Abstract: An electronic parts mount apparatus for taking out electronic parts from a parts supply section 3by a transfer head 9 and transporting and mounting the electronic parts to and on a board 2 has a board recognition camera 15 moving independently of the transfer head 9 and advancing to and retreating from the board 2 positioned on a transfer passage 1 for picking up an image of the board 2 to detect the position thereof. The image pickup step of the board 2 by the board recognition camera 15 and the parts taking out step in the parts supply section by the transfer head 9 are performed concurrently. Thus, the tact time can be shortened and the electronic parts can be mounted on the board efficiently.

Abstract: An electronic parts mount apparatus for taking out electronic parts from a parts supply section 3by a transfer head 9 and transporting and mounting the electronic parts to and on a board 2 has a board recognition camera 15 moving independently of the transfer head 9 and advancing to and retreating from the board 2 positioned on a transfer passage 1 for picking up an image of the board 2 to detect the position thereof. The image pickup step of the board 2 by the board recognition camera 15 and the parts taking out step in the parts supply section by the transfer head 9 are performed concurrently. Thus, the tact time can be shortened and the electronic parts can be mounted on the board efficiently.

Abstract: Method for taking out electronic parts from a parts supply section by a transfer head and transporting and mounting the electronic parts to and on a board positioned on a transfer passage. In an image pickup step, a board recognition camera moves independently of the transfer head and advances to and retreats from the board for picking up an image of the board to detect the position thereof in a position detecting step. The image pickup step of the board by the board recognition camera and the parts taking out step in the parts supply section by the transfer head are performed concurrently. Thus, the tact time can be shortened and the electronic parts can be mounted on the board efficiently.

Abstract: An electronic parts mount apparatus for taking out electronic parts from a parts supply section 3 by a transfer head 9 and transporting and mounting the electronic parts to and on a board 2 has a board recognition camera 15 moving independently of the transfer head 9 and advancing to and retreating from the board 2 positioned on a transfer passage 1 for picking up an image of the board 2 to detect the position thereof. The image pickup step of the board 2 by the board recognition camera 15 and the parts taking out step in the parts supply section by the transfer head 9 are performed concurrently. Thus, the tact time can be shortened and the electronic parts can be mounted on the board efficiently.

Abstract: There are irregularities in the thicknesses, longitudinal and lateral sizes of electrical components, which cause placement errors of the electrical components on substrates. Therefore, the thickness, longitudinal and lateral sizes of the electrical component is measured during feeding the electrical component to the substrate. The irregularity of the thicknesses of the electrical components can be corrected by regulating the vertical stroke of a nozzle. The temporary values of the longitudinal and lateral sizes of the electrical component are registered in advance in a computer. When the measured values fall within the allowable range of the temporary values, the correction value of the temporary value based on the measured value is corrected, and the correction value is registered as a new reference value in the computer.

Abstract: A tapered surface is formed on a nozzle for picking up an electrical component and placing it on a printed circuit as a light diffusing surface. When a light is radiated to the tapered surface, the light is scattered, and the tapered surface becomes bright. Therefore, the electrical component is clearly observed as a black contour in the bright tapered surface by an observing unit.

Abstract: A substance SS42227 represented by the following formula (I): ##STR1## in which X represents >CH.sub.2 or >C=CHOH. The substance has antimicrobial and antitumor activities, and thus is useful as a medicine.

Abstract: Disclosed are novel physiologically active substance SS 12538, process for its preparation and a novel microorganism producing the same.The novel physiologically active substance SS 12538 is represented by the following formula (I): ##STR1## in which R represents a hydrogen atom, a methyl group or an ethyl group. SS 12538 is obtained by inoculating a novel strain S 12538 in a nutrient-containing medium and cultivating aerobically.SS 12538 has excellent vasodilating action and antibiotic action against a certain gram positive bacteria and dermatophytes.

Abstract: Disclosed herein are Fredericamycin A derivatives, each, represented by the following general formula (I): ##STR1## wherein R means a hydrogen atom or acyl group, A denotes ##STR2## and dotted bonds are optional, with a proviso that when A is ##STR3## or the dotted bonds are contained, R is other than hydrogen atom. They have excellent antibacterial and antitumor activities and at the same time, are extremely stable compared with Fredericamycin A.

Abstract: The specification describes an antiulcer drug containing as an active ingredient a 2,3-butanediol diester derivative represented by the formula (I): ##STR1## where R.sub.A may for example be a saturated or unsaturated alkyl or styryl group and R.sub.B may for example be a saturated or unsaturated alkyl, phenyl, phenylalkyl, phenylpropenyl or phenoxyalkyl group. These groups may optionally be substituted. Many of 2,3-butanediol diester derivatives embraced by the formula (I) are novel. Also described are a novel process for preparing such novel 2,3-butanediol diester derivatives. The 2,3-butanediol diester derivatives of the formula (I) has an action to depress strongly the growth of peptic ulcer and has a very low toxicity.

Abstract: An antiulcer drug comprising Ikarugamycin as its active ingredient is disclosed.

Abstract: The specification describes as antiulcer drug containing as an active ingredient a 2,3-butanediol diester derivative represented by the formula (I): ##STR1## where R.sub.A may for example be a saturated or unsaturated alkyl or phenyl styryl group and R.sub.B may for example be a saturated or unsaturated alkyl, phenyl, phenylalkyl, phenylpropenyl or phenoxyalkyl group. These groups may optionally be substituted. Many of 2,3-butanediol diester derivatives embraced by the formula (I) are novel. Also described are a novel process for preparing such novel 2,3-butanediol diester derivatives. The 2,3-butandiol diester derivatives of the formula (I) has an action to depress strongly the growth of peptic ulcer and has a very low toxicity.

Abstract: The specification describes novel thiazinobenzimidazole derivatives represented by the general formula: ##STR1## wherein R.sub.1, R.sub.2 and X represent a wide variety of substituent groups respectively. The above thiazinobenzimidazole derivatives may be prepared by reacting corresponding 2-hydroxymethyl thiazinobenzimidazole derivatives with corresponding reactive derivatives of carboxylic acid or halogenide or by reacting 2-p-toluenesulfonyloxymethyl-thiazinobenzimidazole derivatives with sodium azides, thiols, phenols or amines. The above thiazinobenzimidazole derivatives wherein X is OH may be prepared by reducing their corresponding 2-alkoxycarbonyl derivatives. Where X represents a p-toluenesulfonyloxy group, the thiazinobenzimidazole derivatives may be obtained by reacting corresponding 2-hydroxymethyl-thiazinobenzimidazole derivatives with p-toluenesulfonyl chloride.

Abstract: The specification describes novel thiazinobenzmidazole derivatives represented by the general formula: ##STR1## wherein R.sub.1, R.sub.2 and X represent a wide variety of substituent groups respectively. The above thiazinobenzimidazole derivatives may be prepared by reacting corresponding 2-hydroxymethyl thiazinobenzimidazole derivatives with corresponding reactive derivatives of carbonylic acid or halogenide or by reacting 2-p-toluenesulfonyloxymethyl-thiazinobenzimidazole derivatives with sodium azides, thiols, phenols or amines. The above thiazinobenzimidazole derivatives wherein X in OH may be prepared by reducing their corresponding 2-alkoxycarbonyl derivatives. Where X represents a p-toluenesulfonyloxy group, the thiazinobenzimidazole derivatives may be obtained by reacting corresponding 2-hydroxymethyl-thiazinobenzimidazole derivatives with p-toluenesulfonyl chloride.