Patents by Inventor Yasuhiro Nagoshi
Yasuhiro Nagoshi 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: 9352498Abstract: In manufacture of a polyimide film, self-supporting film is heated with both ends in a width direction held and carried by the tenter apparatus. The tenter apparatus has a guide member placed on each side of a carry path for the self-supporting film and a pair of tenter chains each moved along the guide member and each including a film holding mechanism for holding an edge portion of the self-supporting film. The tenter chain has a rotating body supported rotatably around a shaft member extending in a direction in parallel with a carry face of the self-supporting film and perpendicular to a longitudinal direction of the guide member for movably supporting the tenter chain. The shaft member is directly or indirectly fixed to a member identical to a member to which the film holding mechanism is fixed.Type: GrantFiled: October 7, 2010Date of Patent: May 31, 2016Assignee: UBE INDUSTRIES, LTD.Inventors: Hiroyuki Ikeuchi, Yujiro Noda, Yasuhiro Nagoshi, Takeru Fujinaga, Toshihiko Anno, Masakatsu Kimura
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Patent number: 9199409Abstract: A stretching apparatus capable of optimally inhibiting neck-in of a film when the film is stretched in an MD (Machine Direction), has an advancing mechanism, a take-in mechanism, and film-holding unit placed at both end portions in a TD (Transverse Direction) of a transfer path of film between the mechanisms. The film-holding unit has a plurality of upper holding rollers placed in parallel at intervals in the MD of the film above the transfer path of film, and a plurality of lower holding rollers placed opposite to upper holding rollers below the transfer path of film such that the plurality of lower holding rollers work together with the plurality of upper holding rollers to sandwich the film vertically between the rollers. Upper holding rollers and lower holding rollers are rotatably supported such that their rotational axes are inclined outward in the TD of film toward a downstream side of the MD of film.Type: GrantFiled: March 29, 2011Date of Patent: December 1, 2015Assignee: UBE INDUSTRIES, LTD.Inventors: Takeru Fujinaga, Yasuhiro Nagoshi, Toshihito Sakai, Hiroyuki Ikeuchi
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Patent number: 8415024Abstract: An organic liquid is applied to both sides of a self-supporting film of a polyimide precursor solution, and then the self-supporting film is heated to effect imidization, thereby providing a polyimide film with reduced surface roughness.Type: GrantFiled: April 7, 2006Date of Patent: April 9, 2013Assignee: Ube Industries, Ltd.Inventors: Hideki Iwai, Kazuyuki Hamada, Yasuhiro Nagoshi
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Publication number: 20130037988Abstract: A stretching apparatus capable of optimally inhibiting neck-in of a film when the film is stretched in an MD (Machine Direction), has an advancing mechanism, a take-in mechanism, and film-holding unit placed at both end portions in a TD (Transverse Direction) of a transfer path of film between the mechanisms. The film-holding unit has a plurality of upper holding rollers placed in parallel at intervals in the MD of the film above the transfer path of film, and a plurality of lower holding rollers placed opposite to upper holding rollers below the transfer path of film such that the plurality of lower holding rollers work together with the plurality of upper holding rollers to sandwich the film vertically between the rollers. Upper holding rollers and lower holding rollers are rotatably supported such that their rotational axes are inclined outward in the TD of film toward a downstream side of the MD of film.Type: ApplicationFiled: March 29, 2011Publication date: February 14, 2013Applicant: UBE INDUSTRIES, LTD.Inventors: Takeru Fujinaga, Yasuhiro Nagoshi, Toshihito Sakai, Hiroyuki Ikeuchi
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Publication number: 20120292800Abstract: Provided are a method and apparatus for the production of a polyimide film, which allow a polyimide film having physical properties with in-plane uniformity to be produced with high productivity. In the method for the production of a polyimide film, a solvent content of a self-supporting film is measured by infrared spectroscopy, and based on the measurement result, one or more kinds selected from a drying condition of a cast of a polyimide precursor solution, a post-heating condition of the self-supporting film, and an amount of extrusion of a polyimide precursor solution from a die are controlled.Type: ApplicationFiled: January 24, 2011Publication date: November 22, 2012Applicant: UBE INDUSTRIES, LTD.Inventors: Yohei Higuchi, Yasuhiro Nagoshi, Takeshi Uekido, Toshiyuki Nishino, Eiji Masui
