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KDDI: History & Companies

KDDI Corporation (Japanese: KDDI株式会社, Hepburn: Keidīdīai kabushiki gaisha) is a Japanese telecommunications operator. It was established in 2000 through the merger of DDI Corporation (第二電電, Daini Denden), a long-distance communications company; KDD Corporation (ケイディディ), Japan's former state-monopoly international telecommunications provider; and Ido…

Language: English [EN]
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KDDI topic overview

The analysis highlights History and Companies as prominent areas in the source structure around KDDI.

Related topics
46
Source areas
2
Connected nodes
48
Extracted relationships
57
Concept neighborhoods
8
Bridge connections
48

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

History · 38 topics
Overview · 8 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Founded
1953; 73 years ago (1953) (establishment of Kokusai Denshin Denwa or KDD as a state-owned enterprise) June 1, 1984; 42 years ago (1984-06-01) (as DDI)
Industry
Telecommunications
Headquarters
Iidabashi, Chiyoda, Tokyo, Japan
Formerly
DDI Corporation (1984–2000)
Founder
Government of Japan (for the KDD branch) Kazuo Inamori (for the DDI branch)
Key people
Takashi Tanaka (businessman) [jp] (CEO) Makoto Takahashi (businessman) [jp] (president & CEO)

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

History

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How KDDI connects Entity context

The extracted context around KDDI shows recurring relationship patterns in the source. For example, KDDI → Aeon Holdings (100%), au Energy Holdings, au Financial Holdings [jp] (100%), BIGLOBE (100%), Chubu Telecommunications [jp] (80.5%), J:COM (50%), Japan Telecommunication Engineering Service, Kakaku.com (17.4%), KDDI America, KDDI Asia Pacific, KDDI Cableships & Subsea Engineering, KDDI China, KDDI Digital Divergence Holdings, KDDI Engineering, KDDI Matomete Office, KDDI Research [jp] (91.7%), Kyocera Communication System (23.4%), Lac (32.4%), Mobaoku (33.4%), Okinawa Cellular Telephone Company (53.9%) Another extracted example is KDDI → CDMA, CDMA2000, EV-DO Rev, Japan's, Mbit/s, On April, On November, WIN. Use these groups to spot repeated connection types before inspecting the individual relationships.

KDDI

Top relations

Subsidiaries · 25
KDDI → Aeon Holdings (100%), au Energy Holdings, au Financial Holdings [jp] (100%), BIGLOBE (100%), Chubu Telecommunications [jp] (80.5%), J:COM (50%), Japan Telecommunication Engineering Service, Kakaku.com (17.4%), KDDI America, KDDI Asia Pacific, KDDI Cableships & Subsea Engineering, KDDI China, KDDI Digital Divergence Holdings, KDDI Engineering, KDDI Matomete Office, KDDI Research [jp] (91.7%), Kyocera Communication System (23.4%), Lac (32.4%), Mobaoku (33.4%), Okinawa Cellular Telephone Company (53.9%)
related to history · 8
KDDI → CDMA, CDMA2000, EV-DO Rev, Japan's, Mbit/s, On April, On November, WIN
see also · 5
KDDI → India Private LimitedList, Japan, MobileG-Book, Tokyo, Toyota
Products · 4
KDDI → digital television, Fixed line, Internet services, mobile telephony
Formerly · 1
KDDI → DDI Corporation (1984–2000)
Founded · 1
KDDI → 1953; 73 years ago (1953) (establishment of Kokusai Denshin Denwa or KDD as a state-owned enterprise) June 1, 1984; 42 years ago (1984-06-01) (as DDI)
Founder · 1
KDDI → Government of Japan (for the KDD branch) Kazuo Inamori (for the DDI branch)
Headquarters · 1
KDDI → Iidabashi, Chiyoda, Tokyo, Japan
Industry · 1
KDDI → Telecommunications
Key people · 1
KDDI → Takashi Tanaka (businessman) [jp] (CEO) Makoto Takahashi (businessman) [jp] (president & CEO)

