Surname Hasegawa; personal names Naraya Bunkichi and Naraya Tokubei; first a pupil of the Shijô painter Ueda Kôchô, later of the Edo artist Utagawa Kunisada, and Shigeharu and Sadamasu [Kunimasu] in Osaka; address in Osaka Andôjimachi Naniwabachisuji and Horie Ichinogawa; adopted briefly by the publisher Tenmaya Kihei (taking the personal name Senzô); also closely linked with Hirosada, but apparently not as a pupil.
A prolific artist by the 1840s; beside theatrical portraits, he later designed kachô-e and fûkei-ga (including small-format copies of designs by the Edo artist Hiroshige).
Pupils included Sadamasa; Sadaharu; Nobuhiro; Konobu I; Konobu II.
* Note on the Konobu geimei: Beginning with Sadanobu II, artists of the Hasegawa lineage all began their careers with the geimei Konobu, as follows:
- Sadanobu II started as Konobu I, working in a style much like his father, Sadanobu I.
- Konobu II, younger brother of Konobu I, designed very few works and died in 1886 at age 20, never taking the Sadanobu geimei.
- Sadanobu III (1881-1963) began as Konobu III, principally in the shin hanga manner.
- Sadanobu IV (1914-1999), son of Sadanobu III, started as Konobu IV, continuing in the shin hanga-style.
- Konobu V (born 1946), daughter of Sadanobu IV, worked as Konobu V until she ascended to the Sadanobu geimei.