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Publication number: 20120193829Abstract: In manufacture of a polyimide film, self-supporting film is heated with both ends in a width direction held and carried by the tenter apparatus. The tenter apparatus has a guide member placed on each side of a carry path for the self-supporting film and a pair of tenter chains each moved along the guide member and each including a film holding mechanism for holding an edge portion of the self-supporting film. The tenter chain has a rotating body supported rotatably around a shaft member extending in a direction in parallel with a carry face of the self-supporting film and perpendicular to a longitudinal direction of the guide member for movably supporting the tenter chain. The shaft member is directly or indirectly fixed to a member identical to a member to which the film holding mechanism is fixed.Type: ApplicationFiled: October 7, 2010Publication date: August 2, 2012Applicant: UBE INDUSTRIES, LTD.Inventors: Hiroyuki Ikeuchi, Yujiro Noda, Yasuhiro Nagoshi, Takeru Fujinaga, Toshihiko Anno, Masakatsu Kimura
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Publication number: 20100266829Abstract: An aromatic polyimide film having a thickness in the range of 5-250 ?m and comprising biphenyltetracarboxylic acid units comprising 3,3?,4,4?-biphenyltetracarboxylic acid units and 2,3,3?,4?-biphenyltetracarboxylic acid units in a molar ratio of 75:25 to 97:3 and p-phenylenediamine units in a molar ratio of 100:102 to 100:98 has thermal resistance and physical characteristics equivalent to those of the known aromatic polyimide film comprising 3,3?,4,4?-biphenyltetracarboxylic acid units and p-phenylenediamine units and showing good thermal resistance and physical characteristics and is favorably produced in industry.Type: ApplicationFiled: November 14, 2008Publication date: October 21, 2010Applicant: UBE INDUSTRIES, LTD.Inventors: Hideki Iwai, Takao Miyamoto, Toshiyuki Nishino, Yasuhiro Nagoshi
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Publication number: 20100062188Abstract: A polyimide film having one smooth surface favorably employable for a substrate of a display or an electronic paper is prepared by the steps of forming a laminated film by coating a polyimide precursor solution containing no filler, in which the polyimide is prepared from an acidic component comprising 3,3?,4,4?-biphenyltetracarboxylic dianhydride and a diamine component comprising p-phenylene diamine, on one surface of a self-supporting film of a polyimide precursor solution containing a filler, in which the polyimide is prepared from an acidic component comprising 3,3?,4,4?-biphenyltetracarboxylic dianhydride and a diamine component comprising p-phenylene diamine; and heating the laminated film to perform imidization.Type: ApplicationFiled: April 14, 2008Publication date: March 11, 2010Applicant: UBE INDUSTRIES, LTD.Inventors: Takao Miyamoto, Hideki Iwai, Toshiyuki Nishino, Yasuhiro Nagoshi
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Publication number: 20090297837Abstract: An organic liquid is applied to both sides of a self-supporting film of a polyimide precursor solution, and then the self-supporting film is heated to effect imidization, thereby providing a polyimide film with reduced surface roughness.Type: ApplicationFiled: April 7, 2006Publication date: December 3, 2009Applicant: UBE INDUSTRIES, LTD.Inventors: Hideki Iwai, Kazuyuki Hamada, Yasuhiro Nagoshi
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Publication number: 20090117374Abstract: Disclosed is a polyimide film for metallizing, which has a polyimide layer (a) containing a surface treatment agent on one side or both sides of a polyimide layer (b). A metal layer may be directly formed on the surface of the polyimide film by a metallizing method, thereby providing a metal-laminated polyimide film with excellent adhesiveness.Type: ApplicationFiled: April 18, 2007Publication date: May 7, 2009Applicant: Ube Industries, Ltd.Inventors: Kazuyuki Hamada, Hidenori Mii, Akira Kawabata, Yasuhiro Nagoshi, Toshiyuki Nishino
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Publication number: 20080038522Abstract: An aromatic polyimide film favorably employable for the chip-on-film (COF) system is composed of a polyimide derived from 3,3?,4,4?-biphenyltetracarboxylic acid dianhydride and p-phenylenediamine and a powdery inorganic filler, in which the film has a thickness in the range of 25 to 35 ?m and does not have protrusions of 1 ?m or higher, and the filler has a mean diameter of less than 1 ?m.Type: ApplicationFiled: October 15, 2007Publication date: February 14, 2008Applicant: UBE INDUSTRIES, LTD.Inventors: Kazuyuki HAMADA, Takashi AMANE, Yasuhiro NAGOSHI, Kazuhiro FUJIWARA, Kiyotaka KOBAYASHI, Taei UCHIDA, Norihisa KOMODA
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Publication number: 20060068184Abstract: An aromatic polyimide film favorably employable for the chip-on-film (COF) system is composed of a polyimide derived from 3,3?,4,4?-biphenyltetracarboxylic acid dianhydride and p-phenylenediamine and a powdery inorganic filler, in which the film has a thickness in the range of 25 to 35 ?m and does not have protrusions of 1 ?m or higher, and the filler has a mean diameter of less than 1 ?m.Type: ApplicationFiled: September 29, 2005Publication date: March 30, 2006Applicant: Ube Industries, Ltd.Inventors: Kazuyuki Hamada, Takashi Amane, Yasuhiro Nagoshi, Kazuhiro Fujiwara, Kiyotaka Kobayashi, Taei Uchida, Norihisa Komoda