Abstract: Provided is a degradation inhibitor that delays the progress of the degradation reaction of 2ccPA and has an excellent stabilization effect by using a carbacyclic phosphatidic acid compound represented by formula (1): wherein R1 represents hydrogen, alkali metal, alkyl, arylalkyl, or aryl; bonds indicated by solid and dotted lines represent single or double bonds; wavy lines represent single bonds; and when the single bond is adjacent to a double bond, the steric configuration is E-configuration, Z-configuration, or any mixture thereof.

Abstract: A transmitting terminal can transmit a content held by itself to a specific receiving terminal having no email software as if using a mailer. The transmitting terminal (10) and the receiving terminal (20) are connected to a delivery server (30) via a network (4). The delivery server (30) comprises: a database (36) for registering the device ID that specifies the receiving terminal (20); a content storage (39) for temporarily storing a content transmitted from the transmitting terminal (10); and table (33, 37) for managing contents separately on a per device ID basis of the receiving terminal. The delivery server (30), when receiving a request from the receiving terminal (20), refers to the tables (33, 27) and transmits to the receiving terminal (20) a content, the transmission destination of which corresponds to the device ID of the receiving terminal (20).

Abstract: A spindle device (20) includes: a bracket (21) swingably mounted on a support arm (9) and having a tubular portion (22) substantially perpendicular to the swing axis of the bracket (21); and, a spindle (30) including a rotation portion (31) capable of mounting a tool onto the leading end thereof, a housing (32) insertably and removably mounted on the tubular portion (22) of the bracket (21) and having a mounting surface (35a) disposed opposed to the surface of the bracket (21), and bearings (50 and 51) respectively interposed between the rotation portion (31) and housing (32) for supporting the rotation portion (31) rotatable relative to the housing (32). In the mounting surface (35a) of the housing (32), there are formed flow passage openings (80˜86) for fluid which are supplied to the spindle (30).

Abstract: To provide a spindle device and a machining center, in which spindle replacement can be carried out in an extremely short time, downtime during maintenance is short, and productivity is high. In a spindle device 20, there are provided wirings 41, 42 extended from a spindle 30 and wired to support arms via a bracket 21, and joint components 74, each provided at a position a predetermined length extended from extended parts for the wirings 41, 42, are accommodated within the bracket 21.

Abstract: To provide a spindle device and a machining center, in which spindle replacement can be carried out in an extremely short time, downtime during maintenance is short, and productivity is high. In a spindle device 20, there are provided wirings 41, 42 extended from a spindle 30 and wired to support arms via a bracket 21, and joint components 74, each provided at a position a predetermined length extended from extended parts for the wirings 41, 42, are accommodated within the bracket 21.

Abstract: A spindle device 20 includes: a bracket 21 swingably mounted on a support arm 9 and having a tubular portion 22 substantially perpendicular to the swing axis of the bracket 21; and, a spindle 30 including a rotation portion 31 capable of mounting a tool onto the leading end thereof, a housing 32 insertably and removably mounted on the tubular portion 22 of the bracket 21 and having a mounting surface 35a disposed opposed to the surface of the bracket 21, and bearings 50 and 51 respectively interposed between the rotation portion 31 and housing 32 for supporting the rotation portion 31 rotatable relative to the housing 32. In the mounting surface 35a of the housing 32, there are formed flow passage openings 80˜86 for fluid which are supplied to the spindle 30.