Patents by Inventor Hirokazu Kurome
Hirokazu Kurome 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: 5882784Abstract: A metal-film laminate including a metal plate and a biaxially oriented polyester-group film laminated on the metal plate. The orientation degree of the film is controlled such that, when the thickness of the film is represented by T and the mean orientation degree of the film in the area from the metal-plate side surface to a position of T/2 in the thickness direction of the film is represented by X, the orientation degree of the film in the area from the metal-plate side surface to the position of T/2 is in the range of X.+-.0.5X and an orientation degree of the film at the non-metal-plate side surface is not less than 2X. When the metal-film laminate is processed by drawing etc., an excellent drawing property and an excellent impact resistance of an obtained metal-film laminated product can be achieved.Type: GrantFiled: August 19, 1997Date of Patent: March 16, 1999Assignee: Toray Industries, Inc.Inventors: Takashi Sumiya, Iwao Tanaka, Kunio Shibatsuji, Hirokazu Kurome, Seiya Sugiura, Wataru Ooe
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Patent number: 5747174Abstract: Disclosed is a biaxially oriented, laminated polyester film having a Young's modulus of 10-250 kg/mm.sup.2 and formed by laminating layers of polyester B on both surfaces of a layer of polyester A whose main constituent is an ethylene terephthalate having a glass transition temperature of not higher than 50.degree. C. This film not only has characteristics that the conventional polyester films do not possess, such as impact resistance, resistance to pinhole generation and low-temperature performance, but also is excellent in flexibility.Type: GrantFiled: January 15, 1997Date of Patent: May 5, 1998Assignee: Toray Industries, Inc.Inventors: Masahiro Kimura, Kohzo Takahashi, Naotake Kashiwakura, Kenji Tsunasima, Hirokazu Kurome
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Patent number: 5698308Abstract: Disclosed is a polyester film for use of a laminate with a metal plate comprising a polyester=group resin containing a white pigment having a mean particle diameter of 0.01 to 1.8 .mu.m at a content of 10 to 30% by weight. The film has (a) a void ratio of 4 to 30%, (b) a melting peak temperature of 150.degree. to 245.degree. C., (c) an amount of oligomer of not more than 3% by weight and (d) an orientation degree of 0.7 to 4.0. When the film is laminated on a metal, it can indicate excellent light interruptive property, lamination property, forming property and processing property.Type: GrantFiled: March 28, 1996Date of Patent: December 16, 1997Assignee: Toray Industries, Inc.Inventors: Takashi Sumiya, Iwao Tanaka, Kunio Shibatsuji, Hirokazu Kurome, Seiya Sugiura, Wataru Ooe
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Patent number: 5591518Abstract: Disclosed is a polyester film for use of a laminate with a metal plate comprising a polyester-group resin containing a white pigment having a mean particle diameter of 0.01 to 1.8 .mu.m at a content of 10 to 30% by weight. The film has (a) a void ratio of 4 to 30%, (b) a melting peak temperature of 150.degree. to 245.degree. C., (c) an amount of oligomer of not more than 3% by weight and (d) an orientation degree of 0.7 to 4.0. When the film is laminated on a metal, it can indicate excellent light interruptive property, lamination property, forming property and processing property.Type: GrantFiled: May 25, 1995Date of Patent: January 7, 1997Assignee: Toray Industries, Inc.Inventors: Takashi Sumiya, Iwao Tanaka, Kunio Shibatsuji, Hirokazu Kurome, Seiya Sugiura, Wataru Ooe
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Patent number: 5292471Abstract: A polyester film, which is substantially non-oriented and whose main component is polyethylene terephthalate, is formed into a shape for example, a package, at a condition causing no yield point. The formation ability of the polyester film for forming is improved, and a formed body having a good uniformity in thickness can be obtained. Further, the range of the temperature condition causing no yield point can be enlarged by laminating a PET-system polyester, which originally tends to cause a yield point by itself, onto a polyester having no yield point. In such a laminated polyester film, the slipping property and releasing property from a mold of the film can be improved by specifying the ranges of the degree of crystallinity of each layer, the adhesive force at a high temperature of the film and the surface roughness of the film, and the shape of a formed body can be improved.Type: GrantFiled: June 9, 1993Date of Patent: March 8, 1994Assignee: Toray Industries, Inc.Inventors: Tatsuya Ito, Kenji Tsunashima, Hideyuki Yamauchi, Seizo Aoki, Hirokazu Kurome
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Patent number: 5270160Abstract: A polyester film comprising a polyester whose dicarboxylic acid copolymerized component contains (i) an aromatic dicarboxylic acid having a metal sulfonate and/or a derivative thereof and (ii) a polyetherdicarboxylic acid represented by the following chemical formula (a) and having a mean molecular weight in the range of 600 to 20000 and/or a derivative thereof.R.sup.1 OOCCH.sub.2 --(O--R.sup.2).sub.n --OCH.sub.2 COOR.sup.3(a)Where, "R.sup.1 " and "R.sup.3 " are alkyl groups each having a carbon number of 1 to 8, "R.sup.2 " is alkylene group having a carbon number of 2 to 8 and "n" is a positive integer. The polyester film has excellent transparency, mechanical properties and dimensional stability such as those of a PET film and an excellent water absorption property such as that of a TAC film.Type: GrantFiled: December 23, 1992Date of Patent: December 14, 1993Assignee: Toray Industries, Inc.Inventors: Toshihiko Hiraoka, Kenji Tsunashima, Masaru Suzuki, Takashi Mimura, Hirokazu Kurome
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Patent number: 5215825Abstract: A polyester film comprising a polyester whose dicarboxylic acid copolymerized component contains (i) an aromatic dicarboxylic acid having a metal sulfonate and/or a derivative thereof and (ii) a polyetherdicarboxylic acid represented by the following chemical formula (a) and having a mean molecular weight in the range of 600 to 20000 and/or a derivative thereof.R.sup.1 OOCCH.sub.2 --(O--R.sup.2).sub.n --OCH.sub.2 COOR.sup.3 (a)Where, "R.sup.1 " and "R.sup.3 " are H or alkyl groups each having a carbon number of 1 to 8, "R.sup.2 " is alkylene group having a carbon number of 2 to 8 and "n" is a positive integer. The polyester film has excellent transparency, mechanical properties and dimensional stability such as those of a PET film and an excellent water absorption property such as that of a TAC film.Type: GrantFiled: December 18, 1991Date of Patent: June 1, 1993Assignee: Toray Industries, Inc.Inventors: Toshihiko Hiraoka, Kenji Tsunashima, Masaru Suzuki, Takashi Mimura, Hirokazu Kurome