Patents by Inventor Toshio Yoshihara
Toshio Yoshihara 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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Publication number: 20130122311Abstract: The present invention provides an optical layered body having excellent antistatic properties, optical characteristics, hardness, adhesion, and interference fringe prevention performance, which can be produced at a low cost. An optical layered body having a hard coat layer provided on a triacetylcellulose substrate, wherein a resin composition used for forming the hard coat layer contains a quaternary ammonium salt-containing polymer, a binder resin, and a solvent; the quaternary ammonium salt-containing polymer has a higher hydrophilicity than the binder resin; and the binder resin contains two or more resin components having different hydrophilicities.Type: ApplicationFiled: May 12, 2011Publication date: May 16, 2013Applicant: Dai Nippon Printing Co., Ltd.Inventors: Toshio Yoshihara, Tomoyuki Horio, Mayu Youki
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Patent number: 8431289Abstract: The volume hologram recording photosensitive composition provided by the present invention contains at least a fluorine-contained photoreactive compound represented by the following formula (1): R1—R3—(CF2)n-R4—R2 wherein R1 and R2 are photoreactive groups which can be bonded to each other by photoreaction, and each of R3 and R4 is independently a single bond or a bivalent hydrocarbon group having 1 to 5 carbon atoms, and n is an integer of 1 or more. This volume hologram recording photosensitive composition is used to form a recording section of a recording medium, and then the section is exposed to light, whereby a bright volume hologram can be obtained.Type: GrantFiled: June 29, 2010Date of Patent: April 30, 2013Assignee: Dai Nippon Printing Co., Ltd.Inventors: Hiroyuki Otaki, Toshio Yoshihara, Yoshihito Maeno
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Patent number: 8354162Abstract: An anti-glare film having the following: an anti-glare layer which is provided on a transparent substrate film, has a concavo-convex shape on the outermost surface thereof, and has at least a concavo-convex layer formed by curing a curable resin composition, which composition has optically-transparent fine particles A that have an average particle diameter of 1 ?m or more and 10 ?m or less, reactive inorganic fine particles B that have an average particle diameter of 30 nm or more and 100 nm or less and reactive functional groups b on the surface thereof, and a binder component C that has reactive functional groups c; a skin layer which has a small number of the reactive inorganic fine particles B in an interface on the side opposite to the transparent substrate film side and in the vicinity of the interface; and a region which is situated nearer the transparent substrate film than the skin layer, in which the fine particles B are uniformly dispersed.Type: GrantFiled: March 25, 2008Date of Patent: January 15, 2013Assignee: Dai Nippon Printing Co., Ltd.Inventors: Toshio Yoshihara, Akinobu Ushiyama, Ai Shinkai
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Patent number: 8301071Abstract: An image forming apparatus includes an acquisition unit for acquiring information for identifying a user, a log-in unit for allowing the user to log in the image forming apparatus when the acquisition unit acquires the information for identifying the user, a log-off unit for causing the logged-in user to log off from the image forming apparatus after a first predetermined time period elapses, a determination unit for determining whether a secure printing job to be performed based on the acquired information for identifying the user is present in the image forming apparatus, and a control unit for controlling the log-off unit to cause the user to log off from the image forming apparatus within a second predetermined time period which is shorter than the first predetermined period time, when the determination unit determines that the secure printing job is present in the image forming apparatus.Type: GrantFiled: July 23, 2010Date of Patent: October 30, 2012Assignee: Canon Kabushiki KaishaInventor: Toshio Yoshihara
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Publication number: 20120251778Abstract: A hard coat film excellent in abrasion resistance and saponification resistance. A hard coat layer includes a cured product of a curable resin composition containing a reactive inorganic fine particle having an average particle diameter of 5 nm to 30 nm, and has a skin layer, wherein the reactive inorganic fine particles are localized, in its surface region being an interface and its vicinity on a side opposite to a transparent substrate film side of the hard coat layer. Alternatively, the reactive inorganic fine particle has an average particle diameter of 30 nm to 100 nm, and has density distribution in a thickness direction of the hard coat layer lowest at an interface on a side opposite to a transparent substrate film side of the hard coat layer while the density is highest at an interface and its vicinity on the transparent substrate film side of the hard coat layer.Type: ApplicationFiled: June 18, 2012Publication date: October 4, 2012Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Emi SHIMANO, Toshio YOSHIHARA
