Patents by Inventor Yutaka Onozawa
Yutaka Onozawa 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: 8333478Abstract: A film includes a cured resin layer (A) of a curable composition containing an active energy ray curable compound and a microparticle dispersed therein and a cured resin layer (B) of a curable composition containing an active energy ray curable compound and a microparticle dispersed therein laminated in order on at least one surface of a light-transmitting substrate film, wherein the total film thickness of layer (A) and layer (B) is 1 to 10 ?m, a microparticle (a) having an average particle size of 0.5 to 10 ?m is compounded in layer (A) in an amount of 0.5 to 60 parts by mass to 100 parts by mass of an active energy ray curable compound, and a microparticle (b) having an average particle size which is less than an average particle size of the microparticle (a) is compounded in layer (B).Type: GrantFiled: May 27, 2008Date of Patent: December 18, 2012Assignee: Lintec CorporationInventors: Yutaka Onozawa, Satoru Shoshi
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Publication number: 20100208352Abstract: The present invention provides a which comprises a cured resin layer (A) of a curable composition containing an active energy ray curable compound and a microparticle dispersed therein and a cured resin layer (B) of a curable composition containing an active energy ray curable compound and a microparticle dispersed therein, and the layer (A) and the layer (B) being laminated in order on at least one surface of a light-transmitting substrate film, wherein a total film thickness of the layer (A) and the layer (B) is 1 to 10 ?m, a microparticle A having an average particle size of 0.5 to 10 ?m is compounded in the layer (A) in an amount of 0.5 to 60 parts by mass to 100 parts by mass of an active energy ray curable compound, and a microparticle B having an average particle size which is less than an average particle size of the microparticle A is compounded in the layer (B).Type: ApplicationFiled: May 27, 2008Publication date: August 19, 2010Applicant: LINTEC CorporationInventors: Yutaka Onozawa, Satoru Shoshi
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Publication number: 20100178469Abstract: The present invention provides a glare-proofing and light-transmitting hard coat film, which comprises a cured resin layer (A) of a curable composition containing an active energy ray curable compound and a microparticle dispersed therein and a cured resin layer (B) of a curable composition containing an active energy ray curable compound and a microparticle dispersed therein, and the layer (A) and the layer (B) being laminated in order on at least one surface of a light-transmitting substrate film, wherein a center line average roughness (Ra(B)) of a surface of the layer (B) after the layer (B) is laminated, is smaller by 1 ?m or more than a center line average roughness (Ra(A)) of a surface of the layer (A) before the layer (B) is laminated, and a haze value (Hz(B)) of a film after the layer (B) is laminated, is smaller by 1.5% or more than a haze value (Hz(A)) of a film after only the layer (A) is laminated and before the layer (B) is laminated.Type: ApplicationFiled: May 27, 2008Publication date: July 15, 2010Applicant: LINTEC CORPORATIONInventors: Yutaka Onozawa, Satoru Shoshi
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Patent number: 7119959Abstract: A film for optical applications which effectively prevents reflection of light on the surface of image display devices such as PDP, CRT and LCD, exhibits excellent scratch resistance and transmission of light, provides excellent adhesion between layers and can be produced at a low cost is disclosed. The film comprises (A) a high refractivity hard coat layer (the refractive index: 1.60 to 1.75, the thickness: 2 to 20 ?m) comprising (a) an antimony-doped tin oxide having a needle shape (the average particle diameter along the major axis: 0.05 to 10 ?m, the average aspect ratio: 3 to 100), (b) at least one other metal oxide and (c) a material cured with an ionizing radiation and (B) a low refractivity layer (the refractive index: 1.30 to 1.45, the thickness: 40 to 200 nm), which are successively laminated at least on one face of a substrate film.Type: GrantFiled: March 28, 2004Date of Patent: October 10, 2006Assignee: Lintec CorporationInventors: Satoru Shoshi, Yutaka Onozawa
