Science and Technology in Japan

Cards · 52

Shinkansen

The world's first high-speed bullet train network, introduced in 1964 to connect Tokyo and Osaka efficiently and safely.

Blue LED

Invented by Akasaki, Amano, and Nakamura in the early 1990s, completing the RGB spectrum to enable energy-efficient white LED lighting.

Lithium-ion Battery

Commercialized by Akira Yoshino and Sony in 1991, providing lightweight, rechargeable power for portable electronics and electric vehicles.

Induced Pluripotent Stem Cells (iPSCs)

Developed by Shinya Yamanaka in 2006, reprogramming adult somatic cells into pluripotent stem cells without using human embryos.

Autophagy Mechanisms

Elucidated by Yoshinori Ohsumi in the 1990s using yeast cells, uncovering how cells degrade and recycle cellular components.

Carbon Nanotubes

Discovered in cylindrical form by Sumio Iijima in 1991 at NEC, sparking extensive research in nanotechnology and materials science.

Meson Theory of Nuclear Forces

Proposed by Hideki Yukawa in 1935, predicting the existence of the pion to explain the strong interaction holding atomic nuclei together.

Quantum Electrodynamics (Covariant Formulation)

Formulated independently by Sin-Itiro Tomonaga in 1943 to resolve infinite quantities in relativistic quantum field theory.

CP Violation (Kobayashi-Maskawa Matrix)

Formulated in 1973 to explain matter-antimatter asymmetry by predicting at least three generations of quarks.

Super-Kamiokande

A giant underground neutrino observatory that proved neutrinos have non-zero mass via atmospheric neutrino oscillations in 1998.

Nihonium (Nh, Element 113)

The first synthetic element discovered in Asia, synthesized by Kosuke Morita's team at RIKEN between 2004 and 2012.

Statins

Discovered by Akira Endo in the 1970s via the fungus Penicillium citrinum, revolutionizing cardiovascular disease treatment by lowering cholesterol.

Avermectin

Discovered by Satoshi Omura from soil microbes, leading to the anti-parasitic drug ivermectin to combat river blindness and elephantiasis.

Antibody Diversity Mechanism

Discovered by Susumu Tonegawa in 1976, revealing somatic genetic recombination creates vast antibody diversity in immune systems.

Suzuki-Miyaura Reaction

A palladium-catalyzed cross-coupling reaction between arylboronic acids and halides, vital for organic synthesis and pharmaceuticals.

Heck-Negishi-Suzuki Cross-Coupling

Carbon-carbon bond formation methods recognized with the 2010 Nobel Prize, pioneered by Ei-ichi Negishi and Akira Suzuki.

Noyori Asymmetric Hydrogenation

Developed by Ryoji Noyori using chiral BINAP catalysts to produce enantiomerically pure molecules efficiently.

Conductive Polymers

Discovered by Hideki Shirakawa with Heeger and MacDiarmid in 1977, showing chemically doped polyacetylene conducts electricity.

Adrenaline (Epinephrine) Isolation

First isolated and purified into crystalline hormone form by chemist Jokichi Takamine in 1901.

Taka-Diastase

A starch-degrading fungal enzyme patented by Jokichi Takamine in 1894, becoming the foundation of industrial microbial biotechnology.

Discovery of Vitamins (Oryzanin)

Isolated by Umetaro Suzuki in 1910 from rice bran to cure beriberi, representing the first identified vitamin (thiamine/B1).

Discovery of Monosodium Glutamate (Umami)

Identified by Kikunae Ikeda in 1908 from kelp broth, formally defining umami as the fifth basic taste.

Tetanus Toxin Neutralization

Developed by Kitasato Shibasaburo with Emil von Behring in 1890, creating tetanus antiserum and foundational serum therapy.

Bubonic Plague Bacillus Isolation

Isolated by Kitasato Shibasaburo in Hong Kong in 1894, independently of Alexandre Yersin, identifying the cause of plague.

Syphilis Spirochete Detection

Achieved by Hideyo Noguchi in 1911, demonstrating the presence of Treponema pallidum in the brains of paretic patients.

