For anyone who can't make it out, and for other searching for the same pool cue, the butt says:
U.S. Patent # 4,816,203
Patent filed in 1987, granted in 1989, and is now expired.
Patent owner is Son-Kung Tsai of Taichung, Taiwan.
I am making a leap, but I am going to say that it came out of the Kaofa Wood Factory Co., LTD. (once operated a website at poolcues.com.tw, and now, at kfcues.fm.alibaba.com). The family who owns this factory also have the last name Tsai and they are based out of the same city.
Kao Fa Wood Factory Co., LTD.
KF Cues is a family enterprise that was founded in 1970 by Taiwanese business man Mr. Charles Tsai. The company's growth has been constant and stable ever since it's fledgling beginning until now, 2006, over 36 years. Mr. Tsai's son Paul Tsai, explains the success of the company by saying "We do ordinary things extraordinarily well". Thirty six years of dedication and expertise has given KF Cues the leading edge on it's competition. KF Cues is in a class all by itself.
Our Cues are made of the finest Canadian maples and other hard woods such as Ebony, Rosewood and Snake wood. At KF Cues each item produced is under the careful scrutiny and attention of our dedicated workers.
Our handcrafted billiard, snooker and pool cues are used often in today's professional world of billiard competition.
Manufactures, supplies, and repairs pool, snooker, and billiard cues with standard and customized options.