Small 24.1 KB PDF for a 2SB772S, with UTC in the name, which most likely refers to Unisonic Technologies, a maker of discrete transistors.

UTC version of the 2SB772 documentation, a 22.5 KB PDF; UTC very likely stands for Unisonic Technologies.

162 KB PDF for the 2SB772, a widely used PNP power transistor with a JIS part number, where 2SB stands for a low-frequency PNP device.

Datasheet PDF, 24.1 KB, for the 2SB772L variant from UTC, likely Unisonic Technologies.