Koji Yamami - For embedding
| 1984 | Discovering glass kaleidoscopes while studying abroad in the United States |
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| 1987 | After returning to Japan, he began making kaleidoscopes on his own. |
| 1996 | Joined the American Kaleidoscope Society |
| 2001 | Kaleidoscope World Championship Best Work Award NHK "Oshare Kobo" TV Course |
| 2003 | Kaleidoscope World Championship Best Work Award |
| 2004 | Produced the title sequence for the TV drama "Peony and Roses" Developed an Arita porcelain kaleidoscope |
| 2007 | School opens in Daikanyama |
| 2008 | NHK "Oshare Kobo" and NHK "Hobbies and Leisure" TV courses |
| 2010 | Asia's first kaleidoscope exhibition in Hong Kong |
| 2013 | Kaleidoscope World Championship Best Work Award |
| 2014 | Kaleidoscope exhibited in Paris and presented to the King of Brunei |
| 2015 | Seibundo Shinkosha "My First Handmade Kaleidoscope" published. Title back production for the TV drama "New Peony and Rose" |
| 2016 | Gakken releases "Healing Kaleidoscope DVD Book" Receives the Grand Prize at the Kaleidoscope World Championships Seibundo Shinkosha publishes "Kaleidoscope Encyclopedia" |
| 2017 | Kaleidoscope World Championship held in Japan |
| 2018 | Kaleidoscope World Championship Best Work Award |
