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Platinum Pen Company

Japanese pen manufacturer

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionMay 31, 2026
Entity authorityQ11335482 ↗
Source-derived summary

Platinum Pen Co., Ltd. (プラチナ万年筆株式会社, Purachina Mannenhitsu Kabushiki-gaisha) is a Japanese pen manufacturer based in Taitō, Tokyo known for the introduction in 1956 of the world's first cartridge type fountain pen, and in 1967 for the first fountain pen with a platinum nib.

History

It was founded by Shunichi Nakata in 1919. In 1924 the business was known as Nakaya Seisakusho and was based in Ueno, Tokyo.

In 1942 the company was primarily focused for the Tokyo Weapons Company involved in the manufacture of fighter planes. The pen business Nakaya Seisakusho was renamed Platinum Fountain Pen Company Ltd. This changed in 1952 to Platinum Industry Company after a challenge from a British company of the same name, but reverted in 1962.

Later the business moved to Taitō, Tokyo, where it remains. Production is in Shanghai, China.

Products

Fountain pens

Platinum's flagship model is the 3776, which launched in 1978.

Editorial summary

Begin with the source’s own compact description: “Platinum Pen Company” is japanese pen manufacturer. The dossier treats that line as a proposition to test through Platinum, Company and Japanese, not as a finished interpretation.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—1956, 1967, 1919, 1924—that can be checked directly. The authority record carries competing date values—1942, 1919—which should remain separate until their references and qualifiers are resolved. For this dossier, Platinum, Company and Japanese is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “japanese pen manufacturer” 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.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated May 31, 2026. The linked authority identifier is Q11335482. 3 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1956, 1967, 1919 and 1924.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. 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.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Platinum Pen Company”, its source revision and the description used here.
  2. Expand the search: follow Platinum Pen Company primary sources, Platinum Pen Company archive and Platinum research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Platinum Pen Company”?
  2. Which cited source is closest to the event, object or claim?
  3. What terminology or title could unlock a more precise catalogue search?
Subject index

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Source & attribution

This entry incorporates text from “Platinum Pen Company” 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.