Q. John Madera signed a promissory note payable to A. Duda & Sons, Inc., in the amount of $47,872. The note began "for value received, we promise to pay A. Duda & Son, Inc. .." Madera signed the note beneath the name and address of Tomatoes, Inc., as follows:

TOMATOES, INC.
3118 Produce Row
Houston, TX 77023
/s/John Madera

When the note was not paid, Duda & Sons filed suit against Tomatoes and against Madera individually, alleging that the two defendants were jointly and severally liable for the balance due on the note. Is Madera liable on the note in an individual capacity?