Abstract: The invention provides crystals of N2-(N,N-dimethyl-L-valyl)-N-[(1S,2R)-2-methoxy-4-[(2S)-2-[(1R,2R)-1-methoxy-2-methyl-3-oxo-3-[(2-phenylethyl)amino]propyl]-1-pyrrolidinyl]-1-[(S)-1-methylpropyl]-4-oxobutyl]-N-methyl-L-valinamide or salts thereof which possess potent antitumor activity and methods for their preparation.

Abstract: The invention provides a light emitting device and a semiconductor device each having improved characteristics by preventing occurrence of a damage caused by contact of a tool. On a substrate, an n-type semiconductor layer, an active layer, and a p-type semiconductor layer are stacked. On the p-type semiconductor layer, a p-side electrode is provided. The p-type semiconductor layer has a projected portion for limiting current in correspondence with a current injection area in the active layer. A projected portion is formed on the surface of the p-side electrode in correspondence with the projected portion for limiting current. On the surface of the p-side electrode, a protective portion is also provided in correspondence with the area other than the current injection area in the active layer. The top face of the protective portion is higher than that of the projected portion.

Abstract: The invention provides a method for efficiently performing the alignment work of a laser diode chip with an optical fiber. A laser diode chip is faced to a coupling end face of a lensed fiber. According to algorisms stored inside an algorism storage part, X, Y and Z stages move the lensed fiber for alignment. The lensed fiber takes in laser light as it is moved in the optical axis direction (Z-axis direction) of the laser light from the laser diode chip. The lensed fiber is moved in the Z-axis direction by every movement, a half of a wavelength of the laser light, on the basis of the reference position thereof. Every time at the step moving, a light power of the laser light incident into the lensed fiber is measured. A position where the measured value becomes the maximum or a neighboring position thereof is defined as the optimum position of the optical fiber in the Z-axis direction.

Abstract: A controller of an optical axis aligning apparatus carries out quadric surface approximation with a plane parallel to a connecting end face of an optical component or an optical fiber, in order to align the emission axis of the optical component and the optical axis of the optical fiber in connecting the component and the fiber, and then carries out quadric function approximation in the direction of an axis perpendicular to the plane related to the quadric surface approximation, thereby securely finding a maximum light quantity point at a lower frequency of stage operation in the aligning apparatus to shorten the tact time for optical axis alignment.

Abstract: The invention provides a light emitting device and a semiconductor device each having improved characteristics by preventing occurrence of a damage caused by contact of a tool. On a substrate, an n-type semiconductor layer, an active layer, and a p-type semiconductor layer are stacked. On the p-type semiconductor layer, a p-side electrode is provided. The p-type semiconductor layer has a projected portion for limiting current in correspondence with a current injection area in the active layer. A projected portion is formed on the surface of the p-side electrode in correspondence with the projected portion for limiting current. On the surface of the p-side electrode, a protective portion is also provided in correspondence with the area other than the current injection area in the active layer. The top face of the protective portion is higher than that of the projected portion.

Abstract: The invention provides a light emitting device and a semiconductor device each having improved characteristics by preventing occurrence of a damage caused by contact of a tool. On a substrate, an n-type semiconductor layer, an active layer, and a p-type semiconductor layer are stacked. On the p-type semiconductor layer, a p-side electrode is provided. The p-type semiconductor layer has a projected portion for limiting current in correspondence with a current injection area in the active layer. A projected portion is formed on the surface of the p-side electrode in correspondence with the projected portion for limiting current. On the surface of the p-side electrode, a protective portion is also provided in correspondence with the area other than the current injection area in the active layer. The top face of the protective portion is higher than that of the projected portion.

Abstract: The present invention provides a ferrule holder comprising an integral assembly which comprises first pinching portions for pinching the side of a ferrule in a optical ferrule-attached fiber through a line contact of about 2 mm in the longitudinal direction of the ferrule and second pinching members for pinching the side of the ferrule through a line contact of about 0.5 mm in the longitudinal direction of the ferrule, when the adjustment of optical axis in the optical ferrule-attached fiber is to be performed before it is optically coupled with an optical part. Since the adjustment of optical axis is performed while pinching the side of the ferrule through the relatively short line contact in the longitudinal direction of the ferrule after the ferrule has been fixed to a first supporting member, the sufficient range of leverage movement can be secured.

