Japan's Top Inventions
S2 · E15 — Blue LEDs
S2:E15 · Blue LEDs
16 episodes in this season
Snap-Off Utility Knives
15 min
Acrylic Aquarium Panels
Makeup Brushes
Compact Motorcycles
Stay-Tight Fasteners
Video Game Character
Pedal Assist Electric Bicycles
Cooling Gel Sheets
Fiber Tip Pens
Shock Resistant Wristwatches
Cup Ramen
Probiotic Drinks
Special Effects Monster Movie
Umami Seasoning
Blue LEDs
Spinning Top Toys
