Hanko (Seal) Day

What Is Hanko Day?

August 5th is "Hanko Day." Established by the All Japan Seal Industry Association, this day comes from a wordplay (goroawase) where 8 and 5 read as "ha-n-ko", sounding like the Japanese word for seal/stamp ("hanko"). The day aims to promote the culture of personal seals and spread accurate knowledge about them.

Why Is August 5th "Hanko Day"?

The hanko (personal seal/stamp), deeply rooted in Japanese daily life, was given an easy-to-remember date through wordplay—8 and 5 sounding like "ha-n-ko." The day serves as an opportunity to reflect on the role and culture surrounding these seals.

• Wordplay: 8 ("ha") + 5 ("n-ko") sounds like "hanko."
• Promoting seal culture: To spread proper usage and historical knowledge.
• Part of daily life: Essential for contracts, official filings, and identity verification.

Types of Hanko

In Japan, different types of seals are used depending on the purpose.

• Jitsuin (registered seal): The most important seal, registered with the local municipal office.
• Bank seal: Used for opening bank accounts and conducting transactions.
• Mitomein (everyday seal): Used for receiving deliveries and simple administrative procedures.
• Shachihata: A self-inking stamp type, not recognized as an official seal.

Trivia About Hanko Day

• A uniquely Japanese culture: Few countries have a seal culture as deeply woven into daily life as Japan's.
• The beauty of seal impressions: Like calligraphy, seal engraving is valued as a traditional craft.
• Coexisting with digitalization: Even as electronic signatures spread, hanko culture remains resilient.
• Auspicious materials: Materials like black buffalo horn, boxwood, and titanium each carry their own meaning.

Ways to Enjoy Hanko Day

• Review your seals and organize the ones you actually need.
• Consider getting a new registered seal or bank seal made.
• Visit a seal shop to see craftsmen at work.
• Look into the history of seal culture.

The Tradition and Trust Carried in a Small Seal Impression

August 5th's "Hanko Day" is an opportunity to reconsider the value of the seals we use every day without much thought. Learning about the craftsmanship and cultural background behind them can make hanko feel more meaningful and special.