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Takayuki Yasaku

Picture Japanese Patent Attorney
(Certified to practice IP litigation in Japan)

U.S. Attorney (New York)

Takayuki Yasaku is a Japanese patent attorney (certified to practice IP litigation in Japan) and a U.S. attorney and has over 20 years of experience in patent litigation, licensing, counseling opinion and prosecution, in a wide variety of technologies including semiconductor circuits and devices, consumer electronics, medical devices, medicines, telecommunications and materials.

After he obtained his master's degree in engineering (pure and applied physics) from Waseda University, Graduate School, in 1997, he spent seven years working in the intellectual property department of Toshiba Corp. His main tasks included licensing negotiation, litigation, and prosecution of patents relating to semiconductor technologies. He passed the Japanese patent attorney examination in 1997. After graduating from New York Univ., School of Law, in 2005, he worked in a prominent, global IP law firm in Virginia. He passed the U.S. patent bar in 2006 (Limited Recognition pursuant to 37 CFR §11.9(b), unregistered after he returned to Japan). After he joined the Los Angeles office of Hogan & Hartson (now Hogan Lovells) in 2007, he returned to Japan and joined the Tokyo office of Hogan Lovells in 2010. In 2015, he opened his own firm.

・ 1997-2004   Toshiba Corporatino (Patent Attorney at Semiconductor IP Division)
・ 2005-2007   Oblon, Spivak, McClelland, Maier & Neustadt, P.C. (Associate)
・ 2007-2009   Hogan & Hartron LLP, Los Angeles Office (Associate)
・ 2010-2015   Hogan Lovells HJGKJ, Tokyo Office (Of Counsel)
・ 2015-          Yasaku International IP Law Firm (Owner)  
・ LL.M, New York University School of Law, 2005
・ B. of Art (Law), Hosei University, 2001
・ M. of Engineering (Pure and Applied Physics), Waseda University, 1997
・ B. of Engineering (Applied Physics), Waseda University, 1995  
・ Japan Patent Bar
・ Japan - Tokyo Bar Association (Gaikokuho Jimu Bengoshi)
・ New York  
・ AIPPI Software Patent Committee (2011〜)  
・ "Intellectual Property Term Dictionary" (Joint authorship) (Nikkan Kogyo Shinbun, Ltd. 2002)
・ "Patent infringement in case separate entities each perform separate steps of a method claim - Akamai en banc decision (Akamai and McKesson cases) -" (AIPPI(2013)Vol.58 No.1)
・ "Intervening Rights under the U.S. patent law" (Intellectual Property Management)(Dec. 2013)
・ "Patent infringement in case separate entities each perform separate steps of a method claim - Limelight Supreme Court Decision -" (AIPPI(2014)Vol. 59 No.8)
・ "Some thoughts on patent litigation in Japan in comparison with the U.S." (Chizaiken Forum (Institute of Intellectual Property) Vol. 102(August 2015))
・ "Software Patent Eligibility and Consideration of Specification - Amdocs (Israel) Ltd. v. Openet Telecom, Inc., No. 15-1180 (Fed. Cir. Nov. 1, 2016) -" (AIPPI(2017)Vol. 62 No.7)
・ "Business Activities outside the United States and U.S. Patent Infringement" (LES JAPAN NEWS Dec. 2017, Vol. 58 No. 4)
・ "Split in Federal Circuit in Views on the Patent Eligibility: what is a claim directed to law of nature? 〜 The Federal Circuit’s decisions on American Axle case 〜" (AIPPI(2021)Vol. 66, No. 2)
・ "Intervening Rights under the U.S. patent law" (Intellectual Property Management, Vol. 71 No. 3, pp. 322-334)