Patents by Inventor Maki Hironaga
Maki Hironaga 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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Publication number: 20200392377Abstract: The present invention relates to a liquid-repellent composition containing a tetrafunctional silane-based compound having a specified structure and a trifunctional silane-based compound having a specified structure as well as a metal catalyst and satisfying a formula (I): 12?x?64, x represents a ratio of a molar amount of the component (A) to a molar amount of the component (B) (molar ratio), a liquid-repellent sheet including a liquid-repellent layer formed of the foregoing liquid-repellent composition, and production methods of the same.Type: ApplicationFiled: March 5, 2018Publication date: December 17, 2020Applicant: LINTEC CorporationInventors: Maki HIRONAGA, Sou MIYATA
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Patent number: 10273382Abstract: Provided is an antifouling composition including a tetrafunctional silane-based compound (A) having a specified structure, a trifunctional silane-based compound having a specified structure, and at least one metal catalyst (C) selected from the group consisting of a titanium-based catalyst, an aluminum-based catalyst, a tin-based catalyst, and a zinc-based catalyst, the antifouling composition satisfying the following relational expression (1). 1.5?y?2x+1??Expression (1): In the expression, x indicates the carbon number of an alkyl group that is selected for R2 in the formula (b) representing the silane-based compound (B) and indicates a number of 4 to 22; and y indicates a blending amount ratio (A)/(B) in a molar ratio of the silane-based compound (A) to the silane-based compound (B).Type: GrantFiled: January 12, 2016Date of Patent: April 30, 2019Assignee: LINTEC CORPORATIONInventors: Maki Hironaga, Sou Miyata, Yoshitomo Ono, Yutaka Nanashima, Takashi Sugino
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Patent number: 10190022Abstract: Provided is an antifouling composition including a polysilazane-based compound (A) and a both terminal carboxy-modified silicone (B), the content of the component (B) being from 0.01 to 10 parts by mass based on 100 parts by mass of the total amount of the component (A), and the antifouling composition serves as a sheet-like antifouling layer-forming material. The antifouling composition is able to form a sheet-like antifouling layer having favorable surface state and curability and also having excellent water repellency such that even when a tilt angle is small, water droplets can be slipped off.Type: GrantFiled: January 18, 2016Date of Patent: January 29, 2019Assignee: LINTEC CORPORATIONInventors: Maki Hironaga, Yumiko Amino, Sou Miyata, Yoshitomo Ono
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Publication number: 20180298231Abstract: Provided are an antifouling composition including a tetrafunctional silane-based compound (A) having a specified structure, a trifunctional silane-based compound (B) having a specified structure, and a metal catalyst (C) containing one or more metal atoms selected from titanium, aluminum, and zinc, which does not require light irradiation for revealing a catalytic action; an antifouling sheet including an antifouling layer formed of the antifouling composition; and a method for producing the same.Type: ApplicationFiled: April 26, 2016Publication date: October 18, 2018Applicant: LINTEC CorporationInventors: Maki HIRONAGA, Sou MIYATA, Yoshitomo ONO
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Publication number: 20180201796Abstract: An antifouling composition is provided. The composition includes a tetrafunctional silane-based compound having a specified structure as a component (A), trifunctional silane-based compounds having a specified structure different from each other as a component (B) and component (C), and a metal catalyst as a component (D). The composition has a molar ratio of the component (A) to the component (B) of 1.4 or more, and a molar ratio of the component (B) to a total of the components (B) and (C) of 0.020 or more. An antifouling sheet including an antifouling layer formed of the antifouling composition and a method for producing the same are also provided.Type: ApplicationFiled: July 13, 2016Publication date: July 19, 2018Applicant: LINTEC CORPORATIONInventors: Maki HIRONAGA, Sou MIYATA, Yoshitomo ONO
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Patent number: 9873801Abstract: Provided is an antifouling sheet having an antifouling layer formed of an antifouling layer-forming composition containing a specific tetrafunctional silane compound (A) and a specific trifunctional silane compound (B) wherein the content of the component (B) is 8 to 90 mol % relative to 100 mol % of the component (A), and the antifouling layer is a layer formed by drying and curing a coating film formed of the antifouling layer-forming composition, in an ammonia atmosphere. Also provided is a method for producing the antifouling sheet. The antifouling sheet is provided with an antifouling layer having good surface state and curability, has a large slip acceleration for water droppings, thereby having excellent water repellency that makes water droplets slip off instantly, and has excellent interlayer adhesiveness.Type: GrantFiled: March 26, 2015Date of Patent: January 23, 2018Assignee: LINTEC CORPORATIONInventors: Maki Hironaga, Yoshitomo Ono, Takashi Sugino
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Publication number: 20180010011Abstract: Provided is an antifouling composition including a polysilazane-based compound (A) and a both terminal carboxy-modified silicone (B), the content of the component (B) being from 0.01 to 10 parts by mass based on 100 parts by mass of the total amount of the component (A), and the antifouling composition serves as a sheet-like antifouling layer-forming material. The antifouling composition is able to form a sheet-like antifouling layer having favorable surface state and curability and also having excellent water repellency such that even when a tilt angle is small, water droplets can be slipped off.Type: ApplicationFiled: January 18, 2016Publication date: January 11, 2018Applicant: LINTEC CORPORATIONInventors: Maki HIRONAGA, Yumiko AMINO, Sou MIYATA, Yoshitomo ONO
