Toshiba
proper noun
The east lawn isn't some eastern lawn, it's in reference to the company Toshiba. Might be better to look at the reading first for this one.
This word combines the on'yomi for 東 and the kun'yomi you learned with 芝. You can just think of the meaning (Toshiba) to remember the readings here, so you should be good to go.
東芝のお客様センターから届いたメールは、全文文字化けしていました。
The email from Toshiba's customer center was all garbled.