# Week of Mon, May 18, 2026 · JapanTech

May 18 – May 24 (JST). Page: https://japantech.info/weeks/2026-W21/

## Mon, May 18, 2026

- [Tech Brunch Event](https://japantech.info/events/meetup-314685453/): Mon, May 18, 2026 07:45 JST, Hotel Metropolitan Edmont Tokyo, 3-10-8 Iidabashi, Chiyoda-ku,. Small brunch meetup at a Iidabashi hotel for founders and engineers swapping early user acquisition stories.
- [Sendagaya.rb #526](https://japantech.info/events/doorkeeper-196983/): Mon, May 18, 2026 21:00 JST, Online. Western Tokyo's regional Rubyist community runs its online meetup with talk on RubyKaigi takeaways, dev questions, REST, and OpenID Connect.

## Tue, May 19, 2026

- [Hot & spaCy: A Brunch for NLP Enthusiasts](https://japantech.info/events/meetup-314685462/): Tue, May 19, 2026 07:45 JST, Hotel Metropolitan Edmont Tokyo, 3-10-8 Iidabashi, Chiyoda-ku,. Small brunch meetup in Iidabashi discussing NLP foundations, prompt engineering, and the broader language-processing ecosystem.
- [Tokyo Weekly Lunch](https://japantech.info/events/meetup-sxwcxtyjchbzb/): Tue, May 19, 2026 12:00 JST, Tokyo Station City Sapia Tower, 1-7-12 Marunouchi, Chiyoda-ku, Tokyo 100-0005. Weekly Tuesday lunch meetup for Tokyo's startup community at Sapia Tower in Marunouchi, no pitches, just conversation.
- [HN Tokyo Meetup #125](https://japantech.info/events/doorkeeper-196855/): Tue, May 19, 2026 18:30 JST, TENCUPS, 〒150-0002  東京都渋谷区 渋谷 3-26-21. Casual #125 edition of HN Tokyo's monthly social for founders and engineers, with open-floor pitches and demos.
- [Weekly Tuesday Meetup](https://japantech.info/events/meetup-314540282/): Tue, May 19, 2026 19:30 JST, Tokyo HackerSpace, Akasaka, 8 Chome−12−13 アゼリア赤坂 102. Drop-in open house at Tokyo HackerSpace's Akasaka location, 19:30–22:00, for newcomers and regulars to meet and check out the space.

## Wed, May 20, 2026

- [Tech Brunch Event](https://japantech.info/events/meetup-314685466/): Wed, May 20, 2026 07:45 JST, Hotel Metropolitan Edmont Tokyo, 3-10-8 Iidabashi, Chiyoda-ku,. A Lisp-focused brunch meetup in Iidabashi with lightning talks, live demos, and discussion on Clojure, Scheme, Racket and friends.
- [AIVP, RIKEN, A*STAR & NTU joint Workshop](https://japantech.info/events/doorkeeper-197020/): Wed, May 20, 2026 10:30 JST, Online. Online joint workshop with AIVP, RIKEN-AIP, A*STAR CFAR, and NTU on optimization, diffusion models, uncertainty, and RL theory.
- [Yokohama Startup Lunch](https://japantech.info/events/meetup-bnpdvtyjchbbc/): Wed, May 20, 2026 11:30 JST, TECH HUB YOKOHAMA, 横浜市西区みなとみらい２丁目２番１号 横浜ランドマークタワー. Monthly midday networking lunch for founders, investors, and engineers at TECH HUB YOKOHAMA in Minato Mirai.
- [Snack and Connect](https://japantech.info/events/gcal-1cqjeihehcok5mht496nifhtmg_20260520T1600/): Wed, May 20, 2026 16:00 JST, Shibuya Startup Support, Japan, 〒150-0011 Tokyo, Shibuya City, Higashi, 1-chōme−29−３ 渋谷Bridge B棟. Weekly drop-in networking at Shibuya Startup Support's Bridge office — meet founders, investors, and the startup-curious over snacks.
- [JichiTIME Meetup with Mibu Town x Toyota City x Kagawa Prefecture](https://japantech.info/events/peatix-4971518/): Wed, May 20, 2026 18:30 JST, Tokyo Innovation Base, 千代田区丸の内３丁目８−３. Meetup featuring co-creation programs from Mibu Town, Toyota City, and Kagawa Prefecture, with a networking session for startups and government.
- [Tokyo Python Lightning Talks](https://japantech.info/events/meetup-314159078/): Wed, May 20, 2026 19:00 JST, Le Wagon Tokyo - Coding Bootcamp, 2 Chome-11-3 Meguro, Meguro City, Tokyo 153-0063, Japan. An anniversary lightning-talk night for Tokyo Pythonistas at Le Wagon Meguro, with open 5-minute slots on any Python topic.
- [THS "Nihongo Night" Open House](https://japantech.info/events/meetup-314557643/): Wed, May 20, 2026 19:30 JST, Tokyo HackerSpace, 赤坂8丁目12−13 アサレアビル102. Japanese-language open house at Tokyo Hackerspace in Akasaka. Drop by, meet members, and see the space.

