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Monika Oyama is an integral member of the firm's Japan practice, representing Japanese corporations and their U.S. subsidiaries throughout North America in all stages of business. She is fully bilingual in Japanese and English and her understanding of American and Japanese business and culture is invaluable to the clients she counsels.


Monika's corporate practice focuses on cross-border and domestic business transactions, including mergers and acquisitions, dissolutions and liquidations, financing transactions, joint ventures, minority investments, private placements, and counseling on CFIUS matters. She has hands-on experience advising on and submitting declarations under the final CFIUS regulations that went into effect in February 2020.

Monika is Chair of the firm’s Intellectual Property & Technology practice and she counsels clients on various trademark, copyright, software, privacy, and other intellectual property matters. As a member of the firm’s Commercial, Competition & Trade practice, she regularly advises on a myriad of commercial transactions, including sales representative and distributorship relationships involving the development, manufacture, and sale of goods, services, and technology, manufacturing and supply arrangements, and consulting services, warehousing and OEM agreements, and equipment leases.

Monika represents clients operating in many different industries including automotive, energy, food and beverage, textile and fashion, chemical manufacturing, pharmaceuticals, medical supplies, industrial machinery manufacturing, transportation, consumer products and software. She makes it a point to learn about each client’s industry, as well as their specific business objectives, in order to help them achieve their goals.

Monika leads the Visiting Attorney Program at the firm. She is actively involved in a number of Japanese organizations, including serving as Vice Chair of the Chicago Mita-kai (Keio University alumni group). She is also a Chair of the Committee of International Law of the National Asian Pacific American Bar Association, as well as a delegate of the 2020-2021 Emerging Leaders Program of the U.S.-Japan Council.



  • The Pennsylvania State University Dickinson School of Law, J.D., 2013
  • Keio University, LL.B., 2010


  • Illinois
  • California


  • Japanese


Advised the U.S. subsidiary of a leading global supplier of industrial power products on the restructuring of their business.
Assisted in the representation of clients in numerous asset and stock purchases and sales involving various industries, including software, clothing brands, injection molding, healthcare, automotive and industrial products. 
Represented clients on intra-company and inter-company financing arrangements.


American Bar Association
Asian American Bar Association Chicago
Chicago Bar Association
National Asian Pacific American Bar Association – Chair, International Law Committee
U.S.-Japan Council – Delegate, 2020-2021 Emerging Leaders Program
U.S. Supreme Court Finally Speaks Regarding Trademark Licenses in Bankruptcy
On May 20, 2019, the U.S. Supreme Court issued its long-awaited decision in Mission Products Holdings, Inc. v. Tempnology, LLC nka Old Cold…
FDA Renewal Due for Food Facilities at End of 2018
This year, all food facilities required to register with the FDA must renew their registrations by the end of the year. It is important to…
National Asian Pacific American Bar Association (NAPABA) Annual Convention – "Guardians of the Globe: Working Internationally" Panelist - November 9, 2019
Utilizing Professional Skills and Education from Outside the United States During the Pacific Century - ABA Section of International Law 2016 Fall Conference; Tokyo, Japan, October 20, 2016
Complimentary Webinar: Attacking the Post-COVID M&A Market: The Key Issues in Acquiring Divested Businesses in the U.S. and the Americas (Webinar in Japanese)
With large numbers of U.S. corporate groups indicating they intend to engage in divestiture activity in the post-COVID time period…
Complimentary Webinar: Brand Protection in the US 101 (Webinar in Japanese)
Brand protection is critical for businesses because you could lose all the investment that went into the creation and promotion of the…
Monika Oyama Co-Presenting at Virtual Digima Event
On January 22, 2021, Monika R. Oyama, Principal in Masuda Funai's Corporate, Finance and Acquisitions Practice Group, will be co-presenting…
Monika Oyama Co-Presenting at Virtual JETRO Chicago Event
On February 2, 2021, Monika R. Oyama, Principal in Masuda Funai's Corporate, Finance and Acquisitions Practice Group, will be co-presenting…
Monika Oyama Selected in U.S.-Japan Council Emerging Leaders Program
Monika R. Oyama, Principal of Masuda, Funai, Eifert & Mitchell, Ltd., has been selected as a delegate to the 2020 Emerging Leaders Program…
Japan's Supreme Court Rules Tattoo Artists Do Not Need Medical License to Practice
In 2018, Monika Oyama, Principal of Masuda, Funai, Eifert & Mitchell, Ltd., assisted a team of Japanese lawyers, on a pro bono basis, with…
Monika Oyama Admitted to Practice Law in California
Monika R. Oyama, a Principal of Masuda, Funai, Eifert & Mitchell, Ltd., has been admitted to practice law in the State of California. Ms…
Masuda Funai Represented METAWATER Co., Ltd. and METAWATER USA, Inc. in an Acquisition Transaction
Masuda, Funai, Eifert & Mitchell, Ltd. represented METAWATER Co., Ltd. ("META") and METAWATER USA, Inc. ("MUSA"), META's wholly-owned…
Monika Oyama Spoke at NAPABA's Annual Convention
On November 9, 2019, Monika Oyama, Principal in Masuda Funai’s Corporate, Finance and Acquisitions Practice Group, attended and spoke at…
Masuda Funai 2019 Leadership Changes
Masuda, Funai, Eifert & Mitchell, Ltd.’s Board of Directors elected a new President, George Kobayashi, effective January 1, 2019. George…
Monika Oyama Provides Pro Bono Work on a Case Involving the Japan Medical Practitioners' Act
Masuda Funai Associate, Monika Oyama, assisted a team of Japanese lawyers representing a tattoo artist that was charged by prosecutors for…
"A New Route to Raise Capital and Realize Your Dream" - ​​​​​​​Japanese Chamber of Commerce & Industry of Chicago Newsletter, March 2014
"The Changes in the Role of Assignment of Securities: Asset Based Lending" - 41 Horitsugaku Kenkyu 1-19, 2009