Patents by Inventor Akinobu Nagara
Akinobu Nagara 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: 9315667Abstract: The invention provides a stretched polyamide film with a main constituent that is nylon 6. At least one surface layer of the polyamide film satisfies conditions (1) and (2), and the stretched polyamide film satisfies condition (3), which pertain to an orientation factor, an intensity ratio of absorption, and a heat shrinkage rate, respectively, as defined herein.Type: GrantFiled: February 21, 2012Date of Patent: April 19, 2016Assignee: Toyobo Co., Ltd.Inventors: Toshiyuki Shimizu, Yoshinori Miyaguchi, Takuro Endo, Akinobu Nagara
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Publication number: 20130323485Abstract: The objective of the present invention is to provide a stretched polyamide film which is excellent in laminatability, lamination strength, mechanical properties and shock resistance property and which has effects to prevent goods being broken and protect a content from vibration and shock at the time of transportation when used as various packaging materials. The present invention relates to a stretched polyamide film, wherein a main constituent is nylon 6; at least one surface layer meets the following conditions (1) and (2); and the stretched polyamide film meets the following condition (3): (1) a relaxation degree of a surface layer orientation measured by IR spectroscopy is within a range of not less than 0.3 and not more than 0.5; (2) a crystallization degree of a surface layer measured by IR spectroscopy is within a range of not less than 1.0 and not more than 1.4; (3) a heat shrinkage rate (%) in TD direction at 160° C. for 10 minutes is within a range of not less than 0.6 and not more than 4.Type: ApplicationFiled: February 21, 2012Publication date: December 5, 2013Applicant: TOYOBO CO., LTD.Inventors: Toshiyuki Shimizu, Yoshinori Miyaguchi, Takuro Endo, Akinobu Nagara
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Patent number: 8314203Abstract: This polyimide film is superior in heat resistance, rigidity and high frequency properties, is free of inconveniences due to curling even when various functional layers are laminated by heating, and is preferable as a substrate film superior in thermal degradation stability for electronic parts. This polyimide film has a planar orientation coefficient of 0.79-0.89 as measured by an X-ray diffraction method, a difference in the surface planar orientation degree between one surface thereof and the other surface thereof of not more than 2 and a curling degree of not more than 5%, which is obtained by imidation of a polyimide precursor film having a particular imidation rate.Type: GrantFiled: December 27, 2004Date of Patent: November 20, 2012Assignee: Toyo Boseki Kabushiki KaishaInventors: Masayuki Tsutsumi, Satoshi Maeda, Keizo Kawahara, Takefumi Yoshida, Kazutake Okamoto, Morio Morino, Shoichi Uemura, Akinobu Nagara, Noriko Takahashi, Hiroko Oyama, Shunji Kurahara, Jun Yasui
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Publication number: 20090152095Abstract: The easy-to-tear stretched aliphatic polyester film of the present invention is characterized in that the edge tear strength in the longitudinal direction and the transverse direction is not more than 22 N. The easy-to-tear stretched aliphatic polyester film of the present invention is produced by a method of irradiation of actinic rays on an aliphatic polyester film or a method of film-forming a film obtained by laminating aliphatic polyesters having different melting points in three layers of A/B/A under particular film-forming conditions.Type: ApplicationFiled: January 26, 2009Publication date: June 18, 2009Applicant: Toyo Boseki Kabushiki KaishaInventors: Keizou Kawahara, Shigeto Yoshida, Masayuki Tsutsumi, Daisuke Sakura, Akinobu Nagara, Yoshiko Akitomo, Noriko Takahashi, Naonobu Oda, Kazumoto Imai, Kunio Takeuchi, Hiroshi Nagano, Hisato Kobayashi, Keiji Mori, Yasuhisa Fujita
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Patent number: 7544414Abstract: An oriented syndiotactic polystyrene-based film composed of an oriented film made of a syndiotactic styrene polymer and an adhesiveness-improving layer formed from a specific water-dispersible resin on at least one surface of the oriented film, which is excellent in the tight adhesion between the oriented film and the adhesiveness-improving layer, the adhesion between the adhesiveness-improving layer and an ink layer or laminate layer applied thereon, economical efficiency, recyclability, and environmental compatibility in production. It is particularly preferable that the film be produced by applying the aqueous dispersion of the water-dispersible resin on unstretched or uniaxially stretched film to form the adhesiveness-improving layer, stretching the obtained laminate uni- or bi-axially at least one time, and then heat-treating the resulting laminate.Type: GrantFiled: May 16, 2003Date of Patent: June 9, 2009Assignee: Toyo Boseki Kabushiki KaishaInventors: Masayuki Tsutsumi, Hisato Kobayashi, Keizo Kawahara, Shigeto Yoshida, Shinsuke Yamaguchi, Kazutake Okamoto, Akira Takahashi, Eiji Kumagai, Akinobu Nagara, Yoshiko Akitomo, Kazumoto Imai, Naonobu Oda
