略
氏名：荒井裕樹（あらい歴ゆうき）

1998 年司法試験合格、1999 年東京大学法学部卒業、最高裁判所司法研修所入所、2000年弁護士登録、東京永和法律事務所入所。
同事務所在籍中、①旺文社 HD 事件、アルゼ重加算税事件、一条工務店重加算税事件、武富士創業家贈与税事件等の著名な巨額国際税務訴訟において、史上最高額の納税者勝訴等の実績を積む他、②ノーベル物理学賞受賞者となった中村修二博士による青色 LED 事件、味の素人工甘味料事件、日立製作所光ディスク事件、東芝フラッシュメモリー事件等の著名な職務発明対価訴訟において発明者側を代理する他、キユーピー人形著作権事件、アルゼパチスロ特許侵害訴訟等の著名な知的財産権関連訴訟においても実績を積み、特許権侵害訴訟史上最高額の特許権者賠償金額を勝ち取ることに貢献した。この他、③住友信託銀行と UFJ 信託銀行の経営統合破談に伴う訴訟、旧クリスタルグループの買収に係る紛争等の巨額の企業間紛争についても代理人を務めた。
2008 年に当事務所を設立して独立すると同時に、ニューヨーク大学経営大学院(NYUStern)へ留学し、2010 年 5 月同大学経営学修士課程（MBA）修了（計量金融学専攻）、在学中の 2009 年 10 月に本邦初の本格的ファミリーオフィス事業等を営むブックフィールドキャピタル株式会社(BFC)代表取締役に就任し、併せて投資銀行業務、ヘッジファンド運用に従事。最高投資責任者として運用した日本籍匿名組合 Fujiyama1 号ファンド及びケイマン籍 Fujiyama Fund において、それぞれ年 9％超及び年 14％超の収益率（いずれも複利年率、円建て、報酬控除前）を上げ、6 年超に及ぶ全運用期間においてシャープレシオ 1.0 超を達成した。8 年に及ぶ BFC の CEO 在任期間中、全期で利益を計上。同社株式は 2015 年4 月に日本最大のオンライン証券会社 SBI 証券に売却された。
2017 年 8 月、母校 NYU Stern に、同学の教授による優れた金融学分野の最優秀の未公表論文を対象とした永年の論文賞「Yuki Arai Faculty Award」を創設。

BIOGRAPHY
Name: Yuki Arai
In 1998, passed the Bar Exam in Japan. In 1999, graduated from the University ofTokyo, the Faculty of Law, and entered The Legal Training and Research Instituteunder the Supreme Court of Japan. In 2000, registered as a lawyer and joined Tokyo
Eiwa Attorneys at Law.
During the term working as an associate and partner at the firm, 1) represented
taxpayers and achieved the biggest rewards for tax payers in the history, in the famousinternational-related tax litigations such as Obunsha Holdings case, Aruze Heavy
Additional Tax case, Ichijo-Komuten Heavy Additional Tax case and Takefuji Founder’sfamily donation tax case. Also, 2) represented employee inventors for their famousremuneration claim cases such as Blue-LED case by Dr. Nakamura who won Nobel
Prize in Physics, Ajinomoto Aspartame (artificial sweetener) case, Hitachi Optical disccase and Toshiba Flash memory case while represented corporations as well in thefamous cases such as Kewpie doll copyright case and Aruze Pachi-slot patent
infringement case, in which won the biggest award for a patent holder in the history. Inaddition to the above, 3) also represented clients in large inter-corporations legal
disputes such as the case Sumitomo Trust Bank vs. UFJ Trust Bank over the break of
their merger agreement and the dispute over the acquisition of the Crystal Group, thenbiggest staffing company in Japan.
At the same time of the inception of this law firm in 2008, went to the U.S. foracquiring an MBA degree at New York University, Stern School of Business, In May
2010, graduated from the school majored in Quantitative Finance while appointed in
October 2009 as the representative director of Book Field Capital Co.(“BFC”), Ltd,
which runs substantially the first multi-families office business in Japan. As the CEO,also engaged in investment banking and management of hedge funds. During the term,managed as the Chief Investment Officer managed Japan based TK Fujiyama Fund No.
1 and Cayman based Fujiyama Fund which respectively recorded 9%+ and 14%+ (bothannualized, compound basis, JPY denominated, before fees) and achieved above Sharpe
Ratio 1.0 over the entire period of approx. 6+ years in total. Throughout the term as theCEO of BFC over 8 years until Oct. 2017, has recorded positive earnings. In April 2015,
the entire shares in BFC were sold to SBI Securities Co., Ltd, the largest online
brokerage in Japan.
In August 2017, established the permanent prize named “Yuki Arai Faculty Award” at
NYU Stern which annually award the best unpublished research paper among Sternfaculties in the field of Finance.