ATTOR NEYSOSAKAAs a boutique law firm focused on antitrust andconsumer law-related fields, Ikeda & Someya boasts thelargest team in Japan with 2 offices (Tokyo and Osaka)and strives for optimal results for our clients.

Ikeda & Someya was founded on October 1, 2018 as a law firm specializing in antitrust
law, consumer law and related fields.
With our firm’s two founding partners having work experience at the Japan Fair TradeCommission (Mr. Ikeda) and at Japan’s Consumer Affairs Agency (Mr. Someya), they
have used their respective work experience at regulatory agencies to lead the way aslawyers in cutting-edge legal practices in antitrust law and consumer laws.
Since its founding, Ikeda & Someya has augmented its team primarily with lawyers
with governmental experience and actual corporate legal experience, and currently
has evolved into one of Japan’s leading firms with unparalleled expertise in the fieldsof antitrust and consumer law (including laws related to privacy and data).
With the opening of our Osaka office in May 2022, we will create an infrastructure
capable of meeting our clients’ needs throughout Japan, and will continue to expand
even more.

Providing solutions, based on front-line experience at regulatory agencies,
An Antitrust and Consumer Law Firm with a New Approach for a New Era

TOKYOFounding Partner

Founding Partner

LPC Partner

Tsuyoshi Ikeda(Yoshi)Takaaki Someya(Taka)

Yuri Kawasaki

Aya Yasu

050-1745-4777
tsuyoshi.ikeda!ikedasomeya.com

050-1745-4001
takaaki.someya!ikedasomeya.com

050-1745-6006
yuri.kawasaki!ikedasomeya.com

050-1745-6886
aya.yasui!ikedasomeya.com

20022009

2008

Graduated from School of Law, Chuo University

1996

Graduated from Sophia University (LL.B.)

2009 - 11

Worked as Public Prosecutor, Tokyo District Public Prosecutors Office2010

Graduated from Columbia Law School (LL.M.)

2011 - 13

Worked as Public Prosecutor, Fukui District Public Prosecutors Office2017 - 19

Worked at Mitsubishi Motors Corporation, Legal Division2015 - 16

Worked at the Consumer Affairs Agency

Graduated from Kyoto University (LL.B.)

2005 - 07

Worked at Japan Fair Trade Commission, Investigation Bureau

2008

Graduated from University of California Berkeley Law School2008 - 09

Worked at Kirkland & Ellis LLP (Chicago)

2009

Registered as attorney in New York and California

2012 - 142014 - 16

Graduated from School of Law, Senshu University
Worked as in-house counsel at Kakaku.com, Inc., Legal Department.
Worked at the Consumer Affairs Agency

Head of Osaka Office

Chiharu Habukawa

Hiiro Hosokawa

Satoshi Imamura

Muneharu Yamamoto050-1745-5055
chiharu.habukawa!ikedasomeya.com

050-1745-7423
hiiro.hosokawa!ikedasomeya.com

050-1745-7435
satoshi.imamura!ikedasomeya.com

050-1753-5050
muneharu.yamamoto@ikedasomeya.com

2006

Graduated from School of Law, Kyoto University

2013

Graduated from School of Law, University of Tokyo

Graduated from School of Law, Kyoto University

Worked at Consumer Affairs Agency, Representation Division2015 - 22

Worked at Yabuki Law Offices

20132016 - 1720142014 - 18

2015 - 22

Worked at Nagashima Ohno & Tsumematsu

2018 - 19

Worked at Ministry of Economy, Trade and Industry, Economic and2022

Graduated from UCLA School of Law

2017 - 20

Industrial Policy Bureau, Intellectual Property Policy Office2019 - 21

Worked at Japan Fair Trade Commission, Investigation Bureau

Graduated from Osaka University Law School
Osaka University, Intellectual Property Center, Specially appointedresearch/fellow (2017 Specially appointed assistant professor)
Worked at Ministry of Internal Affairs and Communications,
Telecommunications Bureau, Telecommunications Business Department,
Second Telecommunications Consumer Policy Division

