Patents by Inventor Takayasu Yasuda
Takayasu Yasuda 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: 9151883Abstract: Provide is a cellulose acylate film, of which the environmental humidity-dependent retardation change is small and which, when stuck to a polarizer and used in high-temperature and high-humidity environments, is effective for preventing the polarizing element from being deteriorated. A cellulose acylate film, which contains a hydrogen-bonding compound satisfying the following requirements (A) to (C), and at least one hydrophobizing agent selected from a polyalcohol ester-base hydrophobizing agent, a polycondensate ester-base hydrophobizing agent and a carbohydrate derivative-base hydrophobizing agent: (A) the compound has both a hydrogen-bonding donor part and a hydrogen-bonding acceptor part in one molecule, (B) the value computed by dividing the molecular weight of the compound by the total number of the hydrogen-bonding donor number and the hydrogen-bonding acceptor number in the compound is from 30 to 65, and (C) the total number of the aromatic ring structures in the compound is from 1 to 3.Type: GrantFiled: July 9, 2014Date of Patent: October 6, 2015Assignee: FUJIFILM CORPORATIONInventors: Nobutaka Fukagawa, Masato Nagura, Takayasu Yasuda, Takahiro Ohno, Satoshi Tanaka, Aiko Yamamoto, Aiko Yoshida, Shinya Watanabe
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Patent number: 8906475Abstract: Provide is a cellulose acylate film, of which the environmental humidity-dependent retardation change is small and which, when stuck to a polarizer and used in high-temperature and high-humidity environments, is effective for preventing the polarizing element from being deteriorated. A cellulose acylate film, which contains a hydrogen-bonding compound satisfying the following requirements (A) to (C), and at least one hydrophobizing agent selected from a polyalcohol ester-base hydrophobizing agent, a polycondensate ester-base hydrophobizing agent and a carbohydrate derivative-base hydrophobizing agent: (A) the compound has both a hydrogen-bonding donor part and a hydrogen-bonding acceptor part in one molecule, (B) the value computed by dividing the molecular weight of the compound by the total number of the hydrogen-bonding donor number and the hydrogen-bonding acceptor number in the compound is from 30 to 65, and (C) the total number of the aromatic ring structures in the compound is from 1 to 3.Type: GrantFiled: September 29, 2010Date of Patent: December 9, 2014Assignee: Fujifilm CorporationInventors: Nobutaka Fukagawa, Masato Nagura, Takayasu Yasuda, Takahiro Ohno, Satoshi Tanaka, Aiko Yamamoto, Aiko Yoshida, Shinya Watanabe
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Publication number: 20140318413Abstract: Provide is a cellulose acylate film, of which the environmental humidity-dependent retardation change is small and which, when stuck to a polarizer and used in high-temperature and high-humidity environments, is effective for preventing the polarizing element from being deteriorated. A cellulose acylate film, which contains a hydrogen-bonding compound satisfying the following requirements (A) to (C), and at least one hydrophobizing agent selected from a polyalcohol ester-base hydrophobizing agent, a polycondensate ester-base hydrophobizing agent and a carbohydrate derivative-base hydrophobizing agent: (A) the compound has both a hydrogen-bonding donor part and a hydrogen-bonding acceptor part in one molecule, (B) the value computed by dividing the molecular weight of the compound by the total number of the hydrogen-bonding donor number and the hydrogen-bonding acceptor number in the compound is from 30 to 65, and (C) the total number of the aromatic ring structures in the compound is from 1 to 3.Type: ApplicationFiled: July 9, 2014Publication date: October 30, 2014Applicant: FUJIFILM CorporationInventors: Nobutaka FUKAGAWA, Masato NAGURA, Takayasu YASUDA, Takahiro OHNO, Satoshi TANAKA, Aiko YAMAMOTO, Aiko YOSHIDA, Shinya WATANABE
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Patent number: 8859060Abstract: A protective film of polarizer comprising an organic acid that has a solubility in water at 25° C. of at most 0.1% by mass and has an acid dissociation constant in a mixed solvent of tetrahydrofuran/water=6/4 by volume at 25° C. of from 2 to 7 can improve polarizer durability.Type: GrantFiled: December 2, 2010Date of Patent: October 14, 2014Assignee: FUJIFILM CorporationInventors: Nobutaka Fukagawa, Masato Nagura, Yoshio Ishii, Takayasu Yasuda, Naoyuki Nishikawa
