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Keiko L. Sugisaka

Partner

Chair of Firm Board of Directors and Executive Committee
225 South Sixth Street, Suite 2900, Minneapolis, MN 55402

Bar Admissions

Minnesota
U.S. District Court
  • Minnesota
U.S. Court of Appeals
  • Eighth Circuit
  • Ninth Circuit
  • Federal Circuit

Leadership & Community

  • Maslon LLP: Board of Directors and Executive Committee Chair 2022-Present; Governance Committee Chair 2022; Governance Committee Member 2019-2022
  • U.S. District Court, District of Minnesota: Merit Selection Panel, Member 2022
  • Minnesota Commission on Judicial Selection: At-Large Member 2016-2023
  • Fourth Judicial District Ethics Committee: Vice-Chair 2012-2021
  • Twin Cities Diversity in Practice: Maslon Member Representative
  • Twin Cities Habitat for Humanity: Secretary 2023-Present, Board Member 2019-Present
  • Maslon UPLIFT: Legal Institute for Teens: Board Member
  • Federal Bar Association – Minnesota Chapter: Board of Directors 2018-2021; Executive Committee, Grant Committee Co-Chair 2018-2019; Diversity Committee Member
  • The Advocates for Human Rights: Pro Bono Attorney Volunteer
  • United States District Court for the District of Minnesota: The Asian Pacific Legal Experience in America exhibit, Committee Member
  • Women Presidents Organization: Minnesota Chapter
  • Minnesota Women Lawyers
  • Minnesota Federal Court Open Doors Program
  • Minnesota Asian Pacific American Bar Association
  • Power of 100 Twin Cities Women Who Care: Member 2012-Present
  • Leadership Council on Legal Diversity: Joined 2019
  • Twin Cities E-Discovery Forum
  • U.S. District Court, District of Minnesota, Pro Se Project: Volunteer Attorney
  • Twin Cities Committee on Minorities in Large Law Firms: Past Board Member
  • St. Paul Association for Community Soccer: Past Board Member
  • Theater Latté Da: Past Board Member
  • Community Child Care Center: Past Parent Board Member

Overview

Keiko Sugisaka is a trial lawyer, concentrating her practice primarily on product liability, complex business, and intellectual property cases, including consolidated and multi-district litigation. She has broad experience successfully representing clients in federal and state courts nationwide involving product liability defense; patent, trademark, and copyright infringement; director/officer liability; trade secret misappropriation; unfair competition; and commercial disputes. Keiko also has extensive experience in all stages of complex and large-scale discovery and e-discovery issues. At Maslon, Keiko serves as chair of the firm's five-person Board of Directors. In addition, Keiko is a member of the firm's recruiting and DEI committees, and is Maslon's member representative in Twin Cities Diversity in Practice, a nonprofit association comprised of Twin Cities law firms and corporate legal departments whose vision is to create a vibrant and inclusive legal community.

Prior to joining Maslon, Keiko practiced intellectual property litigation with a large national law firm and was an Assistant Attorney General in the Minnesota Attorney General's Office where she enforced laws regulating nonprofit corporations, management of charitable assets, and litigating high-profile matters such as health care audits, insurance industry investigations, and fraud cases.

Keiko earned her law degree, cum laude, from the University of Minnesota Law School and earned her bachelor's degree, cum laude, with a double major in speech communication and law and society from Macalester College. She also completed a judicial clerkship with Justice Alan C. Page of the Minnesota Supreme Court (1996-1997).

