Claim · 1981-09 · event · Stated in source · Supported

SoftBank Group’s biography of Masayoshi Son says that he founded Nihon SoftBank, now SoftBank Group Corp., in September 1981.

One recorded claim. The claim panel gives its qualification, the source passages with their place in each source, and how it was checked.

What it connects

Masayoshi Son → co-founded → SoftBank Group

Where it appears

No collection page holds this claim. It is listed with its records in the explorer.

Claim and evidence

Masayoshi Sonco-founded ↓SoftBank Group

Machine-checked, not reviewed by an editorStated in sourceSupported

Supporting evidence: primary · 1 source

Date: 1981-09 · event Records dated 1981 →
Role: Founder (as worded)

Scope and limitsThe company's own biography; Nihon SoftBank and SoftBank Group Corp. are named as one company under its later name, as the page states. No founding roster is asserted.

The evidence 01

primary sourceSupports the claim

Biography: Masayoshi Son

SoftBank Group Corp. · 2026-06-24

Cite the original source

Cite the original document, not Selekoa. Check these details against it.

Source excerpt

“Masayoshi Son founded Nihon SoftBank (currently SoftBank Group Corp.) in 1981 and has continued to serve as its chairman & CEO. Sep. 1981 Founded Nihon SoftBank (currently SoftBank Group Corp.), Chairman & CEO”

Location in source Biography, opening sentence and career table

How it was read Retrieved directly from the publisher

Machine-checked · 2026-10-30

Source details and check notes

Authors: SoftBank Group Corp.
Version: Retrieved for the candidate pack on 2026-10-29 (SHA-256 958564151b9c0f7bf8f8b04dc8335f6b2aad49b17637ad0ecd0a2472453bda0c). Biography page headed “As of June 24, 2026”, as served on 2026-10-29. Its wording can change; earlier wording is not authenticated.
Canonical address: Open the canonical source ↗
Accessed: 2026-10-29
Language: English (en)
Attribution: SoftBank Group Corp., “Biography: Masayoshi Son”, 2026-06-24.
Reuse: No open redistribution licence asserted. Bibliographic metadata, editorial paraphrases and short attributed quotations (at most 50 words each). Recheck terms before wider redistribution.
Check notes: The quotation (31 words) matched the text retrieved for the candidate pack on 2026-10-29. Matching ignored differences of whitespace, case, quotation marks, dashes, PDF line-break hyphens and Unicode compatibility forms, so the source’s typography can differ. A cross-family machine check (2026-10-30, item 17) answered the record’s question blind from fresh retrievals and agreed with the record. No human editorial review.

Status and meaning

Editorial status. Not reviewed by an editor. An exploratory record that no editor has accepted. This status does not say whether a person has read any linked passage. Each evidence record above shows how it was checked.

Relation. Participation in founding an organisation or research team. Neither sole founding nor legal incorporation is implied.

Date. Month from the career table (“Sep. 1981 Founded Nihon SoftBank”); the prose gives the year.

Record ID pp-ex-son-softbank-founded-1981