Patents by Inventor Koji Iijima
Koji Iijima 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: 20240134720Abstract: An apparatus including a processor, with processing circuitry configured to obtain a parameter at a time when a system call function is called by a system call; call a first system call function from a kernel, and returning a processing result of the first system call function, when a processing target in the first system call function to be called that is indicated by the parameter is not a monitoring target that affects an identity of data to be protected; and return a result as in a case where processing by the first system call function is successfully executed, or a processing result indicating an error, without calling the first system call function, when the processing target in the first system call function to be called that is indicated by the parameter is the monitoring target.Type: ApplicationFiled: December 11, 2023Publication date: April 25, 2024Applicant: DIGITAL INFORMATION TECHNOLOGIES CORPORATIONInventors: Noritaka IIJIMA, Tsutomu NAKAJIMA, Koji ONISHI
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Patent number: 11820930Abstract: An object of the present invention is to provide a polymer compound in which, by blending with a liquid crystal composition containing a liquid crystalline compound, alignment of the liquid crystalline compound in a phase difference layer to be obtained increases; and a liquid crystal composition, a phase difference layer, an optical film, a polarizing plate, and an image display device using the same. The polymer compound of the present invention is a polymer compound including a repeating unit represented by Formula (I), a repeating unit represented by Formula (II), a repeating unit represented by Formula (III), and a repeating unit represented by Formula (IV).Type: GrantFiled: March 22, 2021Date of Patent: November 21, 2023Assignee: FUJIFILM CorporationInventors: Shunya Katoh, Yuki Fukushima, Shuhei Okuda, Koji Iijima, Masato Nakao
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Publication number: 20220404535Abstract: According to the present invention, provided are an optical laminate which has excellent adhesiveness between two optically anisotropic layers, and in which an A plate or a layer obtained by fixing a twist-aligned liquid crystal phase, which is as an optically anisotropic layer, has excellent liquid crystal alignment properties, a polarizing plate, and an image display device.Type: ApplicationFiled: August 17, 2022Publication date: December 22, 2022Applicant: FUJIFILM CorporationInventors: Yutaka NOZOE, Kunihiro KASEZAWA, Koji IIJIMA
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Patent number: 11203655Abstract: An object of the present invention is to provide a polymer compound which can form a phase difference layer having high alignment and suppressed surface unevenness by being blended into a liquid crystal composition, and a liquid crystal composition, a phase difference layer, an optical film, a polarizing plate, and an image display device using the same. The polymer compound of the present invention includes a repeating unit represented by Formula (I), a repeating unit represented by Formula (II), and a repeating unit represented by Formula (III), in which an acid value is 115 mgKOH/g or more, and a hydroxyl value is 70 mgKOH/g or more.Type: GrantFiled: April 8, 2020Date of Patent: December 21, 2021Assignee: FUJIFILM CorporationInventors: Yuki Fukushima, Shunya Katoh, Koji Iijima, Shuhei Okuda
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Publication number: 20210207028Abstract: An object of the present invention is to provide a polymer compound in which, by blending with a liquid crystal composition containing a liquid crystalline compound, alignment of the liquid crystalline compound in a phase difference layer to be obtained increases; and a liquid crystal composition, a phase difference layer, an optical film, a polarizing plate, and an image display device using the same. The polymer compound of the present invention is a polymer compound including a repeating unit represented by Formula (I), a repeating unit represented by Formula (II), a repeating unit represented by Formula (III), and a repeating unit represented by Formula (IV).Type: ApplicationFiled: March 22, 2021Publication date: July 8, 2021Applicant: FUJIFILM CorporationInventors: Shunya KATOH, Yuki FUKUSHIMA, Shuhei OKUDA, Koji IIJIMA, Masato NAKAO