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Publication number: 20170369738Abstract: Provided is an antifouling composition including a tetrafunctional silane-based compound (A) having a specified structure, a trifunctional silane-based compound having a specified structure, and at least one metal catalyst (C) selected from the group consisting of a titanium-based catalyst, an aluminum-based catalyst, a tin-based catalyst, and a zinc-based catalyst, the antifouling composition satisfying the following relational expression (1). 1.5?y?2x+1??Expression (1): In the expression, x indicates the carbon number of an alkyl group that is selected for R2 in the formula (b) representing the silane-based compound (B) and indicates a number of 4 to 22; and y indicates a blending amount ratio (A)/(B) in a molar ratio of the silane-based compound (A) to the silane-based compound (B).Type: ApplicationFiled: January 12, 2016Publication date: December 28, 2017Applicant: LINTEC CORPORATIONInventors: Maki HIRONAGA, Sou MIYATA, Yoshitomo ONO, Yutaka NANASHIMA, Takashi SUGINO
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Publication number: 20170107381Abstract: Provided is an antifouling sheet having an interlayer (X) containing a (poly)silazane compound and having an antifouling layer (Y) layered on the surface of the interlayer (X), wherein the layer (Y) is formed of an antifouling layer-forming composition containing a specific tetrafunctional silane compound (A) and a specific trifunctional silane compound (B), the content of the component (B) in the antifouling layer-forming composition is 8 to 90 mol % relative to 100 mol % of the component (A). The antifouling sheet is provided with an antifouling layer having good surface state and curability, has a large slip acceleration for water droplets, thereby having excellent water repellency that makes water droplets slip off instantly, and has excellent interlayer adhesiveness.Type: ApplicationFiled: March 26, 2015Publication date: April 20, 2017Applicants: LINTEC CORPORATION, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Maki HIRONAGA, Yoshitomo ONO, Takashi SUGINO, Sou MIYATA, Kazumi ITO, Atsushi HOZUMI, Chihiro URATA
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Publication number: 20170101543Abstract: Provided is an antifouling sheet having an antifouling layer formed of an antifouling layer-forming composition containing a specific tetrafunctional silane compound (A) and a specific trifunctional silane compound (B) wherein the content of the component (B) is 8 to 90 mol % relative to 100 mol % of the component (A), and the antifouling layer is a layer formed by drying and curing a coating film formed of the antifouling layer-forming composition, in an ammonia atmosphere. Also provided is a method for producing the antifouling sheet. The antifouling sheet is provided with an antifouling layer having good surface state and curability, has a large slip acceleration for water droppings, thereby having excellent water repellency that makes water droplets slip off instantly, and has excellent interlayer adhesiveness.Type: ApplicationFiled: March 26, 2015Publication date: April 13, 2017Applicant: LINTEC CORPORATIONInventors: Maki HIRONAGA, Yoshitomo ONO, Takashi SUGINO
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Publication number: 20110182954Abstract: An orally-administered agent is provided. The orally-administered agent comprises an intestinal medicine-containing layer containing a medicine to be released in intestines and having surfaces; intestinal collapse-controlling layers provided directly or through an arbitrary layer on the surfaces of the intestinal medicine-containing layer, respectively, at least a part of the intestinal collapse-controlling layers being collapsed in the intestines, and each of the intestinal collapse-controlling layers having a surface opposite to the intestinal medicine-containing layer; and gel-forming layers provided directly or through an arbitrary layer on the sides of the surfaces of the intestinal collapse-controlling layers, respectively, wherein the gel-forming layers are swelled and gelatinized by absorbing water to form a gel. The intestinal collapse-controlling layers are constituted of a material containing an enteric material to be dissolved by being in contact with a body fluid in the intestines.Type: ApplicationFiled: September 15, 2009Publication date: July 28, 2011Applicant: LINTEC CorporationInventors: Akira Takahashi, Yusaku Sugiura, Maki Hironaga, Akio Kabuto, Eiji Suzuki
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Publication number: 20110027325Abstract: An orally-administered agent according to the present invention comprises: a medicine-containing layer containing a medicine and having surfaces; collapse-controlling layers respectively provided on the surfaces of the medicine-containing layer; and gel-forming layers respectively provided on the collapse-controlling layers, wherein the gel-forming layers are swelled and gelatinized by absorbing water to form a gel. The collapse-controlling layers are constituted of a material containing a stomach-soluble material to be dissolved by being in contact with gastric juice. The orally-administered agent according to the present invention can be swallowed with ease and release the medicine in intended parts, in particular, the stomach of a living body.Type: ApplicationFiled: March 9, 2009Publication date: February 3, 2011Applicant: Lintec CorporationInventors: Yusaku Sugiura, Akira Takahashi, Maki Hironaga, Akio Kabuto, Eiji Suzuki