Not until 2016, would the bookcase be produced industrially, in a limited series of 100 numbered specimens, in the context of the Molteni Heritage Collection with reference number MHC.2. Itoh returned to Italy in April 1960 and stayed until May 1961 when he worked in Giò Ponti’s studio. From Cantù Itoh returned to Japan and completed his master’s in construction engineering.
He began working with Toshiro Yamashita, known in his country for having designed and built the first skyscraper on Japanese soil, in Tokyo, namely the Kasumigaseki Building (1960 design 1964 end of construction). Itoh was in the team of project engineers and played an active role, temporarily leaving design to one side. Sadly, Itoh was never to see the Kasumigaseki completed.
On 9 November 1963 he fell victim to a serious railway accident that occurred between Tokyo and Zushi- Hayama, a seaside location where Itoh loved to cultivate his passion for sailing, at the local Yacht Club. He thus died unexpectedly at the age of just 30, one of modern Japan’s most promising architect designers.