Patents by Inventor Masakazu Iwasaki
Masakazu Iwasaki 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: 9005766Abstract: The invention provides a biaxially-oriented polyester film that comprises a biaxially oriented polyethylene terephthalate film and contains 9000 ppm or less of ethylene terephthalate cyclic trimer, has a molten specific resistance of within 1.0×108?·cm, and at least one surface of the film has a surface resistivity of 13 log ? or less under a relative humidity of 65 %. The invention also provides a wrap-around label for a container produced from the film.Type: GrantFiled: June 1, 2010Date of Patent: April 14, 2015Assignee: Toyo Boseki Kabushiki KaishaInventors: Hideki Ito, Masakazu Iwasaki
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Patent number: 8993109Abstract: Disclosed is a void-containing heat-shrinkable polyester film which is composed of at least two layers, wherein at least one of the layers is a polyester resin layer comprising a cyclic polyolefin resin and containing voids. The film has an apparent specific gravity of less than 1.00 and has specified heat shrinking properties and mechanical properties. Also disclosed is a void-containing heat-shrinkable polyester film as mentioned above, which exhibits specified cuttability along a perforation. Further disclosed is a process for producing a void-containing heat-shrinkable polyester film as mentioned above.Type: GrantFiled: June 14, 2010Date of Patent: March 31, 2015Assignee: Toyo Boseki Kabushiki KaishaInventors: Shigetomo Yamamoto, Masayuki Haruta, Yukinobu Mukoyama, Masakazu Iwasaki
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Patent number: 8911839Abstract: Disclosed is a heat shrinkable polyester multilayer film having excellent transparency, gloss and workability, which can be produced easily. Specifically disclosed is a heat shrinkable polyester film having a haze value of not more than 2%, a glossiness at a measurement angle of 45° of not less than 200% in at least one side of the film, and a dynamic coefficient friction between one side of the film and the other side of the film of not more than 1.5. The heat shrinkable polyester film also has a shrinkage in the main shrinking direction of not less than 50% when immersed in hot water of 95° C. for 10 seconds and a surface resistivity of not more than 13 log ? at a relative humidity of 65%.Type: GrantFiled: August 7, 2009Date of Patent: December 16, 2014Assignee: Toyo Boseki Kabushiki KaishaInventors: Hideki Ito, Masakazu Iwasaki
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Patent number: 8685305Abstract: The invention aims at providing a heat-shrinkable polyester film which is excellent in tearability along perforations and in break resistance after storage when used as labels of beverage bottles. The invention relates to a heat-shrinkable polyester film which is made of a polyester resin comprising ethylene terephthalate as the main constituent and containing at least 13 mol % of at least one monomer capable of forming an amorphous component in the whole polyester resin component and which has specific heat shrinkage characteristics and exhibits specific mechanical characteristics after heat shrinking treatment. The film can be produced by a sequential biaxial orientation process comprising longitudinal orientation step, intermediate heat treatment step, positive cooling step, transverse orientation step, and final heat treatment step.Type: GrantFiled: September 24, 2008Date of Patent: April 1, 2014Assignee: Toyo Boseki Kabushiki KaishaInventors: Masayuki Haruta, Masatoshi Hashimoto, Masakazu Iwasaki, Katsuhiko Nose
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Patent number: 8206797Abstract: A heat-shrinkable polyester film is obtained which is extremely satisfactory in openability along a perforation, has exceedingly high productivity, and is less apt to split in the lengthwise direction in processing, e.g., printing. Provided is a label which is formed from the heat-shrinkable film and is satisfactorily tearable. The label is one formed from a tubular material which comprises as a base a heat-shrinkable film thermally shrinking mainly in the film width direction and which has been cut according to an object to be packaged, both edges in the film width direction having been bonded to each other. The tubular material has been thermally shrunk to constitute the label, with which at least part of the periphery of the object to be packaged is covered. The label has an angle tear strength in the direction perpendicular to the main shrinkage direction (i.e., in the film length direction) of 100-310 N/mm and a tensile break strength in the direction perpendicular to the main shrinkage direction (i.e.Type: GrantFiled: December 11, 2008Date of Patent: June 26, 2012Assignee: Toyo Boseki Kabushiki KaishaInventors: Masayuki Haruta, Masatoshi Hashimoto, Masakazu Iwasaki, Katsuhiko Nose