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Publication number: 20060171034Abstract: A film for optical applications which effectively prevents reflection of light on the surface of image display devices such as PDP, CRT and LCD, exhibits excellent scratch resistance and transmission of light, provides excellent adhesion between layers and can be produced at a low cost is disclosed. The film comprises (A) a high refractivity hard coat layer (the refractive index: 1.60 to 1.75, the thickness: 2 to 20 ?m) comprising (a) an antimony-doped tin oxide having a needle shape (the average particle diameter along the major axis: 0.05 to 10 ?m, the average aspect ratio: 3 to 100), (b) at least one other metal oxide and (c) a material cured with an ionizing radiation and (B) a low refractivity layer (the refractive index: 1.30 to 1.45, the thickness: 40 to 200 nm), which are successively laminated at least on one face of a substrate film.Type: ApplicationFiled: March 28, 2004Publication date: August 3, 2006Inventors: Satoru Shoshi, Yutaka Onozawa
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Publication number: 20060099385Abstract: A material for forming an antiglare hard coat layer which comprises (A) a polymerizable compound of an active energy beam curing type, (B) a thermoplastic resin, (C) a good solvent for (A) and (B), and (D) a poor solvent for (B), wherein the ratio of amounts by weight of (A) to (B) is 100:0.3 to 100:50 and the ratio of amounts by weight of (C) to (D) is 99:1 to 30:70; and an antiglare hard coat film which comprises an antiglare hard coat layer comprising a layer of an active energy beam-cured resin formed by using the above material and disposed on a substrate film. The hard coat film contains no fine particles or a decreased amount of fine particles for providing the antiglare property and exhibits highly fine antiglare property, stable optical properties and excellent scratch resistance.Type: ApplicationFiled: October 20, 2005Publication date: May 11, 2006Applicant: LINTEC CORPORATIONInventors: Yutaka Onozawa, Satoru Shoshi
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Patent number: 6887557Abstract: An anti-static hard coat film is easy to manufacture, has a high total light transmission, achieves favorable viewability for displayed images, and has a superior balance between an anti-static effect and a resistance to scratch. A hard coat layer made of an ionizing radiation-curable resin and an anti-static layer, which is about 0.03 to 2 ?m thick and is made of ionizing radiation-curable resin that includes anti-static particles with an average particle diameter of about 0.01 to 2 ?m, are formed in order on a base film, and the Taber abrasion resistance is set at 25 or below as measured in accordance with JIS K5400.Type: GrantFiled: July 18, 2002Date of Patent: May 3, 2005Assignee: Lintec CorporationInventors: Yutaka Onozawa, Satoru Shoshi, Shigenobu Maruoka
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Patent number: 6859322Abstract: A film for optical applications comprising (A) a hard coat layer which comprises a resin cured by an ionizing radiation, (B) a high refractivity layer I which comprises a resin cured by an ionizing radiation and a metal oxide and has a refractive index in a range of 1.70 to 1.95, (C) a high refractivity layer II which comprises a resin cured by an ionizing radiation and a metal oxide and has a refractive index in a range of 1.60 to 1.70 and (D) a low refractivity layer which comprises a siloxane-based polymer and has a refractive index in a range of 1.37 to 1.47, layers (A) to (D) having specific thicknesses and being successively laminated at least on one face of a substrate film. The film exhibits an excellent property for preventing reflection of light and excellent scratch resistance and can be produced at a low cost.Type: GrantFiled: February 27, 2002Date of Patent: February 22, 2005Assignee: Lintec CorporationInventors: Satoru Shoshi, Yutaka Onozawa, Shigenobu Maruoka
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Patent number: 6841272Abstract: A film for optical applications comprising (A) a hard coat layer which comprises a metal oxide and a substance cured by heat or by an ionizing radiation and has a thickness in a range of 2 to 20 ?m and (B) a low refractivity layer which comprises porous silica and a polysiloxane-based polymer and has a refractive index in a range of 1.30 to 1.45 and a thickness in a range of 40 to 200 nm, layers (A) and (B) being successively laminated at least on one face of a substrate film. The film exhibits an excellent property for preventing reflection of light and excellent scratch resistance and can be produced at a low cost.Type: GrantFiled: October 23, 2002Date of Patent: January 11, 2005Assignee: Lintec CorporationInventors: Satoru Shoshi, Yutaka Onozawa, Shigenobu Maruoka, Yoshitaka Takesako
