Legal Internationals — Comprehensive legal publicationLegal Internationals · Comprehensive legal publication
Japan

Abe, Ikubo & Katayama

Abe, Ikubo & Katayama is a law firm in Japan, with 300 professionals and 93 lawyers listed on its own site. It stands No. 7 of 10 in Japan, recognised by 2 independent publishers.

Jurisdiction
Japan
Standing
No. 7 of 10 in Japan
Founded
Not stated
Professionals
300
Offices
2
Recognitions
66
Lawyers on file
93
www.aiklaw.co.jp
Japan
JapanDavid Kernan · CC BY 4.0 · Wikimedia Commons

Standing in Japan

No. 7of the top 10, recognised by 2 independent publishers

In Japan, 10 of 31 verified firms are placed: 10 placed by recognitions the firm announced from at least two independent publishers, reconciled to one figure per publisher. Firms on file without either are listed in the directory below and are not ranked. No composite score is published for Japan. The full list for Japan

Organization

0 practice areas and sectors · 93 lawyers on the firm’s site

How Abe, Ikubo & Katayama is organised, read from the titles and practice areas it publishes for each lawyer. A head is named only where the firm states one; otherwise the partner admitted earliest on record stands first and is labelled so.

93 of Abe, Ikubo & Katayama’s profiles print the firm’s whole practice list rather than the person’s own, so they are left out of the groups above; only titles the firm states are shown.

Lawyers

93 on the firm’s own site

Names, titles and practice areas as Abe, Ikubo & Katayama publishes them, senior titles first. Each name opens the firm’s own page for that person.

  • 三木 浩一 Koichi MikiAttorney at law · admitted 2004取扱業務 · General Corporate · Litigation and Dispute Resolution · 一般企業法務・コーポレート
  • 三村 晶子 Akiko MimuraAttorney at law取扱業務 · General Corporate · Litigation and Dispute Resolution · 一般企業法務・コーポレート
  • 三橋 規樹 Motoki MitsuhashiPatent Attorney取扱業務 · Intellectual Property Prosecution · 出願権利化業務 · Intellectual Property (IP)
  • 三澤 智 Satoshi MisawaAttorney at Law取扱業務 · General Corporate · Litigation and Dispute Resolution · 一般企業法務・コーポレート1 firm post
  • 上坂 望 Nozomi UesakaAttorney at Law取扱業務 · General Corporate · Litigation and Dispute Resolution · 一般企業法務・コーポレートNamed in 2 recognitions · 6 firm posts
  • 中村 閑 Nodoka NakamuraAttorney at Law取扱業務 · General Corporate · Litigation and Dispute Resolution · 一般企業法務・コーポレートNamed in 2 recognitions · 19 firm posts
  • 丸山 智裕 Tomohiro MaruyamaPatent Attorney取扱業務 · Intellectual Property Prosecution · 出願権利化業務 · Intellectual Property (IP)
  • 井口 司 Tsukasa IguchiPatent Attorney取扱業務 · Intellectual Property Prosecution · 出願権利化業務 · Intellectual Property (IP)Named in 4 recognitions · 4 firm posts
  • 井窪 保彦 Yasuhiko IkuboAttorney at Law取扱業務 · General Corporate · Litigation and Dispute Resolution · 一般企業法務・コーポレートNamed in 6 recognitions · 6 firm posts
  • 伊藤 尚 Hisashi Ito弁護士取扱業務 · General Corporate · Litigation and Dispute Resolution · 一般企業法務・コーポレートNamed in 13 recognitions · 48 firm posts
  • 佐々川 大雅 Taiga SasagawaAttorney at Law取扱業務 · General Corporate · Litigation and Dispute Resolution · 一般企業法務・コーポレート
  • 佐々木 英人 Hideto SasakiAttorney at Law取扱業務 · General Corporate · Litigation and Dispute Resolution · 一般企業法務・コーポレートNamed in 2 recognitions · 16 firm posts
  • 佐志原 将吾 Shogo SashiharaAttorney at Law取扱業務 · General Corporate · Litigation and Dispute Resolution · 一般企業法務・コーポレートNamed in 1 recognition · 6 firm posts
  • 佐藤 健太郎 Kentaro SatoAttorney at Law取扱業務 · General Corporate · Litigation and Dispute Resolution · 一般企業法務・コーポレートNamed in 10 recognitions · 12 firm posts
  • 佐藤 史華 Fumika SatoAttorney at Law取扱業務 · General Corporate · Litigation and Dispute Resolution · 一般企業法務・コーポレート
  • 佐藤 有夏 Yuka SatoPatent Attorney取扱業務 · Intellectual Property (IP) · 出願権利化業務 · Intellectual Property Prosecution
  • 佐長 功 Isao SaikiAttorney at Law取扱業務 · General Corporate · Litigation and Dispute Resolution · 一般企業法務・コーポレートNamed in 4 recognitions · 8 firm posts
  • 加藤 寛史 Hirofumi KatoAttorney at Law取扱業務 · General Corporate · Litigation and Dispute Resolution · 一般企業法務・コーポレートNamed in 3 recognitions · 9 firm posts
  • 加藤 志麻子 Shimako KatoPatent Attorney取扱業務 · Intellectual Property (IP) · 知的財産権 · Intellectual Property ProsecutionNamed in 15 recognitions · 45 firm posts
  • 北原 潤一 Junichi KitaharaAttorney at Law取扱業務 · General Corporate · Litigation and Dispute Resolution · 一般企業法務・コーポレートNamed in 16 recognitions · 59 firm posts
  • 原田 崇史 Takafumi HaradaAttorney at Law取扱業務 · General Corporate · Litigation and Dispute Resolution · 一般企業法務・コーポレート1 firm post
  • 古橋 伸茂 Nobushige FuruhashiPatent Attorney取扱業務 · Intellectual Property Prosecution · 出願権利化業務 · Intellectual Property (IP)
  • 吉光 真紀 Maki YoshimitsuPatent Attorney取扱業務 · Intellectual Property Prosecution · 出願権利化業務 · Intellectual Property (IP)
  • 坂庭 美香 Mika SakaniwaAttorney at Law取扱業務 · General Corporate · Litigation and Dispute Resolution · 一般企業法務・コーポレート3 firm posts

