Kōichi Itagaki

Japanese entrepreneur and astronomer
Person human Q3816181
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Kōichi Itagaki

Summary

Kōichi Itagaki is a human[1]. He was born on November 12, 1947[2]. He worked as an entrepreneur[3] and astronomer[4]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (33 views/month, #7,294 of 1,000,298).[5]

Key Facts

  • Kōichi Itagaki was born on November 12, 1947[2].
  • Kōichi Itagaki was born on 1947[6].
  • Kōichi Itagaki held citizenship in Japan[7].
  • Japanese was Kōichi Itagaki's native language[8].
  • Kōichi Itagaki worked as an entrepreneur[3].
  • Kōichi Itagaki worked as an astronomer[4].
  • Kōichi Itagaki is recorded as male[9].
  • Kōichi Itagaki's instance of is recorded as human[10].
  • Kōichi Itagaki's family name is recorded as Itagaki[11].
  • Kōichi Itagaki's given name is recorded as Kōichi[12].
  • Kōichi Itagaki's languages spoken, written or signed is recorded as English[13].
  • Kōichi Itagaki's name in native language is recorded as {'lang': 'ja', 'text': '板垣 公一'}[14].
  • Kōichi Itagaki's name in kana is recorded as いたがき こういち[15].

Body

Origins and Family

Recorded date of birth include November 12, 1947[2] and 1947[6]. Japanese was Kōichi Itagaki's native language[8].

Career and Affiliations

Recorded occupations include entrepreneur[3] and astronomer[4].

Works and Contributions

Things named for Kōichi Itagaki include 14551 Itagaki[16], an asteroid[17].

Why It Matters

Kōichi Itagaki ranks in the top 0.73% of human entities by monthly Wikipedia readership (33 views/month, #7,294 of 1,000,298).[5] He has Wikipedia articles in 7 language editions, a strong signal of global cultural recognition.[18] He is known by 13 alternative names across languages and contexts.[19]

He is credited with the discovery of SN 2023ixf[20], a Type II supernova[21]; 189261 Hiroo[22], an asteroid[23]; 134069 Miyo[24], an asteroid[25]; and 117350 Saburo[26], an asteroid[27]. Entities named for him include 14551 Itagaki[16], an asteroid[17].

FAQs

What did Kōichi Itagaki do for work?

Kōichi Itagaki worked as entrepreneur[3] and astronomer[4].

What did Kōichi Itagaki discover?

Kōichi Itagaki is credited as discoverer of SN 2023ixf[20], 189261 Hiroo[22], 134069 Miyo[24], and 117350 Saburo[26].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [9] . wikidata.org.
  2. [7] . wikidata.org.
  3. [10] . wikidata.org.
  4. [8] . wikidata.org.
  5. [3] . wikidata.org.
  6. [4] . wikidata.org.
  7. [2] . wikidata.org.
  8. [6] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . CONOR.SI. wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [20] . wikidata.org. → on this site
  2. [22] . wikidata.org. → on this site
  3. [24] . wikidata.org. → on this site
  4. [26] . wikidata.org. → on this site
  5. [16] . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [21] . Wikidata. wikidata.org. → on this site
  2. [23] . Wikidata. wikidata.org. → on this site
  3. [25] . Wikidata. wikidata.org. → on this site
  4. [27] . Wikidata. wikidata.org. → on this site
  5. [17] . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [5] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [18] . Wikidata sitelinks. wikidata.org.
  3. [19] . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Kōichi Itagaki. Retrieved April 10, 2026, from https://4ort.xyz/entity/k-ichi-itagaki
MLA “Kōichi Itagaki.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/k-ichi-itagaki.
BibTeX @misc{4ortxyz_k-ichi-itagaki_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Kōichi Itagaki}}, year = {2026}, url = {https://4ort.xyz/entity/k-ichi-itagaki}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Kōichi Itagaki — https://4ort.xyz/entity/k-ichi-itagaki (retrieved 2026-04-10)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 18d ago · PromePw · 2026-07-04 view diff on Wikidata ↗
    Country of citizenship Japan
    Languages spoken, written or signed English
    Instance of human
    Native language Japanese
    + 8 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update:2||1 */ [[Property:P735]]: [[Q136767495]]"
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