Tanazawa
Masahiro Tanazawa, Kawaguchi-Shi JP
Patent application number | Description | Published |
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20120020626 | Optical Fiber Connector - The invention improves work efficiency of assembly from that of the past, and suppresses decrease in coupling efficiency between an optical fiber and a photoelectric conversion element. | 01-26-2012 |
20130163007 | LENS ARRAY AND LENS EDGE DETECTION METHOD THEREOF - To enable detection of images of peripheral end sections of a first lens face | 06-27-2013 |
20140328558 | OPTICAL RECEPTACLE AND OPTICAL MODULE INCLUDING THE SAME - An optical receptacle disposed between a photoelectric conversion device and an optical fiber includes a light separating section for separating incident light into monitor light and fiber coupled light, which section includes a segmented reflective surface and a segmented transmitting surface. The reflective surface for reflecting light as monitor light is disposed in a segmented manner with spaces in a segmentation direction. The transmitting surface is disposed in a segmented manner in areas where the reflective surface is not disposed, so as to transmit a portion of light other than the reflected light in a direction directly oppose to the direction of the reflected light and to advance the other portion of light towards the side of an end face of the optical fiber. | 11-06-2014 |
20150020964 | LENS ARRAY FABRICATION METHOD, AND FILM CONTAINING BASE PLATE AND FILM ATTACHING INSTRUMENT EMPLOYED IN SAME - A lens array fabrication method for fabricating a lens array includes: receiving pins ( | 01-22-2015 |
20150060640 | OPTICAL RECEPTACLE AND OPTICAL MODULE PROVIDED WITH SAME - An optical receptacle includes a light dividing surface that divides light from a light-emitting element into monitor light and coupling light to be coupled with an optical transmission body using total reflection. The light dividing surface includes a first curved surface that protrudes to the side opposite to a first surface from a first virtual reference surface having a slope angle of angle α[°] in relation to the first surface on a photoelectric conversion device side of an optical receptacle main body and a second curved surface that is connected to the first curved surface and protrudes to the side opposite to the first surface from a second virtual reference surface having a slope angle of angle β[°] in relation to the first surface, in which α and β satisfy α>β>critical angle. | 03-05-2015 |
Masahiro Tanazawa, Saitama JP
Patent application number | Description | Published |
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20150030285 | OPTICAL RECEPTACLE AND OPTICAL MODULE - An optical receptacle includes a first optical surface which receives incidence of light, a reflecting surface which reflects light along a substrate, a light separating section which separates light from the reflecting surface into monitor light and signal light, a second optical surface which emits the monitor light toward a light receiving element, and a third optical surface which emits the signal light. The light separating section includes a plurality of separating units each including a vertical splitting transmissive surface, an inclining splitting reflecting surface and a parallel splitting stepped surface. In the light separating section, 4 to 6 separating units are disposed within a region where light reflected at the reflecting surface is incident. A height of a boundary between the splitting transmissive surface and the splitting stepped surface with respect to a virtual plane including the splitting reflecting surface is 13 to 21 μm. | 01-29-2015 |
Yusuke Tanazawa, Gunma JP
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20100275554 | METHOD OF PACKAGING RECORD ROLLS OF COVER TAPE AND PACKAGE - The method for packaging together a plurality of record rolls of cover tape according to the present invention comprises wrapping a stack obtained by roughly coaxially stacking said record rolls in a heat-shrink film; and heat-shrinking said heat-shrink film, so that a pressure of at least 0.8 mN/mm | 11-04-2010 |
20110212324 | COVER TAPE - Provided is a cover tape that has a small range of stripping strength and generates little static electricity when stripped at a high speed. The cover tape according to the present invention comprises at least a substrate layer, an intermediate layer, a charge transfer layer, and a heat seal layer, characterized in that (A) the charge transfer layer containing an acid-modified polyolefin resin and a conductive agent, and (B) the heat seal layer containing (a) a thermoplastic resin component composed of an acrylic resin, and (b) a styrene-conjugated diene copolymer or a hydrogenated resin thereof, the mass ratio of the two components ((a)/(b)) being 20/80 to 80/20. | 09-01-2011 |
Yusuke Tanazawa, Isesaki-Shi JP
Patent application number | Description | Published |
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20140037940 | COVER FILM - A cover film including, at least, (A) a substrate layer, (B) an intermediate layer, (C) a release layer and (D) a heat seal layer is provided. The release layer (C) includes a resin composition which includes (a) a styrene-based resin composition and (b) an ethylene-α-olefin random copolymer, with the content of the copolymer (b) in the release layer being 20 to 50 mass %, and which has a Vicat softening temperature of 55 to 80° C., while the heat seal layer (D) includes an acrylic resin having a glass transition temperature of 55 to 80° C. By the cover film, a carrier tape of polystyrene or the like can be so heat-sealed even in a short time as to achieve sufficient peel strength. Further, the resulting heat-sealed carrier tape exhibits little variation in peel strength, so that when peeling, few components fly out of the carrier tape. | 02-06-2014 |
20140134365 | COVER TAPE - The present invention relates to a cover tape and to an electronic component package that uses the cover tape, the cover tape including at least a substrate layer, a heat seal layer, and an antistatic layer, the antistatic layer containing (A) an ionic liquid including a cyclic quaternary nitrogen-containing cation, (B) a quaternary ammonium salt, and (C) a polyalkylene glycol being formed on a surface toward the heat seal layer, and an anion constituting the (A) ionic liquid including a cyclic quaternary nitrogen-containing cation and the (B) quaternary ammonium salt being one or more anions selected from the group consisting of carboxylic acids, sulfuric acid esters, phosphoric acid esters, sulfonic acids, and phosphoric acids. | 05-15-2014 |