Patent application number | Description | Published |
20090009844 | Scanning optical system, optical scanning apparatus and image forming apparatus - A scanning optical system includes: a light source for emitting a light flux with a wavelength λ; a polygon mirror comprising a plurality of reflection surfaces for deflecting the light flux emitted from the light source for scanning the scanning surface; a light-converging lens group in a two-element structure. The light-converging lens group is arranged between the polygon mirror and the scanning surface and forms a light spot on the scanning surface. In the scanning optical system, the wavelength λ is not larger than 600 nm, and the scanning optical system satisfies a conditional expression relating to a number of the reflection surfaces of the polygon mirror, a scanning width of the scanning optical system, and a focal length of the light-converging lens group in a main scanning direction. | 01-08-2009 |
20100245959 | Scan Optical System, Light Scan Device, and Image Formation Device - An imaging lens good in mass-productivity, compact, low in manufacturing cost, good in aberration performance is provided by effectively correcting aberrations without greatly varying the variation of the thickness of a curing resin. An imaging device having such an imaging lens and a portable terminal are also provided. A third lens (L | 09-30-2010 |
20100309537 | Scanning Optical System, Optical Scanning Device, and Image forming Device - A scanning optical system is provided with a light source device ( | 12-09-2010 |
Patent application number | Description | Published |
20120279620 | HIGH STRENGTH HOT-ROLLED STEEL PLATE EXHIBITING EXCELLENT ACID PICKLING PROPERTY, CHEMICAL CONVERSION PROCESSABILITY, FATIGUE PROPERTY, STRETCH FLANGEABILITY, AND RESISTANCE TO SURFACE DETERIORATION DURING MOLDING, AND HAVING ISOTROPIC STRENGTH AND DUCTILITY, AND METHOD FOR PRODUCING SAID HIGH STRENGTH HOT-ROLLED STEEL PLATE - This high strength hot-rolled steel sheet includes: in terms of percent by mass, C: 0.05 to 0.12%; Si: 0.8 to 1.2%; Mn: 1.6 to 2.2%; Al: 0.30 to 0.6%; P: 0.05% or less; S: 0.005% or less; and N: 0.01% or less, with the remainder being Fe and unavoidable impurities, wherein a microstructure includes specific ranges (in area %) of ferrite phases as well as martensite phases, and a maximum concentration of Al detected by a glow discharge emission spectroscopic analysis is in a range of 0.75 mass % or less in a region from a surface of the steel sheet to a thickness of 500 nm after being acid-pickled. | 11-08-2012 |
20140044987 | STEEL SHEET FOR HOT STAMPING MEMBER AND METHOD OF PRODUCING SAME - A steel sheet for a hot stamping member contains, as a chemical composition, 0.10 mass % to 0.35 mass % of C; 0.01 mass % to 1.0 mass % of Si; 0.3 mass % to 2.3 mass % of Mn; 0.01 mass % to 0.5 mass % of Al; limited to 0.03 mass % or less of P; limited to 0.02 mass % or less of S; limited to 0.1 mass % or less of N; and a balance consisting of Fe and unavoidable impurities, in which a standard deviation of diameters of iron carbides which are contained in a region from a surface to a ¼ thickness position of the steel sheet is less than or equal to 0.8 μm. | 02-13-2014 |
20140360631 | HIGH STRENGTH HOT-ROLLED STEEL PLATE EXHIBITING EXCELLENT ACID PICKLING PROPERTY, CHEMICAL CONVERSION PROCESSABILITY, FATIGUE PROPERTY, STRETCH FLANGEABILITY, AND RESISTANCE TO SURFACE DETERIORATION DURING MOLDING, AND HAVING ISOTROPIC STRENGTH AND DUCTILITY - This high strength hot-rolled steel sheet includes: in terms of percent by mass, C: 0.05 to 0.12%; Si: 0.8 to 1.2%; Mn: 1.6 to 2.2%; Al: 0.30 to 0.6%; P: 0.05% or less; S: 0.005% or less; and N: 0.01% or less, with the remainder being Fe and unavoidable impurities, wherein a microstructure includes specific ranges (in area %) of ferrite phases as well as martensite phases, and a maximum concentration of Al detected by a glow discharge emission spectroscopic analysis is in a range of 0.75 mass % or less in a region from a surface of the steel sheet to a thickness of 500 nm after being acid-pickled. | 12-11-2014 |
