Patents by Inventor Akio Ozasa
Akio Ozasa 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: 8187514Abstract: A bowl-shaped container (10a) which is as a biodegradable molded article adheres a coating film (12) mainly made of biodegradable plastic and having at least hydrophobicity to the surface of the main body (11a) of the container mainly made of starch. The main body (11a) is molded through steam expansion of a slurry or dough molding material containing high-amylose starch and water, or a slurry or dough molding material containing starch, polyvinyl alcohol and water. For these reasons, it is possible to accomplish sufficient strength and at least sufficient water resistance, to exert a very excellent biodegradability and further to provide a biodegradable molded article having excellent moisture absorption strength mainly made of starch even if the biodegradable molded article has a complicated shape.Type: GrantFiled: September 3, 2008Date of Patent: May 29, 2012Assignee: Nissei Company, Ltd.Inventors: Akio Ozasa, Akihisa Hashimoto, Shinji Tanaka
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Patent number: 8043539Abstract: Using a metal mold (20a) consisting of a convex mold part (21a) and a concave mold part (22a), a molding material (14) is placed between a pair of coating films (12), and after clamping, the molding material (14) and the coating film (12) are heated and molded to make a biodegradable expanded molded article, and at the same time, the coating film (12) is softened and pressure-bonded to a surface of the biodegradable expanded molded article. An exhaust hole (31a) and (32a) are provided on the convex mold part (21a) and the concave mold part (22a), respectively. At the time of heating and molding, gaseous matter existing between the coating film (12) and a surface of the metal mold (20a) is discharged out of the metal mold (20a) through the exhaust holes (31a) and (32a).Type: GrantFiled: March 12, 2003Date of Patent: October 25, 2011Assignee: Nissei Company, Ltd.Inventors: Akio Ozasa, Akihisa Hashimoto, Rumi Shinohara, Shinji Tanaka, Takeshi Shingu
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Publication number: 20090008819Abstract: A bowl-shaped container (10a) which is as a biodegradable molded article adheres a coating film (12) mainly made of biodegradable plastic and having at least hydrophobicity to the surface of the main body (11a) of the container mainly made of starch. The main body (11a) is molded through steam expansion of a slurry or dough molding material containing high-amylose starch and water, or a slurry or dough molding material containing starch, polyvinyl alcohol and water. For these reasons, it is possible to accomplish sufficient strength and at least sufficient water resistance, to exert a very excellent biodegradability and further to provide a biodegradable molded article having excellent moisture absorption strength mainly made of starch even if the biodegradable molded article has a complicated shape.Type: ApplicationFiled: September 3, 2008Publication date: January 8, 2009Inventors: Akio Ozasa, Akihisa Hashimoto, Shinji Tanaka
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Publication number: 20080138458Abstract: Using a metal mold (20a) consisting of a convex mold part (21a) and a concave mold part (22a), a molding material (14) is placed between a pair of coating films (12), and after claming, the molding material (14) and the coating film (12) are heated and molded to make a biodegradable expanded molded article, and at the same time, the coating film (12) is softened and pressure-bonded to a surface of the biodegradable expanded molded article. An exhaust hole (31a) and (32a) are provided on the convex mold part (21a) and the concave mold part (22a), respectively. At the time of heating and molding, gaseous matter existing between the coating film (12) and a surface of the metal mold (20a) is discharged out of the metal mold (20a) through the exhaust holes (31a) and (32a).Type: ApplicationFiled: January 28, 2008Publication date: June 12, 2008Inventors: Akio Ozasa, Akihisa Hashimoto, Rumi Shinohara, Shinji Tanaka, Takeshi Shingu
