Patents by Inventor Makio Tokoh
Makio Tokoh 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: 9431560Abstract: An object of the present invention is to provide a film that is used as one layer of a multilayer structure articles such as a laminated glass, and a solar cell module, and prevents the intrusion of bubbles and the generation of unfilled portions at the edge portions of the film; and a multilayer structure articles obtained with the use of the film. A polyvinyl acetal resin film, having a thickness distribution in the width direction of 10% or less, and a volatile matter content of 1.0 mass % or less, in which as to a portion of 5% of the total width inside from each of both edges in the width direction, when each portion is heated at 150° C. for 30 minutes, the larger value of the heat shrinkage in the flow direction that is parallel to the film and perpendicular to the width direction is referred to as heat shrinkage MD1, and the other value is referred to as heat shrinkage MD2, and when central portion in the width direction of the film is heated at 150° C.Type: GrantFiled: March 29, 2012Date of Patent: August 30, 2016Assignee: KURARAY CO., LTD.Inventors: Hidemasa Oda, Takashi Mukose, Makio Tokoh
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Publication number: 20140020759Abstract: An object of the present invention is to provide a film that is used as one layer of a multilayer structure articles such as a laminated glass, and a solar cell module, and prevents the intrusion of bubbles and the generation of unfilled portions at the edge portions of the film; and a multilayer structure articles obtained with the use of the film. A polyvinyl acetal resin film, having a thickness distribution in the width direction of 10% or less, and a volatile matter content of 1.0 mass % or less, in which as to a portion of 5% of the total width inside from each of both edges in the width direction, when each portion is heated at 150° C. for 30 minutes, the larger value of the heat shrinkage in the flow direction that is parallel to the film and perpendicular to the width direction is referred to as heat shrinkage MD1, and the other value is referred to as heat shrinkage MD2, and when central portion in the width direction of the film is heated at 150° C.Type: ApplicationFiled: March 29, 2012Publication date: January 23, 2014Applicant: KURARAY CO., LTD.Inventors: Hidemasa Oda, Takashi Mukose, Makio Tokoh
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Publication number: 20120204940Abstract: It is an object of the present invention to provide a laminate of a layer that contains a polyvinyl acetal and a layer that contains a polyolefin (hydrocarbon polymer), which exhibits excellent adhesion between the layers. The present invention relates to a laminate obtained by laminating a layer A that includes a composition A containing a polyvinyl acetal and a layer B that includes a composition B containing a polyolefin and/or an adhesive functional group-containing olefinic polymer, wherein a mass ratio of (the polyolefin)/(the adhesive functional group-containing olefinic polymer) is 0/100 to 99.95/0.05.Type: ApplicationFiled: August 4, 2010Publication date: August 16, 2012Applicant: KURARAY CO., LTD.Inventors: Yoshiaki Asanuma, Makio Tokoh, Koichiro Isoue
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Patent number: 8076433Abstract: Provided are a polyoxyalkylene modified vinyl alcohol-based polymer, including a polyoxyalkylene group in side chain, wherein the vinyl alcohol-based polymer has a viscosity average degree of polymerization P of from 200 to 5000, has a degree of saponification of from 20 to 99.99 mol %, and has an amount S of polyoxyalkylene modification of from 0.1 to 10 mol % and a film containing the same. By way of them, a polyvinyl alcohol-based polymer that is soluble in water and also high in viscosity, and a film that is less in a decrease of tensile elastic modulus when conditioned in high humidity, is excellent in water repellency on the film surface, and exhibits water solubility are provided.Type: GrantFiled: August 25, 2009Date of Patent: December 13, 2011Assignee: Kuraray Co., Ltd.Inventors: Shinsuke Nii, Masato Nakamae, Makio Tokoh
