Tech Brunch Event
Early brunch in Iidabashi on computational humor: NLP and comedy, humor theory, joke-generator demos, and humor datasets.
In person · Kanto (Tokyo) · EN
Where Japan's entrepreneurs & engineers meet.
This week·Sep 28 – Oct 4 · 38events
Mon, September 28, 2026 past
3events
Invisible bias: effects on evaluation(Talk by Noa Garcia, The University of Osaka)
RIKEN AIP online talk by Noa Garcia on hidden biases that skew computer vision benchmark evaluation.
Online · EN
Sendagaya.rb #541
Online Ruby and Rails meetup on Google Meet: RubyKaigi topics, dev troubleshooting, and reading guides together. Starts 21:00.
Online · JA
Tue, September 29, 2026 past
6events
Tech Brunch Event
An early-morning small-group brunch in Iidabashi for engineers and designers to share open source projects, tools, and licensing experiences.
In person · Kanto (Tokyo) · EN
High-Dimensional Structure Theory Team Seminar (Talk by Christophe Quentin Valvason, University of Geneva)
RIKEN AIP online seminar: optimal transport methods for building nonparametric confidence intervals that hold up in small samples.
Online · EN
Tokyo Metropolitan Government Program | TIB CATAPULT & TIB Open Innovation Adoption and Promotion Program KICK OFF EVENT
Joint kickoff of Tokyo's TIB open innovation program and TIB CATAPULT: 15 large companies and 6 new clusters present, then networking.
In person · Kanto (Tokyo) · JA
React Native Meetup #25 @mybest
The 25th React Native lightning-talk meetup, held at mybest in Tsukiji, with talks in Japanese and an after party.
In person · Other · JA
Journey to the Centre of the LLM
Tokyo Tech Talks #8: independent researcher Larry Richards explores LLM internals through mechanistic interpretability experiments.
In person · Kanto (Tokyo) · EN
Weekly Tuesday Meetup
Weekly open house at Tokyo Hackerspace in Akasaka: meet members, see the space, and use tools as needed.
In person · Kanto (Tokyo) · EN
Wed, September 30, 2026 past
13events
Tech Brunch Event
A small-group breakfast in Iidabashi on pure mathematics and its links to programming, sharing favorite theorems and proofs.
In person · Kanto (Tokyo) · EN
Lunchtime Study Group: Learning Global UX
A weekly 30-minute Wednesday lunchtime online study group reading The UX Collective articles through NotebookLM videos.
Online · JA
ITTC in Optimal Ageing and RIKEN AIP Joint Hybrid Seminar on Human-Robot Interaction and Digital Health in Dementia Care: Joint Insights from Australia and Japan
Monash and RIKEN AIP researchers on robots, AI and digital health for dementia care in Japan and Australia.
Online · EN
Global Startup Ecosystem Meeting - Special Edition
Embassies and trade agencies present overseas expansion programs for Japanese startups, followed by one-on-one consultations and networking.
In person · Kanto (Tokyo) · JA
[Explainable AI Team Seminar] NLP for Mental Health: Risk, Promise, Responsibility by Prof. Irina Gurevych
Online RIKEN AIP seminar: Prof. Iryna Gurevych on using NLP and LLMs for mental health care, with clinical grounding and responsible evaluation.
Online · EN
YOKOHAMA CONNÉCT #46
Venture Café Yokohama's recurring evening of startup and tech sessions at TECH HUB YOKOHAMA, joinable in person or online.
Hybrid · Kanto (Tokyo) · JA/EN
Snack and Connect
Weekly drop-in startup networking over snacks at ShibuyaBridge in Shibuya, Wednesdays 16:00-18:00, no registration needed.
In person · Kanto (Tokyo) · EN
"IP Owner's Manual (Chizai no Torisetsu®)" Hands-on Workshop for Hardware and Robotics Founders: Turning Technology, Design and Brand into Weapons for Offense and Defense
Hands-on IP strategy workshop for hardware and robotics founders: patents, designs, trademarks and trade secrets. TIB FAB members only.
In person · Kanto (Tokyo) · JA
TIB CXO Lounge ~ A Gathering of Startup CXOs Facing the Hard Things
After-work networking at TIB where startup CXOs candidly share real management challenges like capital policy and team building.
