Japan, Tokyo Weekly Tech Event Digest [`25 Oct 27 - Nov 2]

Hello, tech and startup enthusiasts! Hope you’re having a great week. Here’s a list of upcoming tech events in Japan for the week of October 27 - November 2. Whether you’re into coding, AI, startups, or just looking to network, there’s something for everyone. Check out the details below and mark your calendars!

Events

Monday, October 27

• JJUG Night Seminar: Getting Started with Jakarta EE and New Features | 🕐 19:00 | Red Hat, Inc., Tokyo | 🇯🇵 | 🔗Link: This seminar discusses the current state of Jakarta EE, including its resurgence with versions 10 and 11, and the upcoming version 12. It covers how to get started with Jakarta EE and explores new features like Jakarta Data. Suitable for both new and experienced server-side Java developers.

• Sendagaya.rb 509 | 🕐 21:00 | Online | 🇯🇵 | 🔗Link: A casual community meetup for people interested in Ruby, Rails, and related technologies. It is a place to discuss hot topics, ask questions, or work on personal projects. Beginners are welcome to join.

Tuesday, October 28

• Weekly Lunch @ TiB | 🕐 11:30 | Tokyo Innovation Base, Tokyo | 🇬🇧🇯🇵 | 🔗Link: Weekly startup lunch networking in Tokyo. Entrepreneurs, investors, and enthusiasts connect over lunch. Bring your own or buy from food trucks. Casual conversations and discussions.

• Startup Ecosystem Trend Survey 2025 Review | 🕐 16:00 | Tokyo Innovation Base | 🇯🇵 | 🔗Link: This event reviews the results of the Startup Ecosystem Trend Survey 2025, based on a survey of about 300 companies. Experts will discuss the current challenges facing startups and how the situation has changed from the previous year. Detailed data will be revealed at the event.

• CVC in Japan: Connecting Startups with Corporate Innovation & Trends | 🕐 18:00 | Tokyo Innovation Base | 🇬🇧 | 🔗Link: This event explores Corporate Venture Capital (CVC) in Japan, connecting startups with corporate investors. Experts will discuss how startups can effectively engage with corporations, what investors seek in founders, and how collaboration can drive long-term growth and innovation in Japan’s corporate landscape.

Wednesday, October 29

• Yokohama Startup Lunch | 🕐 11:30 | Tech Hub Yokohama | 🇬🇧 | 🔗Link: A networking event bringing together entrepreneurs, innovators, and professionals to share ideas, build connections, and explore opportunities within Yokohama’s dynamic startup ecosystem. Engage in inspiring conversations, gain insights from speakers, and expand your professional network. Lunch is not provided.

• Shibuya Public Event | 🕕 16:00 | Shibuya Startup Support Space | 🇬🇧🇯🇵 | 🔗Link: Networking event hosted by Shibuya Startup Support, providing tools and connections for startups to grow.

• Energy x AI | 🕐 17:00 | Sakura Deeptech Shibuya (sds) | 🇬🇧 | 🔗Link: An event exploring the intersection of artificial intelligence and energy innovation. It features an AI x Energy panel session, startup pitches, and networking. Co-hosted by Lifetime Ventures, Tokyo AI, Scrum Ventures, and Investor for Climate.

• Pitch & Connect | 🕐 19:00 | Online | 🇬🇧 | 🔗Link: An online session for founders to practice pitching, receive valuable feedback, and connect with other entrepreneurs. The event includes 5-minute pitches, Q&A, and an open networking session. It is ideal for early-stage founders, aspiring entrepreneurs, and investors.

• Open Source 101: practice your first OSS contribution | 🕐 19:00 | Le Wagon Tokyo - Coding Bootcamp | 🇬🇧 | 🔗Link: A free, hands-on workshop for developers comfortable with Git/GitHub to learn the fundamentals of contributing to open source software (OSS). Participants will practice the basic workflow of OSS contribution, from creating issues to opening pull requests. Laptops are required.

Thursday, October 30

• THE CHAIN | 🕐 16:00 | Bellesalle Hanzomon | 🇯🇵 | 🔗Link: A meetup event by Canal Ventures for CVCs, business companies, and VCs to connect with partners and foster new challenges. The event will feature pitches from VCs, providing a platform for information exchange to drive open innovation and new business development.

