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| Hideo Nakayama, the founder of Sun Chlorella Group was born in 1915 in Rebun island where is located in the northernmost part of Japan. |
| After World War II, although his business in Kyoto was successful, he was attacked by various diseases because of overwork in a long-term military life. When he was settling his business in order to concentrate on the medical treatment, there was fateful encounter with chlorella. Due to his tremendous amount of effort, he miraculously recovered thanks to chlorella. Then, he made a decision to devote the rest of his life for the research and the spread of chlorella as he believed that letting everyone realize the joy of recovery from diseases and the wonderfulness of chlorella to many people is a divine decree for him. |
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In 1969, at the age of 54, he established a chlorella sales agency "Heian Chlorella Jeffcy Co., Ltd." in Kyoto with his wife. Initially, he began to sell the products at the store, however, he felt the need of "Increasing the consumer recognition of chlorella", "Providing credibility and comfort of our products to many customers" and "Conveying correct product information to customer directly". So he changed the selling method to introducing the direct-selling method by mail-order system. |
| He worked on research of chlorella and never became bloated with his pride by chlorella being appreciated. Although chlorella became popular, he continued the research for making the chlorella with the best quality always. In that regard, it is also shown clearly that our proprietary pulverization method of chlorella cell wall was recognized as a patent both in Japan and the U.S. |
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On the other hand, as he thought that there was no border for wishing health, he had also started to spread chlorella overseas. The recent annual sales of Sun Chlorella Group is about JP(Yen)20 billion. Even today Sun Chlorella Corporation grew up to be a leading company in Kyoto, we have been inheriting Nakayama's foundation spirit and his ethics with each company of the Sun Chlorella Group. |
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| 1969 | December | Established Heian Chlorella Jeffcy Co., Ltd. | |
| 1971 | July | Changed company name to Sun Chlorella Co., Ltd., and began production of our own brand Sun Chlorella | |
| 1974 | March | Completion ceremony for corporate headquarters | |
| 1975 | July | Established Chlorella Trading Co., Ltd. fully financed by Chlorella Sun Co., Ltd. | |
| 1976 | June | Achieved pulverization of chlorella cell wall | |
| August | Extracted successfully Chlorella Growth Factor (C.G.F.) | ||
| November | Started selling our patented product Sun Chlorella "A" | ||
| 1979 | July | Began selling our product Chlorella Wakasa Gold | |
| 1980 | February | Chlorella Sun Co., Ltd. changed company name to Sun Chlorella Co., Ltd. | |
| 1981 | December | Granted Japan patent No. 1076130, "Method of Disrupting the Chlorella Cell Wall by Cell Rupture" | |
| 1982 | November | Established Sun Chlorella California Inc. (Torrance, U.S.A.) | |
| December | Sun Chlorella California Inc. changed to YSK American Corporation | ||
| 1984 | July | Started research on Eleuthero in Ashoro. (Hokkaido, Japan) | |
| 1986 | January | Sun Chlorella Co., Ltd. changed to YSK International Corporation | |
| 1987 | January | Began first clinical research with Virginia Commonwealth University | |
| 1989 | September | Established Yume Co., Ltd. | |
| November | Established Sun Chlorella Co., Ltd. as a domestic sales company | ||
| 1993 | June | YSK American Corporation changed to Sun Wellness, Inc. | |
| July | Founded PT. Sun Chlorella Indonesia Manufacturing | ||
| 1994 | July | Granted U.S. patent No. 5330913, "Method of Disrupting the Chlorella Cell Wall by Cell Rupture" | |
| October | Completion of the PT. Sun Chlorella Indonesia Manufacturing | ||
| 1999 | June | Sun Chlorella Co., Ltd. changed to Sun Chlorella Sales Corporation | |
| December | YSK International Corporation changed company name to Sun Chlorella Corporation | ||
| 2000 | January | Founder Hideo Nakayama passed away | |
| April | Sun Wellness Inc. changed to Sun Chlorella USA Corporation | ||
| August | Started annual special support for Sun Chlorella Classic golf tournament (Sapporo, Japan) | ||
| October | Established Sun Chlorella Europe (Munich, Germany) |
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| 2001 | January | Granted Japan patent No. 3143636, "Method of Disrupting the Chlorella Cell Wall by Cell Rupture" | |
| April | Established Sun Chlorella Corporation Shanghai Representative Office (Shanghai, China) | ||
| May | Completion of new corporate headquarters (Kyoto, Japan) Began selling our product Sun Chlorella Agaricus |
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| December | Established Sun Chlorella USA Corporation New York Branch office (New York, U.S.A.) |
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| 2003 | April | Established Sun Chlorella Brasil Importação e Exportação Ltda. (São Paulo, Brazil) |
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| September | Granted U.S. patent "Method of a Mixture of the Agaricus Blazei Murrill" | ||
| October | Established Sun Chlorella Corporation Düsseldorf Branch (Düsseldorf, Germany) |
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| December | Granted Japan patent "Method of a Mixture of the Agaricus Blazei Murrill" | ||
| 2004 | March | Completion of new headquarters of Sun Chlorella USA Corporation (Los Angels, U.S.A.) |
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| 2005 | June | Established Sun Chlorella Corporation London Branch (London, U.K.) |
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| 2006 | March | Established Sun Chlorella Shanghai Co., Ltd. (Shanghai, China) |
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| 2007 | January | Established Sun Chlorella Beijing Co., Ltd. (Beijing, China) |
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| November | Sun Chlorella USA Corporation New York Branch office was integrated into L.A. head office | ||