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Patent number: 6787236Abstract: Provided is a hard coat film which has an inorganic hard coat layer having excellent scratch resistance and weatherability and inhibited from generation of curling and which is particularly suited for sticking on outside faces of window glasses in lofty buildings. The hard coat film is prepared by laminating in order a primer layer and a hard coat layer comprising metal oxide particles and a cured matter of a silane compound on one face of a base material and further providing, if necessary, a coating layer having various functions on the above hard coat layer.Type: GrantFiled: July 11, 2002Date of Patent: September 7, 2004Assignee: LINTEC CorporationInventors: Tatsuya Kimura, Yutaka Onozawa, Tomoo Ohrui, Toshio Sugizaki
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Patent number: 6773778Abstract: A hard coat film is providend, having excellent resistance to impact and weather, and high surface hardness, which is suitable for being stuck on the external surfaces, e.g., those of window panes or plastic boards for windows. In the hard coat film, a silicon-base hard coat layer is provided on one side of a multi-layered base composed of a plurality of the same or different laminated resin films.Type: GrantFiled: June 27, 2001Date of Patent: August 10, 2004Assignee: Lintec CorporationInventors: Yutaka Onozawa, Toshio Sugizaki, Satoshi Sakurai
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Patent number: 6773835Abstract: A film for optical applications comprising (A) a hard coat layer which comprises a resin cured by an ionizing radiation, (B) a high refractivity layer which comprises a resin cured by an ionizing radiation and at least two metal oxides comprising tin oxide doped with antimony and has a refractive index in a range of 1.65 to 1.80 and (C) a low refractivity layer which comprises a siloxane-based polymer and has a refractive index in a range of 1.37 to 1.47, layers (A) to (D) each having a specific thickness and being successively laminated at least on one face of a substrate film. The film exhibits an excellent property for preventing reflection of light and excellent scratch resistance and can be produced at a low cost.Type: GrantFiled: April 29, 2002Date of Patent: August 10, 2004Assignee: Lintec CorporationInventors: Satoru Shoshi, Yutaka Onozawa, Shigenobu Maruoka
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Patent number: 6613426Abstract: A very fine anti-glare hard coat film which comprises a base film and a hard coat layer disposed on the base film and has a haze of 3% or greater, wherein the hard coat layer comprises (A) a resin cured by an ionizing radiation and, per 100 parts by weight of the resin, 2 to 25 parts by weight of (B) silica particles having an average diameter of 0.5 to 5 &mgr;m and 10 to 200 parts by weight of (C) fine particles having an average diameter of 1 to 60 nm. The very fine anti-glare hard coat film provides excellent visibility when the film is used for various types of displays since the film provides an excellent anti-glare property to the displays such as very fine liquid crystal displays without deterioration in the quality of displayed images.Type: GrantFiled: June 4, 2001Date of Patent: September 2, 2003Assignee: Lintec CorporationInventors: Yutaka Onozawa, Shigenobu Maruoka, Satoru Shoshi
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Publication number: 20030104188Abstract: A film for optical applications comprising (A) a hard coat layer which comprises a metal oxide and a substance cured by heat or by an ionizing radiation and has a thickness in a range of 2 to 20 &mgr;m and (B) a low refractivity layer which comprises porous silica and a polysiloxane-based polymer and has a refractive index in a range of 1.30 to 1.45 and a thickness in a range of 40 to 200 nm, layers (A) and (B) being successively laminated at least on one face of a substrate film. The film exhibits an excellent property for preventing reflection of light and excellent scratch resistance and can be produced at a low cost.Type: ApplicationFiled: October 23, 2002Publication date: June 5, 2003Applicant: LINTEC CORPORATIONInventors: Satoru Shoshi, Yutaka Onozawa, Shigenobu Maruoka, Yoshitaka Takesako
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Publication number: 20030096119Abstract: Provided is a hard coat film which has an inorganic hard coat layer having excellent scratch resistance and weatherability and inhibited from generation of curling and which is particularly suited for sticking on outside faces of window glasses in lofty buildings. The hard coat film is prepared by laminating in order a primer layer and a hard coat layer comprising metal oxide particles and a cured matter of a silane compound on one face of a base material and further providing, if necessary, a coating layer having various functions on the above hard coat layer.Type: ApplicationFiled: July 11, 2002Publication date: May 22, 2003Applicant: LINTEC CORPORATIONInventors: Tatsuya Kimura, Yutaka Onozawa, Tomoo Ohrui, Toshio Sugizaki