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Publication number: 20120050759Abstract: Printing is done on printing paper using a transparent toner, and the printing result is previewed. When displaying the result of printing on plain paper using the transparent toner, the display is controlled to display the luminance of a region where the transparent toner is applied, to be higher than that of an image indicating the plain paper. When applying the transparent toner to glossy paper, the display is controlled to display the luminance of the region where the transparent toner is applied, to be lower than that of an image indicating the glossy paper.Type: ApplicationFiled: December 1, 2010Publication date: March 1, 2012Applicant: CANON KABUSHIKI KAISHAInventor: Toshio Yoshihara
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Patent number: 8080309Abstract: A coating composition forms a coating film having an eliminated or reduced photocatalytic action-derived deterioration, and forms a coating film having a lowered haze value, excellent dispersibility and dispersion stability in a coating liquid form, excellent storage stability, and also excellent coatability. The coating composition includes at least the following four components: titanium dioxide fine particles with eliminated or reduced photocatalytic activity which is obtained by surface treating titanium dioxide fine particles doped with cobalt capable of capturing free electrons and/or holes, with a zinc chelate compound capable of capturing free electrons and/or holes; a binder component; a dispersant; and an organic solvent.Type: GrantFiled: March 3, 2005Date of Patent: December 20, 2011Assignee: Dai Nippon Printing Co., Ltd.Inventors: Seiji Shinohara, Takahiro Niimi, Toshio Yoshihara
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Publication number: 20110268875Abstract: There are provided an antireflection film for use primarily in displays such as LCDs, which exhibits both antifouling properties and mar-proofness, as well as a process for its production, the antireflection film comprising at least one functional layer and a low refractive index layer laminated in that order on a transparent base material, wherein the at least one functional layer contains leveling agent A in contact with the low refractive index layer, the low refractive index layer containing in addition to leveling agent B, the leveling agent A that has migrated from the at least one functional layer, further wherein the migrated leveling agent A and leveling agent B are uniformly distributed at the surface of the low refractive index layer, and the process for its production including: coating a functional layer-forming composition containing leveling agent A onto a transparent base material or a functional layer preformed thereover; half-curing it to form a functional layer in contact with the low reType: ApplicationFiled: July 7, 2011Publication date: November 3, 2011Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Toshio YOSHIHARA, Tomoyuki HORIO
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Publication number: 20110217541Abstract: A hard coat film excellent in abrasion resistance and saponification resistance. A hard coat layer includes a cured product of a curable resin composition containing a reactive inorganic fine particle having an average particle diameter of 5 nm to 30 nm, and has a skin layer, wherein the reactive inorganic fine particles are localized, in its surface region being an interface and its vicinity on a side opposite to a transparent substrate film side of the hard coat layer. Alternatively, the reactive inorganic fine particle has an average particle diameter of 30 nm to 100 nm, and has density distribution in a thickness direction of the hard coat layer lowest at an interface on a side opposite to a transparent substrate film side of the hard coat layer while the density is highest at an interface and its vicinity on the transparent substrate film side of the hard coat layer.Type: ApplicationFiled: August 8, 2008Publication date: September 8, 2011Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Emi Shimano, Toshio Yoshihara
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Patent number: 7986389Abstract: An adhesive layer attaining, in a single layer, both adhesiveness permitting direct attachment to a glass plate disposed on the front face of a display device and desired optical filter functions and hardly undergoing the change in spectral characteristics attributable to deterioration in a light absorbing agent, even during long-time use, particularly at high temperature under high humidity, as well as a composite filter using this adhesive layer. The adhesive layer has optical filter functions, containing a block copolymer having at least a specific triblock structure in its molecule and having a weight-average molecular weight of 50,000 or more and a molecular-weight distribution (Mw/Mn) of less than 1.5 and one or more light absorbing agents each having light absorption in a predetermined wavelength region, as well as a composite filter using this adhesive layer.Type: GrantFiled: June 28, 2007Date of Patent: July 26, 2011Assignee: Dai Nippon Printing Co., Ltd.Inventors: Yudai Yamashita, Hideki Imamura, Yuka Hiwatashi, Toshio Yoshihara
