Koichi Sato was active in the 1950s as a commercial photographer. Some of the subjects he specialized in included fashion and tourism photography as can be seen here.

 
Image: apple industry promotion photo.
Item #: APPW-046
Artist: Koichi Sato
Date: 1957
Price: 50,000 JY
Description: gelatin silver print.
Image: bathing beauty in straw hat.
Item #: APPW-048
Artist: Koichi Sato
Date: 1957
Price: 60,000 JY
Description: gelatin silver print.
Image: apple industry promotion photo.
Item #: APPW-071
Artist: Koichi Sato
Date: 1957
Price: 45,000 JY
Description: gelatin silver print.
Image: Atami Hotel with cherry blossoms in springtime.
Item #: APPW-052
Artist: Koichi Sato
Date: 1957
Price: 60,000 JY
Description: gelatin silver print.
Image: on the mountain trail, Nagano Prefecture
Item #: APPW-053
Artist: Koichi Sato
Date: 1957
Price: 45,000 JY
Description: gelatin silver print.
Image: camera picnic, Tokyo.
Item #: APPW-070
Artist: Koichi Sato
Date: 1950s
Price: 45,000 JY
Description: gelatin silver print