Abstract: An inductance element includes a magnetic core and a coil having a portion embedded in the magnetic core. This portion includes a wound portion formed by winging a wire-shaped coil material including a wire-shaped conductive material and an insulating coating. The insulating coating includes a thin-walled portion reduced in thickness. A biting ratio R is defined by formula: R=ds/B, which is from 0.4 to 0.85 inclusive, where B is the average thickness of inter-coil insulating coatings, and ds is an upper biting limit obtained by measuring a biting depth, approximating a frequency distribution of the results by a normal distribution, and computing, as the upper biting limit, the sum of the mean da of the normal distribution and the product of 3.99 and the standard deviation ?. The biting depth is obtained by subtracting, from the average thickness B, the thickness of the thin-walled portion.

Abstract: An inductance element includes a magnetic core and a coil having a portion embedded in the magnetic core. This portion includes a wound portion formed by winging a wire-shaped coil material including a wire-shaped conductive material and an insulating coating. The insulating coating includes a thin-walled portion reduced in thickness. A biting ratio R is defined by formula: R=ds/B, which is from 0.4 to 0.85 inclusive, where B is the average thickness of inter-coil insulating coatings, and ds is an upper biting limit obtained by measuring a biting depth, approximating a frequency distribution of the results by a normal distribution, and computing, as the upper biting limit, the sum of the mean da of the normal distribution and the product of 3.99 and the standard deviation ?. The biting depth is obtained by subtracting, from the average thickness B, the thickness of the thin-walled portion.

Abstract: When a plug is to be fitted to a first connector from one side and a plug is to be fitted to a second connector from the other side of an optical coupling device, the first connector and the second connector shift in an X direction to ease stresses working on an internal optical fiber. Therefore, stresses working on the optical fiber can be eased without having to extend a length of the internal fiber, and accordingly it is made possible to reduce an overall size of the optical coupling device.

Abstract: When a plug is to be fitted to a first connector from one side and a plug is to be fitted to a second connector from the other side of an optical coupling device, the first connector and the second connector shift in an X direction to ease stresses working on an internal optical fiber. Therefore, stresses working on the optical fiber can be eased without having to extend a length of the internal fiber, and accordingly it is made possible to reduce an overall size of the optical coupling device.

Abstract: This invention relates to blends of polyarylene sulfides, maleic imides and dolomite. The blends are distinguished by good mechanical properties and are particularly suitable for the production of, for example, metallizable moldings.

Abstract: A silicone-epoxy resin composition comprising(A) 100 parts by weight of a curable epoxy resin,(B) 1-100 parts by weight of an epoxy resin-modified silicone resin obtained by a condensation reaction of 1-99 mole % of an epoxy resin having at least one hydroxyl group and at least one epoxy group and 1-99 mole % of an organosiloxane or organosilane compound represented by the general formula ##EQU1## wherein R.sup.1 represents a monvalent hydrocarbon group or a halogenated monovalent hydrocarbon group, R.sup.2 represents a hydrogen atom or a monovalent aliphatic hydrocarbon group, is a number ranging from 1 to 1,500; n is a number ranging from 0.9 to 3; and m is a number ranging from 0.05 to 3.1 with a proviso that the sum of m+n is not greater than 4, and(c) 1-100 parts by weight of an epoxy-modified polysiloxane having an epoxy equivalent ranging from 1,000 to 20,000, represented by the general formula ##STR1## wherein R.sup.3, R.sup.4, R.sup.5, R.sup.6, and R.sup.