[These pages were authored by the late Thoki Yenn, and were restored here from the Internet Archive by Erik Demaine, with contributions of missing files from various readers (notably Tommy Stevens, Roberto Morassi, and Boaz Shuval). If you spot any other bugs like missing images or pages, please report them.]

Orikata page 5

 13 Thoki Yenn Orikata - page 5
 ``` WHY ORIKATA ? Knowing only too well. that to claim to be the inventor/creator/discoverer of a special design can rightfully be challenged by anyone, who has discovered/created/invented the same design, I have chosen to call my editions of these shapes in this booklet by the Japanese term ORIKATA, which according to the A.B.C. of ORIGAMI by Eric Kenneway is: ORIKATA: I) An archaic Japanese term (lit. 'fold shape) which has the same meaning as 'origami'. (folded paper) 2) A modern Japanese term, written differently from 1), meaning 'how to fold' or 'folding method'. (B.O.S. magazine No. 96. October 1982, page 30.) I use the term in the sense of 'my way of folding these shapes'. I have 'lifted' certain of the ideas in this booklet. The method of trisection is the Fujimoto method. The DISPLACED HALF CUBES and their ring is lifted from MODELLI DI GEOMETRIA ROTATORIA by GIORGIO SCARPA. This very Interesting book was given to me by Roberto Morassi. The Origami version is my own. In SCIENTIFIC AMIERICAN from some years ago I found in an article by Martin Gardner, that the Chinese had lifted one of my ideas many hundreds of years before I was born; namely splitting the cube into 3 SKEW PYRAMIDS and calling them Yangmas, the same article also shows that six Pyramids will fold respectively into a cube and a rhombic dodecahedron when taped into a cross of pyramids. I have not invented the square or the cube or the tetrahedron, neither have I invented or created the rectangle nor the wrong tangle. It was all there before I came along. - 5 -```
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 updated 13. JUNE 2000