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Publication number: 20120100363Abstract: Disclosed is a void-containing heat-shrinkable polyester film which is composed of at least two layers, wherein at least one of the layers is a polyester resin layer comprising a cyclic polyolefin resin and containing voids. The film has an apparent specific gravity of less than 1.00 and has specified heat shrinking properties and mechanical properties. Also disclosed is a void-containing heat-shrinkable polyester film as mentioned above, which exhibits specified cuttability along a perforation. Further disclosed is a process for producing a void-containing heat-shrinkable polyester film as mentioned above.Type: ApplicationFiled: June 14, 2010Publication date: April 26, 2012Applicant: TOYO BOSEKI KABUSHIKI KAISHAInventors: Shigetomo Yamamoto, Masayuki Haruta, Yukinobu Mukoyama, Masakazu Iwasaki
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Publication number: 20120088112Abstract: The invention provides a biaxially-oriented polyester film that comprises a biaxially oriented polyethylene terephthalate film and contains 9000 ppm or less of ethylene terephthalate cyclic trimer, has a molten specific resistance of within 1.0×108?·cm, and at least one surface of the film has a surface resistivity of 13 log ? or less under a relative humidity of 65%. The invention also provides a wrap-around label for a container produced from the film.Type: ApplicationFiled: June 1, 2010Publication date: April 12, 2012Applicant: TOYO BOSEKI KABUSHIKI KAISHAInventors: Hideki Ito, Masakazu Iwasaki
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Publication number: 20110143123Abstract: Disclosed is a heat shrinkable polyester multilayer film having excellent transparency, gloss and workability, which can be produced easily. Specifically disclosed is a heat shrinkable polyester film having a haze value of not more than 2%, a glossiness at a measurement angle of 45° of not less than 200% in at least one side of the film, and a dynamic coefficient friction between one side of the film and the other side of the film of not more than 1.5. The heat shrinkable polyester film also has a shrinkage in the main shrinking direction of not less than 50% when immersed in hot water of 95° C. for 10 seconds and a surface resistivity of not more than 13 log ? at a relative humidity of 65%.Type: ApplicationFiled: August 7, 2009Publication date: June 16, 2011Applicant: TOYO BOSEKI KABUSHIKI KAISHAInventors: Hideki Ito, Masakazu Iwasaki
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Publication number: 20100260951Abstract: A heat-shrinkable polyester film is obtained which is extremely satisfactory in openability along a perforation, has exceedingly high productivity, and is less apt to split in the lengthwise direction in processing, e.g., printing. Provided is a label which is formed from the heat-shrinkable film and is satisfactorily tearable. The label is one formed from a tubular material which comprises as a base a heat-shrinkable film thermally shrinking mainly in the film width direction and which has been cut according to an object to be packaged, both edges in the film width direction having been bonded to each other. The tubular material has been thermally shrunk to constitute the label, with which at least part of the periphery of the object to be packaged is covered. The label has an angle tear strength in the direction perpendicular to the main shrinkage direction (i.e., in the film length direction) of 100-310 N/mm and a tensile break strength in the direction perpendicular to the main shrinkage direction (i.e.Type: ApplicationFiled: December 11, 2008Publication date: October 14, 2010Applicant: TOYO BOSEKI KABUSHIKI KAISHAInventors: Masayuki Haruta, Masatoshi Hashimoto, Masakazu Iwasaki, Katsuhiko Nose
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Publication number: 20100247845Abstract: The invention aims at providing a heat-shrinkable polyester film which is excellent in tearability along perforations and in break resistance after storage when used as labels of beverage bottles. The invention relates to a heat-shrinkable polyester film which is made of a polyester resin comprising ethylene terephthalate as the main constituent and containing at least 13 mol % of at least one monomer capable of forming an amorphous component in the whole polyester resin component and which has specific heat shrinkage characteristics and exhibits specific mechanical characteristics after heat shrinking treatment. The film can be produced by a sequential biaxial orientation process comprising longitudinal orientation step, intermediate heat treatment step, positive cooling step, transverse orientation step, and final heat treatment step.Type: ApplicationFiled: September 24, 2008Publication date: September 30, 2010Applicant: TOYO BOSEKI KABUSHIKI KAISHAInventors: Masayuki Haruta, Masatoshi Hashimoto, Masakazu Iwasaki, Katsuhiko Nose