Yuki Tanaka

Chief Executive Officer at 株式会社Study Valley

📍 Tokyo, Tokyo, Japan🔄 Updated September 2026💼 5 investments📅 8 years investing🗓 Last invested Jun 2019
VC🌍 Japan
5
Total investments
4
Early stage
1
Mid stage
0
Late stage
8y
Years active

Portfolio

5 investments · sorted by recency
All investments
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Late stage
Investor
Jun 2019
Breez is the interface of the P2P Lightning economy, where users can buy, sell, and pay for goods, services, and streaming content with a non-custodial, seamless, and open mobile platform, turning bitcoin into the currency it was always meant to be.
Investor
Apr 2019
COTI is the fastest and lightest confidentiality layer on Ethereum. Powered by the breakthrough cryptographic protocol Garbled Circuits and secured by Ethereum, COTI introduces the most advanced and compliant solution for data protection on the public blockchain. Paving the way for the next wave of Web3 innovation and adoption, COTI unlocks a whole new world of use cases, including confidential transactions, Artificial Intelligence, DeFi, decentralized identification, and more.
Investor
Feb 2019
BEAM is based on Mimblewimble – an elegant protocol released by an anonymous developer in 2016. Named after a tongue-tying spell from the Harry Potter saga, Mimblewimble uses Pedersen Commitment scheme for full anonymity and zero-knowledge range proofs to ensure validity of transaction amounts. To enhance privacy and reduce the blockchain size, Mimblewimble merges all intermediate outputs within a single block and across multiple blocks, thus only storing the current UTXO state and making the blockchain size an order of magnitude smaller than in other leading currencies. BEAM team implemented Mimblewimble from scratch using C++. BEAM blocks are mined using memory-hard Equihash Proof-of-Work algorithm. The block time is 1 minute on taver- age.
Investor
Jan 2019
At Loyyal we are reinventing how customer incentives are created, rewarded, and managed. Using proprietary blockchain and smart contract technology, our patented platform brings a host of benefits to a highly fragmented industry and offers brands an innovative way to unlock the billions of dollars in value held captive in legacy loyalty programs today.
Investor
Dec 2018
We provide the wealth management products crypto investors need, all powered by blockchain technology. Currently, we service clients worldwide and in all U.S. states, with USD loans backed by crypto, interest earning accounts, and trading. Learn more about our products, company, and team at BlockFi.com.
Experience · 9 entries
All (9)
Investments (5)
Founder (1)
2019
Investor
Jun 2019
Breez is the interface of the P2P Lightning economy, where users can buy, sell, and pay for goods, services, and streaming content with a non-custodial, seamless, and open mobile platform, turning bitcoin into the currency it was always meant to be.
Investor
Apr 2019
COTI is the fastest and lightest confidentiality layer on Ethereum. Powered by the breakthrough cryptographic protocol Garbled Circuits and secured by Ethereum, COTI introduces the most advanced and compliant solution for data protection on the public blockchain. Paving the way for the next wave of Web3 innovation and adoption, COTI unlocks a whole new world of use cases, including confidential transactions, Artificial Intelligence, DeFi, decentralized identification, and more.
Investor
Feb 2019
BEAM is based on Mimblewimble – an elegant protocol released by an anonymous developer in 2016. Named after a tongue-tying spell from the Harry Potter saga, Mimblewimble uses Pedersen Commitment scheme for full anonymity and zero-knowledge range proofs to ensure validity of transaction amounts. To enhance privacy and reduce the blockchain size, Mimblewimble merges all intermediate outputs within a single block and across multiple blocks, thus only storing the current UTXO state and making the blockchain size an order of magnitude smaller than in other leading currencies. BEAM team implemented Mimblewimble from scratch using C++. BEAM blocks are mined using memory-hard Equihash Proof-of-Work algorithm. The block time is 1 minute on taver- age.
Investor
Jan 2019
At Loyyal we are reinventing how customer incentives are created, rewarded, and managed. Using proprietary blockchain and smart contract technology, our patented platform brings a host of benefits to a highly fragmented industry and offers brands an innovative way to unlock the billions of dollars in value held captive in legacy loyalty programs today.
2018
Investor
Dec 2018
We provide the wealth management products crypto investors need, all powered by blockchain technology. Currently, we service clients worldwide and in all U.S. states, with USD loans backed by crypto, interest earning accounts, and trading. Learn more about our products, company, and team at BlockFi.com.
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Investment activity
2018–2019 · 5 investments
2018120194
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