The most representative circle-diamond trademark among Japanese brands is the TOYOTA logo of Toyota Motor Corporation. The TOYOTA logo consists of three circled diamonds, representing "customer satisfaction", "quality" and "technology" respectively, symbolizing Toyota's brand philosophy.

In addition to Toyota Motor, there are many other brands that also use circled rhombus trademarks. For example, Panasonic, a well-known Japanese home appliance brand, has a green circled rhombus as its trademark, which represents "environmental protection" and "sustainable development" and the concept of "energy saving"; in addition, the famous Japanese auto parts manufacturer Hitachi's trademark is a red circle diamond, symbolizing the concepts of "quality", "reliability" and "innovation".