Patent ID: 11970681
Assignee: USHIO DENKI KABUSHIKI KAISHA
Field: Biotechnology (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A plate having microchannels therein, comprising:
at least an identification mark for identifying a relative position of a corresponding one of the microchannels in a plane direction of the plate,
wherein the plate includes a first substrate in which a channel forming groove for forming the microchannels is formed and a second substrate stacked on the first substrate, the first substrate and the second substrate being bonded to each other, and the first substrate is made of a transparent synthetic resin, and the first substrate is provided with an injection port through which a sample is injected and an exhaust port through which the sample is discharged,
wherein a weld line is formed through injection molding in the first substrate, and the weld line is formed by uniquely extending from opening edges of the injection port or the discharge port toward a peripheral edge of the first substrate, and the identification mark for identifying a relative position of a corresponding one of the microchannels is made by the weld line.