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Patent number: 7968639Abstract: The present invention provides a polyvinyl acetal powder which is excellent in flowability during the coating process when it is applied to a powder coating material. This polyvinyl acetal powder enables to obtain a coating film having good impact resistance and uniformity of thickness (uniformity of coating film thickness). The present invention also provides a powder coating material using the polyvinyl acetal powder. Specifically, the present invention is a polyvinyl acetal powder having an average particle diameter of 10 to 150 ?m, a maximum particle diameter of 250 ?m or less, and a melt flow rate of 1 to 200 g/10 min. as measured in accordance with JIS K7210: 1999. The present invention also is a powder coating material containing this polyvinyl acetal powder.Type: GrantFiled: April 26, 2007Date of Patent: June 28, 2011Assignee: Kuraray Co., Ltd.Inventors: Seiji Tanimoto, Koichiro Isoue, Makio Tokoh, Tamotsu Miura
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Publication number: 20100280202Abstract: Provided are a polyoxyalkylene modified vinyl alcohol-based polymer, including a polyoxyalkylene group in side chain, wherein the vinyl alcohol-based polymer has a viscosity average degree of polymerization P of from 200 to 5000, has a degree of saponification of from 20 to 99.99 mol %, and has an amount S of polyoxyalkylene modification of from 0.1 to 10 mol % and a film containing the same. By way of them, a polyvinyl alcohol-based polymer that is soluble in water and also high in viscosity, and a film that is less in a decrease of tensile elastic modulus when conditioned in high humidity, is excellent in water repellency on the film surface, and exhibits water solubility are provided.Type: ApplicationFiled: August 25, 2009Publication date: November 4, 2010Applicant: Kuraray Co., Ltd.Inventors: Shinsuke Nii, Masato Nakamae, Makio Tokoh
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Publication number: 20090311547Abstract: The present invention provides a polyvinyl acetal powder which is excellent in flowability during the coating process when it is applied to a powder coating material. This polyvinyl acetal powder enables to obtain a coating film having good impact resistance and uniformity of thickness (uniformity of coating film thickness). The present invention also provides a powder coating material using the polyvinyl acetal powder. Specifically, the present invention is a polyvinyl acetal powder having an average particle diameter of 10 to 150 ?m, a maximum particle diameter of 250 ?m or less, and a melt flow rate of 1 to 200 g/10 min. as measured in accordance with JIS K7210: 1999. The present invention also is a powder coating material containing this polyvinyl acetal powder.Type: ApplicationFiled: April 26, 2007Publication date: December 17, 2009Applicant: KURARAY CO., LTD.Inventors: Seiji Tanimoto, Koichiro Isoue, Makio Tokoh, Tamotsu Miura
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Patent number: 5428094Abstract: A resin composition comprising an ethylene-vinyl alcohol copolymer (EVOH) having an ethylene content of 20 to 60 mol % and a water-swellable phyllosilicate, said water-swellable phyllosilicate being dispersed in the EVOH with a basal spacing satisfying the following condition (I)(x-y).gtoreq.2 (I)wherein x represents the basal spacing in angstrom of the water-swellalble phyllosilicate dispersed in EVOH and y represents the basal spacing in angstrom of dry powder of the water-swellable phyllosilicate.The resin compositions of the invention are useful in the manufacture of plastic films and containers for food packaging.Type: GrantFiled: October 21, 1993Date of Patent: June 27, 1995Assignee: Kuraray Co., Ltd.Inventors: Makio Tokoh, Satoshi Hirofuji
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Patent number: 5221566Abstract: A multilayered container comprising an intermediate layer of a resin composition (A) which comprises 50-95% by weight of a specific EVOH, and 50-5% by weight of an inorganic filler, and inner and outer layers of a moisture resistant thermoplastic resin (B), at least the body wall part of the container comprising multiplicity of regions in which substantially 2-dimensional thin layers of the inorganic filler extend parallel with the wall surface and laminated with each other, said layer of said resin composition (A) having a specific moisture permeability.The multilayered container can readily be prepared by thermoforming from the corresponding multilayered structure.Type: GrantFiled: March 19, 1992Date of Patent: June 22, 1993Assignee: Kuraray Co., Ltd.Inventors: Makio Tokoh, Akimasa Aoyama, Toshiaki Sato, Taichi Negi, Hidemasa Oda, Satoshi Hirofuji