Japan's Top Inventions - Season 3 Episode 7 Worksheet Study Method
Season - Episode
9
Season 9 Jan 28, 2026
-
9 - 1Non-Loosening Bolts Jan 28, 2026 -
9 - 2Portable Fetal Monitors Feb 11, 2026 -
9 - 3Concentrated Laundry Detergent Mar 04, 2026 -
9 - 4Liquid Glass Coating Mar 25, 2026 -
9 - 5Luminescent Ceramic Tiles Apr 08, 2026 -
9 - 6Automatic Floodgates Apr 29, 2026 -
9 - 7Concrete Testing Equipment May 20, 2026 -
9 - 8Taste Sensing Systems Jun 10, 2026 -
9 - 9Silica Gel Rotors Jul 01, 2026 -
9 - 10Pre-Inked Stamps Jul 29, 2026 -
9 - 11Center Bridge Knee Braces Aug 26, 2026 -
9 - 12Dissolving Microneedles Sep 02, 2026
8
Season 8 Jan 11, 2025
-
8 - 1Rhythm Machines / Food Packaging Jan 11, 2025 -
8 - 2Ultra-thin Silk Fabrics / Membrane Structures Feb 15, 2025 -
8 - 3Press-in Piling Machines / Virus Removal Filters Mar 08, 2025 -
8 - 4 -
8 - 5Massage Chairs Mar 29, 2025 -
8 - 6Capsule Figures Apr 09, 2025 -
8 - 7Lotion Tissues Apr 30, 2025 -
8 - 8Heat-resistant Labels May 21, 2025 -
8 - 9Frozen Food Vending Machines Jun 11, 2025 -
8 - 10Smokeless Grills Jul 02, 2025 -
8 - 11Super-absorbent Towels Jul 23, 2025 -
8 - 12Motorized Conveyor Rollers Aug 06, 2025 -
8 - 13Laser Flaw Inspection Systems Aug 27, 2025 -
8 - 14Curved Escalators Sep 17, 2025 -
8 - 15Capsule Beds Oct 01, 2025 -
8 - 16Eggshell Field Chalk Oct 22, 2025 -
8 - 17Cosmetic Sponges Nov 12, 2025 -
8 - 18Water Jet Cutters Dec 03, 2025 -
8 - 19Automated Ginjo Koji Makers Dec 24, 2025
7
Season 7 Jan 20, 2024
-
7 - 1Direct Drive Turntables / Natto Jan 20, 2024 -
7 - 2Letter Sorting Machines / Exhaust Gas Analyzers Jan 28, 2024 -
7 - 3Cultured Pearls / Casting Systems Feb 24, 2024 -
7 - 4Contactless IC Cards / Wasabi Packets Mar 30, 2024 -
7 - 5Singing Synthesizers / Solder Apr 27, 2024 -
7 - 6Fan-Cooled Workwear / Marine Cargo Tanks May 25, 2024 -
7 - 7Diagnostic Ultrasound Machines / Sports Balls Jun 29, 2024 -
7 - 8Artificial Leather / Blood Test Needles Jul 27, 2024 -
7 - 9Tactile Paving / Crab Stick Machines Aug 31, 2024 -
7 - 10Multihead Weighers / Aircraft Interior Products Sep 28, 2024 -
7 - 11Jet-Air Hand Dryers / Artificial Teeth Oct 26, 2024 -
7 - 12Seismic Oil Dampers / Fabric Trim Nov 30, 2024
6
Season 6 Jan 28, 2023
-
6 - 1Automatic Ticket Gates / Tool Setters Jan 28, 2023 -
6 - 2Automatic Door Sensors / Banknote Printing Machines Feb 25, 2023 -
6 - 3Online Karaoke Services / Umbrella Bagging Machines Mar 25, 2023 -
6 - 4Imitation Crab / Monorail Transporters Apr 29, 2023 -
6 - 5Piano with Silent System / Plastic Food Models May 27, 2023 -
6 - 6Cockroach Traps / Residential Maps Jul 08, 2023 -
6 - 7Ultra-High-Speed Elevators / Carton Filling Machines Jul 29, 2023 -
6 - 8 -
6 - 9Lint Rollers / Rotating Beacon Lights Sep 30, 2023 -
6 - 10 -
6 - 11Home Water Purifiers / Plastic Valves Nov 25, 2023
5
Season 5 Jan 08, 2022
-
5 - 1Home Blood Pressure Monitors / Test Patterns Jan 08, 2022 -
5 - 2Drawing Tablets / Cascades (Airplane Component) Jan 29, 2022 -
5 - 3Laptop Computers / Purification & Separation Systems Feb 19, 2022 -
5 - 4 -
5 - 5 -
5 - 6 -
5 - 7Landmine Clearance Machines / Linear Guides May 28, 2022 -
5 - 8Canned Bread / Automatic Dorayaki Machines Jun 25, 2022 -
