I searched for trademarks on rice. I found a registered trademark on the packaging of “Koshihikari”.
It seems that Koshihikari rice from Niigata is milled in Aichi prefecture.
The character trademark of “パールライス(Pearl Rice)” was registered on June 10, 1976 as Japanese trademark registration No. 1204268 of the National Federation of Agricultural Cooperative Associations.
The combined trademark of the letters and figurative elements of “Pearl Rice” was registered on August 11, 2020 as Japanese trademark registration No. 6278960 of the National Federation of Agricultural Cooperative Associations.
The “MOG” trademark was registered on May 22, 2009 as Japanese trademark registration No. 5231789 of the Aichi Prefectural Federation of Economic and Agricultural Cooperatives.
The trademark “日本全国よりすぐり。＼お米の国から(Highly selected from all over Japan, the country of rice)” was registered on February 25, 2020 as Japanese trademark registration No. 6229072 of the Aichi Prefectural Federation of Economic and Agricultural Cooperatives.
Even if the package design does not mention it as a registered trademark, I thought that many brands, graphics, and catchphrases were registered as trademarks.
(Raspberry)