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Publication number: 20030087087Abstract: An anti-static hard coat film is easy to manufacture, has a high total light transmission, achieves favorable viewability for displayed images, and has a superior balance between an anti-static effect and a resistance to scratch. A hard coat layer made of an ionizing radiation-curable resin and an anti-static layer, which is about 0.03 to 2 &mgr;m thick and is made of ionizing radiation-curable resin that includes anti-static particles with an average particle diameter of about 0.01 to 2 &mgr;m, are formed in order on a base film, and the Taber abrasion resistance is set at 25 or below as measured in accordance with JIS K5400.Type: ApplicationFiled: July 18, 2002Publication date: May 8, 2003Applicant: LINTEC CORPORATIONInventors: Yutaka Onozawa, Satoru Shoshi, Shigenobu Maruoka
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Publication number: 20020187324Abstract: A film for optical applications comprising (A) a hard coat layer which comprises a resin cured by an ionizing radiation, (B) a high refractivity layer which comprises a resin cured by an ionizing radiation and at least two metal oxides comprising tin oxide doped with antimony and has a refractive index in a range of 1.65 to 1.80 and (C) a low refractivity layer which comprises a siloxane-based polymer and has a refractive index in a range of 1.37 to 1.47, layers (A) to (D) each having a specific thickness and being successively laminated at least on one face of a substrate film. The film exhibits an excellent property for preventing reflection of light and excellent scratch resistance and can be produced at a low cost.Type: ApplicationFiled: April 29, 2002Publication date: December 12, 2002Applicant: LINTEC CORPORATIONInventors: Satoru Shoshi, Yutaka Onozawa, Shigenobu Maruoka
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Publication number: 20020176169Abstract: A film for optical applications comprising (A) a hard coat layer which comprises a resin cured by an ionizing radiation, (B) a high refractivity layer I which comprises a resin cured by an ionizing radiation and a metal oxide and has a refractive index in a range of 1.70 to 1.95, (C) a high refractivity layer II which comprises a resin cured by an ionizing radiation and a metal oxide and has a refractive index in a range of 1.60 to 1.70 and (D) a low refractivity layer which comprises a siloxane-based polymer and has a refractive index in a range of 1.37 to 1.47, layers (A) to (D) having specific thicknesses and being successively laminated at least on one face of a substrate film.Type: ApplicationFiled: February 27, 2002Publication date: November 28, 2002Applicant: LINTEC CORPORATIONInventors: Satoru Shoshi, Yutaka Onozawa, Shigenobu Maruoka
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Patent number: 6383625Abstract: An antifouling infrared shielding film comprising a transparent substrate film having, on one face thereof, at least an infrared shielding layer which comprises a cured product of a coating layer comprising (A) an ionizing radiation curing resin, (B) an infrared absorbent and (C) an ionizing radiation curing silicone resin in an amount of 0.1 to 50 parts by weight per 100 parts by weight of the resin of the ionizing radiation curing resin of (A); and a process for producing an antifouling infrared shielding film comprising coating one face of a transparent substrate film with a coating agent comprising the component (A), the component (B) and the component (C) in an amount of 0.1 to 50 parts by weight per 100 parts by weight of the component (A) to form a coating layer and curing the formed coating layer by irradiation of an ionizing radiation.Type: GrantFiled: January 18, 2000Date of Patent: May 7, 2002Assignee: Lintec CorporationInventors: Satoru Shoshi, Yutaka Onozawa, Shunpei Watanabe
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Publication number: 20020028328Abstract: A very fine anti-glare hard coat film which comprises a base film and a hard coat layer disposed on the base film and has a haze of 3% or greater, wherein the hard coat layer comprises (A) a resin cured by an ionizing radiation and, per 100 parts by weight of the resin, 2 to 25 parts by weight of (B) silica particles having an average diameter of 0.5 to 5 &mgr;m and 10 to 200 parts by weight of (C) fine particles having an average diameter of 1 to 60 nm.Type: ApplicationFiled: June 4, 2001Publication date: March 7, 2002Applicant: LINTEC CORPORATIONInventors: Yutaka Onozawa, Shigenobu Maruoka, Satoru Shoshi