Abstract: The invention provides a method for efficiently performing the alignment work of a laser diode chip with an optical fiber. A laser diode chip is faced to a coupling end face of a lensed fiber. According to algorisms stored inside an algorism storage part, X, Y and Z stages move the lensed fiber for alignment. The lensed fiber takes in laser light as it is moved in the optical axis direction (Z-axis direction) of the laser light from the laser diode chip. The lensed fiber is moved in the Z-axis direction by every movement, a half of a wavelength of the laser light, on the basis of the reference position thereof. Every time at the step moving, a light power of the laser light incident into the lensed fiber is measured. A position where the measured value becomes the maximum or a neighboring position thereof is defined as the optimum position of the optical fiber in the Z-axis direction.

Abstract: A sender device 1 stores, in header information about image information, information indicating that attribute information and image data rearranged in sequence, and produces image information by means of storing attribute information and image data in a predetermined sequence. The thus-produced image information is sent to a receiver device 2 by way of a network line 3. When receipt of image information is initiated, the receiver device 2 refers to the header information, thereby determining presence/absence, in the header information, of information indicating that attribute information and image data are stored in a predetermined sequence. When it has been determined that attribute information and image data are arranged in a predetermined sequence, image data included in the received image information are immediately decompressed, and the thus-decompressed image data are output in the form of a record or display.

Abstract: The invention provides a light emitting device and a semiconductor device each having improved characteristics by preventing occurrence of a damage caused by contact of a tool. On a substrate, an n-type semiconductor layer, an active layer, and a p-type semiconductor layer are stacked. On the p-type semiconductor layer, a p-side electrode is provided. The p-type semiconductor layer has a projected portion for limiting current in correspondence with a current injection area in the active layer. A projected portion is formed on the surface of the p-side electrode in correspondence with the projected portion for limiting current. On the surface of the p-side electrode, a protective portion is also provided in correspondence with the area other than the current injection area in the active layer. The top face of the protective portion is higher than that of the projected portion.

Abstract: A peptide derivative represented by the following formula or a salt thereof ##STR1## wherein A represents a hydrogen atom, and B represents a phenyl group substituted with a hydroxyl group;said derivative has an antitumor activity stronger than that of dolastatin 10, and is useful as an anticancer or antitumor agent.

Abstract: An image processing system which comprises number-of-divisions determination means, conversion means, an intermediate buffer, selection means, expansion means, and a band memory, characterized by separation means for separating the intermediate code into proper information and attribute information, attribute determination means for determining whether or not the attributes of the preceding attribute information differ from the attributes of the subsequent attribute information, control means for storing the subsequent attribute information in the intermediate buffer if the attribute determination means determines that the attributes of the preceding attribute information differ from the attributes of the subsequent attribute information, restoration means for restoring the subsequent attribute information using the preceding attribute information code when the intermediate code is output from the intermediate buffer to the expansion means, and area information addition means for adding area information indic

Abstract: A tetrapeptide derivative represented by the following formula or a salt thereof has a higher cytostatic activity than dolastatin 10, and is useful as an antitumor agent: ##STR1## wherein, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are the same or different and each represent a hydrogen atom, a lower alkyl group or an aralkyl group;Q represents ##STR2## or a group of -A.sub.2 -R.sub.7, wherein, A.sub.1 represents a direct bond or ##STR3## Y represents a hydrogen atom or --COR.sub.6, R.sub.5 represents a hydrogen atom, a lower alkyl group or an aralkyl group,R.sub.6 represents a hydroxyl group, a lower alkoxy group, an aralkyloxy group or ##STR4## wherein, R.sub.8 and R.sub.9 are the same or different and each represent a hydrogen atom, a lower alkyl group, a phenyl group or a 4- to 7-membered heterocyclic group containing one or two hetero atoms selected from S, O and N, or alternativelyR.sub.8 and R.sub.

