Dai Nippon Printing Co., Ltd.

Toyo Glass Company, Limited

Dai Nippon Insatsu Kabushiki Kaisha

Toyo Seikan Group Holdings, Ltd.

Panasonic Intellectual Property Management Co., Ltd.

Ube Exsymo Co., Ltd.

Taro Suzuki

Hiroyoshi Matsumura

Daisuke Fukui

Shigeki Umise

Munenori Ieshige

Masamitsu Suzuki

Takenori Omata

Toru Achiwa

Katsuyuki Oshima

Kyoichi Yamamoto

Naofumi Maruyama

Masahiro Fujita

Toshihiro Takagi

Tatsuya Kita

Masayasu Yamazaki

Makoto Totani

Kouji Kondoh

Eijirou Miyagawa

Hirotoshi Kizumoto

Daisuke Kusaba

Naoyuki Mitsuyasu

Yoji Orimo

Yuri Tamura

Minoru Takahashi

Eisuke Tachibana

Junya Kasahara

Takao Arima

Gou Endo

A flexible laminated sheet manufacturing method includes thermocompression-bonding an insulation film formed of a liquid crystal polymer onto a metal foil between endless belts to form a flexible laminated sheet. The thermocompression bonding includes heating the flexible laminated sheet so that the maximum temperature of the sheet is in the range from a temperature that is 45° C. lower than the melting point of the liquid crystal polymer to a temperature that is 5° C. lower than the melting point. The thermocompression bonding also includes slowly cooling the flexible laminated sheet so that an exit temperature, which is a temperature of the sheet when transferred out of the endless belts, is in the range from a temperature that is 235° C. lower than the melting point of the liquid crystal polymer to a temperature that is 100° C. lower than the melting point.

Flexible laminated board and multilayer circuit board

A connector for optical fibers with lenses includes a ferrule to which an optical fiber with a lens is mounted and which has an end face inclined relative to a central axis, and a coupling member (sleeve) which coaxially couples a pair of the ferrules by making the ferrules to face each other in a non-contact state such that the end faces are parallel to each other. The ferrule has one or a plurality of holes which are parallel to the central axis at positions decentered from the central axis, the optical fiber with the lens being disposed in the hole, and the optical fibers with the lenses mounted to the pair of the ferrules have lens end faces which are inclined along the end faces of the ferrules so as to be optically coupled to each other.

Connector for optical fibers with lenses

A video output apparatus includes an operation device that outputs an operation signal according to an operation, an operation signal processor that receives the operation signal and executes a process, and a storage that stores a plurality of programs and an association between the operation signal and any of the plurality of programs. The operation device includes a definition operation part to which a function achieved by any of the plurality of programs can be allocated, and the plurality of programs includes a function allocation setting program for outputting an operation image for allocating the function to the definition operation part. The storage stores, as an initial association, an association between an operation signal due to an operation on the definition operation part and the function allocation setting program. Upon receipt of the operation signal output from the operation device due to the operation on the definition operation part, the operation signal processor executes the function allocation setting program based on the initial association and outputs the operation image.

Video output apparatus and video output method

In an optical coupler in which optical fibers with GRIN lenses, each having an optical fiber and a GRIN lens joined coaxially, are disposed to face each other coaxially, with a preset inter-lens distance WD being provided, and to couple transmission light of one of the optical fibers with GRIN lenses to the other one of the optical fibers with GRIN lens, an intermediate position of the inter-lens distance WD is set to match a beam waist position of light with a shortest wavelength &#x3bb;out of the transmission light, and a lens length z along an optical axis direction of the GRIN lens is set in accordance with a bottom of a coupling loss due to a distance-shift D of a beam waist position of light with a wavelength &#x3bb;different from the &#x3bb;out of the transmission light.

