Murakami-Wolf-Swenson

Background
MWS was a joint venture between animators Jimmy Murakami, Fred Wolf, and Charles Swenson. It began as Murakami-Wolf Productions in the 1960s, and became known as Murakami-Wolf-Swenson in 1978. The company opened a Dublin office in 1989; by then, Murakami and Swenson had left the company. The company was renamed Fred Wolf Films in 1992.

Logo (December 14, 1987-March 2, 1992)
Visuals: On a white-to-black gradient background are the letters "M W S " (in a stylized font and in a -white gradient color, going from top to bottom) and the word "inc " (the same font, in lowercase, and approximately 1/3 the size of "M W S ") next to it. Underneath the logo, in smaller white letters, is "Murakami · Wolf · Swenson" in Helvetica Neue Bold.

Variant: On Toxic Crusaders, the logo is seen between "A" and "PRODUCTION".

Technique: None.

Audio: In most cases, it's the last few seconds of the show's ending theme.

Audio Variant: Starting in 1991, a comical-mystery sounding synth tune is heard, produced using an E-mu Proteus 2 Orchestral synthesizer. An extended variant of this exists, where the second-to-last note sustains a bit longer.

Availability:
 * It can be seen on every series they produced, beginning with the 1987 Teenage Mutant Ninja Turtles series as well as James Bond Jr. and Toxic Crusaders, respectively.
 * The standard logo does not show up on the 11 episodes of Alvin and the Chipmunks they produced; they instead end with the 1982 version of the 1981 Ruby-Spears logo (since Ruby-Spears farmed out those 11 episodes to MWS).
 * However, the logo proper can also be seen on the 1991 special Rocking with the Chipmunks, which appears on the 1992 Buena Vista Home Video release of said special.
 * This logo also appears on the 1987 Teenage Mutant Ninja Turtles series on the Official Teenage Mutant Ninja Turtles YouTube channel.