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Patent number: 10961458Abstract: A liquid crystal composition is provided which has excellent alignment properties, improves a surface state of an optically anisotropic layer to be formed, and improves adhesiveness with a polarizer, an optical film using the same, a polarizing plate, and an image display device. The liquid crystal composition according to the present invention is a liquid crystal composition containing a copolymer having a repeating unit represented by Formula (I) and a repeating unit represented by Formula (II), and a liquid crystal compound.Type: GrantFiled: March 21, 2019Date of Patent: March 30, 2021Assignee: FUJIFILM CorporationInventors: Masaaki Suzuki, Shunya Katoh, Koji Iijima, Yuki Nakamura
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Patent number: 10935710Abstract: The present invention relates to an optical film which ensures adhesiveness between a polymer film and a liquid crystal layer without deteriorating the alignment of a liquid crystal compound; a polarizing plate using the same; an image display device; a method for producing an optical film; and a method for producing a polarizing plate. The optical film includes a polymer film including a cycloolefin-based polymer, and a liquid crystal layer that is provided adjacent to the polymer film, in which the liquid crystal layer is formed by using a liquid crystal composition containing a liquid crystal compound and a compound having a specific structure, where the liquid crystal composition contains the compound having a specific structure at a content of 0.5% to 7.0% by mass with respect to a mass of the liquid crystal compound, and a predetermined eccentricity value is 20% to 80%.Type: GrantFiled: September 6, 2018Date of Patent: March 2, 2021Assignee: FUJIFILM CorporationInventors: Koji Iijima, Tatsuya Iwasaki, Katsufumi Ohmuro, Masaaki Suzuki
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Patent number: 10908338Abstract: The present invention provides an optical film exhibiting high alignment and good phase difference development in an oblique direction, and a polarizing plate and an image display device using the same. This optical film of the present invention has a substrate; and a phase difference layer which is provided on the substrate to be adjacent to the substrate, in which the phase difference layer is a layer formed by fixing vertical alignment of a liquid crystal compound having a polymerizable group included in a liquid crystal composition containing the liquid crystal compound and a polymer compound, a difference in ?a value between the polymer compound and the substrate, which is calculated using three-dimensional SP values, is 3 or less, and a content of the polymer compound is less than 10 parts by mass with respect to 100 parts by mass of the liquid crystal compound.Type: GrantFiled: February 4, 2019Date of Patent: February 2, 2021Assignee: FUJIFILM CorporationInventors: Shunya Katoh, Koji Iijima, Mitsuyoshi Ichihashi, Masaru Yoshikawa
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Publication number: 20200231727Abstract: An object of the present invention is to provide a polymer compound which can form a phase difference layer having high alignment and suppressed surface unevenness by being blended into a liquid crystal composition, and a liquid crystal composition, a phase difference layer, an optical film, a polarizing plate, and an image display device using the same. The polymer compound of the present invention includes a repeating unit represented by Formula (I), a repeating unit represented by Formula (II), and a repeating unit represented by Formula (III), in which an acid value is 115 mgKOH/g or more, and a hydroxyl value is 70 mgKOH/g or more.Type: ApplicationFiled: April 8, 2020Publication date: July 23, 2020Applicant: FUJIFILM CorporationInventors: Yuki Fukushima, Shunya Katoh, Koji Iijima, Shuhei Okuda
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Publication number: 20190218460Abstract: An object of the present invention is a liquid crystal composition which has excellent alignment properties, improves a surface state of an optically anisotropic layer to be formed, and improves adhesiveness with a polarizer, an optical film using the same, a polarizing plate, and an image display device. The liquid crystal composition according to the present invention is a liquid crystal composition containing a copolymer having a repeating unit represented by Formula (I) and a repeating unit represented by Formula (II), and a liquid crystal compound.Type: ApplicationFiled: March 21, 2019Publication date: July 18, 2019Applicant: FUJIFILM CorporationInventors: Masaaki SUZUKI, Shunya KATOH, Koji IIJIMA, Yuki NAKAMURA
