Toshikazu Kawasaki
Toshikazu Kawasaki (川崎敏和, Kawasaki Toshikazu, born November 26, 1955 in Kurume, Fukuoka) is a Japanese paperfolder and origami theorist who is known for his geometrically innovative models. He is particularly famous for his series of fourfold symmetry "roses", all based on a twisting maneuver that allows the petals to seem to curl out from the center of the flower. Kawasaki also teaches mathematics at Sasebo Technical Junior College.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/6/66/Kawasaki_new_rose.jpg/220px-Kawasaki_new_rose.jpg)
Kawasaki was the first to develop the technique of iso-area folding, which allows the folder to end up with each side of the paper displayed in equal amounts. It consists of building a mirror-symmetrical crease pattern and then collapsing it to find a finished form, usually a geometric shape such as a cube. He also discovered and proved that with any given flat point in an origami model, the sum of alternating angles is always equal to 180 degrees, a result now known as Kawasaki's theorem.
Publications
- Origami^6, American Math Society, (2015)
- The Greatest Dream Origami, Asahi Press, (2009)
Resources
Kunihiko Kasahara and Toshie Takahama, Origami for the Connoisseur. Japan Publications.
External links
- Instructions for folding Toshikazu Kawasaki's Rose
- v
- t
- e
- Big-little-big lemma
- Crease pattern
- Huzita–Hatori axioms
- Kawasaki's theorem
- Maekawa's theorem
- Map folding
- Napkin folding problem
- Pureland origami
- Yoshizawa–Randlett system
- Dragon curve
- Flexagon
- Möbius strip
- Regular paperfolding sequence
- Roger C. Alperin
- Margherita Piazzola Beloch
- Yan Chen
- Robert Connelly
- Erik Demaine
- Martin Demaine
- Rona Gurkewitz
- David A. Huffman
- Tom Hull
- Kôdi Husimi
- Humiaki Huzita
- Toshikazu Kawasaki
- Robert J. Lang
- Anna Lubiw
- Jun Maekawa
- Kōryō Miura
- Joseph O'Rourke
- Tomohiro Tachi
- Eve Torrence