Experience the Sounds of Bookbinding — SUMIFA 2025
Sumida’s Local Industries
Sumida is a district where small factories gather and thrive.
Leatherwork, metal processing, soap manufacturing, printing, paper processing—
many different crafts and industries have grown here,
supported by skilled artisans working side by side.
It is precisely this closeness that allows techniques to intersect,
creating new value again and again.
This is Sumida’s strength—and its charm.
SUMIFA — Connecting Town, People, and Work through “Co-Creation”
SUMIFA is an event that connects local industries and the people of Sumida.
The theme for 2025 is “Co-Creation.”
・We want more people to see our skills
・We want children to learn about our work
・We want to meet future collaborators
・We want to connect with our local community
For three days, companies open their factories to the public and work together to co-create the future of this town.
Among them is ITO BINDERY.
ITO BINDERY — Founded in 1938 in Sumida
Founded in 1938 in the Honjo area of Sumida, ITO BINDERY has specialized in binding catalogs, booklets, and a wide range of commercial printed materials for over 80 years.
Cutting / Binding / Trimming
We take great pride in performing
these familiar processes with more than familiar precision.
Product Highlight — The Craft of the Memo Block
One of our signature items is the Memo Block.
Every sheet features a clean cut edge, and peeling a sheet away feels smooth and satisfying.
Our expertise in bookbinding—
cutting accuracy, paper selection, proper glue formulation—
is poured into the details, giving the Memo Block both comfort in writing and a beautiful presence on any desk.
As a tool used every day to support your thinking, it must embody both functionality and refined design.
What You Can Experience at SUMIFA 2025
■ Factory Tour（Free / Reservation required）
Discover the “sounds” and movements of real bookbinding machines
50 min / Elementary school students and above (with guardian)
■ Notebook Workshop（500 JPY tax included / Reservation required）
Fold it, step on it!? Create a 64-page notebook by hand
■ SHOP
Explore the full lineup of ITO BINDERY original stationery available only at our factory shop
Access：2-16-9 Honjo, Sumida-ku, Tokyo
Open：10：00～17：00
（Break Time 12：00～12：50）
Last but Not Least
Amid the diverse crafts that thrive in Sumida,
ITO BINDERY is proud to be a part of the district’s paper-craft tradition.
Born in this town,
refined in this town,
and into the future together with this town.
At SUMIFA 2025, experience the world of paper and its transformation into products.
Beyond the door lies a world you’ve never seen before.