Abstract: The electrical device connector is characterized by including: a first central conductor in which a first concave portion is provided; a first insulation layer provided around the first central conductor; a second central conductor in which a second concave portion is provided; a second insulation layer provided around the second central conductor; a flexible insulator provided between the first insulation layer and the second insulation layer; and a barrel-shaped contact provided in a space portion formed by the first concave portion and the second concave portion, wherein the barrel-shaped contact is configured to include: a center electrode; a plurality of contact pieces including one contact surface coming in contact with an inner surface of the first concave portion and the other contact surface coming in contact with an inner surface of the second concave portion, across an intermediate portion as a boundary; and contact load springs provided between the contact piece and the center electrode.

Abstract: The electrical device connector is characterized by including: a first central conductor in which a first concave portion is provided; a first insulation layer provided around the first central conductor; a second central conductor in which a second concave portion is provided; a second insulation layer provided around the second central conductor; a flexible insulator provided between the first insulation layer and the second insulation layer; and a barrel-shaped contact provided in a space portion formed by the first concave portion and the second concave portion, wherein the barrel-shaped contact is configured to include: a center electrode; a plurality of contact pieces including one contact surface coming in contact with an inner surface of the first concave portion and the other contact surface coming in contact with an inner surface of the second concave portion, across an intermediate portion as a boundary; and contact load springs provided between the contact piece and the center electrode.

Abstract: A novel compound, 3,7,11,15-tetramethyl-2,4,6,10,14-hexadecapentaenoic acid, and a salt thereof are disclosed together with a number of different processes for the preparation of the compound. The uses of the novel compound as an agent for treating papillomata are also disclosed.

Abstract: Skin diseases with keratinization and allergic or inflammatory skin diseases are treated by orally or parenterally administering to an adult human patient from 40 mg to 4 g/day of a polyprenyl compound having the formula (I): ##STR1## in which each of n and m is 0, 1, or 2, n+m is 0, 1 or 2, A is ##STR2## and B is ##STR3## [in which R represents the hydroxyl group, a lower alkoxy group, or ##STR4## (wherein each of R.sub.1 and R.sub.

Abstract: A novel compound, 3,7,11,15-tetramethyl-2,4,6,10,14-hexadecapentaenoic acid, and a salt thereof are disclosed together with a number of different processes for the preparation of the compound. The uses of the novel compound as an anticancer agent are also disclosed.

Abstract: An anti-cancer agent which comprises a polyprenvl compound having the formula (I): ##STR1## in which each of n and m is 0, 1 or 2, n+m is 0, 1 or 2, A is ##STR2## and B is ##STR3## in which R represents the hydroxyl group, a lower alkoxy group, or ##STR4## (wherein each of R.sub.1 and R.sub.

Abstract: A conjugated polyprenylcarboxylic acid and its derivative having the formula: ##STR1## in which each of n and m is 0, 1 or 2, n+m is 1 or 2, A is ##STR2## and R is the hydroxyl group, a lower alkoxy group or ##STR3## wherein each of R.sub.1 and R.sub.2 represents the hydrogen atom, a lower alkyl group, or an aryl group; provided that R is ##STR4## if A is ##STR5## n is 1 and m is 0.

Abstract: The polyprenyl compound having the formula: ##STR1## wherein X represents a group of the formula: --CH.dbd.CH--, a group of the formula: ##STR2## or a group of the formula: ##STR3## and Y represents a group of the formula: --COOR.sup.1 in which R.sup.1 represents a hydrogen atom or a lower alkyl group or a group of the formula: ##STR4## in which R.sup.2 represents a hydrogen atom or a lower alkyl group, is new and useful as a medicine.

Abstract: A compound, 3,7,11,15-tetramethyl-2,4,6,10,14-hexadecapentaenoic acid, and a salt thereof are disclosed as a therapeutic agent for treatment of skin diseases with keratinization.