Profile

Born

1989

Education

Waseda University早稲田大学

Career

Entrepreneur, angel investor, critic, and commentator. Editor-in-chief of the online news outlet The HEADLINE. Invited lecturer at Waseda University (2023).起業家、エンジェル投資家、評論家、コメンテーター。インターネットニュースメディア『The HEADLINE』編集長。早稲田大学2023年度招聘講師。

Videos featuring this thinker

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  [Redefined] What Should Media Sell in an Era Where Philosophy and AI Are Directly Connected? (Isoda Takeshi / Takaki Shimpei) ↗

  【再定義】哲学とAIが直結する時代に、メディアは何を売るべきか？（石田健 / 高木新平）

  深夜1時の経営者ラジオ「インサイドビジョン」@日曜21:00配信·2026-06-06+Watched?

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  Takeshi Ishida - Sign of the Times, Episode 000 ↗

  石田健 - Sign of the Times, Episode 000

  The HEADLINE - 専門知とテクノロジーから未来を見通す·2026-03-08+Watched?

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  [Unaired Scenes] Takeshi Ishida ("Ishiken") Walks Through Nishi-hori Rosa, Niigata City's Underground Shopping Street - How Do You View Urban Redevelopment? ↗

  【未放送シーン】“イシケン”こと石田健さんが新潟市の地下街「西堀ローサ」を歩く　都市再開発どう見る？

  TeNY新潟一番ニュース·2026-01-07+Watched?

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  [Notice] Takeshi Ishida ("Ishiken") to Make Live Appearance at "Niigata #1" Studio on December 4th ↗

  【お知らせ】12月4日「新潟一番」スタジオで石田健（イシケン）さん生出演へ

  TeNY新潟一番ニュース·2025-12-08+Watched?

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  [Live Appearance] Takeshi Ishida, Familiar as a DayDay Commentator, Provides Commentary on "Niigata #1" [[Niigata] [Niigata] ↗

  【生出演】DayDay.コメンテーターでもおなじみ石田健さんが新潟一番で解説《新潟》《新潟》

  TeNY新潟一番ニュース·2025-12-08+Watched?

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  [Bring Down the Approval Rating!] Audio Distribution Before Press Conference Explodes! What Should Political Coverage by Mass Media Be? [Takeshi Ishida vs Ryosuke Nishida vs Shinji Ishimaru vs Taku Sugakawa vs ReHacQ] ↗

  【支持率下げてやる！】会見前の音声配信が大炎上！マスメディアの政治報道のあり方とは？【石田健vs西田亮介vs石丸伸二vs須賀川拓vsReHacQ】

  ReHacQ−リハック−【公式】·2025-11-08+Watched?

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  [Elite-Haters Flip the World] THE HEADLINE Editor-in-Chief Takeshi Ishida ("Ishiken") / How the World Changes with the Rise of "Destroyers" / Destroying Politics and Media / The End of Entrenched Elite Power [1on1] ↗

  【エリート嫌いが世界をひっくり返す】The HEADLINE編集長・石田健（イシケン）／“破壊者”の台頭で世界はどう変わる？／政治やメディアを破壊／既得権益化したエリートの末路【1on1】

  TBS CROSS DIG with Bloomberg·2025-11-08+Watched?

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  Is It Appropriate to "Take Down Weekly Magazine Negative Reports on Celebrity Advertisement Models ⇒ Withdraw Them"? Thinking About "What is Human Rights Fundamentally" with Takeshi Ishida ↗

  「広告起用タレントに週刊誌ネガ報道⇒取り下げ」は適切？ 石田健と考える“そもそも人権とは”

  THE CREATIVE ACADEMY·2025-09-09+Watched?

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  Does It Make Sense to "Raise Criticism Against News"? When I Asked Takeshi Ishida, He Said "Justice is Not a Matter of Opinion for Everyone" ↗

  “ニュースに批判の声を上げる”って意味ある？ 石田健さんに聞いたら「正義は人それぞれ、ではない」と諭された

  新R25チャンネル·2025-07-06+Watched?

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  [Exposing the True Face] Takeshi Ishida, Who Became a Topic for "Becoming Secondary Harm to Women", Was Actually Super Eager to Be Popular! Mayu Yamaguchi Digs Deep Into Ishiken's Past and Present! (Also Said on WEB "If You Say That Far") [Zetsumetsu Says That Far Committee NP] ↗

  【素顔を暴く】「女性への2次加害になる」で話題の石田健はスーパーモテたい男子だった！山口真由が過去から現在までのイシケンを根掘り葉掘り深掘り！（WEBでも言って委員会）【そこまで言って委員会NP】

  【公式】そこまで言って委員会NP·2025-07-06+Watched?

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  Ryosuke Nishida's Deep Contemplation "Does Japan's Media Have a Future!?" Guest: Takeshi Ishida ↗

  西田亮介の深層熟考「日本のメディアに未来はあるか!?」ゲスト：石田健

  サンデー毎日チャンネル【公式】·2025-07-06+Watched?

