IN THE UNITED STATES PATENT AND TRADEMARK OFFICE
`
`Mail Stop Patent Board
`Patent Trial and Appeal Board
`US. Patent and Trademark Office
`PO. Box 1450
`
`Alexandria, VA 22313-1450
`
`PATENT OWNER’S POWER OF ATTORNEY IN POST-GRANT PROCEEDINGS
`
`Patent Owner. Semiconductor Energy Laboratory Co., Ltd., hereby appoints the following
`
`practitioners as its attorneys to transact all business in the United States Patent & Trademark Office
`
`associated with any of its inter partes review. covered business method review, post grant review, or other
`
`review proceedings before the Patent Trial and Appeal Board:
`
`Eric Robinson, Reg. No. 38,285
`
`and all practitioners associated with PTO Customer Number 31780.
`
`I have the authority to execute this document on behalf of Semiconductor Energy Laboratory Co.,
`
`Ltd.
`
`SEMICONDUCTOR ENERGY LABORATORY 00., LTD
`
`
`
`
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