[Makuake Crowdfunding: 500 Backers Achieved] My Number Card Exclusive Case. Ultra-thin, Ultra-light, High-purity Titanium. Trusted Tsubame-Sanjo, Made in Japan
Thin, light, and easy to retrieve. Made with highly durable titanium, this lifelong item beautifully protects your important My Number Card. Designed to prevent skimming, scratches, bending, and dirt, allowing for smart portability.
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- 📰 Published: April 1, 2026 at 20:00

■No more bulky wallets. Comfortable design: ultra-thin 2mm, ultra-light 15g
This product is a My Number Card exclusive case designed to be "thin, light, easy to retrieve, and beautifully protect your important card."
It uses highly durable titanium material to firmly protect your card from scratches, bending, and dirt. Its slim design means it won't bulk up your wallet, allowing for smart portability. We focused on ease of use, ensuring smooth retrieval when presenting the card at reception or other situations.
No troublesome maintenance is required. If it gets dirty, simply wipe it lightly with a soft cloth to keep it clean and use it for a long time.




The My Number Card is increasingly used as an identification document for medical institutions, pharmacies, administrative procedures, and more.
However, when placed in a wallet, it's hard to find, bulks up, you worry about bending or scratches, and cases can be cumbersome.
Are you feeling a little inconvenience regarding portability and information leakage countermeasures?





To solve these inconveniences, the titanium My Number Card exclusive case was born.

What we sought was to be thin, light, strong, and stylish. And to reliably reduce risks.

The main unit weighs only 15g. Its lightness is barely noticeable when placed in a wallet or inner pocket, reducing the hassle of carrying it around.




Utilizing titanium's radio wave shielding properties and strength, it achieves both skimming prevention and portability.

It features a special "clear baked coating" that resists fingerprints and dirt, making it easy to maintain a clean appearance.

Furthermore, a 1.5mm margin allows for smooth card insertion.

With a slide window, you can smartly present only the necessary information.
FAQ
What material is this case made of?
It is made of high-purity titanium, manufactured in the trusted Tsubame-Sanjo region. It is ultra-thin at 2mm and ultra-light at 15g.
Does it have skimming prevention?
Yes, it is designed to prevent skimming by utilizing titanium's radio wave shielding properties.
Is it easy to maintain?
Yes, it features a clear baked coating that resists fingerprints and dirt, making it easy to keep clean with a light wipe.