Optical coupler and optical coupling method of optical fiber with GRIN lens

A measurement end of an optical fiber is passed through a through hole of a holder. While the optical fiber is being rotated by using the through hole as a guide, output light from the measurement end is received by light receiving means. Coordinates of at least three points on a locus circle of the output light are measured to calculate a size of the locus circle. On the basis of the calculated size, the exit angle of the optical fiber is measured. The through hole of the holder has a small-diameter portion on a front side and a large-diameter portion on a rear side. An inside diameter of the small-diameter portion is 0.1 &#x3bc;m to 1.0 &#x3bc;m larger than a diameter of a bare fiber, and an inside diameter of the large-diameter portion is larger than a diameter of a sheathed fiber.

Method and apparatus for measuring exit angle of optical fiber

A method for manufacturing a GRIN lens includes the steps of forming a wet gel provided with a concentration distribution having a different concentration of a refractive index distribution imparting metal that differs in concentration in a radial direction, drying the wet gel to form a dry gel having a bulk specific gravity &#x3c1; (g/cm), sintering the dry gel to form a GRIN lens base material and stretching the GRIN lens base material while heating. The method is characterized in that, in the step of sintering the dry gel, partial pressures of oxygen during sintering at 800&#xb0; C. or higher are 10Pa or lower and also the relation between a rate of temperature increase v (&#xb0; C./hr) and a bulk density &#x3c1; of the dry gel during sintering at 1,000 to 1,150&#xb0; C. is defined by v&#x2266;10*EXP (&#x2212;&#x3c1;). As a result of this, the GRIN lens, which has a large numerical aperture and a small diameter, can stably and easily be manufactured.

Method for manufacturing GRIN lens

An optical fiber coupling part that reduces the difficulty in adjusting cores, minimizes coupling loss, and prevents optical characteristics from deteriorating. An optical fiber is fused to one end of a GRIN lens which includes a quartz glass containing one or more refractive index regulating substances selected from SbO, TaO, TiOor ZrO. Optical characteristics are not deteriorated because an adhesive is not used, and self-alignment effects facilitate adjustment of the cores of the GRIN lens and the optical fiber. Furthemore, coupling loss can be minimized by setting a refractive index distribution constant g of the GRIN lens within an appropriate range.

Optical fiber coupling part and manufacturing method thereof

A fiber optic collimator system, a fiber optic collimator array, and a fiber optic collimator array system, which can reduce difficulty in an alignment process, minimize a coupling loss, and prevent the optical characteristics from deteriorating. An optical fiber is fused to one end of a GRIN lens made of quartz glass containing one or more selected from SbO, TaO, TiOand ZrOas a refractive index regulating substance, to form an optical fiber with a GRIN lens. Since an adhesive is not used, the core alignment of the GRIN lens and the optical fiber can be facilitated by a self alignment effect without deteriorating the optical characteristics. Moreover, the coupling loss is remarkably reduced by appropriately setting a refractive index distribution constant g of the GRIN lens. By fabricating the fiber optic collimator system, the fiber optic collimator array, the fiber optic collimator array system using the optical fiber with a GRIN lens can reduce the difficulty in the core alignment process, minimize the coupling loss, and prevent the optical characteristics from deteriorating.

Fiber optic collimator system, fiber optic collimator array, and manufacturing method of the fiber optic collimator system and fiber optic collimator array system

An optical fiber coupling part capable of reducing coupling loss while maintaining a large operating distance, and having a good module assembling property. AT least one GRIN lens having numerical aperture NA that is larger than numerical aperture NAs of a light-emitting source (such as a semiconductor laser) is fusion-spliced with one end of the optical fiber. All lights emitted from the light-emitting source can enter the GRIN lens, and the loss of the light can thereby be reduced. In addition, a second GRIN lens having numerical aperture NAis fusion-spliced with one end of the optical fiber having numerical aperture NA, and further a first GRIN lens having numerical aperture NA, which is larger than numerical aperture NA, is fusion-spliced with the other end of the second GRIN lens. Thereby, the light emitted from the light-emitting source can efficiently enter the optical fiber, and loss of the light can thereby be reduced. In this case, the formula expressed by NA&#x2266;NA&#x3c;NA&#x2266;NAis desirable.