Yuki Koshita

Hiroko Fukushima

Makuya Tanaka

Saera Ito050-1745-4977
yuki.koshita!ikedasomeya.com

050-1745-7435
hiroko.fukushima!ikedasomeya.com

050-1745-7511
makuya.tanaka@ikedasomeya.com

050-1745-2323
saera.ito@ikedasomeya.com

2018

Graduated from School of Law, University of Tokyo

Graduated from Waseda Law School, Waseda University

2013

Graduated from School of Law, Hitotsubashi University

Worked at Tokyo International Law Office2002 - 03
2005 - 07

20192019 - 20

2020 - 23

Worked at Tokyo Hatchobori Law Office2015 - 21

Worked at Japan Fair Trade Commission, General Secretariat2018 - 20

Worked at Ministry of Economy, Trade and Industry

2008 - 09
2009 - 122016

Worked at K.K. Kyodo News, Editorial OfficeWorked for the Ministry of Foreign Affairs Economic Cooperation Bureau(at that time) , Embassy of Japan in Morocco
Worked at Kyodo Public Relations Co., Ltd
Worked for the Ministry of Foreign Affairs General Foreign Policy Bureau
Graduated from University of Tokyo, Graduate Schools for Law and Politics

Special Counsel

Special Counsel

Shin-ichiro Hayashi

Myongwon Lee

Tsuneo Matsumoto

Yoshiharu Ojima

050-1753-5775
shinichiro.hayashi@ikedasomeya.com

050-1753-5555
myongwon.lee@ikedasomeya.com

050-1745-4747
tsuneo.matsumoto!ikedasomeya.com

050-1753-7700
yoshiharu.ojima!ikedasomeya.com

2016

Graduated from School of Law, Chuo University

2016

Graduated from Department of Law, Faculty of Law, Keio University

1991

2004 - 05

2017 - 21

Worked at Japan Fair Trade Commission, General Secretariat (served in the2020

Graduated from Keio University Law School2009 - 11

Worked as Professor, at Faculty of Law, Hitotsubashi University
Served as Chairman of Consumer Commission, Cabinet Office

Coordination Division, the Investigation Bureau, and the Economic Research2013 - 20

Served as Chairman of National Consumer Affairs Center of JapanOffice)2015

Appointed Professor Emeritus, Hitotsubashi University

2007201220162017 - 22

Tokyo District Public Prosecutors Office, Special Investigation Department,Deputy Director
Tokyo District Public Prosecutors Office, Special Trial Department, Director
Public Security Intelligence Agency, Deputy Director-General
Nagoya District Public Prosecutors Office, Chief Prosecutor
Member of Japan Fair Trade Commission

P R ACTIC E S

SER VI CES

Antitrust and Competition Law
The broad range of gray areas in theinterpretation of antitrust/competition laws
makes it difficult to provide effective advice
without the perspective of theantitrust/competition authorities and sufficient
practical experience. Based on Ikeda &Someya’s extensive domestic and international
experience in all aspects ofantitrust/competition law (including theSubcontract Act), from conventional issues
such as responses to on-site inspections (dawnraids) and regulatory investigations to
cutting-edge issues, we are the leaders for thepractice of antitrust/competition law in Japan.

・ Response to on-site inspections(dawnraids) and investigation procedure by
the Japan Fair Trade Commission
・ Antitrust and competition law advice
・ Response to antitrust law violations
by other companies
・ Merger reviews and business alliances/ joint venture
・ Dealing with issues related to foreigncompetition laws
・ Subcontract Act
・ Intellectual property rights andantitrust law
・ Antitrust law compliance

We understand that merely responding to clients
about legality and illegality based on our expertise
may be insufficient for our clients to address theirchallenges. For this reason, one of Ikeda &Someya’s fundamental principles is being “solutionoriented”, proposing realistic solutions to real
problem solving and supporting our clients inachieving them.
At Ikeda & Someya, in addition to general legal
consultation and handling various matters, weoffer a variety of packaged services and proactively
provide services such as conducting in-houseseminars and training and serving as outside
directors. Depending on the nature of the matter,in addition to a time-charge basis and a retainer
fee system, we are willing to establish a flexible fee
structure. Please feel free to contact us for more
information.