20150024237 | STEEL SHEET FOR HOT STAMPING, METHOD FOR PRODUCTION THEREOF, AND HOT STAMPING STEEL MATERIAL - A hot stamping steel material, which secures good hydrogen embrittlement resistance even when the steel sheet after hot stamping is subjected to processing leading to remaining of stress, such as piercing and which is easily practicable, wherein the steel sheet has the chemical composition of: C: 0.18 to 0.26%; Si: more than 0.02% and not more than 0.05%; Mn: 1.0 to 1.5%; P: 0.03% or less; S: 0.02% or less; Al: 0.001 to 0.5%; N: 0.1% or less; O: 0.001 to 0.02%; Cr: 0 to 2.0%; Mo: 0 to 1.0%; V: 0 to 0.5%; W: 0 to 0.5%; Ni: 0 to 5.0%; B: 0 to 0.01%; Ti: 0 to 0.5%; Nb: 0 to 0.5%; Cu: 0 to 1.0%; and balance: Fe and impurities, in terms of % by mass, the concentration of a Mn-containing inclusion is not less than 0.010% by mass and less than 0.25% by mass, and the number ratio of a Mn oxide to the inclusion having a maximum length of 1.0 to 4.0 μm is 10.0% or more. | 01-22-2015 |
20150218708 | HOT ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME - A hot rolled steel sheet consisting of, in mass %, C: 0.05% to 0.15%, Si: 0% to 0.2%, Al: 0.5% to 3.0%, Mn: 1.2% to 2.5%, P: 0.1% or less, S: 0.01% or less, N: 0.007% or less, Ti: 0.03% to 0.10%, Nb: 0.008% to 0.06%, V: 0% to 0.12%, one or more of Cr, Cu, Ni, and Mo: 0% to 2.0% in total, B: 0% to 0.005%, one or more of Ca, Mg, La, and Ce: 0% to 0.01% in total, total amount of Si and Al: 0.8×(Mn−1)% or more, total amount of Ti and Nb: 0.04% to 0.14%, and the balance: Fe and impurities. In a structure of steel, a total area ratio of martensite and retained austenite is 3% to 20%, an area ratio of ferrite is 50% to 96%, and an area ratio of pearlite is 3% or less. In a superficial layer part, the thickness in a sheet thickness direction of a region in which a network-like oxide is present is less than 0.5 μm, and a maximum tensile strength is 720 MPa or more. | 08-06-2015 |
20160024610 | HIGH STRENGTH STEEL SHEET EXCELLENT IN DELAYED FRACTURE RESISTANCE AND LOW TEMPERATURE TOUGHNESS, AND HIGH STRENGTH MEMBER MANUFACTURED USING THE SAME - A high strength steel sheet containing chemical components of, in mass %, C: 0.20 to 0.42%, Si: 0.06 to 0.5%, Mn: 0.2 to 2.2%, Cr: 0.1 to 2.5%, B: 0.0005 to 0.01%, O: 0.0020 to 0.020%, Al: 0.001 to 0.03%, Ti: 0.001 to 0.05%, N: 0.1% or less, P: 0.03% or less, S: 0.02% or less, and the balance: Fe and inevitable impurities. In steel, 5×10 | 01-28-2016 |
Patent application number | Description | Published |
20090023016 | Perpendicular magnetic recording medium - Embodiments of the present invention help to provide a perpendicular magnetic recording medium in which a perpendicular magnetic recording layer is formed via a soft magnetic under-layer on a disk substrate, whereby the error rate is reduced and high density recording is enabled. According to one embodiment, the disk substrate is textured so that the center line average height (Ra) is from 0.05 nm to 0.2 nm, in which the soft magnetic under-layer is amorphous and has a film thickness from 2.5 nm to 10 nm, and the magnetic field for saturation (Hs) of the perpendicular magnetic recording layer is 7 kOe or less. | 01-22-2009 |
20090162573 | METHODS AND APPARATUS TO FABRICATE SOFT MAGNETIC FILM WITH PREFERRED UNIAXIAL ANISOTROPY FOR PERPENDICULAR RECORDING - Soft magnetic film fabricated with preferred uniaxial anisotropy for perpendicular recording. One type of cathode design has a field direction that is parallel to the direction of the Hex of the second SUL with a magnetically-pinned first SUL. In addition, SUL structures having low AP exchange energy also are disclosed. The SUL structure combines the cathode field direction of the SUL | 06-25-2009 |
20090257144 | Perpendicular magnetic recording medium and magnetic storage device using the same - Embodiments of the present invention provide a perpendicular magnetic recording medium that reduces the noise of granular recording layers, obtains sufficient overwrite characteristic that suppresses an increase in the magnetic cluster size, and allows high-density recording. According to one embodiment, a perpendicular magnetic recording medium comprising substrate having thereon at least soft magnetic layer, nonmagnetic intermediate layer, a perpendicular recording layer and protective layer formed in that order. The perpendicular recording layer consists of three or more layers of first recording layer, a second recording layer, and a third recording layer from the side nearer to the substrate. The first recording layer and the second recording layer have a granular structure comprising a grain boundary of an oxide surrounding ferromagnetic crystal grains containing Co and Pt, and the third recording layer has a non-granular structure mainly comprising Co and not containing an oxide. The grain boundary of the first recording layer contains Si, Cr and oxygen, and at least one element selected from Ti, Ta and Nb, and the grain boundary of the second recording layer contains Cr and oxygen, or contains Cr and oxygen and at least one element selected from Si, W and V. | 10-15-2009 |