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Publication number: 20110020026Abstract: An image forming apparatus includes an acquisition unit for acquiring information for identifying a user, a log-in unit for allowing the user to log in the image forming apparatus when the acquisition unit acquires the information for identifying the user, a log-off unit for causing the logged-in user to log off from the image forming apparatus after a first predetermined time period elapses, a determination unit for determining whether a secure printing job to be performed based on the acquired information for identifying the user is present in the image forming apparatus, and a control unit for controlling the log-off unit to cause the user to log off from the image forming apparatus within a second predetermined time period which is shorter than the first predetermined period time, when the determination unit determines that the secure printing job is present in the image forming apparatus.Type: ApplicationFiled: July 23, 2010Publication date: January 27, 2011Applicant: CANON KABUSHIKI KAISHAInventor: Toshio Yoshihara
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Patent number: 7824822Abstract: The volume hologram recording photosensitive composition provided by the present invention contains at least a fluorine-contained photoreactive compound represented by the following formula (1): R1—R3—(CF2)n-R4—R2 wherein R1 and R2 are photoreactive groups which can be bonded to each other by photoreaction, and each of R3 and R4 is independently a single bond or a bivalent hydrocarbon group having 1 to 5 carbon atoms, and n is an integer of 1 or more. This volume hologram recording photosensitive composition is used to form a recording section of a recording medium, and then the section is exposed to light, whereby a bright volume hologram can be obtained.Type: GrantFiled: July 8, 2003Date of Patent: November 2, 2010Assignee: Dai Nippon Printing Co., Ltd.Inventors: Hiroyuki Otaki, Toshio Yoshihara, Yoshihito Maeno
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Publication number: 20100266936Abstract: The volume hologram recording photosensitive composition provided by the present invention contains at least a fluorine-contained photoreactive compound represented by the following formula (1): R1—R3—(CF2)n-R4—R2 wherein R1 and R2 are photoreactive groups which can be bonded to each other by photoreaction, and each of R3 and R4 is independently a single bond or a bivalent hydrocarbon group having 1 to 5 carbon atoms, and n is an integer of 1 or more. This volume hologram recording photosensitive composition is used to form a recording section of a recording medium, and then the section is exposed to light, whereby a bright volume hologram can be obtained.Type: ApplicationFiled: June 29, 2010Publication date: October 21, 2010Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Hiroyuki OTAKI, Toshio YOSHIHARA, Yoshihito MAENO
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Patent number: 7776436Abstract: A hardcoat for a plastic substrate film is provided which has good suitability for printing and satisfactory hardness, can prevent influence of the deformation of a plastic substrate film from extending to the hardcoat, and is resistant to cracking and peeling. The hardcoat is produced from a coating component containing one or more organic components having a polymerizable functional group and an inorganic filler, at least one of the organic components being free from a hydrogen bond-forming group. In the hard coat, the content of the inorganic filler in the surface of the hardcoat is higher than that in the interior of the hardcoat. The hardcoat can be applied to antireflection films and hologram labels.Type: GrantFiled: August 12, 2003Date of Patent: August 17, 2010Assignee: Dai Nippon Printing Co., Ltd.Inventors: Toshio Yoshihara, Yurie Ota, Nobuko Takahashi, Noboru Kunimine, Satoshi Shioda, Mikiko Hojo
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Publication number: 20100196687Abstract: The present invention is to provide an antireflection laminate for use mainly in displays such as LCDs and PDPs, which has a refractive index layer that has, while comprising hollow and solid particles, excellent abrasion resistance, a refractive index of 1.45 or less, and low reflectivity. This object was achieved by an antireflection laminate which comprises a refractive index layer that has a refractive index of 1.Type: ApplicationFiled: March 28, 2008Publication date: August 5, 2010Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Saki Isono, Toshio Yoshihara
