms a resist film with improved resolution and LWR, when processed by EB or EUV lithography. The molecular resist composition does not contain a base polymer. The molecular resist composition comprising a sulfonium salt having a cation of specific partial structure has a high sensitivity and forms a resist film with improved resolution and LWR, so that the resist composition is quite useful for precise micropatterning.Type: GrantFiled: September 24, 2021Date of Patent: March 26, 2024Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Masaki Ohashi, Kazuhiro Katayama, Masahiro Fukushima, Shun Kikuchi
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Patent number: 10883153Abstract: In a manufacturing method for a sliding member, a nitrogen diffusion layer, a nitrogen compound layer, and an oxidation layer are formed by executing a first step of cooling a workpiece formed of a steel material after heating the workpiece in an atmosphere containing ammonia at 570 to 660° C., a second step of performing, subsequently to the first step, tempering while pressurizing a front surface side of the workpiece, and a third step of performing, subsequently to the second step, steam treatment of heating the workpiece in a steam atmosphere.Type: GrantFiled: May 26, 2016Date of Patent: January 5, 2021Assignee: JTEKT CORPORATIONInventors: Kazutaka Matsukawa, Hiroyuki Ando, Yasunari Saito, Hideyuki Saito, Kazuhiro Fukushima, Tomoyuki Nanba
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Publication number: 20160348737Abstract: In a manufacturing method for a sliding member, a nitrogen diffusion layer, a nitrogen compound layer, and an oxidation layer are formed by executing a first step of cooling a workpiece formed of a steel material after heating the workpiece in an atmosphere containing ammonia at 570 to 660° C., a second step of performing, subsequently to the first step, tempering while pressurizing a front surface side of the workpiece, and a third step of performing, subsequently to the second step, steam treatment of heating the workpiece in a steam atmosphere.Type: ApplicationFiled: May 26, 2016Publication date: December 1, 2016Applicant: JTEKT CORPORATIONInventors: Kazutaka MATSUKAWA, Hiroyuki ANDO, Yasunari SAITO, Hideyuki SAITO, Kazuhiro FUKUSHIMA, Tomoyuki Nanba
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Patent number: 9034843Abstract: The present invention provides an ophthalmic composition which stabilizes the tear film during wearing contact lens, prevents eye dryness, imparts a favorable sensation in using, is highly convenient with no risk of misuse and shows a high efficiency in the course from manufacturing to sales. More specifically, the present invention provides a wetting solution—eye drops for contact lenses comprising (A) one or more member(s) selected from the group consisting of a cellulose-based polymer, a vinyl-based polymer, polyethylene glycol and dextran; and (B) one or more member(s) selected from the group consisting of chondroitin sulfate, alginic acid and salts thereof; and (C) a nonionic surfactant.Type: GrantFiled: September 11, 2008Date of Patent: May 19, 2015Assignee: Rohto Pharmaceutical Co., Ltd.Inventors: Yasuko Matsumura, Kazuhiro Fukushima
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Publication number: 20150064281Abstract: The present invention provides an ophthalmic composition containing (A) a biguanide-based disinfectant and (B) zinc chloride. According to the present invention, an ophthalmic composition having remarkably increased disinfection effects against Acanthamoeba is provided.Type: ApplicationFiled: April 4, 2013Publication date: March 5, 2015Applicant: ROHTO PHARMACEUTICAL CO., LTD.Inventors: Kazuhiro Fukushima, Mariyo Kato, Yoshihiro Takai, Masashi Itoh
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Publication number: 20140197003Abstract: A sliding member includes a base material portion formed of steel; a nitrogen diffusion layer with a thickness of 10 ?m to 50 ?m; and a nitrogen compound layer with a thickness of 10 ?m to 50 ?m. The nitrogen compound layer and the nitrogen diffusion layer are formed by performing a first heating process of performing heat treatment on a material formed of steel in an ammonia atmosphere at a temperature of 570° C. to 660° C., a second heating process of performing heat treatment on the material in a non-oxidizing and non-ammonia atmosphere at a temperature of 660° C. to 690° C., the temperature in the second heating process being higher than the temperature in the first heating process, and an oil cooling process of performing oil cooling treatment at an oil temperature of 60° C. to 80° C. subsequently to the second heating process.Type: ApplicationFiled: January 15, 2014Publication date: July 17, 2014Applicants: CNK Co., Ltd., JTEKT CorporationInventors: Hiroyuki ANDO, Junji ANDO, Takuya TSUDA, Shuichi TAKAHASHI, Kiyoyuki HATTORI, Kazuhiro FUKUSHIMA, Tomoyuki NANBA, Hiroshi SHIRAYANAGI
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Patent number: 8754029Abstract: The present invention provides an ophthalmic composition which stabilizes the tear film during wearing contact lens, prevents eye dryness, imparts a favorable sensation in using, is highly convenient with no risk of misuse and shows a high efficiency in the course from manufacturing to sales. More specifically, the present invention provides a wetting solution—eye drops for contact lenses comprising (A) one or more member(s) selected from the group consisting of a cellulose-based polymer, a vinyl-based polymer, polyethylene glycol and dextran; and (B) a terpenoid.Type: GrantFiled: November 15, 2012Date of Patent: June 17, 2014Assignee: Rohto Pharmaceutical Co., Ltd.Inventors: Yasuko Matsumura, Kazuhiro Fukushima
