Whow, another well-known piece of software that was written by Fabrice Bellard. He's also the original author of qemu, tinyemu, tcc, ffmpeg and many more.

https://bellard.org

Incidentally, PC BIOSes used the LZ* family of compression algorithms too. LZSS (also known as LZ12/4 for its allocation of indicator word bits), LZARI, LZHUF (which lead to the famous LHA/LZH, and then Deflate/Zlib, ZIP, etc.), and LZINT were all commonly encountered. Apparently Phoenix had a patent on it:

https://patents.google.com/patent/US5836013A/en (search for LZSS)

Despite the relative obscurity of Okumura's code, it has definitely had a huge impact.