What does Japanese “reserved” Button look like on SoftBank?

On SoftBank it is the design shipped in 2014, shown above at full size. Older revisions are listed beneath it.

When did SoftBank add Japanese “reserved” Button?

SoftBank first drew Japanese “reserved” Button in 1999, released January 1, 1999.

SoftBank Corp. has shipped 8 versions of Japanese “reserved” Button. Each is dated, so you can see when the design changed.

SoftBank 2000

SoftBank shipped a new design for Japanese “reserved” Button in 2000, released January 1, 2000. The previous design is shown beside it.

✳ marks a release that redrew this emoji. The rest re-shipped the design unchanged.

What does Japanese “reserved” Button look like on SoftBank?: On SoftBank it is the design shipped in 2014, shown above at full size. Older revisions are listed beneath it.
When did SoftBank add Japanese “reserved” Button?: SoftBank first drew Japanese “reserved” Button in 1999, released January 1, 1999.
How many times has SoftBank redrawn Japanese “reserved” Button?: SoftBank Corp. has shipped 8 versions of Japanese “reserved” Button. Each is dated, so you can see when the design changed.