In person · Kanto (Tokyo) · JA
Go Global Hub #1 Discover Global Challenges
Tokyo-backed cross-border co-creation workshop where mixed teams tackle global business challenges, with a keynote by Alex Odajima.
In person · Kanto (Tokyo) · EN
[Pitch Speakers / Audience Wanted!] TIB SANDBOX (Pitch Event) / For Idea- to Early-Stage Startups
Seven idea- to early-stage startups give 3-minute pitches and get live feedback from VC commentators at TIB.
In person · Kanto (Tokyo) · JA
[In person] JJUG Night Seminar: Java 27 Release Event
JJUG night seminar on Java 27: talks on JEPs 527, 531, 532 and 533, from post-quantum TLS to Structured Concurrency. At Findy, Osaki.
In person · Kanto (Tokyo) · JA
THS "Nihongo Night" Open House
Tokyo Hackerspace's Japanese-language open house: drop by the Akasaka space to meet members and see the workshop tools.
In person · Kanto (Tokyo) · JA
Thu, October 1, 2026 past
8events
Tech Brunch Event
A small Lisp-themed brunch in Iidabashi with lightning talks, live demos and discussion on Clojure, Scheme, Racket and other Lisps.
In person · Kanto (Tokyo) · EN
🇯🇵🇺🇸Antler Japan - JPN7 Residency Program | Ask-Me-Anything WEBINAR (Info Session, JP/EN Simultaneous)
A lunchtime online AMA about Antler's JPN7 Residency: who can join, what founders gain, and live Q&A in Japanese and English.
Online · JA/EN
[Explainable AI Team Seminar] Scientific Writing Strategy by Prof. Simone Teufel
Online RIKEN AIP seminar where Cambridge NLP professor Simone Teufel presents a step-by-step method for writing convincing scientific papers.
Online · EN
Thursday Gathering #399
Venture Café Tokyo's weekly Thursday Gathering at CIC Tokyo: talks, sessions, and open networking for the startup scene, in person or online.
Hybrid · Kanto (Tokyo) · JA/EN
Kesennuma | Claude for Business
The first Claude Meetup in Kesennuma, Miyagi: practical knowledge for business owners on using Claude and Claude Code at work.
In person · Tohoku · JA
Gemma Meetup 2026 [Road to DevFest Tokyo #1]
A meetup on Google's open model Gemma, held at the Google Shibuya office as the first in a series leading up to DevFest Tokyo.
In person · Kanto (Tokyo) · JA
ProductTank Tokyo - Monthly Casual
Monthly casual networking evening for product managers and aspiring PMs at TenCups in Shibuya, hosted by ProductTank Tokyo.
In person · Kanto (Tokyo) · JA/EN
Kaigi on Rails 2026 Side Event: Night Music Event Introduction and Roundtable
Online Kaigi on Rails 2026 side event with an introduction to an evening music event and a roundtable.
Online · JA
Fri, October 2, 2026 past
3events
Creative Session: Build & Share
Friday morning laptop co-working for designers and creatives at a café by Jūjō Station, Tokyo.
In person · Kanto (Tokyo) · EN
AM I? — Film Screening & Conversation on AI Consciousness
Screening of the documentary AM I? on AI consciousness, followed by a talk with the director, researcher Cameron Berg and neuroscientist Ryota Kanai.
In person · Kanto (Tokyo) · EN
2600 Meeting
Monthly 2600 hacker meeting of the Tokyo chapter, held in a reserved Kabukicho bar with open conversation about hacking and security.
In person · Kanto (Tokyo) · JA/EN
Sat, October 3, 2026 past
4events
Coffee and Code
A casual Saturday morning coding meetup at the Roppongi Hills Starbucks: bring a laptop, share what you are learning, get help.
In person · Kanto (Tokyo) · EN
Code for Japan Summit 2026
Code for Japan's annual civic tech summit on "Public Sector and AI", bringing officials, engineers and researchers together in Kudan.
In person · Kanto (Tokyo) · JA
OSS Gate Pass 2026 - OSS Gate 10th Anniversary Offline Conference!
OSS Gate's first offline conference for its 10th anniversary, with 10-minute talks from open source contributors across Japan.
In person · Kanto (Tokyo) · JA
Tokyo | Claude Meetup for Healthcare Professionals
Claude community meetup for healthcare professionals in Hamamatsucho, Tokyo: lightning talks on real Claude use cases and discussion.
In person · Kanto (Tokyo) · JA
