Abstract: A document creation method includes: specifying a missing unit in document information divided into units; and specifying a unit serving as a reference for inserting the missing unit.

Abstract: A wireless sensor system is provided with: a wireless terminal device which is driven by electric power stored in a power storage unit and transmits measurement information indicating a result of measurement by a sensor; and a management device which receives the measurement information transmitted from the wireless terminal device.

Abstract: A vibration damping apparatus utilizing the phenomenon of an apparent viscosity created by the combination of a magnetic body and a magnetic fluid due to the magnetic fields of the magnetic fluid. The apparatus is a piston system, including an inner cylinder formed of a magnetic body accommodated within an outer cylinder formed of a nonferrous material. A passage of suitable dimensions is defined between the outer peripheral surface of the inner cylinder and the inner peripheral surface of the outer cylinder. A magnetic fluid is stored within the outer cylinder. The inner cylinder is firmly secured at its upper face to a supporting shaft formed of a nonferrous material. The supporting shaft is provided at its upper end with an upper frame for suitable devices through a planar plate when the apparatus is used as a vibration proofing frame. Likewise, lower frame is arrange under the lower face of the outer cylinder portion.

Abstract: A drum formed on its outer peripheral surface with symbols and symbol position ascertaining marks. The symbols which, include characters, numerals, code marks and the like are superposed on the drum indirectly by affixing to the drum body a belt on which the symbols are positioned. For this purpose, the drum body is formed with a circumferentially aligned series of equalled spaced projections and the belt is formed with a longitudinally aligned series of perforations having a spacing equal to those of the projections. The drums can be used with any apparatus requiring symbol indication, e.g. time measuring instruments, gas meters, or calculators.

Abstract: A drum is formed on its outer peripheral surface with symbols and symbol position ascertaining marks, and a tester of simple construction is used for testing whether or not the symbols are positioned with a high degree of precision. The symbols, which include characters, numerals, code marks and the like, are superposed directly on the drum by printing or etching or indirectly by affixing to the drum body a belt on which the symbols are positioned. The drums can be used with any apparatus requiring symbol indication, e.g. time measuring instruments, gas meters, or calculators.