the firm's post-grant practitioners are some of the most experienced in the country.


Artificial Intelligence (AI)
Artificial Intelligence (AI)
Digital Health
Digital Health
Energy & Renewables
Energy & Renewables

Fast Facts

About Our

Law Firm

About Our Law Firm

Headquartered within steps of the USPTO with an affiliate office in Tokyo, Oblon is one of the largest law firms in the United States focused exclusively on intellectual property law.

Get to know our


Get to know our History

Norman Oblon with Stanley Fisher and Marvin Spivak launched what was to become Oblon, McClelland, Maier & Neustadt, LLP, one of the nation's leading full-service intellectual property law firms.

Our Local and

Global Reach

Our Local and Global Reach

Outside the US, we service companies based in Japan, France, Germany, Italy, Saudi Arabia, and farther corners of the world. Our culturally aware attorneys speak many languages, including Japanese, French, German, Mandarin, Korean, Russian, Arabic, Farsi, Chinese.

A few of our


A few of our ACCOLADES

Oblon's professionals provide industry-leading IP legal services to many of the world's most admired innovators and brands.




From the minute you walk through our doors, you'll become a valuable part of a team that fosters a culture of innovation, client service and collegiality.

A few ways to

GET In Touch

A few ways to GET In Touch
US Office

Telephone: 703-413-3000
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Tokyo Office

Telephone: +81-3-6212-0550
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Patent Forms

Downloadable Patent Forms

The United States Patent and Trademark Office (USPTO) issued final rules implementing the inventor's oath or declaration provisions of the America Invents Act (AIA) on August 14, 2012.

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Akihiro  Yamazaki

Akihiro Yamazaki

Partner ∙ US Office
T: (703) 413-3000
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Akihiro Yamazaki is a partner and member of the firm's Management Committee.  He is also a member of firm's Chemical Patent Prosecution, Pharmaceutical/Medical Devices and Litigation practice groups. His practice includes patent litigation, opinions, client counseling, licensing advice, due diligence studies and the preparation and prosecution of patent applications.

A patent attorney and native of Japan, Mr. Yamazaki represents primarily foreign companies, including their U.S. affiliates and subsidiaries, with respect to a wide range of chemistry-related and pharmaceutical technologies. These technologies include active pharmaceutical ingredients, formulations, semiconductors, light-emitting diode (LED), organic light-emitting diode (OLED), and optical parts and components.

With experience in both litigating and prosecuting patents, Mr. Yamazaki frequently travels to Japan and counsels Japanese companies to identify issues and challenges and to protect their interests in the United States and worldwide. Mr. Yamazaki also provides advice regarding intellectual property matters through the United States Patent and Trademark Office (USPTO) and the U.S. court system, and legal trends impacting client industries.

Bar Membership Other Than Virginia


  • University of Connecticut School of Law (J.D.)
  • University of Florida (B.S.)
    • Chemistry
    • Phi Beta Kappa


  • New York
  • New Jersey
  • Registered to practice before the U.S. Patent and Trademark Office


  • Japanese

Professional Affiliations

  • American Bar Association
  • American Intellectual Property Law Association (AIPLA)