20110032638 | PERPENDICULAR MAGNETIC RECORDING MEDIUM, MANUFACTURING PROCESS OF THE SAME, AND MAGNETIC RECORDING/REPRODUCING APPARATUS USING THE SAME - Embodiments of the invention provide a perpendicular magnetic recording medium improved for fly ability, high in read signal quality, and capable of suppressing magnetic decay of recorded magnetization to be caused by stray fields. In one embodiment, a perpendicular recording layer is formed over a substrate with a soft magnetic underlayer therebetween, then an amorphous or nano-crystalline layer is formed between the substrate and the soft magnetic underlayer. The soft magnetic underlayer includes first and second amorphous soft magnetic layers, as well as a nonmagnetic layer formed between those first and second amorphous soft magnetic layers. The first and second amorphous soft magnetic layers are given uniaxial anisotropy in the radial direction of the substrate respectively and coupled with each other antiferromagnetically. | 02-10-2011 |
20110151144 | PERPENDICULAR MAGNETIC RECORDING MEDIUM, MANUFACTURING PROCESS OF THE SAME, AND MAGNETIC RECORDING/REPRODUCING APPARATUS USING THE SAME - Embodiments of the invention provide a perpendicular magnetic recording medium improved for fly ability, high in read signal quality, and capable of suppressing magnetic decay of recorded magnetization to be caused by stray fields. In one embodiment, a perpendicular recording layer is formed over a substrate with a soft magnetic underlayer therebetween, then an amorphous or nano-crystalline layer is formed between the substrate and the soft magnetic underlayer. The soft magnetic underlayer includes first and second amorphous soft magnetic layers, as well as a nonmagnetic layer formed between those first and second amorphous soft magnetic layers. The first and second amorphous soft magnetic layers are given uniaxial anisotropy in the radial direction of the substrate respectively and coupled with each other antiferromagnetically. | 06-23-2011 |
20120154948 | PERPENDICULAR MAGNETIC RECORDING MEDIA HAVING LOW MEDIUM NOISE AND SYSTEMS USING THE SAME - In one embodiment, a perpendicular magnetic recording medium includes a substrate, a soft-magnetic underlayer above the substrate, a seed layer above the soft-magnetic underlayer, a first intermediate layer above the seed layer, a second intermediate layer above the first intermediate layer, a recording layer above the second intermediate layer, and a protective layer above the recording layer. The second intermediate layer includes an Ru alloy having an element selected from a group consisting of: Ti in a range from about 20 at. % to about 50 at. %, Nb in a range from about 20 at. % to about 50 at. %, Al in a range from about 20 at. % to about 40 at. %, Ta in a range from about 30 at. % to about 50 at. %, and Si in a range about 20 at. % to about 40 at. %. Other magnetic media and systems using this media are described according to more embodiments. | 06-21-2012 |
20120307395 | PERPENDICULAR MAGNETIC RECORDING MEDIUM WITH AN INVERTED Hk STRUCTURE - According to one embodiment, a perpendicular magnetic recording medium includes a first granular recording layer characterized by a magnetic anisotropy Ku | 12-06-2012 |
20130155542 | PERPENDICULAR MAGNETIC RECORDING MEDIUM WITH GRAIN BOUNDARY CONTROLLING LAYERS - In one embodiment, a perpendicular magnetic recording medium includes an oxide recording layer including an oxide and a non-oxide recording layer which does not contain an oxide positioned above the oxide recording layer. The oxide recording layer includes a region R | 06-20-2013 |
20150294679 | PERPENDICULAR MAGNETIC RECORDING MEDIUM WITH GRAIN BOUNDARY CONTROLLING LAYERS - In one embodiment, a perpendicular magnetic recording medium includes an oxide recording layer including an oxide and a non-oxide recording layer which does not contain an oxide positioned above the oxide recording layer. The oxide recording layer includes a first recording layer, a second recording layer, a third recording layer, and a fourth recording layer. Also, an oxide concentration of the first recording layer is greater than an oxide concentration of the second recording layer, an oxide concentration of the third recording layer is greater than an oxide concentration of the fourth recording layer, and the oxide concentration of the third recording layer is greater than the oxide concentration of the second recording layer. | 10-15-2015 |