Abstract: An output controlling device for reducing a processing time and substantially reducing erroneous determinations. In an image recording apparatus or the like, when a control language describing input data sent from a higher level apparatus is determined, determining rules set for respective control languages are consecutively applied. Since an optimum determining rule can be applied with respect to each control language, it is possible to simultaneously attain a reduction in the processing time and a lowering of the possibility of erroneous determination as compared with a case where the same determining rule is applied uniformly. In addition, if command groups are classified, and different determining rules are used for respective groups, the case is equivalent to a case where a plurality of determining rules are applied with respect to each control language, so that a further reduction in the processing time and a further lowering of the possibility of erroneous determination can be attained.

Abstract: This invention relates to peptide derivatives of the formula ##STR1## or salts thereof, wherein: (a) Q.sub.1 represents a 1-dimethylamino-2-methylpropyl group and Q.sub.2 represents an (R)- or (S)-2-hydroxy-2-phenylethylamino group, a 2-phenylcyclopropylamino group or a 1,2,3,4-tetrahydroisoquinolin-2-yl group, or(b) Q.sub.1 represents a 1-methyl-2-pyrrolidinyl group and Q.sub.

Abstract: A peptide derivative represented by the following formula or a salt thereof ##STR1## wherein A and B each represent either of the following (a) and (b), (a) A represents a hydrogen atom, and B represents a phenyl group substituted with a halogen atom, hydroxyl group, lower alkyl group or lower alkoxy group, or a heteroaryl group,(b) A represents --CONH--R.sup.1, --CSNH--R.sup.1, a hydroxymethyl group, a lower alkoxycarbonyl group or a carboxyl group, wherein, R.sup.1 represents a lower alkyl group or a heteroaryl group, and B represents a phenyl group optionally substituted with a halogen atom, hydroxyl group, lower alkyl group or lower alkoxy group,has an antitumor activity stronger than that of dolastatin 10, and is useful as an anticancer or antitumor agent.

Abstract: A tetrapeptide derivative represented by the following formula or a salt thereof has a higher cyto-static activity than dolastatin 10, and is useful as an antitumor agent: ##STR1## wherein, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are the same or different and each represent a hydrogen atom, a lower alkyl group or an aralkyl group;Q represents ##STR2## or a group of --A.sub.2 --R.sub.7, wherein,A.sub.1 represents a direct bond or ##STR3## Y represents a hydrogen atom or --COR.sub.6, R.sub.5 represents a hydrogen atom, a lower alkyl group or an aralkyl group,R.sub.6 represents a hydroxyl group, a lower alkoxy group, an aralkyloxy group or ##STR4## wherein, R.sub.8 and R.sub.9 are the same or different and each represent a hydrogen atom, a lower alkyl group, a phenyl group or a 4- to 7-membered heterocyclic group containing one or two hetero atoms selected from S, O and N, or alternatively R.sub.8 and R.sub.

Abstract: In an air conditioner having a single outdoor unit and a plurality of indoor units, if at least two indoor units supply operation commands, an indoor unit allowed to be operated and an indoor unit not allowed to be operated are determined in accordance with a predetermined operation priority order. An operation standby signal is sent to the indoor unit not allowed to be operated. If the indoor unit allowed to be operated stops its operation, a new indoor unit is determined by again referring to the operation priority order. A confirmation signal is then sent to the determined new indoor unit under the standby state until then. If the indoor unit received the confirmation signal sends a response signal indicating that the indoor unit still intends to operate, then an operation permission signal is given to the new indoor unit.

Abstract: In this air-conditioner, combustion test of a refrigerant heater is conducted through a control valve on the basis of a minimum combustion command signal and a maximum combustion command signal set in advance at a plurality of stages to store values of the minimum combustion command signal and the maximum combustion command signal presenting an optimum combustion state from the above-mentioned command signals, whereby in an actual operation, control of the control valve is carried out by using stored values with respect to the minimum combustion command signal and the maximum combustion command signal.

Abstract: In an image read method and device for reading an image on an original, more particularly large size original, pairs of transfer rollers are detachably provided on the insert side and the original discharge side of a platen roller, which is detachably disposed facing a platen glass. Sensors for sensing positions of an original transferred by the transfer roller pairs and the platen roller are provided. Touching and detaching between the transfer roller pairs and the platen roller are sequentially controlled according to the positions of the original as sensed by the sensor.