- May 23, 2025
<Hokuryu> Development of rice flour doughnuts made with Kurosengoku soybeans by Kazuhiro Ushiro (60) [Hokkaido Shimbun Digital]
Friday, May 23, 2025 On the Hokkaido Shimbun Digital website operated by the Hokkaido Shimbun Press (Sapporo City), an article titled "<Hokuryu> Kurosengoku soybean rice flour doughnut developed by Kazuhiro Ushiro (60)" was published (dated May 22) [...]