The ornamental design for a ricecooker, as shown and described.
The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.
1. Rice cooker
1.1 is a front perspective view of a rice cooker showing my new design;
1.2 is a front plan view thereof;
1.3 is a rear plan view thereof;
1.4 is a right plan view thereof;
1.5 is a left plan view thereof;
1.6 is a top plan view thereof; and
1.7 is a bottom plan view thereof.
The portions of the rice cooker highlighted in yellow are included for the purpose of illustrating unclaimed portions of the rice cooker and form no part of the claimed design.