Abstract: Control parameters are regulated without oscillating a servo control system. Respective control parameters P[p] (p=0, 1 - - - ), arranged in the order of gradually increasing a chance of oscillating the servo control system, are set sequentially starting with P[], a torque command Tr or a fluctuation amount &sgr;, showing a variation in frequency component of vibration of a speed feedback amount &ohgr;, is determined for each of control parameters, and the servo control system is assumed to have reached an oscillation criticality when a fluctuation amount sexceeds a specified value to thereby reset a control parameter set at that time to P[p−q] (q; natural number) or to P[0].

Abstract: Prior to welding together two overlapped plated steel sheets 4 and 5 by laser lap welding that irradiates parts of the plated steel sheets (4, 5) extending on a weld line (Lw), slits (4b) are formed intermittently in the upper plated steel sheet (4) with a laser beam (L). Subsequently, a welding head (1) is moved along the weld line (Lw) while the upper plated steel sheet (4) is pressed against the lower plated steel sheet (5) by pressure rollers. Parts of the upper plated steel sheet (4) extending on the weld line (Lw) and not provided with the slits (4b) are irradiated with the laser beam to laser-weld the plated steel sheets (4, 5) together. A vapor of the component of the coating layers coating the joining surfaces (4a, 5a) of the plated steel sheets (4, 5) produced from the coating layers by the heat produced by the laser beam is discharged through the slits (4b).

Abstract: A switch device reduces a switching sound (an impinging sound) at the time of manipulation with a constitution of a click mechanism which uses a spring member having a projection which is brought into slide contact with a cam surface formed of plateaus and valleys. The switch device includes a manipulating member having a cam surface which is formed of plateaus and valleys arranged contiguously and alternately and a spring member having the projection and generating a click feeling when the projection is brought into slide contact with the plateaus and the valleys of the cam surface. The spring member is provided with an auxiliary spring which is brought into slide contact with the manipulating member corresponding to the slide contact of the projection with the plateaus and the valleys of the cam surface. An auxiliary spring receiving portion with which the auxiliary spring is brought into slide contact is formed in the vicinity of the cam surface.

Abstract: An adhesive composition is prepared from a major proportion of (1) a corboxyl group-containing adhesive component having a weight average molecular weight of 800,000 or greater and a smaller amount of (2) an amino group-containing adhesion-improving component having a weight average molecular weight of 100,000 or less which is added to crosslink the component (1).

Abstract: A defect inspection apparatus for detecting defects existing on a surface of a semiconductor sample and/or inside the sample based on light information from the sample obtained by irradiating a light beam onto the sample is provided, which comprises a detecting means for detecting positions in the depth direction where the defects exist and distribution of the defects based on the light information; a setting means for setting a position in the depth direction where defects exist; and a means for displaying the distribution of the defects obtained by the detecting means, the displaying means displaying the distribution of the defects corresponding to the position in the depth direction set by the setting means.

Abstract: A defect inspection apparatus for detecting defects existing on a surface of a semiconductor sample and/or inside the sample based on light information from the sample obtained by irradiating a light beam onto the sample is provided, which comprises a detecting means for detecting positions in the depth direction where the defects exist and distribution of the defects based on the light information; a setting means for setting a position in the depth direction where defects exist; and a means for displaying the distribution of the defects obtained by the detecting means, the displaying means displaying the distribution of the defects corresponding to the position in the depth direction set by the setting means.

Abstract: The present invention provides a switch device which can reduce a switching sound (an impinging sound) at the time of manipulation with a constitution of a click mechanism which uses a spring member having a projection which is brought into slide contact with a cam surface formed of plateaus and valleys. The switch device includes a manipulating member having a cam surface which is formed of plateaus and valleys arranged contiguously and alternately and a spring member having the projection and generating a click feeling when the projection is brought into slide contact with the plateaus and the valleys of the cam surface. The spring member is provided with an auxiliary spring which is brought into slide contact with the manipulating member corresponding to the slide contact of the projection with the plateaus and the valleys of the cam surface. An auxiliary spring receiving portion with which the auxiliary spring is brought into slide contact is formed in the vicinity of the cam surface.

Abstract: Prior to welding together two overlapped plated steel sheets 4 and 5 by laser lap welding that irradiates parts of the plated steel sheets (4, 5) extending on a weld line (Lw), slits (4b) are formed intermittently in the upper plated steel sheet (4) with a laser beam (L). Subsequently, a welding head (1) is moved along the weld line (Lw) while the upper plated steel sheet (4) is pressed against the lower plated steel sheet (5) by pressure rollers. Parts of the upper plated steel sheet (4) extending on the weld line (Lw) and not provided with the slits (4b) are irradiated with the laser beam to laser-weld the plated steel sheets (4, 5) together. A vapor of the component of the coating layers coating the joining surfaces (4a, 5a) of the plated steel sheets (4, 5) produced from the coating layers by the heat produced by the laser beam is discharged through the slits (4b).

