# Miyajima Yuji

> Miyajima Yuji is a seed investor at Mobile Factory backing Content and Adult. See 3 investments, round sizes, portfolio and contact details. Updated Aug 2026.

- Type: Angel Investor
- Fund: Mobile Factory
- Location: Tokyo, Japan
- Total investments: 3
- Last investment: Oct 2019
- Lead investor: 33%
- Last updated: Aug 2026
- LinkedIn: https://jp.linkedin.com/in/yujimiyajima

Miyajima Yuji is a Founder & CEO at Mobile Factory.

## Contacts

5 contacts available for Miyajima Yuji: work email, personal email, work phone, personal phone and socials. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-email/miyajima-yuji?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Content | 2 | 67% |
| Adult | 1 | 33% |
| Blockchain | 1 | 33% |
| Consulting | 1 | 33% |
| Product Design | 1 | 33% |

8 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 1 | 33% |
| Angel | 1 | 33% |
| Corporate Round | 1 | 33% |

## Investments

| Company | Description | Round size | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| BlockBase | BlockBase provides consultation on blockchain-related technology. It also engages in product planning and development utilizing blockchain-related technology. |  | Corporate Round | Oct 30, 2019 |  |
| Pointy | pointy opened the Waidan Bar, the first full-membership system in Japan, and started the Narikiri date project in June 2019. Waidan Bar is a bar that specializes in obscene conversations. The first restaurant is Asagaya, Tokyo, and it was started by renting a bar, but at that time raising more than 7 million yen at jitsugen. As of 2019, there arethree existing stores, and new purchases of membership are stopped. |  | Angel | Jun 21, 2019 |  |
| TunaGate | TunaGate is a circle community site that boasts the largest number of registrations in Japan. |  | Seed | Mar 22, 2019 |  |

3 of 3 investments shown.

## Co-investors
- [ASAKASHINKAN GROUP](https://shizune.co/investors/profile/asakashinkan-group) — VC Fund, 1 deal together
- [Nagoya TV Ventures](https://shizune.co/investors/profile/nagoya-tv-ventures-beaf) — VC Fund, 1 deal together
- [SEA Social Venture Fund](https://shizune.co/investors/profile/sea-social-venture-fund) — VC Fund, 1 deal together
- [VALETUDO](https://shizune.co/investors/profile/valetudo) — VC Fund, 1 deal together

## About Mobile Factory

VC Fund · Higashi-shinagawa, Japan

MobileFactory, Inc. offers mobile content and mobile advertising services. The company’s services include mobile affiliate, mobile click network and the mobile and personal computer podcasting portal Caspeee. The company was founded in 2001 and is based in Tokyo, Japan.

5 contacts available at Mobile Factory.

| Name | Title | Profile |
| --- | --- | --- |
| Miyajima Yuji | Founder & CEO | https://shizune.co/investors/profile/miyajima-yuji |
| Eisuke Ito | Auditor | — |
| Kazumasa Namekata | Auditor (part-time) | — |
| Maiko Sato | Executive Officer | — |
| Shiozawa Gisuke | Auditor | — |

## Similar investors

### Similar stage
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund
- [Right Side Capital Management](https://shizune.co/investors/profile/right-side-capital-management) — VC Fund

## FAQ

### What does Miyajima Yuji invest in?

Miyajima Yuji invests primarily in Content, Adult and Blockchain startups, most often at Seed and Angel stage. Most of the 3 investments tracked by Shizune back companies in Japan. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### How do I contact Miyajima Yuji?

Public channels for Miyajima Yuji include LinkedIn. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.

### When did Miyajima Yuji last invest?

The most recent investment recorded for Miyajima Yuji closed in Oct 2019. Shizune tracks 3 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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