5 - 9Mosquito Coils / Screw Removal Tools Jul 30, 2022 -
5 - 10Pulse Oximeters / Egg Grading & Packing Systems Sep 03, 2022 -
5 - 11Low Pain Needles / Sports Wheelchairs Sep 24, 2022 -
5 - 12Fish Finders / Medical Simulators Oct 29, 2022 -
5 - 13 -
5 - 14Correction Tape / Water Filter Media Dec 24, 2022
4
Season 4 Jan 14, 2021
-
4 - 1Planetariums Jan 14, 2021 -
4 - 2Handheld Digital Pets Jan 28, 2021 -
4 - 3Home Gaming Console / Smartphone Springs May 15, 2021 -
4 - 4Neurosurgical Instruments / Weather Meters Jul 16, 2021 -
4 - 5Body Fat Scales / Luggage Rack Mirrors Jul 31, 2021 -
4 - 6Sushi Robots / Refractometers Oct 30, 2021 -
4 - 7Camera Phones / Electron Microscopes Nov 26, 2021 -
4 - 8Radio Controlled Watches / Encrusting Machines Dec 11, 2021
3
Season 3 Jan 09, 2020
-
3 - 1Home Bread Makers Jan 09, 2020 -
3 - 2Glow in the Dark Pigments Jan 30, 2020 -
3 - 3Emoji Feb 13, 2020 -
3 - 4Miniature Video Cameras Mar 12, 2020 -
3 - 52D Barcodes Mar 26, 2020 -
3 - 6Water Purifying Powder Apr 16, 2020 -
3 - 7Worksheet Study Method May 28, 2020 -
3 - 8Film Farming Jun 25, 2020 -
3 - 9Surgical Microscope Stand Jul 23, 2020 -
3 - 10Automatic Thread Trimmer Sewing Machines Aug 13, 2020 -
3 - 11Robotic Exoskeletons Aug 20, 2020 -
3 - 12Dinosaur Robots Aug 27, 2020 -
3 - 13Palm Vein Authentication Sep 24, 2020 -
3 - 14Fresh Freezing System Oct 22, 2020 -
3 - 15Bottled Green Tea Nov 25, 2020 -
3 - 16Personal Information Protection Stamps Dec 24, 2020
2
Season 2 Jan 17, 2019
-
2 - 1Snap-Off Utility Knives Jan 17, 2019 -
2 - 2Acrylic Aquarium Panels Feb 21, 2019 -
2 - 3Makeup Brushes Mar 21, 2019 -
2 - 4Compact Motorcycles Apr 17, 2019 -
2 - 5Stay-Tight Fasteners May 09, 2019 -
2 - 6Video Game Character May 30, 2019 -
2 - 7Pedal Assist Electric Bicycles Jun 19, 2019 -
2 - 8Cooling Gel Sheets Jul 10, 2019 -
2 - 9Fiber Tip Pens Aug 07, 2019 -
2 - 10Shock Resistant Wristwatches Aug 21, 2019 -
2 - 11Cup Ramen Sep 11, 2019 -
2 - 12Probiotic Drinks Oct 09, 2019 -
2 - 13Special Effects Monster Movie Oct 23, 2019 -
2 - 14Umami Seasoning Nov 13, 2019 -
2 - 15Blue LEDs Nov 27, 2019 -
2 - 16Spinning Top Toys Dec 19, 2019
1
Season 1 Mar 18, 2018
-
1 - 1Conveyor Belt Sushi Mar 18, 2018 -
1 - 2Shinkansen Apr 19, 2018 -
1 - 3Automatic Rice Cookers May 17, 2018 -
1 - 4Electronic Bidet Toilets Jun 21, 2018 -
1 - 5Quartz Wristwatches Jul 19, 2018 -
1 - 6Instant Ramen Aug 16, 2018 -
1 - 7Portable Music Players Sep 20, 2018 -
1 - 8Gastrocameras Oct 18, 2018 -
1 - 9Handheld Calculators Nov 22, 2018 -
1 - 10Erasable Pens Dec 20, 2018
Overview
The behind-the-scenes tales of hit products and creations from Japan: this is Japan's Top Inventions. This time, the worksheet study method known as "Kumon." Invented in 1958 by math teacher Kumon Toru for his son, the method involves self-study with math problems printed on worksheets. Using the sheets, learners improve their academic ability in small steps. Today the method is used by over 4 million students in 57 countries and regions. Dive into the little-known story behind this method.
Year 2026
Studio NHK WORLD-JAPAN
Director
Crew
Popularity 4.0661
Language English
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