A series of 12 new definitive stamps issued on 2nd February 2015.
The new 1-yen stamp has continued to depict Maejima-Hisoka, known as "Father of the Postal System," who founded the Japanese postal service. The 500-yen stamp (18.5 x 22.5 mm) shows the Oirase rapids mountain stream in the Towada-Hachimantai National Park and the 1000-yen stamp (22.5 × 33.0 mm) depicts Mt. Fuji "Fujizu by Tanomura Chikuden 1777 - 1835".
2 new miniaturesheets (107.5 x 76.5mm) were issued for the definitive stamp booklet to coincide with the definitive stamps’ design unification, which had done for the first time in 17 years since 1998. These miniaturesheets were not going to be sold separately.
The miniaturesheet "2-yen, 3-yen" contains two stamps, ¥2 Mountain hare (issue date 2014.03.03) and ¥3 Tamias sibiricus (issue date 2015.02.02) and the miniaturesheet "1000- yen (Fujizu), 1000-yen (Matsutakazu)" contains ¥1000 "Matsutakazu" (issue date 1996.03.28) and ¥1000 "Fujizu" (issue date 2015.02.02).
The stamps of the second sheet (with Mount Fuji) were imperforate and each sheet is marked with serial numbers.