Experience

  • In re American Medical Systems, Inc., CV-11-3933 (Hennepin County District Court, Minnesota). Defended consolidated state court actions alleging multiple tort theories against American Medical Systems related to female mesh products. Oversaw and coordinated discovery for related MDL with over 14 million pages of ESI and numerous databases.
  • Represents world-leading medical device company in nationwide litigation involving PMA and 510k devices, including coordinating nationwide discovery for two product portfolios.
  • Thomsen v. Famous Dave's of America et al., 606 F.2d 905 (8th Cir. 2010). Defended $10 million copyright infringement and breach of contract action brought by former sign painter and restaurant designer for defendant Famous Dave's. District Court dismissed case on summary judgment, which was upheld on appeal.
  • U.S. Bancorp. v. Mitgang et al. (Minn. Ct. App.). Appellate counsel for plaintiff in $1 million breach of contract action. Obtained complete reversal of summary judgment on appeal with appellate court ordering grant of summary judgment in favor of plaintiff.
  • Part of team representing design engineers for litigation following collapse of I-35W Bridge in Minneapolis; obtained interlocutory appellate review of district court decisions involving statute of repose.
  • Indiezone, Inc. et al. v. Rooke et al. (N.D. Cal. 2013). Lead trial counsel successfully defending 17 defendants, as well as indemnified parties including two of the world's largest retailers, a national bank and technology company, against a 27-count complaint brought by domestic and international plaintiffs alleging over $1 billion in damages for trade secret misappropriation, civil RICO, copyright and trademark infringement, and state law claims. Obtained an order dismissing one plaintiff for lack of standing and requiring the remaining plaintiff to arbitrate against certain defendants and stay the litigation pending arbitration. Prior to arbitration, successfully moved the court to vacate the arbitration order, dismiss the entire lawsuit with prejudice as to all defendants, and award attorneys' fees, which was affirmed on appeal.

Other Selected Case Results

  • Trial and appellate counsel in defense of an alleged $500 million theft of trade secret, breach of fiduciary duty and breach of contract case. The district court dismissed the case on summary judgment, which was affirmed on appeal.
  • Trial counsel for plaintiff in action for theft of trade secrets involving an Olympic hospitality business for the 2004 Summer Olympics in Athens. Obtained a temporary injunction and case settled thereafter including a permanent injunction.
  • Trial counsel for plaintiffs in patent infringement action for web browser technology for interactive applications embedded in web pages. Jury verdict returned in favor of plaintiffs on issues of infringement, validity, and damages in the amount of $520.6 million, with final judgment, including prejudgment interest, in an amount over $565 million. On appeal, the Federal Circuit affirmed infringement and damages and ordered remand on invalidity and inequitable conduct defenses. Case settled prior to invalidity retrial.

Honors

Top Women in LawMinnesota Lawyer, 2023 (Minnesota Lawyer's Top Women in Law class celebrates the outstanding achievements of women in the legal community in Minnesota.)

100 People to Know in 2023, Twin Cities Business

Recognized on Minnesota Super Lawyers® list, 2017-2023 (Minnesota Super Lawyers® is a designation given to only 5% of Minnesota attorneys each year, based on a selection process that includes the recommendation of peers in the legal profession.)

Selected for inclusion in The Best Lawyers in America®, 2021-2024

Attorney of the Year, Minnesota Lawyer, 2022

Recognized as a Top LawyerMinnesota Monthly, 2022 (The research for the Top Lawyers list, created by Professional Research Services, is based on an online peer-review survey sent to all attorneys in Minnesota.)

Top Women Attorneys in Minnesota® list, 2018-2023 (The annual edition of the Top Women Attorneys in Minnesota list features attorneys selected for the previous year's Minnesota Super Lawyers® and Rising Stars lists.)

2021 Notable BIPOC Executive, Twin Cities Business (Notable BIPOC Executive is a designation that recognizes individuals for their ability to effect change, their willingness to share expertise, and their leadership in specific initiatives or programs at their companies or institutions that have created significant, positive, and measurable results.)

North Star Lawyer, Minnesota State Bar Association, 2014-2019, 2022 (North Star Lawyer is a designation that recognizes members who provide 50 hours or more of pro bono legal services in a calendar year.)

2017 Women in Business Award Winner, Minneapolis/St. Paul Business Journal

Pro Bono All Star, Minnesota State Bar Association, 2020 (Pro Bono All Star is a designation that recognizes MSBA members who have been recognized as North Star Lawyers for seven or more years.)

Recognized on Minnesota Rising Stars list as part of the Super Lawyers® selection process, 2004, 2009, 2011 (Minnesota Rising Stars is a designation given to only 2.5% of Minnesota attorneys each year, based on a selection process that includes the recommendation of peers in the legal profession.)

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If you would like to discuss possible representation, please call one of our attorneys directly or use our general line (p 612.672.8200). We can then fully discuss our intake procedures and, if appropriate, introduce you to an attorney suited to assist with your matter. Alternatively, you may send an email containing a general inquiry subject to these terms.

If you are a member of the media, accept the terms of this notice, and would like to send an email, click on the "Accept" button below. Otherwise, please click "Decline."