Directory placements

4 practice areas · read from the publishers’ tables

Where the directories place Abe, Ikubo & Katayama, practice area by practice area, as each table stands on the publisher’s own site. Each cell links to that table. The columns are the same on every page of this site.

Practice areaChambersThe Legal 500
Intellectual PropertyBand 1Tier 1
Litigation and Disputes—Tier 2
Restructuring and InsolvencyBand 3Tier 2
Healthcare and Life SciencesBand 3—

Recognition

66 announcements

What other publishers have said, as Abe, Ikubo & Katayama reports it on its own site, with the lawyers each announcement names. Each entry links to the page where it was read.

  • ChambersBand 12026

    Intellectual Property: Domestic

    “Chambers Asia-Pacific 2026: Band 1, Intellectual Property: Domestic, Japan”

    Chambers’s published table

  • ChambersBand 32026

    Life Sciences

    “Chambers Asia-Pacific 2026: Band 3, Life Sciences, Japan”

    Chambers’s published table

  • ChambersBand 32026

    Restructuring/Insolvency

    “Chambers Asia-Pacific 2026: Band 3, Restructuring/Insolvency, Japan”

    Chambers’s published table

  • The Legal 500Tier 22026

    Dispute resolution: Independent local firms

    “The Legal 500 Asia Pacific 2026: Tier 2, Dispute resolution: Independent local firms, Japan”

    The Legal 500’s published table

  • The Legal 500Tier 12026

    Intellectual property: Independent local firms

    “The Legal 500 Asia Pacific 2026: Tier 1, Intellectual property: Independent local firms, Japan”

    The Legal 500’s published table

  • The Legal 500Tier 22026

    Restructuring and insolvency: Independent local firms

    “The Legal 500 Asia Pacific 2026: Tier 2, Restructuring and insolvency: Independent local firms, Japan”

    The Legal 500’s published table

From the Firm

What Abe, Ikubo & Katayama has published on its own site lately: news, deals, recognitions and publications. Each links to the firm.

Sponsored: guides and chapters the firm wrote

Written by the firm. Practice guide chapters are placed with the publishers that carry them, usually for a fee. Listed for the reader’s use; never counted in the firm’s standing.

Record

Jurisdiction
Japan
Founded
Not stated
Entity source
The firm's own website
Firm’s site read
10 Nov 2026

Read from: headcount

On its size, the firm says: “…300 lawyers, as stated on the firm's The Legal 500 profile…”

Other firms in Japan

Bar associations, in-house counsel bodies and arbitral institutions, by market · 86

