menu
  • Our Story

    • Overview
    • Careers
    • Locations
    • Diversity, Equity & Inclusion
    • Pro Bono
    • Community Involvement
    • Firm Leadership
    • History
    • Alumni
    • Affiliations
    • Media Inquiries
    • Make a Payment
  • Our People

  • Our Insights

    • Events/CLE
    • Publications
    • News
    • Blogs
  • Our Practices & Industries

    • Business
      • Business Transitions
      • Construction
      • Corporate, Securities, and M&A
      • ERISA, Life, Health & Disability
      • Finance & Banking
      • Health Care Transactions
      • Intellectual Property Transactions
      • Immigration
      • Labor, Employment & Benefits
      • Private Investment Funds
      • Private Client Services
      • Real Estate
      • Startups & Emerging Companies
      • Tax
      • Wage & Hour
    • Litigation
      • Antitrust, Competition & Trade
      • Appellate
      • Class Actions
      • Commercial Litigation
      • Construction
      • Creditors' Rights & Bankruptcy
      • Electronic Discovery, Technology & Strategy
      • ERISA, Life, Health & Disability
      • Fiduciary Litigation
      • Financial Institutions Litigation & Investigations
      • Insurance
      • Intellectual Property Litigation
      • International Arbitration
      • Labor, Employment & Benefits
      • Securities & Corporate Governance Litigation
      • Wage & Hour
    • Industries
      • Blockchain & Cryptocurrency
      • Food, Beverage & Hospitality
      • Government Law
      • Investigations, Compliance & White Collar
      • Japan Practice
      • Nonprofit & Social Enterprise
      • Privacy & Data Security
      • Senior Living & Long Term Care
      • Transportation
    • Services
      • COVID-19 Landlord/Tenant Response Team
      • COVID-19 Resource Center
      • Business Dispute Resolution
  • Our Locations

    • Anchorage
    • Portland
    • Seattle
  • Our Careers

    • Attorneys
    • Summer Associates
    • Professional Staff
  • Our Diversity

    • Diversity, Equity & Inclusion
    • Our Story
Lane Powell Web Site
  • OUR PEOPLE
  • STORY
  • INSIGHTS
  • PRACTICES & INDUSTRIES
Search
  • 日本語
  • 中文
  • 한국어
Email this pagePrint this pagePrint to PDF
Download vCardLinkedin
Masa Yamaguchi Photo

Masa

Masa Yamaguchi
ShareholderJapan Team Co-Chair
Portland
D 503.778.2174
C 503.720.5173
yamaguchim@lanepowell.com

Masa Yamaguchi co-leads the Japan Team at Lane Powell and represents clients in general corporate matters and multinational antitrust litigations. 

He focuses on multi-national antitrust cases, in both criminal investigations and class actions, and other types of multi-national litigations involving businesses. Masa enjoys working with Japanese clients and regularly works with in-bound Japanese businesses in various industries that are making direct investments in the Pacific Northwest region. He is actively involved in the legal and business community, currently serving as the Vice Chair of the Japan-America Society of Oregon (JASO), and as Co-Chair of the Doing Business in Oregon Committee at JASO.

Experience

  • Hoosiers Joint Venture With Wilshire Capital
    Represented Hoosiers, a Japan-based real estate company, in its joint venture with Wilshire Capital.
  • Tokai Carbon Co., Ltd. $310M Acquisition of Sid Richardson Carbon, Ltd.
    Represented Tokai Carbon in its $310M acquisition of Sid Richardson Carbon, Ltd.
  • Hoosiers Holdings: Development of the Canyons
    Advised Hoosiers on the JV agreement, service agreement, loan agreement with the bank and ancillary documentation surrounding the loan and various construction-related agreements.

Professional Experience

PacifiCorp — General Counsel’s Office, Legal Intern (2006-2008)

Lane Powell PC, Paralegal (2000-2004)

Okachi, Inc, Commodity Broker (1996-1998)

Community Involvement

Japan-America Society of Oregon (JASO)

  • Co-Chair, Doing Business in Oregon
  • Vice-Chair

Oregon Bar Association, International Law Section, Executive Committee

Oregon Bar Association, Antitrust and Trade Regulation Section, Executive Committee

Oregon Minority Lawyers Association, Member

Oregon State Bar, Business Law Section, Member

Oregon Asian Pacific American Bar Association, Member

American Bar Association, Antitrust Section, Member

Multnomah Bar Association, Member

Shokookai (Japanese Business Alliance), Member

Thought Leadership

  • May 12, 2022News
    Cerne and Yamaguchi Receive Honors From Lewis & Clark Law School Small Business Legal Clinic
    Awards & Honors
  • August 20, 2020News
    The Best Lawyers in America© 2021 Recognizes 92 Lane Powell Attorneys
    Awards & Honors
  • July 5, 2019News
    Twenty-one Lane Powell Attorneys Recognized by Super Lawyers in Alaska and Oregon
    Awards & Honors
  • March 26, 2019News
    Antitrust Team Wins GCR’s ‘Litigation of the Year – Cartel Defense’ Award
    Awards & Honors
  • July 24, 2018News
    Twenty-three Lane Powell Attorneys Recognized by Super Lawyers in Alaska and Oregon
    Awards & Honors
  • July 10, 2017News
    Twenty-three Lane Powell Attorneys Recognized by Super Lawyers in Alaska and Oregon
    Awards & Honors
  • January 3, 2017News
    Lane Powell Announces New Shareholders
    Firm Announcement
  • April 18, 2014Event / CLE
    Doing Business in Oregon
    Seminar | Japan
  • April 19, 2013Event / CLE
    Doing Business in Oregon
    Seminar | Japan

Practices & Industries

  • Antitrust, Competition & Trade
  • Corporate, Securities, and M&A
  • Electronic Discovery, Technology & Strategy
  • Japan Practice

Education

  • Lewis & Clark Law School, J.D., 2008
    • Business Law Certificate
    • Recipient of Research Fellowship Program
    • Minority Law Student Association, Member
  • Portland Community College , 2004
    • Paralegal Certificate Program
  • Dokkyo University , B.A., French, 1996

Admission

  • Oregon

Language

  • Japanese (Native)

Honors

"Ones to Watch," Best Lawyers®, Corporate (2021)

“Oregon Rising Star,” Thomson Reuters, Antitrust Litigation (2017); Mergers & Acquisitions (2018-2019)

Before proceeding, please note:  If you are not a current client of Lane Powell PC, please do not include any information in this email that you or someone else considers to be confidential or secret in nature.  Prior to the establishment of a lawyer-client relationship, unsolicited emails from non-clients containing confidential or secret information cannot be protected from disclosure.

back to top
  • Our Story

    • Overview
    • Careers
    • Locations
    • Diversity, Equity & Inclusion
    • Pro Bono
    • Community Involvement
    • Firm Leadership
    • History
    • Alumni
    • Affiliations
    • Media Inquiries
    • Make a Payment
  • Our People

    • Our Insights

      • Events/CLE
      • Publications
      • News
      • Blogs
    • Our Practices & Industries

      • Business
      • Litigation
      • Industries
      • Services
      • View All

    Blogs

    Boom: The ERISA Law Blog
    Earth & Table Law Reporter

    • Site Map
    • Disclaimer
    • Data Privacy & Security
    • Contact Us
    • Subscribe
    © 2023 Lane Powell PC Lane Powell & LP
    Logo, Reg. U.S. Pat. & Tm. Off.
    Sitemap
    Connect With Us
    • Twitter
    • Facebook
    • Linkedin
    • Vimeo
    • Make a Payment