Skip to main content


Not yet reviewed

About me

Yoichiro (Yokum) Taku represents technology and growth companies at all stages of development, through private financings, strategic transactions, public offerings, and mergers and acquisitions. He also represents investors in venture capital financings. Yokum also leads Wilson Sonsini Goodrich & Rosati's Japan practice.


Please see my blog at for more information about me.


Languages spoken: Japanese

Practice areas


  1. Venture Capital: 25%
  2. M & A: 25%
  3. Securities Offerings: 25%
  4. Corporate: 25%



Hourly ($775/hour)

Attorney endorsements

4 total 

Are you an attorney? Endorse this lawyer

  • Ronald R. Rose

    I have known Yokum for over 15 years and have worked with him on several different matters. He has deep knoweldge and experience in structuring high technology start ups for future growth opportunities. He also has a unique background and experience in representing foreign founders of start-ups, especially from Asia. He is one of the rare attorneys in the Silicon Valley who can literally take a client from the garage to to ringing the bell at the NYSE at their IPO debut. He is highly recommded.


    Ronald Rose Immigration Attorney
    Relationship: Worked together on matter

  • Parag Gheewala

    Yokum's blog ( shows that he is one of the leading experts in representing start-ups. I have seen this first-hand as Yokum's partner. In addition, Yokum is terrific person. If you are looking for a skilled lawyer that is a joy to work with, Yokum is right for you.


    Parag Gheewala Licensing Attorney
    Relationship: Co-worker

Contact info

Wilson Sonsini Goodrich & Rosati

650 Page Mill Road

Palo Alto, CA, 94304-1001


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Work experience
TitleCompany nameDuration
PartnerWilson Sonsini Goodrich & Rosati2001 - Present
AssociateWilson Sonsini Goodrich & Rosati1996 - 2001
Foreign AttorneyNagashima Ohno & Tsunematsu1994 - 1995
Association namePosition nameDuration
American Bar Association, Business Law Section, Private Equity and Venture Capital Committee, Angel Venture Financing SubcommitteeChair2009 - Present
N! Leadership NetworkSecretary2008 - Present
Asian Law AllianceDirector2008 - Present
Strategic Venture AssociationAdvisorN/A
Asia-Pacific Student Entrepreneurship SocietyAdvisorN/A
Japanese American Chamber of Commerce of Silicon ValleyDirectorN/A
Legal cases
Case nameOutcome
Initial public offering of Chemoil Energy on the Singapore ExchangeN/A
Cross-border M&A between GCA and SavvianN/A
Series A venture financing and migration of Bluepulse from Australia to DelawareN/A
See all legal cases 
Publication nameTitleDate
Business Law Today (ABA)Crowdfunding: Its Practical Effect May Be Unclear Until SEC Rulemaking is Complete2012
Entrepreneurs Report: Private Company Financing TrendsAvoiding Trouble: Provisions in Previous Employment Documents that Every Start-Up Company Founder Needs to Review2009
Entrepreneurs Report: Private Company Financing TrendsNavigating Down-round and Dilitive Financings2008
Startup Company Lawyer blogStartup Company Lawyer blog2008
Entrepreneurs' Report: Private Company Financing TrendsStartup Companies and Financing Basics2007
School nameMajorDegreeGraduated
University of Chicago Law SchoolLawJD - Juris Doctor1993
University of MinnesotaPolitical ScienceBA - Bachelor of Arts1990
Speaking engagements
Conference nameTitleDate
Silicon Valley Corporate Law Update 2013Evolving Startup World2013
Early Exits: The Good, the Bad and the Ugly of Secondary PlacementsEarly Exits: The Good, the Bad and the Ugly of Secondary Placements2013
Corporate Roadmap to Success in JapanCorporate Roadmap to Success in Japan2013
Practising Law InstituteEvolving Startup World2012
Mobile MondayTop legal mistakes startups make2012
American Bar AssociationEverything you need to know about crowdfunding2012
American Bar AssociationJOBS Act in 90 Minutes: What Business Lawyers Need to Know2012
TechCrunch TokyoGo Silicon Valley2011
Stanford VC3 Speaker SeriesStartup Legal FAQs2011
CapitalyzePrivate company stock market - friend or foe?2011
WebinarSecondary Markets: Creating liquidity for angel investors2010
Stanford VC3 Speaker SeriesStartup Legal FAQs2010
Cocktails & ConversationLiquidity options for founders and early shareholders2010
Bases/BT E-BootcampLegal issues for entrepreneurs workshop2010
American Bar Association 2010 Institute for the Young Business LawyerFinancing the Emerging Growth Company2010
Alliance of Chief ExecutivesCEO Liquidity in Investor Backed Firms2010
TheFunded Founder InstituteIncorporation2009
Stanford VC3 Speaker SeriesTop Legal Mistakes that Startup Make and How to Prevent Them2009
Finance4FoundersStartup Stock Options2009
Silicon Valley Association of Startup EntrepreneursRaising Money from VCs - the Insider's Perspetive2008
Northwestern Asian Pacific American Heritage MonthMinorities and Large Law Firms2008
2008 ABA Annual MeetingBridge Financings of Emerging Growth Companies2008
Keizai Society: U.S.-Japan Business ForumLeveraging Innovations Across the Pacific2006