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Publication number: 20130244978Abstract: The present invention provides an ophthalmic composition which stabilizes the tear film during wearing contact lens, prevents eye dryness, imparts a favorable sensation in using, is highly convenient with no risk of misuse and shows a high efficiency in the course from manufacturing to sales. More specifically, the present invention provides a wetting solution—eye drops for contact lenses or an ophthalmic composition/solution for contact lenses, which comprises (A) one or more member(s) selected from the group consisting of a cellulose-based polymer, a vinyl-based polymer, polyethylene glycol and dextran; and (B) a terpenoid.Type: ApplicationFiled: May 8, 2013Publication date: September 19, 2013Applicant: ROHTO PHARMACEUTICAL CO., LTD.Inventors: Yasuko MATSUMURA, Kazuhiro FUKUSHIMA
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Publication number: 20110223126Abstract: The present invention provides an ophthalmic composition which stabilizes the tear film during wearing contact lens, prevents eye dryness, imparts a favorable sensation in using, is highly convenient with no risk of misuse and shows a high efficiency in the course from manufacturing to sales. More specifically, the present invention provides a wetting solution—eye drops for contact lenses comprising (A) one or more member(s) selected from the group consisting of a cellulose-based polymer, a vinyl-based polymer, polyethylene glycol and dextran; and (B) a terpenoid.Type: ApplicationFiled: May 20, 2011Publication date: September 15, 2011Inventors: Yasuko MATSUMURA, Kazuhiro Fukushima
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Publication number: 20100249062Abstract: The present invention provides an ophthalmic composition which stabilizes the tear film during wearing contact lens, prevents eye dryness, imparts a favorable sensation in using, is highly convenient with no risk of misuse and shows a high efficiency in the course from manufacturing to sales. More specifically, the present invention provides a wetting solution—eye drops for contact lenses comprising (A) one or more member(s) selected from the group consisting of a cellulose-based polymer, a vinyl-based polymer, polyethylene glycol and dextran; and (B) a glucose.Type: ApplicationFiled: September 26, 2008Publication date: September 30, 2010Inventors: Yasuko Matsumura, Kazuhiro Fukushima
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Publication number: 20100239518Abstract: The present invention provides an ophthalmic composition which stabilizes the tear film during wearing contact lens, prevents eye dryness, imparts a favorable sensation in using, is highly convenient with no risk of misuse and shows a high efficiency in the course from manufacturing to sales. More specifically, the present invention provides a wetting solution—eye drops for contact lenses comprising (A) one or more member (s) selected from the group consisting of a cellulose-based polymer, a vinyl-based polymer, polyethylene glycol and dextran; and (B) a terpenoid.Type: ApplicationFiled: September 11, 2008Publication date: September 23, 2010Inventors: Yasuko Matsumura, Kazuhiro Fukushima
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Publication number: 20100216741Abstract: The present invention provides an ophthalmic composition which stabilizes the tear film during wearing contact lens, prevents eye dryness, imparts a favorable sensation in using, is highly convenient with no risk of misuse and shows a high efficiency in the course from manufacturing to sales. More specifically, the present invention provides a wetting solution—eye drops for contact lenses comprising (A) one or more member(s) selected from the group consisting of a cellulose-based polymer, a vinyl-based polymer, polyethylene glycol and dextran; and (B) one or more member(s) selected from the group consisting of chondroitin sulfate, alginic acid and salts thereof; and (C) a nonionic surfactant.Type: ApplicationFiled: September 11, 2008Publication date: August 26, 2010Applicant: ROHTO PHARMACEUTICAL CO., LTD.Inventors: Yasuko Matsumura, Kazuhiro Fukushima
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Patent number: 4750515Abstract: A liquid storage tank having a feed port is provided with a float valve for opening and closing the same. The float valve includes a float member and a rod member having one end connected to the float member. The other end of the rod member is fitted into a valve seat, which is formed on the inner periphery of a feed pipe constituting the feed port, and is provided with a valve plug portion for opening and closing the valve seat. When the level of the liquid in the tank is lowered together with the float member, the rod member is tilted so that the valve plug portion is partially separated from the valve seat to open the feed port. When the float member is in a position at which the float member supports the rod member in a horizontal position, the valve plug portion is seated on the valve seat to close the feed port. The pressure of the supply of liquid acts on the valve plug portion to urge the valve seat portion against the valve seat.Type: GrantFiled: June 16, 1987Date of Patent: June 14, 1988Assignee: H. Ikeuchi & Co., Ltd.Inventors: Kazuhiro Fukushima, Norio Oonishi, Takeo Mizuno