Sumitomo Chemical Company, Limited

Yoshitaka Shinomiya

Koji Kashu

Yasuyuki Kondo

Daizaburo Yashiki

To carry out accurate defect inspection over a wide area, a defect inspection device includes: a radiation source section configured to emit an electromagnetic wave to a separator roll; and a sensor section configured to detect the electromagnetic wave that the radiation source section has emitted to the separator roll, the sensor section being configured to detect the electromagnetic wave before and after the separator roll is moved relative to the radiation source section.

Method for producing separator roll

To carry out accurate defect inspection over a wide area, a defect inspection device () includes: a radiation source section () configured to emit an electromagnetic wave () to a separator roll (); and a sensor section () configured to detect the electromagnetic wave () that the radiation source section () has emitted to the separator roll (), the sensor section () being configured to detect the electromagnetic wave () before and after the separator roll is moved relative to the radiation source section ().

Defect inspection device

To inspect a separator roll for a defect inside the separator roll with use of only a small number of defect inspection devices, a defect inspection device () includes: a radiation source section () configured to emit an electromagnetic wave () to a separator roll (); and a sensor section () configured to detect the electromagnetic wave () having passed through the separator roll ().

Defect inspection device, defect inspection method, method for producing separator roll, and separator roll

A transfer system includes a robot arm configured to hold a core, which is tubular, of at least one separator roll from a side of a first side surface of the at least one separator roll. The at least one separator roll includes the core and a separator, wound around an outer circumferential surface of the core. The robot arm is further configured to take out the at least one separator roll from a rack. A defect inspection device is configured to hold the core from a side of a second side surface of the at least one separator roll, receive the at least one separator roll from the robot arm, and inspect, for a defect, the at least one separator roll thus received.

Transfer system and transfer method

The present invention makes it possible to check a target object highly accurately and quickly. In a sensor having an electromagnetic wave reception region, suitability of portions for capturing an image of a subject which moves fast is heightened as a distance from a center increases in a plan view of a circular profile surface.

Growing community of inventors

Daegu, South Korea

Yoshitaka Shinomiya