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The collective expertise of our global team distinguishes OBWB in the field of Intellectual Property Law. We align our best resources to meet each client's specific needs and we treat each matter with the highest degree of attention and care.

Ayaka  Saito

Ayaka  Saito

  • Patent Engineer
  • Japanese
  • English

Ayaka Saito assists with drafting foreign patent applications in the field of chemistry. She holds a master’s degree in chemistry and has experience in the fields of analytical chemistry, inorganic chemistry, and geochemistry. 

Prior to joining Osha Bergman Watanabe & Burton (OBWB), Ayaka Saito worked as a chemical engineer in the field of organic photo conductors and gained experience on product design and process design.


  • School of Science, Kitasato University, B.S., Chemistry, 2017
  • Graduate School of Science, The University of Tokyo, M.S., Chemistry, 2019
  • Ayaka Saito, Hiroyuki Kagi, Kazuki Komatsu, Riko Iizuka-Oku. “Disorder of carbonate ions at room temperature and high-pressure behavior of Ba-doped calcite,” Japan Geoscience Union Meeting 2018
  • Ayaka Saito, Hiroyuki Kagi, Shiho Marugata, Kazuki Komatsu, Daisuke Enomoto, Koji Maruyama, Jun Kawano, “Incorporation of Incompatible Strontium and Barium Ions into Calcite (CaCO3) through Amorphous Calcium Carbonate,” Minerals, 2020
  • Yusuke Miyajima, Ayaka Saito, Hiroyuki Kagi, Tatsunori Yokoyama, Yoshio Takahashi, Takafumi Hirata, “Incorporation of U, Pb and Rare Earth Elements in Calcitethrough Crystallisation from Amorphous Calcium Carbonate: Simple Preparation of Reference Materials for Microanalysis,” Geostandards and Geoanalytical Research, 2020