•  3186781   To provide a lens polishing device and a lens processing pan tilt removal mechanism.​

•  5118781   To provide a workpiece carrying device equipped with a pallet fixing mechanism. 

•  5508196   To provide a work centering method of a centering and edging machine

•  5385093   The coarse grinding method and lens grinding machine of the lens

•  5319410   The lens transfer device and lens processing system

•  5222690   The lens transfer device and lens processing system 

•  5279308   Conveying and machine device for work

•  5080309   To provide a lens centering and edging a lens centering method.

•  4357551   To provide a workpiece conveying method and workpiece conveying apparatus

•  4347374   Apparatus for processing a lens

•  4201329   The lens sphere grinding device

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                                                  *These are currently valid in April 2021.