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Publication number: 20190170922Abstract: The present invention provides an optical film exhibiting high alignment and good phase difference development in an oblique direction, and a polarizing plate and an image display device using the same. This optical film of the present invention has a substrate; and a phase difference layer which is provided on the substrate to be adjacent to the substrate, in which the phase difference layer is a layer formed by fixing vertical alignment of a liquid crystal compound having a polymerizable group included in a liquid crystal composition containing the liquid crystal compound and a polymer compound, a difference in ?a value between the polymer compound and the substrate, which is calculated using three-dimensional SP values, is 3 or less, and a content of the polymer compound is less than 10 parts by mass with respect to 100 parts by mass of the liquid crystal compound.Type: ApplicationFiled: February 4, 2019Publication date: June 6, 2019Applicant: FUJIFILM CorporationInventors: Shunya KATOH, Koji IIJIMA, Mitsuyoshi ICHIHASHI, Masaru YOSHIKAWA
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Publication number: 20190004225Abstract: The present invention relates to an optical film which ensures adhesiveness between a polymer film and a liquid crystal layer without deteriorating the alignment of a liquid crystal compound; a polarizing plate using the same; an image display device; a method for producing an optical film; and a method for producing a polarizing plate. The optical film includes a polymer film including a cycloolefin-based polymer, and a liquid crystal layer that is provided adjacent to the polymer film, in which the liquid crystal layer is formed by using a liquid crystal composition containing a liquid crystal compound and a compound having a specific structure, where the liquid crystal composition contains the compound having a specific structure at a content of 0.5% to 7.0% by mass with respect to a mass of the liquid crystal compound, and a predetermined eccentricity value is 20% to 80%.Type: ApplicationFiled: September 6, 2018Publication date: January 3, 2019Applicant: FUJIFILM CorporationInventors: Koji IIJIMA, Tatsuya IWASAKI, Katsufumi OHMURO, Masaaki SUZUKI
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Patent number: 10144199Abstract: The present invention provides a cellulose acylate film, containing: an organic acid satisfying requirements of a to c, in which a film thickness of the cellulose acylate film is greater than or equal to 3 ?m, and an average concentration of the organic acid in a region from one surface of the cellulose acylate film to a depth of 0 to 0.2 ?m is lower than an average concentration of the organic acid in a residual region other than the region: a: having a structure in which polyhydric alcohol and a polyvalent carboxylic acid are bonded by forming an ester bond; b: the total number of molecules of polyhydric alcohol and a monovalent or more carboxylic acid forming the organic acid being greater than or equal to 3; and c: having at least one non-substituted carboxyl group derived from a polyvalent carboxylic acid.Type: GrantFiled: February 15, 2017Date of Patent: December 4, 2018Assignee: FUJIFILM CorporationInventors: Takashi Tamada, Koji Iijima, Nobuhiko Ichihara
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Publication number: 20180287036Abstract: A thermoelectric power generation device includes a plurality of units that are stacked, each unit including a thermoelectric module containing at least one thermoelectric element, and a first plate and a second plate interposing the thermoelectric module therebetween, wherein a spacer is interposed between a surface of one of the first plates facing away from the corresponding thermoelectric module and a surface of the opposing second plate facing away from the corresponding thermoelectric module, the spacer contacting the first plate and the second plate and defining a fluid passage jointly with the first plate and the second plate, and wherein the fluid passages defined between the adjacent units are configured to receive supply of high temperature fluid and low temperature fluid in an alternating manner in a stacking direction of the units. The plates can be conformed to the thermoelectric module, and the stiffness of the plate can be increased.Type: ApplicationFiled: October 3, 2016Publication date: October 4, 2018Inventors: Noriaki YUKAWA, Hisashi KANOU, Toshio MITSUYASU, Yutaka MIYAMOTO, Shinji NAKAMURA, Koji IIJIMA, Minoru MATSUSHITA, Masamune YANAGIHARA, Kazuo MATSUDA, Tadashi MATSUMOTO, Toshihide HIRAI, Satoshi TANAKA
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Publication number: 20180272593Abstract: A phase difference film includes a liquid crystal layer in which a disk-like liquid crystal compound is fixed in a homeotropic alignment state, in which an in-plane retardation Re of the liquid crystal layer satisfies 200 nm?Re?300 nm and a retardation Rth in a thickness direction satisfies ?30 nm?Rth.Type: ApplicationFiled: May 29, 2018Publication date: September 27, 2018Applicant: FUJIFILM CorporationInventors: Koji IIJIMA, Jun TAKEDA, Katsufumi OHMURO