Abstract: A defect inspection apparatus for detecting defects existing on a surface of a semiconductor sample and/or inside the sample based on light information from the sample obtained by irradiating a light beam onto the sample is provided, which comprises a detecting means for detecting positions in the depth direction where the defects exist and distribution of the defects based on the light information; a setting means for setting a position in the depth direction where defects exist; and a means for displaying the distribution of the defects obtained by the detecting means, the displaying means displaying the distribution of the defects corresponding to the position in the depth direction set by the setting means.

Abstract: A defect inspection apparatus for detecting defects existing on a surface of a semiconductor sample and/or inside the sample based on light information from the sample obtained by irradiating a light beam onto the sample is provided, which comprises a detecting means for detecting positions in the depth direction where the defects exist and distribution of the defects based on the light information; a setting means for setting a position in the depth direction where defects exist; and a means for displaying the distribution of the defects obtained by the detecting means, the displaying means displaying the distribution of the defects corresponding to the position in the depth direction set by the setting means.

Abstract: In order to easily evaluate defects of the silicon wafer affecting the characteristic of a device, the present invention provides a defect inspection apparatus for detecting defects existing on a surface of a sample and/or inside the sample, which comprises a display apparatus for displaying a distribution of the defects on a graph having coordinate axes of distance from a central position of the sample and the depth where the defect exists based on the depth information and the positional information obtained by a detecting means.

Abstract: The present invention relates to novel antifungal antibiotics herein designated as pradimicin L and pradimicin FL, and derivatives thereof. Pradimicins L and FL are produced by Actinomadura verrucosospora subsp. neohibisca strain R103-3, ATCC No. 53930.

Abstract: A spindle motor comprises a stationary shaft, a rotor hub rotatably mounted by ball bearings to the stationary shaft, and annular sealing members disposed between the outer surface of the stationary shaft and the inner side of the rotor hub axially outwardly of the ball bearings. The sealing member is directly fitted onto the outer race of the corresponding ball bearing. The outer race of each ball bearing is high precision finished so that the sealing member is definitely coaxial with the stationary shaft regardless of the finishing accuracy on the inner side of the rotor hub. Accordingly, the radial distance between the inner side of the sealing member and the outer surface of the stationary shaft can be minimized with high precision offering an excellent labyrinth effect.

Abstract: A cast screw rotor has an opened lightening or reduced weight hole formed inside each thread portion. The opened hole is formed along torsion of the thread portion, and a shaft is inserted into an axial hole. The screw rotor is manufactured by a method in which each of the thread portions and the axial hole are formed on the basis of the reduced weight hole.

Abstract: An object of the present invention is to provide a rotor of a fluid machine in which the rotor can be made light in weight and moment of inertia of the rotor can be reduced and the rotor can be easily balanced in its rotating direction. In this rotor of a fluid machine, a fluid is compressed and pumped by a pair of rotors engaged with each other. A hollow portion is formed within a tooth stripe portion of one rotor. A thickness forming portion for a balance correction is formed in an opening portion of this hollow portion to balance the rotor in its rotating direction and is projected on an inner circumferential side of the hollow portion.

Abstract: There are provided male and female rotors, which engage with each other at screw-shaped tooth trace portions formed on the rotor bodies; a compressor casing which houses these rotors and has a suction port on one side in the axial direction and a discharge port on the other side in the axial direction; hollow portions which are provided in the tooth trace portions of the male screw rotor and communicate with the suction port; and partition walls which are provided at the end on the discharge port side of the tooth trace portions and block the hollow portions.

Abstract: A shaft hole 69 in a cast rotor main body 67 has a hollow space 75 and an opening 79 in a tooth trace 73 formed by using a core. A hollow screw rotor 35 is formed by fixing a rotor shaft 47 in this shaft hole 69. A straight portion 81 to be chucked at the time of machining is formed at the inner peripheral side of the opening 79.

Abstract: A spindle motor comprises a stationary shaft, a rotor hub rotatably mounted by ball bearings to the stationary shaft, and annular sealing members disposed between the outer surface of the stationary shaft and the inner side of the rotor hub axially outwardly of the ball bearings. The sealing member is directly fitted onto the outer race of the corresponding ball bearing. The outer race of each ball bearing is high precision finished so that the sealing member is definitely coaxial with the stationary shaft regardless of the finishing accuracy on the inner side of the rotor hub. Accordingly, the radial distance between the inner side of the sealing member and the outer surface of the stationary shaft can be minimized with high precision offering an excellent labyrinth effect.

Abstract: A novel antibiotic complex designated BU-4224V produced by fermentation of Kibdelosporangium albatum sp. nov. Strain R761-7. The complex may be separated chromatographically into bioactive components designated BU-4224V A, B.sub.1, B.sub.2, and C. The components BU-4224V B.sub.1 and B.sub.2 display both antiviral and antimicrobial activity, while component BU-4224V A has antimicrobial activity and component BU-4224V C has antiviral activity.

Abstract: A shaft hole 69 in a cast rotor main body 67 has a hollow space 75 and an opening 79 in a tooth trace 73 formed by using a core. A hollow screw rotor 35 is formed by fixing a rotor shaft 47 in this shaft hole 69. A straight portion 81 to be chucked at the time of machining is formed at the inner peripheral side of the opening 79.