Consumer Law
We define “consumer law” as all laws andregulations, which a company doing consumer
business has to deal with. Without anunderstanding of the legal operations ofadministrative agencies, it is impossible to
make practical judgments in consumer law,
including the Act against Unjustifiable
Premiums and Misleading Representations. Our
firm has handled many consumer-law cases,
including cases involving cease and desist
orders and surcharge payment orders underthe Act against Unjustifiable Premiums andMisleading Representations.

Package Services
・ Responding to amended laws(antitrust laws, pharmaceutical and medical device laws, etc.)
・ Management system for labeling and advertisements. (including IPO support)
Business combination for third-party stakeholders
・ Claims and complaints for victims under the antitrust laws
・ Responding to protection/management of users’ information for regulations for external
data transmissions (Cookie Law)
・ Responding to upsell/mail order regulations for the Act on Specified CommercialTransactions
・ Responding to stealth marketing regulations
・ Responding to consumption tax invoice systems (+ price pass-through/new freelance law)

Other Services

・ In-house training (in-person/online)
・ Support for legislative changes (lobbying)・ Membership on internal investigation committees

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・ Act against Unjustifiable Premiums
and Misleading Representations /Other labeling regulations
・ Personal information / Privacy
・ Whistleblower system
・ Terms of use / Terms of agreement
・ Pharmaceutical and medical device law
・ Consumer safety / PL (Product Liability)
・ Consumer payments / FinTech
・ Act on Specified Commercial Transactions
・ Consumer Contract Act・ Consumer litigation / Handling ofclaims from consumer groups

・ Second opinions
・ Outside directorships*OUIF/JLLFJ$PSQPSBUF-FHBM5BY"GGBJSTBOE-BXZFS4VSWFZJO 5TVZPTIJ*LFEB PVS'PVOEJOH1BSUOFS XBTTFMFDUFEBTȯTFDPOEPWFSBMMȰBT
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Privacy / information laws

OFFI CE I NFOR MATI ON
OF F IC E MAIN. +81 50 1745 4000

Yurakucho ITOCIA Office Tower 16th floor,
2-7-1 Yurakucho, Ciyoda-ku Tokyo 100-0006,
Japan

Osaka Dai-ichi Life Bldg.15th floor,
1-8-17 Umeda, Kita-ku, Osaka 530-0001,
Japan

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・ General corporate
・ International affairs
・ SDGs / Business and human rights
・ Bribery regulations (including thePolitical Funds Control Act)・ Act Concerning Special Measures for
Correcting Practices ImpedingConsumption Tax Pass-on, etc.
・ Trade law / International Economic Law
・ Main industries of expertise:
Healthcare, gaming, finance,telecommunications,food products etc.

E -MAIL . i n fo@ ikedasomeya.com

OSAKA

Other Related Practices and Industries
In addition to the unparalleled capability ofantitrust/competition and consumer law cases,
we are proud to offer our strong capability inthe related and neighboring areas. Further, weare also familiar with legal issues specific toeach industry, including various business andregulatory laws, as an independent boutique
law firm, we can offer flexible service in a
cost-efficient way without fear of conflict ofinterest. We are confident that we can be yourlaw firm of choice for various matters inaddition to antitrust/competition andconsumer matters.

FA X . +81 3 6261 7700

TO K Y O

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・ Act on the Protection of Personal
Information
・ Telecommunications Business Act
・ Response to foreign laws andregulations (GDPR, etc.)
・ Act on Specified Commercial
Transactions
・ Privacy Protection
・ Data Protection
・ Response to information leakage
・ Cyber SecurityTokThe importance of information laws, which areclosely related to the fields of antitrust laws andconsumer laws, is on the rise. In particular, as
the range of privacy issues expands relative toinnovation (technological innovation), it isessential to pay attention not only to the Act on
the Protection of Personal Information but toother regulations as well, since related laws arebeing frequently revised. Our firm provides
practical advice based on cutting-edge trends
from lawyers experienced with, among otherthings, governmental agencies andgovernmental review commissions.

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