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Publication number: 20170283701Abstract: A polymer is obtained by polymerizing a monomer having two or more radical polymerizable double bonds and one or more hydroxyl groups. A composition including the polymer, an optical film including a cholesteric liquid crystal layer containing the polymer on a support, and a liquid crystal display device including at least a backlight unit including the optical film and a liquid crystal cell are provided.Type: ApplicationFiled: June 9, 2017Publication date: October 5, 2017Applicant: FUJIFILM CorporationInventors: Akio TAMURA, Koji IIJIMA
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Publication number: 20170157900Abstract: The present invention provides a cellulose acylate film, containing: an organic acid satisfying requirements of a to c, in which a film thickness of the cellulose acylate film is greater than or equal to 3 ?m, and an average concentration of the organic acid in a region from one surface of the cellulose acylate film to a depth of 0 to 0.2 ?m is lower than an average concentration of the organic acid in a residual region other than the region: a: having a structure in which polyhydric alcohol and a polyvalent carboxylic acid are bonded by forming an ester bond; b: the total number of molecules of polyhydric alcohol and a monovalent or more carboxylic acid forming the organic acid being greater than or equal to 3; and c: having at least one non-substituted carboxyl group derived from a polyvalent carboxylic acid.Type: ApplicationFiled: February 15, 2017Publication date: June 8, 2017Applicant: FUJIFILM CorporationInventors: Takashi TAMADA, Koji IIJIMA, Nobuhiko ICHIHARA
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Publication number: 20110244218Abstract: A coating composition is provided and includes: (a) inorganic particles having an average particle size of 1 to 100 nm; (b) an ionizing radiation-curing material for forming a binder; (c) a photopolymerization initiator; and (d) an organic solvent. The coating composition preferably includes a monomer having at least two hydroxyl groups per molecule in a mass fraction of 0.1 to 3.0 mass % relative to the total solid content of the composition.Type: ApplicationFiled: March 30, 2011Publication date: October 6, 2011Applicant: FUJIFILM CorporationInventors: Takato Suzuki, Kenichi Fukuda, Koji Iijima
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Patent number: 8015802Abstract: An inlet chamber 40 and outlet chamber 50 for exhaust gas are integrated as an inflow/outflow section 80, and a first post treatment device 10 equipped with a DPF 13 at its central portion and second post-treatment device 20 equipped with a urea DeNOx catalyst 23 on its outer periphery side are integrated as a catalyst installation section 70. The catalyst installation section 70, the inflow/outflow section 80, and a communication chamber forming section 30 are provided separately and detachably from one another, and the catalyst installation section 70 is made installable in a reversible manner. As a result, by reversing the catalyst installation section 70, it is possible to easily reverse the DPF 13 without having to extract it from the central part. Further, since the urea DeNOx catalyst 23 is reversed simultaneously, it is possible to change the direction in which the exhaust gas flows therein, thereby enabling to prevent unbalanced deterioration of the urea DeNOx catalyst 23.Type: GrantFiled: November 24, 2005Date of Patent: September 13, 2011Assignee: Komatsu Ltd.Inventors: Toshihiko Nishiyama, Koji Iijima
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Patent number: 7995429Abstract: There are provided an optical disk device and tilt correction processing method for performing recording/reproduction by rapidly acquiring an optimal tilt correction value for an optical disk having a plurality of recording/reproducing layers. In an optical disk device capable of recording or reproducing information by irradiating a laser beam to each of a plurality of recording/reproducing layers of an optical disk, the tilt value is stepwise set within a predetermined range at a predetermined radius position of the recording/reproducing layer located at the farthest distance from the laser beam irradiation side so that an optimal tilt correction value can be obtained from the quadratic function by the method of least squares of the jitter or the like obtained from the disk. By applying the optimal tilt value obtained to the other recording/reproducing layer, it is possible to start recording or reproduction in a short time.Type: GrantFiled: December 2, 2009Date of Patent: August 9, 2011Assignee: Hitachi, Ltd.Inventors: Koji Iijima, Motoyuki Suzuki, Junji Nakajima