Your search has yeild 3 works by Kobayashi Kokei.
Kobayashi Kokei 1883-1957

Iris Laevigata
c. 1935 (Showa 10) Color on silk, hanging scroll

Hydrangea
c. 1937 (Showa 12) Color on silk, hanging scroll

Rabbit
Showa Period (20th c.) Color on paper, hanging scroll