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  Takeshi Ishida / Fuji TV 10-Hour Press Conference - Blonde Reporter Who Stopped Runaway / Later Called by Fuji, Why They Crashed into Weekly Bunshun... ↗

  石田健/フジ10時間会見 暴走記者止めた金髪/後日フジから呼び出し週刊文春凸した訳…

  街録ch〜あなたの人生、教えて下さい〜·2025-07-06+Watched?

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  [What is "Counter-Elite"] Trump, Vance, Peter Thiel... Why Do They Rise in Opposition to Entrenched Elite Power? Takeshi Ishida ("Ishiken") Provides Thorough Explanation / The Silicon Valley = Liberal Framework Is Beginning to Change ↗

  【「カウンターエリート」とは】トランプ、ヴァンス、ピーター・ティール…既得権益化したエリートに対抗する形でなぜ台頭？石田健（イシケン）が徹底解説／シリコンバレー＝リベラルの構図は変化し始めている

  PIVOT 公式チャンネル·2025-07-06+Watched?

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  Fuji TV Press Conference - Risk of "Secondary Harm" Through Questions and THE HEADLINE's Takeshi Ishida Raises Awareness, Receives Supportive Applause ↗

  フジテレビ会見 質問による「２次加害」のおそれと The HEADLINEの石田健さんが注意喚起　賛同の拍手も

  デイリースポーツ【公式】·2025-07-06+Watched?

Books

• Practice! Denture Treatment in Dental Home Care: Providing the Best Dentures Until the End ↗

  実践!歯科訪問診療における義歯治療 : 少しでも良い義歯を最期まで

  医歯薬出版·2026-06-01

• Business Registration Practices for Medical Corporations ↗

  医療法人の登記実務

  テイハン·2026-05-01

• One Minute a Day! English-Language Newspapers ↗

  1日1分!英字新聞

  祥伝社·2026-04-01

• Overview of Agricultural Corporations and Business Registration Practices for Agricultural Cooperative Associations ↗

  農業法人の概要と農事組合法人の登記実務

  テイハン·2026-03-01

• Vending Machine Enthusiast! Introducing Must-Visit Vending Machines Now! Not Just Beverages, But a Fascinating World of Vending Machines! ↗

  自動販売機マニア! : いま会いに行きたい自販機をご紹介!飲み物だけではない、魅惑の自販機の世界へ

  イカロス出版·2026-03-01

• Learning About the Social Welfare System ↗

  生活保護制度を学ぶ

  恒春閣·2026-02-01

• Business Registration Practices for General Mortgage Rights ↗

  根抵当権の登記実務

  テイハン·2026-02-01

• Business Practices and Theory of Registration by Court Judgments: From the Perspective of Litigation Objects and Requirement of Facts ↗

  判決による登記の実務と理論 : 訴訟物・要件事実の観点を踏まえて

  テイハン·2025-12-01

• Agricultural and Agricultural Land Succession: For the Realization of Sustainable Agriculture ↗

  農業と農地の承継 : 持続可能な農業の実現のために

  恒春閣·2025-11-01

• Business Registration Practices for General Partnerships, Limited Partnerships, and Limited Liability Companies ↗

  合名会社・合資会社・合同会社の登記実務

  テイハン·2025-07-01

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  Textbook of Financial Planning and Legal Practice ↗

  ファイナンシャルプランニングと法務の教科書

  恒春閣·2025-06-01

• Counter-Elite ↗

  カウンターエリート

  文藝春秋·2025-04-01

• Hitachi's Satake ↗

  常陸之佐竹

  常陸佐竹研究会·2025-03-01

• Five Dwarves and the Forest Treasure ↗

  5人の小人と森の宝

  長野県伊那市役所地域創造課·2025-03-01

• Registration Practice of Preferred Shares, Capital Changes, and Stock Options ↗

  種類株式・増減資・新株予約権の登記実務

  テイハン·2025-03-01

• Civil Trust Lectures ↗

  民事信託講義

  テイハン·2024-10-01

• Practice of Estate Distribution: Formats and Theory of Agreement Documents, Mediation-Related Documents, Inheritance Registration, and Heir Notification Registration ↗

  遺産分割の実務 : 協議書・調停関係書類・相続登記・相続人申告登記の書式と理論

  テイハン·2024-05-01

• Practice of Wills: Creation of Wills and Duties of Executors ↗

  遺言の実務 : 遺言の作成・遺言執行者の職務について

  テイハン·2024-02-01

• Comprehensive Chemistry Experiments ↗

  総合化学実験

  丸善出版·2023-12-01

• Inheritance Planning and Adult Guardianship for LGBTQ People ↗

  LGBTQの相続対策と成年後見

  テイハン·2023-10-01

Articles

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