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Heidi M. Yoshioka

Heidi M. Yoshioka


Heidi Yoshioka is an accomplished trial attorney who focuses her practice on complex and high-exposure product liability, premises liability and general liability matters. For more than 25 years she has represented national and international clients in the automotive, vertical transportation, heavy machinery, highway transportation, food product, and hospitality industries. Heidi currently defends the world’s largest communications company in matters of general liability and premises liability.  

Heidi works in collaboration with her clients to serve their business and strategic objectives. Her professional mission is to provide value-based legal services. To this end, Heidi's case management practices are specifically tailored to meet her clients' needs.
Heidi has successfully tried to verdict multi-plaintiff automobile, vertical transportation and premises liability cases.  Additionally, she has extensive motion practice experience and has successfully authored and argued motions for summary judgment. She is also experienced deposing experts, parties, and third-party witnesses and defending clients during depositions.  

Heidi strives to build and promote diversity in the legal profession through her involvement with the National Asian Pacific American Bar Association, Japanese American Bar Association and the Asian Pacific American Women Lawyers Alliance of Los Angeles. She has also served as an adjunct professor at her alma mater, Southwestern Law School.

Bar Admissions

  • California, 1990


  • Southwestern Law School, J.D., 1989
  • Loyola Marymount University, B.A., 1986

Professional Associations

    • National Asian Pacific Bar Association
    • Japanese American Bar Association 
    • Asian Pacific American Women Lawyers Alliance, Los Angeles
    • Southwestern Law School
      —Associate Adjunct Professor, 2013 ─ 2017
      —Board of Directors, 2003 ─ 2016
      —President of the Alumni Board of Directors, 2011 ─ 2013
      —Board of Trustees, 2011 ─ 2014
      —Dean's Search Committee, 2013
    • Los Angeles County Bar Association
      —Program Chair, Inn of Courts Litigation Section, 2014 ─ 2015
    • Miranda's People, Non-Profit for Canine Cancer
      —Board of Directors


    Southwestern Law School
    —Alumni Resource Network Mentor of the Year, 2017


Castro v. Budget Rent-A-Car System, Inc. 154 Cal.App.4th 1162, 2007