• Thursday Gathering | 🕐 16:00 | Cic Tokyo | 🇯🇵🇬🇧 | 🔗Link: A weekly gathering for innovators, entrepreneurs, and community members to connect, learn, and share. The event features various sessions and provides opportunities for networking and collaboration within the innovation ecosystem.

• Responsible AI: Investor Perspectives | 🕐 18:30 | Minato City, Tokyo | 🇬🇧🇯🇵 | 🔗Link: A session on Responsible AI from the perspective of local and global investors. A panel will discuss ‘The AI Conundrum,’ addressing how to ensure AI investments are financially prudent and socially responsible, and the issues surrounding the AI boom in venture capital.

• A11yTO Conference 2025 & Networking/Socializing | 🕐 19:00 | Kinto Technologies | 🇬🇧🇯🇵 | 🔗Link: An in-person event to discuss accessibility, featuring a report from the ‘A11yTO Conference 2025’ in Toronto. This gathering offers a unique opportunity for networking and sharing experiences. The event will be held in both Japanese and English, with real-time captions available.

• Design Review Evening | 🕐 19:00 | Shinjuku Nomura Building, Tokyo | 🇬🇧🇯🇵 | 🔗Link: A friendly design review session for designers, researchers, and product creators to get feedback on projects or portfolios. The event features live design reviews followed by small group discussions, providing an opportunity to practice presentation skills, network, and learn from others in the community.

Friday, October 31

• Explainable AI Team Online Seminar | 🕐 11:00 | Online | 🇯🇵 | 🔗Link: This seminar explores enhancing legal document processing using Graph Attention Networks and Personalized PageRank. The research demonstrates how these methods can improve language model performance in understanding legal text, achieving state-of-the-art results on the LexGLUE benchmark without additional fine-tuning.

• RIKEN AIP Team Results Briefing | 🕐 13:20 | Keio University, Mita Campus | 🇯🇵 | 🔗Link: This event marks the 10th year of the RIKEN Center for Advanced Intelligence Project (AIP). Researchers from the Economics and Management Information Fusion Analysis Team will present project results and discuss future developments.

• Co-Founder CONNECT - Antler Residency in Japan | 🕐 17:00 | Antler In Japan, Tokyo | 🇬🇧🇯🇵 | 🔗Link: An exclusive matchmaking event for entrepreneurs seeking co-founders. This is a chance to meet like-minded innovators from the Antler Residency in Japan, a cohort selected from the top 7% of applicants. Connect, build relationships, and launch successful collaborations.

• Kansai Deeptech Meetup vol.3: The Future Realized by Conductive Enzymes | 🕐 18:30 | Muic Kansai | 🇯🇵 | 🔗Link: This event features Mr. Matsumoto, founder of BioSpark, discussing ‘conductive enzymes’ and their future applications from bio-manufacturing to healthcare. It’s a valuable opportunity to hear about this core technology before the company’s official launch. Open to all interested parties, including business professionals, researchers, and students.

• Build your first chatbot with AI | 🕐 19:00 | Online | 🇬🇧 | 🔗Link: Join an interactive online workshop to design, build, and launch your first AI-powered chatbot, even with no prior coding experience. Learn design basics, prompt engineering, and how to use modern AI tools to create a working prototype from concept in a single session.

Saturday, November 1

• Daikanyama Morning Code | 🕐 09:00 | Dean & Deluca | 🇬🇧🇯🇵 | 🔗Link: A meetup for individuals interested in code, web development, design, cloud, blockchain, or AI. All skill levels are welcome. Participants are encouraged to bring their laptops to discuss current projects, share ideas, and learn from others in the tech community.

Sunday, November 2

• Digital Nomads Chill Out at Food Hall in Nihonbashi | 🕐 18:00 | Commissary Nihonbashi | 🇬🇧 | 🔗Link: A relaxed gathering for digital nomads, expats, and internationally-minded locals to meet and make new connections. Attendees pay for their own food and drinks. The primary language of communication will be English.

Disclaimer

Events above are collected from a variety of online open sources. There might be changes or cancellations. Please check the event page for the most up-to-date information.

If you have an event to share, please let us know - we’d love to include it in our next digest! Mail us at [email protected].