What does 著作権マーク look like on HTC?

On HTC it is the design shipped in Sense 8, shown above at full size. Older revisions are listed beneath it.

When did HTC add 著作権マーク?

HTC first drew 著作権マーク in Sense 7, released 2015年3月30日.

HTC Corporation has shipped 2 versions of 著作権マーク. Each is dated, so you can see when the design changed.

HTC

HTC Corporation has drawn 著作権マーク 2 times. Every revision HTC has shipped is below, newest first.

What does 著作権マーク look like on HTC?: On HTC it is the design shipped in Sense 8, shown above at full size. Older revisions are listed beneath it.
When did HTC add 著作権マーク?: HTC first drew 著作権マーク in Sense 7, released 2015年3月30日.
How many times has HTC redrawn 著作権マーク?: HTC Corporation has shipped 2 versions of 著作権マーク. Each is dated, so you can see when the design changed.

HTC artwork for this emoji spans 2015 to 2016.