HASE Glass Workshop
Clear, light, and quietly expressive.
Clear, light, and quietly expressive. HASE Glass Workshop is based in Sakado, Saitama, creating pieces from heat-resistant glass with a torch, one at a time and without molds. Glass pens sit at the center of the lineup, joined by inks, accessories, and marbles. The workshop also opens for in-person sales on Fridays and Saturdays, giving you a chance to choose a piece by its real-world sparkle and subtle variations.
Why We Love It
A glass pen is fun on its own, but it becomes a ritual when you build a small set. Pick a pen by transparency and color, swap inks to match your mood, and add a marble on your desk to play with light. If you can visit on a Friday or Saturday, comparing pieces in person is the best way to find “your” one.
PROFILE About the Company / Workshop
HASE Glass Workshop is located in Sakado, Saitama. The maker, Naohiro Hasegawa, focuses on the way light moves through glass—clean transparency with a hint of handmade fluctuation. Sales are handled online, with studio sales available on Fridays and Saturdays.
A key piece is the glass pen. Heat-resistant glass is shaped with a torch into a writing tool that feels airy in the hand. Some product pages list concrete size guides (for example, about 140mm in length and about 9mm in writing width), along with warranty notes and tip repair information.
The lineup extends to inks, accessories, and glass marbles. Inks clearly show volume, and sets are also offered. Accessories include pendant pieces made individually with a torch, keeping the same one-by-one approach beyond writing tools.
The main purchase route is the online store, with inquiries handled via email or social DMs. Studio sales hours are posted for those who want to see pieces in person. Overseas shipping is not supported, keeping delivery and service focused on domestic buyers.
Heat-resistant glass, with a crisp transparency
The material is heat-resistant glass, prized for its clarity. Each piece carries tiny differences in tone, bubbles, and lines—small signatures of handwork. On a desk, that clean transparency feels both modern and warm.
Torch-made, one by one, without molds
Pieces are shaped by torchwork rather than molded casting. The form is built through melting and pulling, then refined by hand. The same approach appears in accessories as well, keeping a consistent handmade character throughout.
A lineup that expands your writing ritual
Beyond glass pens, you’ll find inks, accessories, and glass marbles. It’s a small universe around writing—easy to mix, match, and collect. Browsing the categories alone can feel like a short trip.
Studio hours and a clear path for repair inquiries
The studio opens for sales on Fridays and Saturdays. For questions or repairs, contact is handled via email or social DMs. Glass pen listings also mention tip repair guidance, which supports long-term use.
PRODUCTS Featured Products & Services
Contains promotional content
Glass Pen “Enka 2025”
A heat-resistant glass pen. The listing provides a size guide (approx. 140mm length / 9mm writing width), plus warranty and tip repair notes.
Ink “Enka black” (15ml)
A 15ml dye-based ink—an easy starting point for building a writing palette.
Glass Marble “Vortex”
A glass marble around 35mm. A simple desk object that shifts how light looks across your workspace.
Glass Shard Pendant
A torch-made pendant created without molds. Each piece has its own subtle expression.
LINKS Official Links / Social Media
- Official Website https://haseglass.thebase.in/
- Online Shop https://haseglass.thebase.in/
- Contact Form https://thebase.com/inquiry/haseglass-theshop-jp
- X (Official) https://x.com/haseglassworks
- Instagram https://www.instagram.com/haseglassworks/
- LINE https://line.me/R/ti/p/@haseglassworks
- Facebook https://www.facebook.com/haseglass/
- Legal Notice (JP) https://haseglass.thebase.in/p/00003
- Privacy Policy (JP) https://haseglass.thebase.in/p/00002