Korean Bar Association대한변호사협회Korea In-house Counsel Association한국사내변호사회Japan Federation of Bar Associations logoJapan Federation of Bar AssociationsJapan In-house Lawyers Association logoJapan In-house Lawyers AssociationAll China Lawyers Association logoAll China Lawyers AssociationLaw Society of Hong Kong logoLaw Society of Hong KongHong Kong Corporate Counsel AssociationTaiwan Bar Association logoTaiwan Bar AssociationLaw Society of SingaporeSingapore Corporate Counsel AssociationBar Council of IndiaIndian Corporate Counsel AssociationLaw Society of England and WalesBar Council of England and WalesAmerican Bar AssociationAssociation of Corporate CounselCanadian Bar Association logoCanadian Bar AssociationCanadian Corporate Counsel AssociationLaw Council of Australia logoLaw Council of AustraliaBundesrechtsanwaltskammer logoBundesrechtsanwaltskammerBundesverband der UnternehmensjuristenBUJConseil national des barreaux logoConseil national des barreauxAssociation Française des Juristes d'Entreprise logoAssociation Française des Juristes d'EntrepriseOrdem dos Advogados do BrasilOABLaw Society of South Africa logoLaw Society of South AfricaNigerian Bar Association logoNigerian Bar AssociationIstanbul Bar Association logoIstanbul Bar AssociationIsrael Bar Associationלשכת עורכי הדיןKorean Commercial Arbitration Board대한상사중재원Japan Commercial Arbitration Association日本商事仲裁協会China International Economic and Trade Arbitration Commission logoChina International Economic and Trade Arbitration CommissionHong Kong International Arbitration Centre香港國際仲裁中心Singapore International Arbitration CentreAsian International Arbitration Centre logoAsian International Arbitration CentreThai Arbitration InstituteสถาบันอนุญาโตตุลาการVietnam International Arbitration Centre logoVietnam International Arbitration CentreIndonesian National Board of Arbitration logoIndonesian National Board of ArbitrationPhilippine Dispute Resolution Center logoPhilippine Dispute Resolution CenterMumbai Centre for International Arbitration logoMumbai Centre for International ArbitrationChinese Arbitration Association, Taipei logoChinese Arbitration Association, TaipeiLondon Court of International ArbitrationICC International Court of Arbitration logoICC International Court of ArbitrationGerman Arbitration InstituteDeutsche Institution für SchiedsgerichtsbarkeitSwiss Arbitration Centre logoSwiss Arbitration CentreNetherlands Arbitration Institute logoNetherlands Arbitration InstituteMilan Chamber of Arbitration logoMilan Chamber of ArbitrationMadrid International Arbitration CenterCentro Internacional de Arbitraje de MadridArbitration Institute of the Stockholm Chamber of Commerce logoArbitration Institute of the Stockholm Chamber of CommerceIstanbul Arbitration Centreİstanbul Tahkim MerkeziDubai International Arbitration Centre logoDubai International Arbitration CentreSaudi Center for Commercial Arbitration logoSaudi Center for Commercial ArbitrationIsraeli Institute of Commercial Arbitrationהמוסד הישראלי לבוררות עסקיתLagos Court of ArbitrationArbitration Foundation of Southern Africa logoArbitration Foundation of Southern AfricaAmerican Arbitration Association, ICDR logoAmerican Arbitration Association, ICDRADR Institute of CanadaInstitut d'arbitrage et de médiation du CanadaCentro de Arbitraje de México logoCentro de Arbitraje de MéxicoCAM-CCBCCentro de Arbitragem e Mediação da Câmara de Comércio Brasil-CanadáAustralian Centre for International Commercial Arbitration logoAustralian Centre for International Commercial ArbitrationInternational Centre for Settlement of Investment DisputesPermanent Court of ArbitrationCour permanente d'arbitrageIntegrated Bar of the PhilippinesMalaysian BarMajlis Peguam MalaysiaLawyers Council of Thailand logoLawyers Council of ThailandVietnam Bar FederationLiên đoàn Luật sư Việt NamIndonesian Advocates Association logoIndonesian Advocates AssociationMacau Lawyers Association澳門律師公會Law Society of IrelandDlí-Chumann na hÉireannGerman Bar AssociationDeutscher AnwaltvereinParis Bar logoParis BarConsiglio Nazionale ForenseConsejo General de la Abogacía EspañolaNetherlands Bar logoNetherlands BarSwiss Bar AssociationSchweizerischer AnwaltsverbandSwedish Bar Association logoSwedish Bar AssociationUnion of Turkish Bar AssociationsTürkiye Barolar BirliğiFederal Chamber of Lawyers of the Russian Federation logoFederal Chamber of Lawyers of the Russian FederationDubai Legal Affairs Department logoDubai Legal Affairs DepartmentSaudi Bar Associationالهيئة السعودية للمحامينLegal Practice Council of South AfricaBarra Mexicana, Colegio de Abogados logoBarra Mexicana, Colegio de AbogadosColegio Público de la Abogacía de la Capital FederalInternational Bar Association logoInternational Bar AssociationLAWASIA logoLAWASIAUnion Internationale des Avocats logoUnion Internationale des AvocatsInter-Pacific Bar Association logoInter-Pacific Bar Association