Soy Bean Paper or Mamenori, are registered trademarks of J-Oil Mills, Inc. The manufacturer produces these thin soybean paper sheets used as a substitute for nori. is used as an alternative to roasted seaweed when making sushi rolls. It can also be used in place of spring roll wrappers or rice paper. The soybean sheets come in a variety of colors including pink, yellow, orange, green and natural color.