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Publication number: 20100189971Abstract: An antireflection laminate for use mainly in displays such as LCDs and PDPs, which has a refractive index layer that has, while comprising hollow and solid particles, excellent abrasion resistance, a refractive index of 1.45 or less, and low reflectivity is disclosed. The refractive index layer is obtained by irradiating a refractive index layer forming composition with ionizing radiation, the composition including an ionizing radiation curable resin, a crosslinkable hollow particle having an inside that is porous or hollow and is covered with an outer shell layer and having a surface that is modified with a crosslinkable group(s), and a crosslinkable solid particle having an inside that is neither porous nor hollow and having a surface that is modified with a crosslinkable group(s). The crosslinkable groups comprise an ionizing radiation curable group each and have an identical structure or a very similar structure.Type: ApplicationFiled: January 29, 2010Publication date: July 29, 2010Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Saki ISONO, Toshio YOSHIHARA
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Publication number: 20100143674Abstract: The invention provides a hard coat film with transparency and mar-proofness, obtained by coating, drying and curing on a transparent base film a curable resin composition for a hard coat layer comprising (1) reactive inorganic fine particles A, (2) hydrophilic fine particles B and (3) a curable reactive matrix containing a binder component C that has a reactive functional group c with crosslinking reactivity for the reactive inorganic fine particles A, wherein the content of the hydrophilic fine particles B is 0.1-5.0 wt % with respect to the total solid content, and desired irregularities are formed in the hard coat layer surface, preferably with raised sections having heights of from 3 nm to 50 nm, and spacings between the raised sections of 50 nm-5 ?m.Type: ApplicationFiled: October 29, 2008Publication date: June 10, 2010Inventors: Toshio Yoshihara, Emi Shimano
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Publication number: 20100112296Abstract: An anti-glare film having the following: an anti-glare layer which is provided on a transparent substrate film, has a concavo-convex shape on the outermost surface thereof, and has at least a concavo-convex layer formed by curing a curable resin composition, which composition has optically-transparent fine particles A that have an average particle diameter of 1 ?m or more and 10 ?m or less, reactive inorganic fine particles B that have an average particle diameter of 30 nm or more and 100 nm or less and reactive functional groups b on the surface thereof, and a binder component C that has reactive functional groups c; a skin layer which has a small number of the reactive inorganic fine particles B in an interface on the side opposite to the transparent substrate film side and in the vicinity of the interface; and a region which is situated nearer the transparent substrate film than the skin layer, in which the fine particles B are uniformly dispersed.Type: ApplicationFiled: March 25, 2008Publication date: May 6, 2010Inventors: Toshio Yoshihara, Akinobu Ushiyama, Ai Shinkai
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Patent number: 7629086Abstract: A photosensitive composition and A photosensitive medium for volume hologram recording comprises a photopolymerization reactive compound (a monomer) and any one of the following binder: (a) an organic-inorganic hybrid polymer obtainable by copolymerizing an organometallic compound of the formula 1 “R1m M1 (OR2)n” and an ethylenic monomer and/or its hydrolyzed polycondensate; (b) an organic-inorganic hybrid polymer obtainable by copolymerizing an organometallic compound of the formula 3 “R4m Si(OR5)n” and an ethylenic monomer and/or its hydrolyzed polycondensate; and (c) a binder resin bonded to a metal or a combination use of a binder resin containing a hydroxyl group and/or carboxyl group and a metal chelate compound.Type: GrantFiled: March 26, 2008Date of Patent: December 8, 2009Assignee: Dai Nippon Printing Co., Ltd.Inventors: Hiroyuki Otaki, Toshio Yoshihara
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Publication number: 20090279168Abstract: The object of the invention is to provide an adhesive composition attaining, in a single layer, both adhesiveness capable of direct attachment to a glass plate disposed on the front face of a display device and desired optical filter functions and hardly undergoing the change in spectral characteristics attributable to deterioration in a light absorbing agent, even during long-time use, particularly at high temperature under high humidity, as well as an optical filter using this adhesive composition. The object is solved by an optical filter comprising an adhesive layer having optical filter functions, comprising a block copolymer (I) having at least a specific triblock structure in its molecule and having a weight average molecular weight of 50,000 or more and a molecular weight distribution (Mw/Mn) of less than 1.5, a resin (IV) having the glass transition temperature of 60° C. or more and one or more light absorbing agents (III) each having light absorption in a predetermined wavelength region.Type: ApplicationFiled: September 28, 2007Publication date: November 12, 2009Inventors: Yuka Hiwatashi, Toshio Yoshihara, Yudai Yamashita, Hiroyuki Ohtaki