Moriyasu
Moriyasu Kanai, Saitama JP
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20080285966 | OPTICAL SYSTEM OF A FOCUS DETECTION APPARATUS - An optical system of a focus detection apparatus includes a condenser lens positioned behind an expected focal plane of a photographing lens; an auxiliary lens group positioned behind the condenser lens to be coaxial therewith; and a pair of separator lenses positioned behind the auxiliary lens group in close vicinity thereof and integrally molded from resin. An object image formed on the expected focal plane is divided into two images by the pair of separator lenses to be reformed on a pair of areas on a sensor, respectively, and the auxiliary lens group includes a negative lens element made of resin, and a positive lens element made of glass. | 11-20-2008 |
20110013898 | FOCUS DETECTION DEVICE - A focus detection device, which detects a defocus amount based on a phase difference between a pair of object images that are obtained by pupil division and projected onto a pair of areas on a line sensor, includes a parallel line sensor having two line sensor arrays arranged adjacently in parallel, and a correction calculator which corrects the defocus amount according to a phase difference between output signals of the two line sensor arrays of the parallel line sensor. | 01-20-2011 |
20110080562 | MULTIFOCAL INTRAOCULAR LENS SIMULATOR AND METHOD OF SIMULATING MULTIFOCAL INTRAOCULAR LENS - A multifocal intraocular lens simulator includes an optical system enabling an object to be observed therethrough, and a test lens holder which holds a prescribed test intraocular lens. The intraocular lens holder is installed at a position optically conjugate with a position at which an eye of an observer is to be placed. The present invention also teaches a method of simulating a multifocal intraocular lens. | 04-07-2011 |
20150116823 | FINDER OPTICAL SYSTEM - A finder optical system includes an image inverter optical member and an eyepiece lens system. The eyepiece lens system includes a negative first lens element, a positive biconvex second lens element, and a meniscus third lens element having a concave surface on the eyepoint side, in that order from the object side. A diopter adjustment operation is performed by moving the second lens element along the optical axis. Conditions (1) and (2) are satisfied: | 04-30-2015 |
Moriyasu Nonaka, Fukuoka-Shi JP
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20100089801 | PROCESS FOR PRODUCTION OF LOW-SPECIFIC-GRAVITY HOLLOW PARTICLES - To enable high-added-value low-specific-gravity hollow particles to be efficiently mass-produced by using, as a raw material, coal ash discharged when coal is combusted; enriching low-specific-gravity hollow particles contained in the raw material coal ash by classification to reduce the weight of the coal ash to be subjected to wet specific gravity separation; subjecting the raw material coal ash which have been reduced in weight to wet specific gravity separation to obtain low-specific-gravity components; and dehydrating and drying the low-specific-gravity components. | 04-15-2010 |
Moriyasu Shirayanagi, Tokyo JP
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20100245763 | Progressive Power Lens And Method Of Designing The Same - A progressive power lens that prevents degradation in optical characteristics invited by deviation of a pantoscopic angle from the standard value. The lens includes an outer refractive surface and an inner refractive surface, at least one of which is a progressive surface. Because the amount and direction of aberrations generated in distance and near portions are different, correction is given to either or both of the surface powers of the outer and inner surfaces of the lens such that the distance and near portions are differently corrected. | 09-30-2010 |
Moriyasu Yamaguchi, Tokyo JP
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20160040263 | RAIL MANUFACTURING METHOD AND MANUFACTURING EQUIPMENT - Rail manufacturing method performs, on at least a head of the rail that is hot after hot-rolled at an austenite region temperature or higher or after heated to the austenite region temperature or higher, forced cooling: for 10 seconds from start of the forced cooling so that a cooling rate at a surface of the head becomes 1° C./s to 20° C./s; during a period after a lapse of 10 seconds from the start until heat generation during transformation begins at the surface so that the cooling rate becomes 1° C./s to 5° C./s; during transformation from beginning to end of the heat generation during transformation so that the cooling rate becomes lower than 1° C./s or a temperature-rising rate becomes 5° C./s or lower; and during a period after the end of the heat generation during transformation until temperature at the surface becomes 450° C. or lower so that the cooling rate becomes 1° C./s to 20° C./s. | 02-11-2016 |
Moriyasu Yamaguchi, Chiyoda-Ku, Tokyo JP
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20160083820 | PEARLITIC RAIL AND METHOD FOR MANUFACTURING PEARLITIC RAIL - A pearlitic rail includes a composition including in % by mass: 0.70% to 0.90% of C; 0.1% to 1.5% of Si; 0.01% to 1.5% of Mn; 0.001% to 0.035% of P; 0.0005% to 0.030% of S; 0.1% to 2.0% of Cr, remainder of the composition consisting of Fe and inevitable impurities. Surface hardness of a rail top is not less than HB 430, and hardness at a depth of 25 mm from a surface of the rail top is not less than HB 410. | 03-24-2016 |