## Thu, May 21, 2026

- [How to Win Friends and Exit Vim: A Brunch for Vim Users](https://japantech.info/events/meetup-314685469/): Thu, May 21, 2026 07:45 JST, Hotel Metropolitan Edmont Tokyo, 3-10-8 Iidabashi, Chiyoda-ku,. A small Tokyo brunch where Vim, Neovim, and modal-editor users swap .vimrc tips and plugin recommendations over breakfast.
- [Thursday Gathering #382](https://japantech.info/events/gatherus-f4c4f9af-083e-47f4-995e-2ca211b79d9e/): Thu, May 21, 2026 16:00 JST, CIC Tokyo, Toranomon Hills Business Tower 15F, 1 Chome-17-1 Toranomon, Minato City, Tokyo. Weekly bilingual innovation community gathering at CIC Tokyo with in-person and remote participation.

## Fri, May 22, 2026

- [\[Compressed Information Processing Team Seminar\] Geometric Structure of Brain Representation Space and AI Latent Space: Determinants of Brain–AI Integration Performance](https://japantech.info/events/doorkeeper-195810/): Fri, May 22, 2026 11:00 JST, Hybrid. Brain representation space, AI latent space geometry, and the future of Brain–AI integration and medical BMI.
- [\[Computational Learning Theory Team Seminar\] Talks of Dr. Dimitra Tsigkari and Dr. Fion Mc Inerney (Telefonica, Spain)](https://japantech.info/events/doorkeeper-196865/): Fri, May 22, 2026 13:30 JST, Hybrid. Two Telefonica researchers visit RIKEN AIP to talk Split Learning network optimization and non-clashing teaching theory in graphs.
- [NAGOYA CONNÉCT #121](https://japantech.info/events/gatherus-cc03503c-9d3a-4e84-90a3-c8c87bbe5c86/): Fri, May 22, 2026 17:00 JST, Nagono Campus, 2 Chome-14-1, Nagono, Nagoya City, Aichi. Venture Café Tokyo's weekly innovation gathering in Nagoya, with hybrid sessions for founders, engineers, and ecosystem builders.
- [Hardware Startups x Machi-Koba: Breaking Through the Productization Wall with Manufacturing Partnerships](https://japantech.info/events/peatix-4986656/): Fri, May 22, 2026 17:00 JST, Tokyo Innovation Base, 千代田区丸の内３丁目８−３. Free panels and networking at TIB on partnering with Japan's machi-koba to clear the hardware productization wall.
- [TIB Growth Coffee Meetup](https://japantech.info/events/peatix-5004166/): Fri, May 22, 2026 17:00 JST, Tokyo Innovation Base, 千代田区丸の内３丁目８−３. A 45-minute coffee meetup on TIB's 3F where founders, support orgs, and public-sector folks talk flat about taking ventures to the next stage.

## Sat, May 23, 2026

- [Marunouchi Morning Code](https://japantech.info/events/luma-p5tntlm8/): Sat, May 23, 2026 10:00 JST, 千代田区, 東京都. Casual bilingual morning meetup in Marunouchi to chat about code, web, cloud, blockchain, and AI projects.
- [Coffee and Code](https://japantech.info/events/meetup-314826586/): Sat, May 23, 2026 10:00 JST, Starbucks in Roppongi Hills Lobby (THERE ARE TWO, PLEASE READ BELOW), 六本木6−10−1 六本木ヒルズ森タワー 1F. Casual weekend coworking meetup at a Roppongi Hills Starbucks for coders and IT folks of any level.
- [Tech networking meetup in Shibuya #13](https://japantech.info/events/meetup-314639496/): Sat, May 23, 2026 18:00 JST, Sam’s Bar Tokyo, 25-7 Maruyamacho (4F) Shibuya Tokyo , 4th Floor. Casual Shibuya bar meetup for IT professionals to network across engineering disciplines and career stages.

## Sun, May 24, 2026

- [\[Beginner\] Intro to Google Antigravity — Build Your Own App with a Next-Gen AI Agent](https://japantech.info/events/peatix-4966701/): Sun, May 24, 2026 12:00 JST, Tokyo Innovation Base, 千代田区丸の内３丁目８−３. Beginner hands-on with Google Antigravity — build a working app from scratch alongside a next-gen AI coding agent.
- [Haskell-jp Mokumoku-kai #344 @ Online](https://japantech.info/events/connpass-394311/): Sun, May 24, 2026 13:00 JST, Haskell-jp Slack Workspace. Haskell-jp's 344th mokumoku-kai: a relaxed online session where participants quietly work on their own Haskell code together over Slack.
- [Designing Businesses That Monetize Your Mission with Social Impact Pros — taliki x TIB STUDIO Session & Workshop](https://japantech.info/events/peatix-4960515/): Sun, May 24, 2026 13:00 JST, Tokyo Innovation Base, 千代田区丸の内３丁目８−３. Session and workshop on designing businesses that balance social impact with monetization, with taliki's Harada.
- [Where Is Crypto Heading? Real Talk from DeFi and Exchanges, OrbsCafe Tokyo Special 2026](https://japantech.info/events/luma-p2ec36vl/): Sun, May 24, 2026 14:00 JST, Shibuya, Japan. Ebisu study session and networking with DeFi leads and Japanese exchange execs on where crypto is heading, timed to the Orbs team visit.
- [Orbs Japan Meetup 2026](https://japantech.info/events/luma-5x2zytq6/): Sun, May 24, 2026 17:30 JST, Shibuya, Japan. Annual Tokyo meetup with the visiting Orbs team for casual talk on DeFi, trading, and stablecoins in Shibuya.