Chapter 01
The problem with text
In 1999, NTT DoCoMo was preparing i-mode, a mobile internet service that would place messaging, weather, and information on small phone screens. Short messages could carry facts but struggled to carry tone.
Shigetaka Kurita was asked to make the interface more expressive without escaping its technical limits.
Chapter 02
A grid of 144 pixels
Each image had to fit inside a 12-by-12-pixel grid. Kurita studied manga, road signs, weather symbols, and other systems that compressed meaning into recognizable marks.
He produced 176 images for weather, emotion, transport, food, and everyday communication. They were interface tools before they were cultural artifacts.
Chapter 03
From carrier feature to standard
Other Japanese carriers adopted their own pictographs. Apple included emoji for the Japanese iPhone market, and Unicode standardization in 2010 allowed consistent encoding across devices and platforms.
A local mobile feature became global because useful design met shared infrastructure.
“I never imagined they would spread beyond Japan. I never imagined they would become what they became.”
Shigetaka Kurita
Chapter 04
The artifact in the museum
In 2016, the Museum of Modern Art acquired Kurita's original set. The archive preserves the contradiction: a work created as utility became part of design history, while its creator held no patent or royalty claim over its global use.
The lasting lesson is not to aim for universality. It is to pay close attention to a specific human problem and solve it within the constraints that actually exist.