# Ryusuke Honjo

> Ryusuke Honjo is a seed investor at Green Core backing Medical and Health Care. See 5 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Green Core](https://shizune.co/investors/profile/green-core-d32d)
- Total investments: 5
- Last investment: Jun 2026
- Lead investor: 60%
- Last updated: Aug 2026

Ryusuke Honjo is a seed investor at Green Core focused on Medical and Health Care. Ryusuke Honjo is the ceo of Green Core Co., Ltd.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Medical | 1 | 20% |
| Health Care | 1 | 20% |
| Biotechnology | 1 | 20% |
| Medical Device | 1 | 20% |
| Pharmaceutical | 1 | 20% |

7 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 2 | 40% |
| Series A | 2 | 40% |
| Funding Round | 1 | 20% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| JiMED | JiMED designs & develops AI based brain-computer interface for implant in ALS patients to improve communication. | $2M |  | Jun 18, 2026 |  |
| Cosomil | Cosomil develops early diagnostic drugs for diseases and provides research and development support to healthcare companies. |  | Series A | Feb 06, 2026 |  |
| JiMED | JiMED designs & develops AI based brain-computer interface for implant in ALS patients to improve communication. | $2.3M | Series A | Feb 13, 2025 |  |
| Horizon Illumination Lab Optics | Horizon Illumination Lab Optics conducts programs to enhance research related to fluorescent bioimaging technology. |  | Seed | Nov 29, 2024 |  |
| Cosomil | Cosomil develops early diagnostic drugs for diseases and provides research and development support to healthcare companies. |  | Seed | Nov 29, 2023 |  |

5 of 5 investments shown.

## Co-investors
- [Kyoto University Innovation Capital](https://shizune.co/investors/profile/kyoto-university-innovation-capital) — VC Fund, 3 deals together
- [Animal Spirits Ltd.](https://shizune.co/investors/profile/animal-spirits-ltd) — VC Fund, 2 deals together
- [ANRI](https://shizune.co/investors/profile/anri) — VC Fund, 2 deals together
- [Delight Ventures](https://shizune.co/investors/profile/delight-ventures) — VC Fund, 2 deals together
- [Keio Innovation Initiative](https://shizune.co/investors/profile/keio-innovations-initiative) — VC Fund, 2 deals together
- [Coral Capital](https://shizune.co/investors/profile/coral-capital) — VC Fund, 1 deal together

## About Green Core

VC Fund

Green Core is an investment company.

1 contacts available at Green Core.

| Name | Title | Profile |
| --- | --- | --- |
| Ryusuke Honjo | CEO | https://shizune.co/investors/profile/ryusuke-honjo |

## 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 Ryusuke Honjo invest in?

Ryusuke Honjo invests primarily in Medical, Health Care and Biotechnology startups, most often at Seed and Series A stage. Most of the 5 investments tracked by Shizune back companies in Japan. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Ryusuke Honjo last invest?

The most recent investment recorded for Ryusuke Honjo closed in Jun 2026. Shizune tracks 5 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.

# About Shizune
Shizune.co is an investor database. Core features:
- 48,091 startup investors (angels, VCs, accelerators, and others)
- Email, phone, LinkedIn (for intros), socials, and other contact data
- Updated daily from public funding news
- CSV and Excel export

The User can access the full database FOR FREE after signing up: shizune.co