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Publication number: 20140053755Abstract: A cellulose acylate film comprising a cellulose acylate resin satisfying the formulae (i)-(iii) and a compound capable of forming a hydrogen bond satisfying conditions (A)-(C): (A) the compound has both a hydrogen bond donor moiety and a hydrogen bond acceptor moiety in the molecule, (B) the value obtained by dividing the molecular weight of the compound by the total of the number of the hydrogen bond donor moiety and the number of the hydrogen bond acceptor moiety is from 30 to 65, (C) the number of aromatic ring structures is from 1 to 3, 0.5?A+B?2.7,??(i) 0.0?A?2.5, and??(ii) 0.1?B?2.0,??(iii) wherein A means the degree of substitution with an acetyl group, and B means a total of the degree of substitution with a propionyl group and the degree of substitution with a butyryl group.Type: ApplicationFiled: November 1, 2013Publication date: February 27, 2014Applicant: FUJIFILM CorporationInventors: Masato NAGURA, Takayasu YASUDA
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Patent number: 8465673Abstract: A humidity dependence improver for polymer film, comprising a compound of the following formula (1) or (2): wherein Ra, Rb and Rc represent an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group; X1 to X6 represent a single bond or a divalent linking group; R1 to R6 represent a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group.Type: GrantFiled: September 29, 2010Date of Patent: June 18, 2013Assignee: FUJIFILM CorporationInventors: Takayasu Yasuda, Masato Nagura
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Publication number: 20120204757Abstract: A cellulose acylate film comprising a cellulose acylate resin satisfying the formulae (i)-(iii) and a compound capable of forming a hydrogen bond satisfying conditions (A)-(C): (A) the compound has both a hydrogen bond donor moiety and a hydrogen bond acceptor moiety in the molecule, (B) the value obtained by dividing the molecular weight of the compound by the total of the number of the hydrogen bond donor moiety and the number of the hydrogen bond acceptor moiety is from 30 to 65, (C) the number of aromatic ring structures is from 1 to 3, 0.5?A+B?2.7,??(i) 0.0?A?2.5, and??(ii) 0.1?B?2.0,??(iii) wherein A means the degree of substitution with an acetyl group, and B means a total of the degree of substitution with a propionyl group and the degree of substitution with a butyryl group.Type: ApplicationFiled: March 8, 2012Publication date: August 16, 2012Applicant: FUJIFILM CorporationInventors: Masato Nagura, Takayasu Yasuda
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Publication number: 20120180697Abstract: Provide is a cellulose acylate film, of which the environmental humidity-dependent retardation change is small and which, when stuck to a polarizer and used in high-temperature and high-humidity environments, is effective for preventing the polarizing element from being deteriorated. A cellulose acylate film, which contains a hydrogen-bonding compound satisfying the following requirements (A) to (C), and at least one hydrophobizing agent selected from a polyalcohol ester-base hydrophobizing agent, a polycondensate ester-base hydrophobizing agent and a carbohydrate derivative-base hydrophobizing agent: (A) the compound has both a hydrogen-bonding donor part and a hydrogen-bonding acceptor part in one molecule, (B) the value computed by dividing the molecular weight of the compound by the total number of the hydrogen-bonding donor number and the hydrogen-bonding acceptor number in the compound is from 30 to 65, and (C) the total number of the aromatic ring structures in the compound is from 1 to 3.Type: ApplicationFiled: September 29, 2010Publication date: July 19, 2012Applicant: FUJIFILM CORPORATIONInventors: Nobutaka Fukagawa, Masato Nagura, Takayasu Yasuda, Takahiro Ohno, Satoshi Tanaka, Aiko Harada, Aiko Yoshida, Shinya Watanabe