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Publication number: 20070272124Abstract: This polyimide film is superior in heat resistance, rigidity and high frequency properties, is free of inconveniences due to curling even when various functional layers are laminated by heating, and is preferable as a substrate film superior in thermal degradation stability for electronic parts. This polyimide film has a planar orientation coefficient of 0.79-0.89 as measured by an X-ray diffraction method, a difference in the surface planar orientation degree between one surface thereof and the other surface thereof of not more than 2 and a curling degree of not more than 5%, which is obtained by imidation of a polyimide precursor film having a particular imidation rate.Type: ApplicationFiled: December 27, 2004Publication date: November 29, 2007Applicant: Toyo Boseki Kabushiki KaishaInventors: Masayuki Tsutsumi, Satoshi Maeda, Keizo Kawahara, Takefumi Yoshida, Kazutake Okamoto, Morio Morino, Shoichi Uemura, Akinobu Nagara, Noriko Takahashi, Hiroko Oyama, Shunji Kurahara, Jun Yasui
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Publication number: 20060035096Abstract: An oriented syndiotactic polystyrene-based film composed of an oriented film made of a syndiotactic styrene polymer and an adhesiveness-improving layer formed from a specific water-dispersible resin on at least one surface of the oriented film, which is excellent in the tight adhesion between the oriented film and the adhesiveness-improving layer, the adhesion between the adhesiveness-improving layer and an ink layer or laminate layer applied thereon, economical efficiency, recyclability, and environmental compatibility in production. It is particularly preferable that the film be produced by applying the aqueous dispersion of the water-dispersible resin on unstretched or uniaxially stretched film to form the adhesiveness-improving layer, stretching the obtained laminate uni- or bi-axially at least one time, and then heat-treating the resulting laminate.Type: ApplicationFiled: May 16, 2003Publication date: February 16, 2006Inventors: Masayuki Tsutsumi, Hisato Kobayashi, Keizo Kawahara, Shigeto Yoshida, Shinsuke Yamaguchi, Kazutaka Okamoto, Akira Takahashi, Eiji Kumagai, Akinobu Nagara, Yoshiko Akitomo, Kazumoto Imai, Naonobu Oda
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Publication number: 20050103029Abstract: A detector (29) detects that a refrigerant gas has leaked from a refrigeration cycle, or detects in advance that a refrigerant is to leak. The alarming device (27) gives users an alarming signal warning against the refrigerant leak. The alarming device (27) is caused to stop giving an alarming signal after users open doors of storage compartments including a refrigerator compartment (4), a vegetable storage compartment (5) and a freezer compartment (6). For example, after all the doors of the storage compartments are opened, giving the alarming signal is stopped. Otherwise, giving the alarming signal is stopped after the door of a storage compartment into which cold air flows by causing a damper (12) to open is opened.Type: ApplicationFiled: December 27, 2002Publication date: May 19, 2005Inventors: Keizou Kawahara, Shigeto Yoshida, Masayuki Tsutsumi, Daisuke Sakura, Akinobu Nagara, Yoshiko Akitomo, Noriko Takahashi, Naonobu Oda, Kazumoto Imai, Kunio Takeuchi, Hiroshi Nagano, Hisato Kobayashi, Keiji Mori, Yasuhisa Fujita
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Publication number: 20050106345Abstract: The easy-to-tear stretched aliphatic polyester film of the present invention is characterized in that the edge tear strength in the longitudinal direction and the transverse direction is not more than 22 N. The easy-to-tear stretched aliphatic polyester film of the present invention is produced by a method of irradiation of actinic rays on an aliphatic polyester film or a method of film-forming a film obtained by laminating aliphatic polyesters having different melting points in three layers of A/B/A under particular film-forming conditions.Type: ApplicationFiled: January 6, 2003Publication date: May 19, 2005Inventors: Keizou Kawahara, Shigeto Yoshida, Masayuki Tsutsumi, Daisuke Sakura, Akinobu Nagara, Yoshiko Akitomo, Noriko Takahashi, Naonobu Oda, Kazumoto Imai, Kunio Takeuchi, Hiroshi Nagano, Hisato Kobayashi, Keiji Mori, Yasuhisa Fujita