Patent application number | Description | Published |
20090317042 | RARE EARTH-DOPED CORE OPTICAL FIBER AND MANUFACTURING METHOD THEREOF - A rare earth-doped core optical fiber of the present invention includes a core comprising a silica glass containing at least aluminum and ytterbium, and a clad provided around the core and comprising a silica glass having a lower refraction index than that of the core, wherein the core has an aluminum concentration of 2% by mass or more, and ytterbium is doped into the core at such a concentration that the light absorption band which appears around a wavelength of 976 nm in the light absorption band by ytterbium contained in the core shows a peak light absorption rate of 800 dB/m or less. | 12-24-2009 |
20100067860 | RARE EARTH-DOPED CORE OPTICAL FIBER - A rare earth-doped core optical fiber includes a core comprising a silica glass containing at least aluminum and ytterbium, a clad provided around the core and comprising a silica glass having a lower refraction index than that of the core, and a polymer layer provided on the outer circumference of the clad and having a lower refractive index than that of the clad, wherein aluminum and ytterbium are doped into the core such that a loss increase by photodarkening, T | 03-18-2010 |
20100276822 | RARE EARTH-DOPED CORE OPTICAL FIBER AND MANUFACTURING METHOD THEREOF - A rare earth-doped core optical fiber of the present invention includes a core comprising a silica glass containing at least aluminum and ytterbium, and a clad provided around the core and comprising a silica glass having a lower refraction index than that of the core, wherein the core has an aluminum concentration of 2% by mass or more, and ytterbium is doped into the core at such a concentration that the absorption band which appears around a wavelength of 976 nm in the absorption band by ytterbium contained in the core shows a peak absorption coefficient of 800 dB/m or less. | 11-04-2010 |
Patent application number | Description | Published |
20100149231 | IMAGE FORMING METHOD - Provided is a method for forming an image using an ink-jet recording method which forms the image with a single pass printing method employing an ink comprising water in an amount of 20 to 90 weight % based on the total weight of the ink, a pigment and a water soluble resin containing an acidic group which is neutralized with ammonia or an amine compound, the method containing the steps of: applying a processing solution on a coated paper for printing; and ejecting droplets of the ink on the coated paper for printing, wherein the processing solution is capable of aggregating an ingredient of the ink or increasing a viscosity of the ink, and the coated paper for printing is heated from 40 to 60° C. during the step of ejecting the droplets of the ink. | 06-17-2010 |
20100245508 | IMAGE FORMING METHOD - Disclosed is a method for forming an image with an ink-jet recoding method which forms the image on a coated printing paper by employing an ink containing water in an amount of 20 to 90 weight based on the total weight of the ink, a pigment and a resin, the method containing the sequential steps of: applying an aqueous processing solution on the coated printing paper; drying the aqueous processing solution applied on the coated printing paper; and ejecting droplets of the ink on the coated printing paper, wherein the aqueous processing solution is capable of aggregating the ink or increasing a viscosity of the ink, and the coated printing paper is heated from 40 to 60° C. during the step of ejecting the droplets of the ink. | 09-30-2010 |
20100253734 | METHOD FOR FORMING INK-JET IMAGE - Provided are an aqueous ink-jet ink and a method for forming an ink-jet image enabling to decrease bleed occurrence during high-speed printing and to realize highly detailed image quality. An aqueous ink-jet ink characterized by containing water, a pigment, an organic or inorganic amine salt, and a water-soluble resin having a higher pKa than an acid component formed by dissociation of the amine salt in an ink. | 10-07-2010 |
20130141505 | ACTINIC ENERGY RADIATION CURABLE INKJET INK AND ACTINIC ENERGY RADIATION CURABLE INKJET RECORDING METHOD - Provided are an actinic energy radiation curable ink, which can achieve a high fineness and natural glossiness when recording is carried out onto a non-absorptive recording medium such as a film or a laminated paper or a slightly absorptive recording medium such as a coated paper; and an actinic energy radiation curable inkjet recording method. This actinic energy radiation curable ink, which is to be used in inkjet recording, is characterized by: said actinic energy radiation curable ink undergoing reversible sol/gel phase transition depending on temperature; said actinic energy radiation curable ink containing from 1% or more by mass to less than 10% by mass of a gelling agent; and, at temperature Tm (° C.) that is separately defined, the storage elastic modulus (G′) of the actinic energy radiation curable ink being from 0.1 or more Pa to less than 1000 Pa and the storage elastic modulus (G′) being smaller than the loss elastic modulus (G″) thereof. | 06-06-2013 |
20130335479 | ACTIVE RAY-CURABLE INKJET INK, AND IMAGE FORMATION METHOD - The active ray-curable inkjet ink comprises a gelling agent, photopolymerizable compounds and a photoinitiator, and reversibly transitions into a sol-gel phase according to the temperature. Therein: (1) a (meth)acrylate compound having a molecular weight of 300-1,500 and having 3.44 (—CH | 12-19-2013 |
20140002534 | ACTINIC RAY CURABLE INKJET INK AND IMAGE RECORDING METHOD USING SAME | 01-02-2014 |
20150015648 | ACTINIC RADIATION-CURABLE INKJET INK AND IMAGE FORMING METHOD USING SAME - Provided is an actinic radiation-curable inkjet ink that undergoes sol-gel phase transfer and contains a dye, a gelling agent, a photopolymerization compound and a photopolymerization initiator. The actinic radiation-curable inkjet ink comprises a photopolymerizable compound A, which is a (meth)acrylate having hydroxyl groups; a photopolymerizable compound B, which is a (meth)acrylate compound having a molecular weight within a range of 300 to 1,500 and an intramolecular structure (—CH | 01-15-2015 |
20150070451 | IMAGE-FORMING METHOD - An image-forming method that comprises: a process of discharging a radiation-curable inkjet ink, which contains a photopolymerizable compound, a photopolymerization initiator, and a gelling agent and which undergoes a phase transition depending on the temperature, on a recording medium; and a process of curing the radiation-curable inkjet ink discharged on the recording medium by irradiating active radiation thereon. The method performs the irradiation with the active radiation so that the maximum illuminance at the surface of the recording medium is 2-5 W/cm | 03-12-2015 |
Patent application number | Description | Published |
20130287432 | IMAGE FORMING APPARATUS - Disclosed is an image forming apparatus including an image forming unit that forms an image on a recording medium, an image reading unit that is provided above the image forming unit so as to read an image of a document, a frame that accommodates the image forming unit therein, including a pair of front and rear planar members disposed so as to face each other and a beam portion that connects the pair of planar members and supports upward the image reading unit, and a cover that covers at least a portion of the frame, provided with an opening portion of which an upper edge portion is supported by the beam portion. | 10-31-2013 |
20140212178 | TONER TRANSPORT DEVICE, AND IMAGE FORMING APPARATUS - Provided is a toner transport device including a transport member that transports a developer in one direction, a toner feeding member disposed adjacent to, in a direction crossing the one direction, an end portion of the transport member, and a housing that is provided with a toner receiving port which receives supply of toner in an upper section of the toner feeding member, and accommodates the transport member and the toner feeding member, wherein the toner feeding member includes a rotating shaft, and a flat plate portion that protrudes in a direction away from a shaft member with one side thereof being connected to the shaft member and a front end portion away from the shaft member having a tapered shape, the flat plate portion rotating along with rotation of the shaft member to scrape the toner that moves from the toner receiving port toward the toner feeding member. | 07-31-2014 |