Fundraising Fox

RDiscovery

Venture capitalActively deploying

Seattle · Pre-Seed–Series A · 19 people tracked

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Investment thesis

RDiscovery focuses on identifying and building companies around promising pharmaceutical assets from Japanese universities and pharmaceutical companies at the pre-clinical stage. The firm leverages Japan's position as a source of approximately 10% of new FDA-approved drugs and its vast reservoir of highly developed, de-risked innovations. By acting as entrepreneurs and venture partners, RDiscovery transforms early-stage biotech innovations into successful therapeutic ventures and guides them through proof of concept and syndicate financing to bring more innovations to market rapidly.

Invests inBiotechMedical DevicesSeattleTokyo

Source: firm website, verified Jul 21, 2026.

Stage
Pre-Seed–Series A
HQ
Seattle, US
Leads rounds
Leads
Instruments
Equity
Tracked investments
11

Team · 19 people

from the firm's website
Hans Keirstead· Chairman

Internationally recognized stem cell expert and serial entrepreneur who founded five successful biotechnology companies and led 17 clinical trials across cancer, spinal cord injury, immune disorders, and other therapeutic areas. Former professor at UC Irvine and founding advisor to California's stem cell initiative.

Taro Inaba· Managing Partner, Director

Founder and Managing Partner with over 31 years of business experience, including 21 years in life science startup financing and company creation. Previously managed the biopharma investment team at Mitsui divisions.

Aki Tobaru· Partner, Director

Over 20 years in search, evaluation, business development, and venture investment. Previously Vice President of Corporate Development at Ora and spent 13+ years at Daiichi-Sankyo identifying opportunities from discovery through late clinical stage.

Kazu Nonomura· Partner, Director

Over 20 years of experience in drug discovery, licensing, and technology evaluation. Engaged in technology sourcing, company creation, and investment negotiations. Previously worked at Nippon Boehringer Ingelheim in Japanese innovative seed evaluation.

Taka Koda· Partner, Director

Over 20 years of business development and venture investment experience. Engaged in technology sourcing, company creation, and investment negotiations. Previously held multiple roles at Mitsui including board member and acting management positions.

Lina Li· Venture Partner
Stuart Hwang· Venture Partner

Serial entrepreneur and venture partner with over 25 years in corporate development across licensing, M&A, and strategic alliances. Cofounder and Chief Business Officer of Vincerx, which went public on NASDAQ in 2020. Led business development at Supergen closing strategic alliances with GSK and M&A with Astex.

Atsushi Uno· Senior Researcher

16 years in research and development of drug delivery system technology for nucleic acid drugs at a bio-venture company, with experience from basic research through clinical trials including pharmacodynamics and biomarker measurement.

Hiroshi Tamada· Chief Medical Officer

Chief Medical Officer with over 30 years of clinical practice and medical research experience across academia and industry. Spent 18 years at Pfizer, Merck, and Bristol Myers Squibb in R&D, marketing, and business development. Previously led clinical development at Luzsana Biotechnology.

Kanako Amano· Researcher

Approximately 10 years in applied biotech research at a major electronics manufacturer, followed by over 8 years in basic research at drug discovery ventures. Served as group leader of new compound development before joining RDiscovery.

Kyoko Matsumoto· Senior Associate

Over 18 years in drug discovery, patent practice, and technology transfer. Previously worked at Tohoku Techno Arch conducting technology evaluation, patent application, and license negotiation in the biotech area.

Masako Shimazaki· Researcher

Seven years at drug discovery venture NapaJen Pharma as lab manager overseeing in vitro pharmacological studies. Engaged in drug discovery research experiments since 2021.

Satoshi Gojo· Scientific Advisor

Studied transplantation immunology at Harvard and conducted clinical and research work on cardiac regeneration. Founded IMEL Biotherapeutics for mitochondrial disease therapies using proprietary mitochondrial genome replacement technology. Engaged in organelle therapy research.

Shinobu Suzuki· Scientific Advisor

Pharmaceutical scientist with expertise in molecular biology and immunology. Conducted basic research at UCLA, University of Toronto, and RIKEN, followed by open innovation roles at Bayer, Abbvie, and Boehringer Ingelheim. Currently accelerates academia-industry partnerships at Kyoto University.

Stephen Gitto· Director of Finance
Tetsuya Abe· Investment Manager
Walter Olesiak· Operating Partner

Over 28 years in business development, healthcare consulting, and venture investment. Spent 12 years at Mitsui Ventures holding board positions in 10 portfolio companies. Previously spent 6 years at Cambridge Pharma Consultancy advising on pharmaceutical pricing and market access.

Yohei Otsuki· Investment Manager
Yoshie Fujioka· Investment Manager

Investments · 11 tracked

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Capacity Biocapacitybio.comin
Capacity Bio

Private biotech company developing a first-in-class mitophagy therapeutic platform with advanced analytical toolkit for mitochondrial characterization.

IMEL

Develops cell-based therapies to restore mitochondrial function for treatment of genetic diseases and age-related indications.

Imelbiotximelbiotx.com
Immunohelixnapajen.com
Myrodia

Venture capital-led drug discovery startup focused on Sensory Medicine, developing pharmaceutical interventions based on sensory stimulation and artificial hibernation concepts.

Sanodynesanodyne.com
Sanodyne Therapeutics

Developing innovative therapies for peripheral neuropathy and neuropathic pain management.

Viageviagetx.com
Viage Therapeutics

Neuroscience company developing novel neurotherapeutics, with lead clinical candidate DGX-001 targeting the gut-brain axis.

Board seats · per SEC filings

what is this? ⓘ
Pattern Pharma Inc.SEC filing

$275K raise · filed Aug 2024 · via Hans Frans Keirstead

Inferred from directors named on each company's SEC Form D — public regulatory data, not a portfolio list published by the firm.

Frequently asked questions

What stage does RDiscovery invest at?
RDiscovery invests at the Pre-Seed, Seed, Series A stages.
What sectors does RDiscovery focus on?
RDiscovery focuses on Biotech, Medical Devices.
Where is RDiscovery located?
RDiscovery is headquartered in Seattle, US.
Does RDiscovery lead rounds?
Yes, RDiscovery leads investment rounds.

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