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Patent
Bando Chemical Industries Ltd. | Date: 2015-02-02

A power transmission belt has an uneven surface of rubber which when the power transmission belt is wound around a flat pulley, comes in contact with the flat pulley. The uneven surface has projected parts each having a flat top surface.


Patent
Bando Chemical Industries Ltd. | Date: 2015-03-16

A power transmission belt has an uneven surface of rubber which when the power transmission belt is wound around a flat pulley, comes in contact with the flat pulley. The uneven surface has projected parts each having a flat top surface.


Patent
Bando Chemical Industries Ltd. | Date: 2015-09-18

A friction transmission belt includes a belt body, formed of a rubber composition, looped over a pulley, and transmitting power. The friction transmission belt includes a reinforcing fabric wrapping at least a surface, of the belt body, in contact with the pulley. The reinforcing fabric is a knitted fabric, and on the surface of the belt body in contact with the pulley, a wale direction of the reinforcing fabric is a direction in which the friction transmission belt travels.


Patent
Bando Chemical Industries Ltd. | Date: 2015-01-26

A notched transmission belt has a plurality of notches whose bottom in a cross-section taken along a plane orthogonal to the width direction of the belt includes a linear portion at a center, and recessed curved portions continuously formed at both sides of the linear portion.


Patent
Bando Chemical Industries Ltd. | Date: 2015-05-19

A natural-frequency measurement device for measuring the natural frequency of a belt includes: an acceleration sensor attached to a portion of the belt between an adjacent pair of pulleys to sense acceleration resulting from the vibration of the belt; and a measuring instrument configured to measure the natural frequency of the belt based on the acceleration sensed by the acceleration sensor.

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