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Patent number: 8158220Abstract: A cellulose acylate film comprising a cellulose acylate resin satisfying the formulae (i)-(iii) and a compound capable of forming a hydrogen bond satisfying conditions (A)-(C): (A) the compound has both a hydrogen bond donor moiety and a hydrogen bond acceptor moiety in the molecule, (B) the value obtained by dividing the molecular weight of the compound by the total of the number of the hydrogen bond donor moiety and the number of the hydrogen bond acceptor moiety is from 30 to 65, (C) the number of aromatic ring structures is from 1 to 3, 0.5?A+B?2.7, ??(i) 0.0?A?2.5, and ??(ii) 0.1?B?2.0, ??(iii) wherein A means the degree of substitution with an acetyl group, and B means a total of the degree of substitution with a propionyl group and the degree of substitution with a butyryl group.Type: GrantFiled: September 29, 2010Date of Patent: April 17, 2012Assignee: FUJIFILM CorporationInventors: Masato Nagura, Takayasu Yasuda
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Publication number: 20110242460Abstract: A cellulose acylate film containing a polymer having a repeating unit represented by the following formula (1) and a cellulose acylate. wherein R1 represents an alkyl group having 2 or more carbon atoms, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group; and R2 represents an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group.Type: ApplicationFiled: March 30, 2011Publication date: October 6, 2011Applicant: FUJIFILM CORPORATIONInventors: Takayasu YASUDA, Toshihiro KAMADA, Masato NAGURA
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Publication number: 20110134374Abstract: A protective film of polarizer comprising an organic acid that has a solubility in water at 25° C. of at most 0.1% by mass and has an acid dissociation constant in a mixed solvent of tetrahydrofuran/water=6/4 by volume at 25° C. of from 2 to 7 can improve polarizer durability.Type: ApplicationFiled: December 2, 2010Publication date: June 9, 2011Applicant: FUJIFILM CorporationInventors: Nobutaka Fukagawa, Masato Nagura, Yoshio Ishii, Takayasu Yasuda, Naoyuki Nishikawa
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Publication number: 20110076423Abstract: A cellulose acylate film comprising a cellulose acylate resin satisfying the formulae (i)-(iii) and a compound capable of forming a hydrogen bond satisfying conditions (A)-(C): (A) the compound has both a hydrogen bond donor moiety and a hydrogen bond acceptor moiety in the molecule, (B) the value obtained by dividing the molecular weight of the compound by the total of the number of the hydrogen bond donor moiety and the number of the hydrogen bond acceptor moiety is from 30 to 65, (C) the number of aromatic ring structures is from 1 to 3, 0.5?A+B?2.7,??(i) 0.0?A?2.5, and??(ii) 0.1?B?2.0,??(iii) wherein A means the degree of substitution with an acetyl group, and B means a total of the degree of substitution with a propionyl group and the degree of substitution with a butyryl group.Type: ApplicationFiled: September 29, 2010Publication date: March 31, 2011Applicant: FUJIFILM CORPORATIONInventors: MASATO NAGURA, TAKAYASU YASUDA
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Publication number: 20110073007Abstract: A humidity dependence improver for polymer film, comprising a compound of the following formula (1) or (2): wherein Ra, Rb and Rc represent an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group; X1 to X6 represent a single bond or a divalent linking group; R1 to R6 represent a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group.Type: ApplicationFiled: September 29, 2010Publication date: March 31, 2011Applicant: FUJIFILM CorporationInventors: Takayasu Yasuda, Masato Nagura
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Publication number: 20100052196Abstract: An optically driven actuator includes a crosslinked polymer obtained by crosslinking at least part of the side chains of a condensation polymer having, on its backbone chain, a photoisomerizable group that undergoes structural change under optical stimulation. The crosslinked polymer deforms reversibly depending on optical stimulation, thereby performing the function of an actuator.Type: ApplicationFiled: January 19, 2007Publication date: March 4, 2010Applicant: FUJIFILM CORPORATIONInventors: Takayasu Yasuda, Naoyuki Nishikawa
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Publication number: 20090130344Abstract: A novel composition is disclosed. The composition comprises, at least, a polymer material and inorganic fine particles having adsorbed thereto molecules having at least one adsorptive group to the inorganic fine particle and a group capable of forming a liquid crystal core. A film made of the composition is also disclosed.Type: ApplicationFiled: November 10, 2006Publication date: May 21, 2009Inventors: Masaki Okazaki, Takayasu Yasuda, Naoyuki Nishikawa, Tetsuo Kawano