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Patent number: 7332214Abstract: Biodegradable molded articles; a process for producing the same: and compositions for foam molding packed in a packaging film bag to be used in the production. A bowl-type container(10a), which is one of the biodegradable molded articles as described above, consists of a bowl body(11a) comprising starch as the main component and a coating film(12) having at least hydrophobic properties and comprising a biodegradable plastic as the main component which is bonded to the surface of the bowl body(11a). This bowl body(11a) is formed by steam-foaming molding a material to be molded which is in the form of a slurry or a dough containing starch and water. The coating film(12) is closely bonded to the surface of the bowl body(11a) either directly or via an adhesive layer. Compositions for foam molding packed in such packaging film bags can be easily stored and molded.Type: GrantFiled: September 12, 2001Date of Patent: February 19, 2008Assignee: Nissei Kabushiki KaishaInventors: Akio Ozasa, Akihisa Hashimoto, Rumi Shinohara, Shinji Tanaka
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Publication number: 20050236415Abstract: A bowl-shaped container (10a) which is as a hermetically sealed container includes a bowl-shaped container (10a) having a space to contain contents (51) at the inside and an opening to take in and out the contents (51), and a lid (17) mainly made of plastic to seal the opening of the bowl-shaped container (10a), which is heat-sealed to a rim of the opening of the bowl-shaped container (10a). The bowl-shaped container (10a) adheres a coating film (12) mainly made of biodegradable plastic and having at least hydrophobicity to the surface of the main body (11a) of the container mainly made of starch. The main body (11a) is molded through steam expansion of a slurry or dough molding material containing starch and water. For these reasons, it is possible to provide a hermetically sealed container mainly made of starch having sufficient strength and at least sufficient water resistance, and a very excellent biodegradability.Type: ApplicationFiled: February 20, 2003Publication date: October 27, 2005Inventors: Akio Ozasa, Akihisa Hashimoto, Rumi Shinohara
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Publication number: 20050230864Abstract: Using a metal mold (20a) consisting of a convex mold part (21a) and a concave mold part (22a), a molding material (14) is placed between a pair of coating films (12), and after claming, the molding material (14) and the coating film (12) are heated and molded to make a biodegradable expanded molded article, and at the same time, the coating film (12) is softened and pressure-bonded to a surface of the biodegradable expanded molded article. An exhaust hole (31a) and (32a) are provided on the convex mold part (21a) and the concave mold part (22a), respectively. At the time of heating and molding, gaseous matter existing between the coating film (12) and a surface of the metal mold (20a) is discharged out of the metal mold (20a) through the exhaust holes (31a) and (32a).Type: ApplicationFiled: March 12, 2003Publication date: October 20, 2005Applicant: Nissei Kabushiki KaishaInventors: Akio Ozasa, Akihisa Hashimoto, Rumi Shinohara, Shinji Tanaka, Takeshi Shingu
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Publication number: 20050202229Abstract: A bowl-shaped container (10a) which is as a biodegradable molded article adheres a coating film (12) mainly made of biodegradable plastic and having at least hydrophobicity to the surface of the main body (11a) of the container mainly made of starch. The main body (11a) is molded through steam expansion of a slurry or dough molding material containing high-amylose starch and water, or a slurry or dough molding material containing starch, polyvinyl alcohol and water. For these reasons, it is possible to accomplish sufficient strength and at least sufficient water resistance, to exert a very excellent biodegradability and further to provide a biodegradable molded article having excellent moisture absorption strength mainly made of starch even if the biodegradable molded article has a complicated shape.Type: ApplicationFiled: February 20, 2003Publication date: September 15, 2005Inventors: Akio Ozasa, Akihisa Hashimoto, Shinji Tanaka
