We are also available for writing and contribution upon request. Please feel free to contact us for any inquiries or requests.

The following is a list of major achievements in the past.


  • Yasuko TANAKA (2019) “First Bio-S Patent Battle Court Decision in Japan -Rituximab-”September 2019, Darts-ip Blog
  • Yasuko TANAKA (2019) “Biologics Patent Dispute between Amgen and Sanofi in Japan” May 31, 2019, Darts-ip Blog
  • Yasuko TANAKA (2019) “Recent Trend Issues in Pharma Patent LitigationJOURNAL OF THE JAPANESE INSTITUTE OF INTERNATIONAL BUSINESS LAW, Vol.47(2019), No., 331_336
  • Yasuko TANAKA (2019)“Global Pharma Patent Battles : HIV integrase inhibitors “Raltegravir”” Jan 23, 2019, Darts-ip Blog
  • Yasuko TANAKA (2019) “Chizai Kyukyu-bako Vol.10 IP practice Tips in English 2/2” The Invention, 2019 No.1, 56_59


  • Yasuko TANAKA (2018) “​Chizai Kyukyu-bako Vol.9 IP practice Tips in English 1/2” The Invention, 2018 No.12, 52_55, 
  • Yasuko TANAKA (2018) “IP English Communication to Help You Thrive in Your Job” Patent by JPAA, Vol. 71, No.7, 35_42 
  • Yasuko TANAKA (2018) “A New Precedent in Japan Pharma Patent Litigation” Jul 2, 2018, Darts-ip Blog
  • Yasuko TANAKA (2018) “Patent Tactics in Cell Drugs” PHARMSTAGE by Gijutu Joho Kyokai, June 2018 


  • Yasuko TANAKA (2017) “Fully Comprehend Elplat® IP High Court en Banc Decision -H28(ne)10046” JOURNAL OF THE JAPANESE INSTITUTE OF INTERNATIONAL BUSINESS LAW, Vol.45, No.8, 1147_1153
  • Yasuko TANAKA (2017) “Chizai Kyukyu-bako Vol.4 Drug and Patent-2” The Invention, Vol.114 2017 No.7, 44_47
  • Yasuko TANAKA (2017) “Chizai Kyukyu-bako Vol.3 Drug and Patent-1” The Invention, Vol.114 2017 No.6, 44_47
  • Yasuko TANAKA (2017) “TPP Impact on Drug Protection” The Japan Association of International Business Law, Vol.2 152_154