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Publication number: 20090086140Abstract: Disclosed is a composition comprising at least one polymer compound represented by formula (1) below, and at least one polymerizable compound.Type: ApplicationFiled: September 26, 2008Publication date: April 2, 2009Applicant: FUJIFILM CorporationInventors: Takayasu Yasuda, Michitaka Matsuumi, Shinichi Morishima
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Publication number: 20090069528Abstract: An optically-driven actuator includes a condensation polymer containing, on its backbone chain, a photoisomerizable group that undergoes structural change under optical stimulation and deforming depending on the structural change of the photoisomerizable group. The condensation polymer deforms under optical stimulation and is functional as an actuator.Type: ApplicationFiled: December 6, 2006Publication date: March 12, 2009Applicant: FUJIFILM CORPORATIONInventors: Takayasu Yasuda, Naoyuki Nishikawa
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Patent number: 7343073Abstract: It is disclosed a polymerizable composition for producing an optical member for 850 nm wavelength comprising: a polymerizable monomer composition and a compound, having a different refractive index from that of the polymerizable monomer composition, whose structure has a benzene ring substituted by a substituent having a Hammett value of not greater than 0.04 or by plural substituents having an average value of Hammett values thereof of not greater than 0.04. It is also disclosed a polymerizable composition for producing an optical member comprising a polymerizable monomer composition comprising at least one selected from the group consisting of C7-20 alicyclic (meth)acrylates and a compound, having a different refractive index from that of the polymerizable monomer composition and having a solubility parameter of not greater than 10.9, whose structure has a benzene ring substituted by the substituent or the substituents defined above.Type: GrantFiled: November 14, 2003Date of Patent: March 11, 2008Assignee: FUJIFILM CorporationInventors: Takayasu Yasuda, Hiroki Sasaki, Ryoichi Nemori, Yuuichi Okamoto
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Patent number: 7144688Abstract: The present invention provides a photothermographic material having an image forming layer including at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent and a binder, on one surface of a support, and having at least one back layer and a back surface protective layer, on the other surface of the support, wherein a binder of the back surface protective layer contains a water-soluble polymer and a latex polymer having a glass transition temperature of ?30° C. to 40° C.; and an image forming method using the same. The photothermographic material and the image forming method of the invention provide excellent coating property and excellent transportability during thermal development in a thermal developing apparatus.Type: GrantFiled: May 20, 2004Date of Patent: December 5, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Hajime Nakagawa, Takayasu Yasuda
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Publication number: 20060056786Abstract: It is disclosed a polymerizable composition for producing an optical member for 850 nm wavelength comprising: a polymerizable monomer composition and a compound, having a different refractive index from that of the polymerizable monomer composition, whose structure has a benzene ring substituted by a substituent having a Hammett value of not greater than 0.04 or by plural substituents having an average value of Hammett values thereof of not greater than 0.04. It is also disclosed a polymerizable composition for producing an optical member comprising a polymerizable monomer composition comprising at least one selected from the group consisting of C7-20 alicyclic (meth) acrylates and a compound, having a different refractive index from that of the polymerizable monomer composition and having a solubility parameter of not greater than 10.9, whose structure has a benzene ring substituted by the substituent or the substituents defined above.Type: ApplicationFiled: November 14, 2003Publication date: March 16, 2006Inventors: Takayasu Yasuda, Hiroki Sasaki, Ryoichi Nemori, Yuuichi Okamoto