ABOUT FILAMENT
We are open in Nishikasai from 5:00 to 23:00. (Staffed hours are 10:00–19:00.)
People come here to work, study, or relax, sharing the same place and time.
This page explains what kind of place filament is and what matters to us.
filament did not begin as a cafe. This space was originally a members-only workspace, but the business struggled and eventually closed.
The carefully designed interior remained. The counter and tabletops were made from reclaimed scaffolding boards, and every piece of furniture and decor was custom-made. Morning light pours through the large windows. “It would be a shame to lose this place.” That thought became the starting point for filament.
The interior was designed for the former workspace by Ie to Boken (HOUSE&ADVENTURE). Since opening filament, we have repaired the furniture ourselves and added pieces made from reclaimed materials, while preserving the space's original character.
In October 2022, we reopened the space as a cafe. We wanted to turn a members-only place into somewhere anyone could drop in for an hour—whether visiting for the first time, traveling, studying, or stopping by on the way home from work.
filament began not by creating something new, but by opening up something that was already here.
Our logo combines a light bulb and a cup of coffee. It represents our belief that inspiration needs moments of relaxation.
The name filament comes from the fine wire that glows inside an incandescent light bulb. It also expresses our hope that this place will help create connections—between us and our customers, and among customers themselves.
We adopted the following guiding principles on August 23, 2026.
MISSION
To provide Nishikasai with a place that is open to everyone and where ideas can be born.
VISION
To become the first place people think of when they want to work, study, or relax in Nishikasai.
VALUE
We make our systems, shift schedules, and signs ourselves whenever possible. Our access control, payment, private-room reservation, and membership-pause systems were developed in-house. Even when outsourcing is possible, building it ourselves often produces something better suited to this particular place.
For 9 of our 18 opening hours, no staff are present. We believe customers continue to visit during those hours because they trust us. That gives us an even greater responsibility to explain how we think and what we are trying to do. We value our customers' trust and peace of mind.
You are free to bring in food and drinks and to move between seats. We want filament to be a place where you can spend time in your own way and feel like yourself.
filament is in its fourth year, and most people working on the floor are in their 20s and 30s. We do not have decades of accumulated experience. That is why we search for better ways through trial and error. When someone has an idea for a different approach, we try it. We have repeated that process throughout these four years.
At first, we used an outsourced system, but it simply did not fit the realities of the shop floor. We no longer wanted to say, “It cannot be helped; that is just how the system works.” So even when it takes the longer route, we try to build things ourselves. Our access-control app, signs, menus, and 22-language website are all made in-house wherever possible. We still have many ideas left to try.
“A place where inspiration takes shape.” These words are not only for those who visit us, but also for ourselves.
There are many places where people can concentrate. But good work and effective study are hard to sustain if you remain tense the entire time.
Make a cup of coffee. Look out the window. Talk with someone for a moment. Moments like these help you focus again. Moving between concentration and relaxation can bring ideas that had not occurred to you before. That is why we value both.
That is why you may move between seats, and why we do not discourage reading, conversation, or even a short nap. Calls are also allowed in designated areas. We continually consider how to preserve quiet without making the space feel restrictive.
If a customer leaves thinking, “I made progress today,” “I finished my report,” “I organized my thoughts,” or simply “I feel refreshed,” then this place has fulfilled its role.
A little more positive than yesterday. We believe those small gains can change how people use their time.
Here are five qualities that the labels “cafe” and “coworking space” alone do not fully capture.
01
We are three minutes on foot from Nishikasai Station. Rather than being hidden on an upper floor, the cafe is at street level, with terrace seating facing the road. About 40% of first-time customers simply notice us while passing by and decide to come in.
02
It is open 18 hours a day, and staff are on site from 10:00 to 19:00. The remaining nine hours are self-service with smart locks and an app.
03
We offer seven monthly plans, including morning-only, weekday-only, afternoon-and-evening, weekend-and-holiday, student, and senior options. That is a more detailed selection than the three to five plans typically offered by similar nearby facilities.
About half of our members choose a time-limited plan rather than all-day access. The idea is for the cafe to fit each person's routine, rather than asking people to adapt their lives to the cafe. Non-members can, of course, still use the space by the hour.
04
Nishikasai is home to many international residents; Edogawa has the largest foreign-resident population of Tokyo's 23 wards. The area also welcomes overseas visitors traveling for tourism or business.
This website is available in 22 languages, our access-control app supports 14, and every filament staff member can assist customers in English.
05
We now develop most of what we need to operate the cafe ourselves: entry and exit management, shift scheduling and staff skill tracking, inventory management, in-store signage, and this website. Building these tools in-house instead of piecing together outside services lets us address problems discovered on the floor within the same week.
Our manager also enjoys making and repairing some of the cafe's furniture and always has a project underway. This is what “DIY,” one of our values, means in practice.
We brew coffee with commercial Nespresso machines, which leave an aluminum capsule after each cup.
Every capsule used at filament is returned through Nespresso's recycling program.
The aluminum is recycled, while the used coffee grounds are composted and returned to the soil.
This is about more than reducing waste. We believe that if we serve the coffee, we should also take responsibility for what is left behind.
*We currently collect only capsules used at filament and cannot accept capsules from customers' homes.
vivid update Inc. was established in September 2022, and filament held its pre-opening that October. Over the past four years we have adapted to how people use the space: opening on Sundays, adding takeaway coffee, hosting jewelry exhibitions and practical sales and training run by a confectionery vocational school, expanding monthly plans and multi-use passes, introducing app-based access control, and extending self-service operation into the evening.
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FOR PRESS
We welcome inquiries from people interested in learning about or featuring filament. For interviews, photography, contributed articles, or case studies, please contact us at the address below. Store manager Yosuke Enoki will respond.
Press and publication contact
Please include “Press inquiry” in the subject line.
For urgent inquiries, call 03-6808-5511 from 10:00 to 19:00.