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Publication number: 20030107145Abstract: Biodegradable molded articles; a process for producing the same: and compositions for foam molding packed in a packaging film bag to be used in the production. A bowl-type container(10a), which is one of the biodegradable molded articles as described above, consists of a bowl body(11a) comprising starch as the main component and a coating film(12) having at least hydrophobic properties and comprising a biodegradable plastic as the main component which is bonded to the surface of the bowl body(11a). This bowl body(11a) is formed by steam-foaming molding a material to be molded which is in the form of a slurry or a dough containing starch and water. The coating film(12) is closely bonded to the surface of the bowl body(11a) either directly or via an adhesive layer. Compositions for foam molding packed in such packaging film bags can be easily stored and molded.Type: ApplicationFiled: May 7, 2002Publication date: June 12, 2003Inventors: Akio Ozasa, Akihisa Hashimoto, Rumi Shinohara, Shinji Tanaka
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Patent number: 6136255Abstract: A voltage is applied to a feeder plate (29) from a power source section (2) including an alternating power source for dielectric heating, whereby an electric field in a direction crossing a direction in which a mold (8) is moved is applied to an incoming plate (28) which is not in contact with the feeder plate (29), so that molded object materials (9) are heated and expanded. By doing so, arc discharge caused by contact of the mold with an electrode is prevented from occurring during the heating and molding of a biodegradable molded object by dielectric heating.Type: GrantFiled: August 29, 1998Date of Patent: October 24, 2000Assignee: Nissei Kabushiki KaishaInventors: Sadamasa Ando, Taizo Karasawa, Toshitaka Haruta, Akio Ozasa, Takayuki Kurisaka, Tsutomu Oowada, Shinji Tanaka
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Patent number: 6063422Abstract: Using a metal mold (8) having an insulating section provided with vapor release sections, pressure outside the metal mold (8) is reduced, and heating is performed while releasing vapor produced thereby through the vapor release sections. This can prevent insulation breakdown caused by condensation of large amounts of vapor produced by ingredients during molding and heating of molded baked snacks by means of resistance heating, dielectric heating, etc.Type: GrantFiled: July 15, 1998Date of Patent: May 16, 2000Assignee: Nissei Kabushiki KaishaInventors: Sadamasa Ando, Taizo Karasawa, Toshitaka Haruta, Akio Ozasa, Takayuki Kurisaka, Tsutomu Oowada, Shinji Tanaka
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Patent number: 5965080Abstract: Using a metal mold (8) having an insulating section provided with vapor release sections, pressure outside the metal mold (8) is reduced, and heating is performed while releasing vapor produced thereby through the vapor release sections. This can prevent insulation breakdown caused by condensation of large amounts of vapor produced by materials during molding and heating of starch-based biodegradable molded objects by means of resistance heating, dielectric heating, etc.Type: GrantFiled: August 3, 1998Date of Patent: October 12, 1999Assignee: Nissei Kabushiki KaishaInventors: Sadamasa Ando, Taizo Karasawa, Toshitaka Haruta, Akio Ozasa, Takayuki Kurisaka, Tsutomu Oowada, Shinji Tanaka
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Patent number: 5639518Abstract: A raw material formed by a mixture of, for example, soybean protein and water, is extruded by an extruder. Then, high-frequency electroconductive heating is performed by placing the material between a pair of electrodes and applying a voltage between the electrodes. As a result, a biodegradable molded article is obtained. In this method, biodegradable molded articles having a uniform structure are manufactured in a short period of time without increasing the cost of equipment or adversely affecting the working environment.Type: GrantFiled: July 11, 1995Date of Patent: June 17, 1997Assignee: Nissei Kabushiki KaishaInventors: Sadamasa Ando, Taizo Karasawa, Akio Ozasa, Takayuki Kurisaka, Yoshiyuki Otani
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Patent number: 5591491Abstract: A mixture in the form of slurry obtained from mixing a soybean protein, sugar and water is placed between a pair of electrodes. Then, an electroconductive heating process is applied to the mixture under an applied voltage between the electrodes for a predetermined time period, thereby obtaining the sheet-like biodegradable molded article. In this method, the biodegradable molded articles have a homogeneous structure and can be prepared in a short period of time without increasing the cost of equipment of creating unfavorable working conditions.Type: GrantFiled: February 2, 1995Date of Patent: January 7, 1997Assignee: Nissei Kabushiki KaishaInventors: Sadamasa Ando, Taizo Karasawa, Akio Ozasa