Toshiwo Doko
Japanese engineer and businessman (1896-1988)

Toshiwo Doko (土光 敏夫 Dokō Toshio; September 15, 1896 – August 4, 1988) was a Japanese engineer born in Mitsu District, Okayama, Manager, President and Chairman of Ishikawajima Heavy Industry (IHI) and Toshiba.
Background
Dokō was a key manager in the Japanese economic miracle after World War II, in particular, from 1974 to 1980 when he helmed the Toshiba Corporation and was appointed chairman of the Japan Business Federation (Keidanren).
After graduating from Tokyo Institute of Technology (or Tokyo Kogyo Daigaku) in 1920, Dokō worked at the Ishikawajima Shipyard Co., first as a designer of turbines and then became a president from 1950 to 1960, during which he renewed the company to benefit from significant procurement provided by the United States during the Korean War.
Dokō later chaired the Ishikawajima-Harima Heavy Industries Co. Ltd. during the merger in 1960, overseeing the construction of the Idemitsu Maru, the largest tanker in the world. At Toshiba, he functioned as a vice president between 1965 and 1972, and became the president between 1972 and 1976. He raised the morale of the workers driving the company towards prosperity.
During 1970's, he had a relationship with a company such as Standard Oil.
Dokō maintained 40-years of perfect attendance at work when at IHI in which he was never late or absent.
Begin with the source’s own compact description: “Toshiwo Doko” is japanese engineer and businessman (1896-1988). The dossier treats that line as a proposition to test through Toshiwo, Doko and Japanese, not as a finished interpretation.
Why this record matters
The phrase “japanese engineer and businessman (1896-1988)” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
The entry’s evidential value lies in the named roles, institutions and publications that can be tested against primary documentation. The source revision retrieved here is dated Aug 31, 2026. The linked authority identifier is Q3712574. VIAF identifies the subject as 109223460. The Library of Congress control number is n83064728. 2 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1896, 1988, 1974 and 1980.
Public reputation and documentary evidence do not always develop together; absence from a summary is not evidence of historical absence. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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Three-step research path
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- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
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This entry incorporates text from “Toshiwo Doko” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.