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Photograph of Jokichi Takamine in Makino Terutomo, Gendai hatsumeika den (Teikoku Hatsumei Kyokai, 1911), National Diet Library of Japan Digital Collections, item 777757, Public Domain Mark · Halftone photograph of Takamine as the frontispiece of the book 'Gendai hatsumeika den' (Lives of Contemporary Inventors) by Makino Terutomo, published by Teikoku Hatsumei Kyokai, Tokyo, September 1911, captioned 'world-famous inventor Takamine Jokichi', National Diet Library of Japan, Digital Collections item 777757, page 11, with the library's Public Domain Mark. The photographer is not named in the book. The page image (3607 x 2777 pixels) was cropped to the photograph and downscaled to 830 x 1200 with no upscaling. The picture is a coarse printed halftone, so quality is low. · Public domain (published in Japan in 1911; National Diet Library Public Domain Mark)

chemist · 19th Century

Jōkichi Takamine

1854–1922

Known For

scientificmedicalentrepreneurial

Not yet included in personality matching — the documented evidence doesn't yet cover enough of the personality model. Everything else on this page is fully available.


Trait Constellation


Key Achievements

With his assistant Keizo Uenaka he crystallised the hormone adrenaline in New York around 1900 and patented it as Adrenalin; it became a widely used medicine.

He developed Taka-diastase, a starch-digesting enzyme made from koji mould, and licensed it to Parke, Davis & Co., which sold it as a digestive medicine from 1895.

He founded the Tokyo Artificial Fertilizer Company and, in 1913 with Matasaku Shiobara, Sankyo Co., of which he was first president, and he proposed the research institute that became RIKEN.


Moments That Reveal Them

After the whiskey factory he was working with burned in 1891 and its operators ended his contract, he changed track, developed the enzyme as a digestive medicine and licensed it to Parke, Davis & Co., whose income then funded his own laboratory.

This is consistent with an inventor who found a new commercial route after a setback. Resourcefulness

After about three years without success on the adrenal gland hormone, he wrote to his former professor Nagayoshi Nagai, who recommended Keizo Uenaka; Uenaka came from Japan in 1900, and within six months the hormone was purified.

This is consistent with a lead who recruited help through his professional network when a problem stalled. Collaboration


Turning Points

In 1890 he moved his family to the United States to develop a commercial use for his enzyme in the distilling industry, a move that began his career as an inventor-entrepreneur abroad and led to the Parke, Davis partnership.

This is consistent with a willingness to leave a government career for an uncertain commercial venture. Risk Tolerance


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Opposite Profile

Not a rival — a different profile shape worth a look.


Sources