Hajime Sorayama

Hajime Sorayama was born on 22 February 1947 in Imabari, Ehime Prefecture, Japan, and received his early education at Imabari Kita High School. He went on to a Christian university in Shikoku, commonly identified as Shikoku Gakuin University, where he studied English literature and Ancient Greek for roughly a year and a half. During that time he founded a pin-up magazine called Pink Journal, an episode that, by his own account in later interviews, led to his leaving the university without completing a degree; some gallery biographies instead describe him as having graduated in 1968, so the two accounts should be read with that conflict in mind.

He then moved to Tokyo to study commercial art at what is known variously as Chuo Art School or Chubi Central Art School, graduating with a degree in illustration around 1968 to 1969, depending on the source. He worked in advertising before becoming a freelance illustrator, and produced his first drawings of the robot figure that would define his career in the late 1970s. The 1983 art book "Sexy Robot" established the series that remains his signature subject.

In 1999, Sorayama collaborated with Sony on the conceptual design of the AIBO robot dog, work that won Japan's Good Design Award and the Media Arts Festival Grand Prize that year. His imagery has since crossed into fashion and pop culture, including a twelve-meter robot sculpture created for Dior Homme, and new sculptures modeled on Motoko Kusanagi tied to the Ghost in the Shell franchise, unveiled in 2026. He continues to live and work in Japan, and NANZUKA in Tokyo organized "Sorayama: Light, Reflection, Transparency," described as the largest retrospective of his career, at Creative Museum Tokyo in 2026.

Sorayama's critical reputation rests on the durability and reach of a single body of imagery: the fusion of erotic pin-up conventions with chrome robotic anatomy, rendered in an airbrush technique precise enough that critics and curators alike describe it as photographic. Curatorial and institutional attention has increasingly framed him as an artist who crosses cleanly between commercial design, fashion, and the museum, a status reinforced by the inclusion of his AIBO robot design in the permanent collections of the Museum of Modern Art and the Smithsonian Institution, and by the scale of his 2026 Tokyo retrospective.

Sorayama's auction record is Sexy Robot, Life Size Seating Model B (2017), which sold for HKD 5,750,000 (about USD 737,804) at Christie's Hong Kong in May 2021, a result Christie's describes as a world auction record for the artist. His market since has stayed active but well below that peak: a Phillips Hong Kong sale on 12 December 2025 saw "Untitled_Sexy Robot type II floating" (2022) sell as the star lot for HKD 2,064,000 (about USD 265,300). Results across Christie's, Phillips, and Heritage span a wide range, from smaller collectible sculptures and prints to unique large-scale works, which makes his market considerably more varied in scale and price than that of a painter working in a single format.

Sorayama has no published catalogue raisonne, and as a living artist there is no estate; verification runs through NANZUKA in Tokyo, which organizes his major exhibitions, and through his own studio. His market covers a genuinely wide range of object types, from smaller design-adjacent multiples to unique sculptures, so a single auction result should be read against the specific work's scale and edition rather than treated as representative of the whole market. His growing footprint in institutional collections, including the Museum of Modern Art and the Smithsonian Institution, together with the 2026 Tokyo retrospective, are the clearest signals of a market still building toward fuller art-historical recognition.