These family crests (In Japanese, KAMON) are called 'Meyui Mon' in JAPAN.
Meyui is a white-spotted pattern which modeled the design that is called kanokozome. It was popular in the Kamakura Period (1192 - 1333), and later came to be used in family crests.
|Tilted four-square-eyes in circle||Tilted four-square-eyes in rice cake||Tilted six-square-eyes for the Horio family||Tilted six-squrae-eyes in circle|
Drawing method of Tilted four-square-eyes
This pattern consists of squares with small in the center that look like eyes. It was popular in the Kamakura Period, and later came to be used in family crests. (From 'Family Crests of Japan' ICG Muse, Inc.2001)