Isamu Akasaki

1929 - Today

Photo of Isamu Akasaki

Icon of person Isamu Akasaki

Isamu Akasaki (赤﨑 勇, Akasaki Isamu, January 30, 1929 – April 1, 2021) was a Japanese engineer and physicist, specializing in the field of semiconductor technology and Nobel Prize laureate, best known for inventing the bright gallium nitride (GaN) p-n junction blue LED in 1989 and subsequently the high-brightness GaN blue LED as well.For this and other achievements, Akasaki was awarded the Kyoto Prize in Advanced Technology in 2009, and the IEEE Edison Medal in 2011. He was also awarded the 2014 Nobel prize in Physics, together with Hiroshi Amano and Shuji Nakamura, "for the invention of efficient blue light-emitting diodes, which has enabled bright and energy-saving white light sources". In 2021, Akasaki, along with Shuji Nakamura, Nick Holonyak, M. George Craford and Russell D. Read more on Wikipedia

Since 2007, the English Wikipedia page of Isamu Akasaki has received more than 199,904 page views. His biography is available in 53 different languages on Wikipedia (up from 48 in 2019). Isamu Akasaki is the 203rd most popular physicist (down from 201st in 2019), the 119th most popular biography from Japan (down from 99th in 2019) and the 3rd most popular Japanese Physicist.

Amu Akasaki is most famous for being the inventor of the blue LED.

Memorability Metrics

  • 200k

    Page Views (PV)

  • 71.04

    Historical Popularity Index (HPI)

  • 53

    Languages Editions (L)

  • 7.49

    Effective Languages (L*)

  • 3.81

    Coefficient of Variation (CV)

Page views of Isamu Akasakis by language


Among physicists, Isamu Akasaki ranks 203 out of 721Before him are Freeman Dyson, Louis Néel, Claude-Louis Navier, Philip Warren Anderson, Abdus Salam, and John Vincent Atanasoff. After him are John Archibald Wheeler, James Cronin, James Rainwater, Wolfgang Paul, Joseph Plateau, and Edward Mills Purcell.

Most Popular Physicists in Wikipedia

Go to all Rankings


Among people born in 1929, Isamu Akasaki ranks 65Before him are Richard E. Taylor, Imelda Marcos, Gudrun Burwitz, Claes Oldenburg, Jerry Goldsmith, and Zoltán Czibor. After him are Lennart Johansson, Nicolai Ghiaurov, Werner Arber, Mike Hawthorn, Whitey Bulger, and Alfred Moisiu.

Others Born in 1929

Go to all Rankings

In Japan

Among people born in Japan, Isamu Akasaki ranks 119 out of 5,560Before him are Hōjō Tokimune (1251), Emperor Reigen (1654), Emperor Higashiyama (1675), Iwane Matsui (1878), Utagawa Kuniyoshi (1797), and Kobayashi Issa (1763). After him are Empress Kōjun (1903), Tokugawa Hidetada (1579), Kuniaki Koiso (1880), Arata Isozaki (1931), Momofuku Ando (1910), and Toyotomi Hideyori (1593).


Among physicists born in Japan, Isamu Akasaki ranks 3Before him are Hideki Yukawa (1907) and Shin'ichirō Tomonaga (1906). After him are Yoichiro Nambu (1921), Leo Esaki (1925), Makoto Kobayashi (1944), Masatoshi Koshiba (1926), Toshihide Maskawa (1940), Shuji Nakamura (1954), Hantaro Nagaoka (1865), Yoshio Nishina (1890), and Takaaki Kajita (1959).