Abstract: An optical network system includes an optical line terminal, an optical splitter that is connected to the optical line terminal via one first optical fiber, and a plurality of optical network units that are connected to the optical splitter via respective second optical fibers. The plurality of optical network units communicate with the optical line terminal using an optical signal of a working wavelength uniquely assigned to each of them. The optical line terminal communicates with an optical network unit that is connected to the optical splitter using an optical signal of a working wavelength and an optical signal of a spare wavelength that is common to a plurality of optical networks.

Abstract: An optical network system includes an optical line terminal, an optical splitter that is connected to the optical line terminal via one first optical fiber, and a plurality of optical network units that are connected to the optical splitter via respective second optical fibers. The plurality of optical network units communicate with the optical line terminal using an optical signal of a working wavelength uniquely assigned to each of them. The optical line terminal communicates with an optical network unit that is connected to the optical splitter using an optical signal of a working wavelength and an optical signal of a spare wavelength that is common to a plurality of optical networks.

Abstract: A ring for preventing a prolapse of the uterus and the urinary bladder has an annular part and a flexible curved rod-shaped part whose one end and other end are so formed as to be connected to the annular part and whose intermediate portion interposed between the one end and the other end is so formed as to be disposed over a central region of an annular plane formed with the annular part The annular part has an open portion formed by a partial absence thereof.

Abstract: A ring for preventing a prolapse of the uterus and the urinary bladder has an annular part and a flexible curved rod-shaped part whose one end and other end are so formed as to be connected to the annular part and whose intermediate portion interposed between the one end and the other end is so formed as to be disposed over a central region of an annular plane formed with the annular part The annular part has an open portion formed by a partial absence thereof.

Abstract: An appliance for collecting a slight amount of a humor includes a sheath, a humor collection member being slidably inserted into the sheath and having a humor collection part that is formed at a front end thereof and can be cut, and a cylindrical member accommodates a cut piece of the humor collection part which has collected a humor, and a humor collection container installed on the cylindrical member and collecting the humor discharged from the cut piece of the humor collection part by a centrifugal operation with the humor collection container installed on the cylindrical member.

Abstract: An appliance for collecting a slight amount of a humor includes a sheath, a humor collection member being slidably inserted into the sheath and having a humor collection part that is formed at a front end thereof and can be cut, and a cylindrical member accommodates a cut piece of the humor collection part which has collected a humor, and a humor collection container installed on the cylindrical member and collecting the humor discharged from the cut piece of the humor collection part by a centrifugal operation with the humor collection container installed on the cylindrical member.

Abstract: An appliance for collecting a slight amount of a humor includes a sheath, a humor collection member being slidably inserted into the sheath and having a humor collection part that is formed at a front end thereof and can be cut, and a cylindrical member accommodates a cut piece of the humor collection part which has collected a humor, and a humor collection container installed on the cylindrical member and collecting the humor discharged from the cut piece of the humor collection part by a centrifugal operation with the humor collection container installed on the cylindrical member.

Abstract: An appliance for collecting a slight amount of a humor includes a sheath, a humor collection member being slidably inserted into the sheath and having a humor collection part that is formed at a front end thereof and can be cut, and a cylindrical member accommodates a cut piece of the humor collection part which has collected a humor, and a humor collection container installed on the cylindrical member and collecting the humor discharged from the cut piece of the humor collection part by a centrifugal operation with the humor collection container installed on the cylindrical member.

Abstract: A cutting device cuts a flat tube in such a manner that a locus connecting each point where a blade tip of a blade portion of the cutting device is firstly introduced into the flat tube passes through a base portion of a frontmost side protrusion portion. Therefore, the bending moment generated due to a cutting force of the cutting device is decreased to prevent defective cutting.

Abstract: A transparent heating instrument for use in a microscope has a transparent heat-generating plate and an annular housing accommodating the transparent heat-generating plate. The transparent heat-generating plate has a transparent plate, a transparent heat-generating conductive thin coat formed on one surface of the transparent plate, a pair of heat-generating electrodes in contact with the transparent heat-generating conductive thin coat and opposed to each other; and a transparent thin hard coat (transparent thin hard coat) covering the transparent heat-generating conductive thin coat and having substantially insulating property.

Abstract: A transparent heating plate and transparent heating device for examination of specimens under a microscope can heat the entire transparent conductive film between electrodes of the transparent heating plate with a small difference in temperature. The transparent heating plate can also heat the vicinity of the center of the transparent heating plate used for examination at substantially a uniform temperature regardless of the shape of the transparent heating plate or the structure of the transparent heating plate. The transparent heating plate may also prevent electromagnetic waves generated from the transparent heating plate from flowing into objects put on the outer side of the transparent heating plate. A further embodiment of a transparent heating plate prevents scattering of broken pieces of glass should the transparent heating plate break.

Abstract: A method for manufacturing long products from a lengthy plate-like material having an appreciably small thickness by press working is disclosed in which the plate-like material is fed in succession into the press working stages of a single press unit carrying out a centering process, a bending process, a coining process, a sizing process, perforating process, and a final shearing process. The material having passed these press working processes is formed into long products having various required lengths and various required number of perforations formed therein. The spacing of the perforations are kept constant irrespective of changes in the thickness and width of the material.