20160035380 | SOFT MAGNETIC UNDERLAYER HAVING HIGH TEMPERATURE ROBUSTNESS FOR HIGH AREAL DENSITY PERPENDICULAR RECORDING MEDIA - In one embodiment, a perpendicular magnetic recording medium includes: a substrate; and a soft magnetic underlayer structure positioned above the substrate, where the soft magnetic underlayer includes: a coupling layer; a first soft underlayer positioned above the coupling layer; and a second soft underlayer positioned below the coupling layer, where a difference between a magnetic flux density of the soft magnetic underlayer structure at 25° C. and a magnetic flux density of the soft underlayer structure at 85° C. is less than or equal to about 10% of the magnetic flux density of the soft magnetic underlayer structure at 25° C. | 02-04-2016 |
20160035381 | PERPENDICULAR RECORDING MEDIA HAVING HIGH-TEMPERATURE ROBUSTNESS - A perpendicular magnetic recording medium with an grain isolation layer is disclosed. In one embodiment, a perpendicular magnetic recording medium comprises a substrate, a soft non-magnetic under layer formed over the substrate, a granular layer comprising an exchange control layer and a recording layer formed over the soft non-magnetic under layer, wherein a difference between a level at 25 deg C. and a level at 85 deg C. of a slope at a coercivity of a magnetization process curve having saturation magnetization normalized at 1 is obtained when a magnetic field is applied perpendicular to said medium, is 10% or less. | 02-04-2016 |
Patent application number | Description | Published |
20080226942 | Method of Manufacturing Organic Electroluminescence Element and Manaufacturing Apparatus - An objective is to provide a method of manufacturing an organic electroluminescence element possessing a thin film exhibiting relatively low film-strength formed via a continuous wet coating process. Disclosed is a method of manufacturing an organic electroluminescence element possessing a substrate film and provided thereon at least an organic layer placed between a pair of facing electrodes, possessing a light emitting layer containing an organic light emission material; possessing the steps of forming the organic layer on a first electrode provided on the substrate film by a continuous wet coating method; and cutting the substrate film with an upper cutting blade and a lower cutting blade, wherein the lower blade faces the substrate film, the upper blade has a blade edge angle of 30-60°, and the lower blade has a blade edge angle of 80-90 °. | 09-18-2008 |
20090267507 | Process for Producing Organic Electroluminescent Element and Organic Electroluminescent Display Device - This invention provides a process for producing an organic EL element that, in forming, by a coating method, an organic EL element comprising a substrate bearing a plurality of organic EL elements each comprising at least a first electrode, one or more organic compound layers, a second electrode, and a sealing layer, can easily form an external connection terminal forming part for external connection terminal formation and can realize high production efficiency and stable performance quality. The process for producing an organic EL element is a process for producing an organic EL element comprising a substrate bearing at least one organic EL element comprising at least a first electrode (an anode layer), at least one organic compound layer, a second electrode (a cathode layer), and a sealing layer and is characterized by comprising a masking member application step of laminating a masking member having an adhesive strength of 1 N/25 mm to 10 N/25 mm onto the organic compound layer formation prohibition region on the substrate, an organic compound layer formation step of forming the organic compound layer on the substrate, and a masking member separation step of separating the masking member. | 10-29-2009 |
20100229791 | COATING APPARATUS - A coating apparatus for conducting coating by discharging liquid droplets onto a substrate, is provided with a discharging head having an external terminal to receive control signals and a plurality of nozzles to discharge liquid droplets in response to the control signals; a drive control board to output the control signals to the discharging head; a cable to transmit the control signals from the drive control board to the discharging head; a relay board having a first terminal to form a first joint section to joint with the external terminal of the discharging head and a second terminal to form a second joint section to joint with the cable; and an intercepting member to intercept contact between the first joint section and outside air and to intercept contact between the second joint section and outside air. | 09-16-2010 |