Ephedrine Extraction

First isolated from Ephedra sinica by Nagai Nagayoshi in 1885, serving as a key precursor for modern respiratory treatments.

Wasan (Traditional Japanese Mathematics)

An independent indigenous mathematical tradition developed in the Edo period, featuring early forms of determinant algebra and calculus.

Seki Takakazu

Edo-period mathematician who discovered determinants before Leibniz and calculated the expansion of circles using infinite series.

QR Code

Invented in 1994 by Masahiro Hara at Denso Wave to track automotive parts efficiently through high-density 2D optical data.

Quartz Wristwatch (Astron)

Commercialized by Seiko in 1969, replacing mechanical movements with battery-powered quartz crystals for superior accuracy.

Pocket Electronic Calculator

Commercialized by Japanese electronics firms like Sharp, Casio, and Busicom between 1970 and 1972 using custom LSI microchips.

Flash Memory (NAND and NOR)

Invented by Fujio Masuoka at Toshiba in the 1980s, enabling durable non-volatile electronic memory storage.

Cassette Walkman (TPS-L2)

Developed by Sony in 1979, establishing the personal portable audio player industry.

Compact Disc (CD)

Co-developed by Sony and Philips in 1982, transitioning commercial music and data distribution into digital optical media.

VHS (Video Home System)

Developed by JVC engineers in 1976, standardizing home video recording through magnetic tape cassettes.

Inverter Air Conditioner

Pioneered by Toshiba in 1981, dynamically controlling compressor motor speed to optimize energy use and thermal regulation.

Sendai Virus (HVJ)

Discovered in Japan in 1952; widely utilized in molecular biology to mediate cell-cell fusion and gene delivery vectors.

Hayabusa Asteroid Sample Return

JAXA mission that returned surface grains from asteroid 25143 Itokawa in 2010, the first successful sample return from an asteroid.

Hayabusa2 Impactor Experiment

JAXA probe that deployed a kinetic impactor on asteroid Ryugu in 2019, successfully returning pristine subsurface material to Earth.

SLIM (Smart Lander for Investigating Moon)

JAXA's 2024 lunar mission that demonstrated pin-point landing technology, touching down within 55 meters of its target.

Kagome Lattice Superconductivity

Heavily investigated by Japanese condensed matter physicists, exploring geometric frustration and topological electronic phases.

Iron-Based High-Temperature Superconductors

Discovered by Hideo Hosono's team in 2008 (LaOFeAs), opening a major non-cuprate family of high-Tc superconductors.

Optical Lattice Clock

Pioneered by Hidetoshi Katori at the University of Tokyo, using trapped neutral strontium atoms to reach 18-digit time accuracy.

Giant Magnetoresistance Applications

Advanced by TDK and Japanese hard drive manufacturers to create high-density magnetic read heads for massive computer storage.

Gallium Nitride (GaN) Crystal Growth

Perfected by Isamu Akasaki and Hiroshi Amano via low-temperature buffer layers, allowing defect-free semiconductor crystals for LEDs.

Endoscopy Innovations

Advanced by Olympus in the 1950s with gastrocamera technology and later flexible fiber optics, transforming non-invasive diagnostics.

K Computer and Fugaku

World-leading supercomputers developed by RIKEN and Fujitsu, pioneering energy-efficient, ARM-based high-performance computing.

ASIMO and Humanoid Robotics

Developed by Honda in 2000, pioneering dynamic zero-moment point bipedal walking and human-assistive robotic autonomy.

Shuji Nakamura's Nichia InGaN Laser

Commercialized blue-violet semiconductor lasers in the late 1990s, forming the core technology behind Blu-ray media players.

Synthetic Diamond Synthesis (HPHT)

Refined at Japan's National Institute for Materials Science (NIMS), producing ultra-pure single crystals for quantum sensing.

Kyoto Protocol Mechanisms

Adopted in Kyoto in 1997, pioneering international legally binding commitments to reduce greenhouse gas emissions based on climate science.

Perovskite Solar Cells

First demonstrated by Tsutomu Miyasaka in 2009, launching worldwide photovoltaic research on cheap, high-efficiency solar absorbers.