Optical fiber coupling part

There is provided a thermal transfer image-receiving sheet which has none of the offset of an antistatic agent, the transfer of the antistatic agent onto a carrier roll of a thermal printer or the like, a lowering in whiteness, glossiness, and sensitivity in printing of the thermal transfer image-receiving sheet, and a remarkable lowering in coating strength under high-humidity environmental conditions and thus can realize stable and excellent antistatic properties. The thermal transfer image-receiving sheet comprises a substrate sheet and a dye-receptive layer provided on at least one side of the substrate sheet. An electrically conductive layer is provided as at least one layer between the substrate sheet and the receptive layer, or as at least one layer on the substrate sheet in its side remote from the receptive layer. The electrically conductive layer comprises electrically conductive synthetic phyllosilicate. By virtue of the incorporation of the electrically conductive synthetic phyllosilicate in the electrically conductive layer, the electrically conductive layer has good adhesion to the substrate sheet and other layers and has high glossiness, and the thermal transfer image-receiving sheet is free from a change in physical properties such as coating strength upon a change in environmental conditions and has excellent antistatic properties.

Thermal transfer image-receiving sheet

It is an object of the invention to provide a thermal transfer image receiving sheet which can enhance sensitivity by low heat conductivity and can be easily manufactured at a low cost compared with the lamination of a foaming film. In a thermal transfer image receiving sheetwherein a thermal insulation layerand a dye receiving layerare formed on a base material sheet, the thermal insulation layeris formed by extrusion-molding a resin containing at least one of a foaming agent and hollow bodies. The resin extruded at the time of forming the thermal insulation layeris inserted between the base material sheetand the base material film, and the base material sheetand the base material filmare bonded to each other via the thermal insulation layer. The dye receiving layeris formed outside of the base material film

Thermal transfer image receiving sheet and method for manufacturing the same

The present invention provides a thermal transfer image receiving sheet having a good productivity, capable of inexpensively obtaining an image with high density and high resolution. A dye receiving layer is provided on one surface side of a base material film, and a porous layer with hollow particles bonded by a binder resin provided on the other surface side, respectively. The porous layer is attached with a base material via an adhesive layer.

The present invention relates to a receiving-layer-forming polyester resin for use in a thermal-transfer image-receiving sheet, comprising:

Receiving-layer-forming resin for use in thermal-transfer image-receiving sheet and thermal-transfer image-receiving sheet using such a resin

Disclosed are a thermally transferable image protective sheet and a method for protective layer formation that can provide a protective layer which can protect an image of a record produced by a nonsilver photographic color hard copy recording method, can impart lightfastness and other properties to the record, and can realize a record having a glossy impression comparable to silver salt photographs. The thermally transferable image protective sheet comprises a support and a thermally transferable resin layer having a single-layer or multilayer structure stacked on the support so as to be separable from the support. The thermally transferable image protective sheet has been constructed so that, when the thermally transferable image protective sheet is put on top of a print so as for the thermally transferable resin layer to be brought into contact with an image portion in the print and the thermally transferable resin layer is thermally transferred to cover at least the image portion of the print followed by the separation of the support from the thermally transferable image protective sheet to form a thermally transferred resin layer on the surface of the print, the surface of the thermally transferred resin layer on the print has a specular glossiness of not less than 60% as measured at an angle of incidence of 20 degrees according to JIS (Japanese Industrial Standards) Z 8741.

Thermally transferable image protective sheet, method for protective layer formation, and record produced by said method

To provide a curl straightening method for image receiving paper for sublimation dye transfer, which is capable of realizing a smaller roll core diameter of the roll paper. The curl of an image receiving paperfor sublimation dye transfer having stiffness from 500 to 2,500 mg in a direction parallel to the printing direction, which is measured according to JIS L1085, JIS L1096, is straightened by allowing the image receiving paperto pass through gapsof a guidethat bends the image receiving paperin a reverse curling direction.

Growing community of inventors

Tokyo, Japan

Taro Suzuki