The Hosomi collection includes almost all areas of Japanese art: paintings by Rinpa (a school of Japanese painting originated by KORIN Ogata early in Edo Period), Jakuchu ITO and other painters of the Edo Period; Buddhist paintings, Buddha images and Buddhist altar fittings from the Heian Period; artifacts unearthed from ancient tumuli; and it also includes around two dozen Important Cultural Properties, plus many items certified as important art works.
細見家の収集品は、琳派や伊藤若冲らなど江戸時代の絵画や平安時代の仏画をはじめ、仏像、仏具などから古墳出土品に至るまで、日本美術のほとんどの分野にわたり、重要文化財20数件、重要美術品認定物件を多数含む。