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Yuma Mitsui

​三井 佑馬

Service Designer

Address

Tokyo, Japan

Contact

ユーザーが
心から選びたくなる未来、
をつくる。

「ユーザーが心から選びたくなる未来、をつくる。」をモットーに、様々なリサーチ手法で人々の行動・感情・文化的文脈を深く捉え、そこから得たインサイトをチームや組織が進むべき方向性へと結晶させることに強い情熱を持つUXリサーチャー/インサイトストラテジスト。 大学院修了後、GKインダストリアルデザイン、btrax(東京・サンフランシスコ)、AKQA ukaにて約10年間、製造業・モビリティ・SaaS・食品など多様な産業でリサーチおよびコンセプト開発をリード。瀬戸内海フェリー「SEA PASEO」の全体コンセプト策定、JR東日本「JRE GO」のCXビジョン立案、SUBARUの米国市場向けデジタルサービス開発など、インサイトが実際のビジネス判断や体験設計を動かしたプロジェクトを複数牽引。 定性・定量を問わずリサーチを設計・実施する力に加え、共創ワークショップのファシリテーション、体験設計、研修プログラムの開発・講師など、リサーチを起点に幅広い役割を担う。国内のみならず、インド・アフリカ・米国でのフィールドリサーチ経験を持ち、文化的文脈の異なる生活者への理解にも強みを持つ。

Global Challenge! Startup Team Fukuoka (2020〜2022)、加賀市グローバルスタートアップ育成プログラム (2021) 講師。主な受賞作にグッドデザイン賞ベスト100など。

趣味は愛犬の散歩と、建築巡り。

Design futures for users to experience delight with all their hearts.

With the motto of “Designing a future that users will truly want to choose," Yuma is a Research & Insights Lead with a deep passion for uncovering the behaviors, emotions, and cultural contexts of people through a wide range of research methods — and crystallizing those insights into a clear direction for teams and organizations to move forward. Over the past decade, following graduate school, he has led research and concept development across diverse industries — manufacturing, mobility, SaaS, and food — at GK Industrial Design, btrax (Tokyo and San Francisco), and AKQA uka. He has driven multiple projects where insights directly shaped business decisions and experience design, including the overall concept for the Seto Inland Sea ferry SEA PASEO, the CX vision for JR East's digital service JRE GO, and a new digital service for SUBARU in the U.S. market. His strengths span the full research lifecycle — designing and executing both qualitative and quantitative studies — as well as co-creation workshop facilitation, experience design, and training program development. Beyond Japan, he brings field research experience across India, Africa, and the U.S., with a particular strength in understanding people across diverse cultural contexts.

 

He is also a lecturer for Global Challenge! Startup Team Fukuoka (2020-2022) and Kaga City Global Startup Development Program (2021). Major awards include the Good Design Award Best 100.

Hobbies are walking his dog and visiting architectures.

  • M.A in Design Strategy from Kyushu University Graduate School of Design [2015.3]

  • PSSD course at Politecnico di Milano [2014.9 - 2015.2, exchange program]

  • B.A in Environment and Information Studies from Keio University [2011.3]

  • B.A in Business and Commerce from Keio University [2009.3]

Skill
  • Qualitative UX research

  • Ethnographic fieldwork

  • Survey

  • Competitive audit

  • Synthesis and Analysis

  • Concept development

  • Brainstorming sessions

  • Doodle sketch

  • UI design

  • UX prototyping

  • Lecture and Workshop facilitation of Design Thinking

  • Co-Design workshop/Design Sprint facilitation

  • Presentation

Tool
  • Illustrator, Photoshop, Adobe XD, Premiere

  • Figma, FigJam

  • Miro

  • iMovie

  • Google Slides, Microsoft Office

  • Slack, Teams, Asana

  • Zoom

Language
  • Japanese [Native]

  • English [Intermediate]

  • Italian [Novice]

  • ホワイトLinkedInのアイコン
  • ホワイトInstagramのアイコン
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