Chiho SasakiDirector・Founder

Chiho founded infield design in 2004. As an human experience designer, she has been integrating human factors perspective to clients’ both international and domestic design practices. She also has been serving as a juror at Good Design Award, sponsored by the Ministry of Economy, Trade, and Industry.
Chiho was a human factors specialist and interaction designer in IDEO’s Tokyo studio. Since joining IDEO Japan in 1999, Chiho had collaborated with global teams on a wide range of design programs including medical and nursing products, communication devices, and food and beverage innovations by translating Japanese culture to global markets. Her major clients at IDEO include Pepsi, Eli Lilly, P&G, Baxter, KDDI, NTT DoCoMo, AOL, Canon, and Sony. Prior to joining IDEO, Chiho worked as a graphic designer at GK Graphics in Tokyo.
Chiho holds a masters of design in human-centered communications design from the Institute of Design, Illinois Institute of Technology in Chicago, and a bachelor of arts degree in graphic design from Aichi Prefectural University of Fine Arts and Music.

Takashi SasakiDirector

Takashi joined infield design in 2005, bringing a rich experience of branding, marketing, and strategic planning. As a partner, he also manages the firm’s BD activities, public relations, and finance.
Before joining the firm, Takashi spent five years engaged in start-up management in IT consultancy business. Throughout this period, he was heavily involved in business planning and development, corporate branding, and PR.
Prior to his entrepreneur career, Takashi worked for Coca-Cola Japan as a marketing manager, where he produced marketing initiatives for major sport events such as Olympic Games and World Cup.
He started his career at GK as a graphic designer. He designed large-scale brand identity programs, major one of which is EUNOS, a dealer network for MAZDA.
Takashi earned his MBA from Kelley School of Business, Indiana University Bloomington, and his BA in graphic design from Tama Art University.

Keiko IharaHuman factors

Keiko works freelance and collaborates with infield design in ethnographic research since 2004. She also writes and translates articles contributing to design magazines and books. She currently teaches at Sagami Women’s University and has served as visiting associate professor at Kyushu University’s User Science Institute from 2005 to 2009.
Before going on her own in 2003 she has worked with GK Design Group as a human factors researcher/concept planner, conducting and analyzing research in various fields from kitchen utensils, consumer electronics, everyday clothing to public furniture, cars and motorcycles, drawing design concept proposals from the researches. Projects include both marketed products and future concepts for products or technologies.
Keiko earned her BA in aesthetics and art history from Tokyo University of Fine Arts and Music.


Haruka works for infield design from 2014, contributing in design research, video creation, graphic design and illustrations. Before joining the firm she has worked for a video production firm, visiting and having interviews with people all over Japan. Her interest in local residents of different places goes back to when she was a student and her projects focusing on communication, such as asking people on the street to collaborate in a drawing and completing it by the hands of 50 people she met in one day, or collecting people’s favorite words in their own writings. Haruka earned her BA in the Department of Design and Crafts of the Aichi Prefectural University of Fine Arts and Music, and has received a series of awards for her creative work in short movies (Award of Excellence in OLYMPUS Tough CM Contest 2011, CBC Award in Sakae Movie Award 2011, Top Award in Sakae Movie Award 2012).

Kunikazu AmagasaResearch fellow

Kunikazu works freelance and collaborates with infield design in human factor projects since 2007. His research interests include people’s ordinary lives, media practices and communities. He has been also engaged in many ethnographic/social research projects as a ph.D candidate at Keio University and as a researcher of Fujisawa city government.
At Keio University, he has been actively participating in joint researches with mobile carriers, telecom companies, contents providers, and device makers, where he conducted ethnographic research and designed future concepts of daily life and media use.