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

mobile au services telecommunications operator brand japan company network service ddi cellular corporation 3g telecommunication citation needed phone japan's companies

KDDI relationships Subject–Predicate–Object triples

TTTA extracted 57 structured relationships around KDDI. Examples in this analysis include KDDI → Formerly → DDI Corporation (1984–2000) and KDDI → Founded → 1953; 73 years ago (1953) (establishment of Kokusai Denshin Denwa or KDD as a state-owned enterprise) June 1, 1984; 42 years ago (1984-06-01) (as DDI). The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
KDDIFormerlyDDI Corporation (1984–2000)1.00infobox
KDDIFounded1953; 73 years ago (1953) (establishment of Kokusai Denshin Denwa or KDD as a state-owned enterprise) June 1, 1984; 42 years ago (1984-06-01) (as DDI)1.00infobox
KDDIFounderGovernment of Japan (for the KDD branch) Kazuo Inamori (for the DDI branch)1.00infobox
KDDIHeadquartersIidabashi, Chiyoda, Tokyo, Japan1.00infobox
KDDIIndustryTelecommunications1.00infobox
KDDIKey peopleTakashi Tanaka (businessman) [jp] (CEO) Makoto Takahashi (businessman) [jp] (president & CEO)1.00infobox
KDDINative nameKDDI株式会社1.00infobox
KDDINet incomeJP¥ 639.77 billion (2020)1.00infobox
KDDINumber of employees44,952 (2020)1.00infobox
KDDIPredecessorKDD Corporation IDO Corporation1.00infobox
KDDIProductsFixed line1.00infobox
KDDIProductsmobile telephony1.00infobox
KDDIProductsInternet services1.00infobox
KDDIProductsdigital television1.00infobox
KDDIRevenueJP¥ 5.24 trillion (2020)1.00infobox
KDDIRomanized nameKeidīdīai kabushiki gaisha1.00infobox
KDDISubsidiariesOkinawa Cellular Telephone Company (53.9%)1.00infobox
KDDISubsidiariesJ:COM (50%)1.00infobox
KDDISubsidiariesUQ Communications (32.3%)1.00infobox
KDDISubsidiariesBIGLOBE (100%)1.00infobox
KDDISubsidiariesAeon Holdings (100%)1.00infobox
KDDISubsidiariesChubu Telecommunications [jp] (80.5%)1.00infobox
KDDISubsidiariesWire and Wireless [jp] (95.2%)1.00infobox
KDDISubsidiariesTelasa (50%)1.00infobox
KDDISubsidiariesau Financial Holdings [jp] (100%)1.00infobox
KDDISubsidiariesSupership Holdings1.00infobox
KDDISubsidiariesau Energy Holdings1.00infobox
KDDISubsidiariesKDDI Matomete Office1.00infobox
KDDISubsidiariesKDDI Digital Divergence Holdings1.00infobox
KDDISubsidiariesKDDI Engineering1.00infobox

Related concept clusters Concept neighborhoods

The concept neighborhoods around KDDI bring nearby vocabulary together. In this analysis, examples include Mobile, Au and 3g. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • KDDI
    • Mobile
    • Au
    • 3g
    • Cellular
    • Citation
    • Needed
    • Service
    • Japan
    • Operator
    • Companies
    • Telecommunication
    • Tokyo
  • kddi
    • Mobile
    • Au
    • 3g
    • Cellular
    • Citation
    • Needed
    • Service
    • Japan
    • Operator
    • Companies
    • Telecommunication
    • Tokyo
  • au
    • Brand
    • Mobile
    • Citation
    • Needed
    • Service
    • Services
    • Kddi
    • Name
    • Net
    • Uq
    • Companies
    • Telecommunication
  • 3g
    • Tokyo
    • Cellular
    • Citation
    • Company
    • Needed
    • Kddi
    • Au
    • Also
    • Communications
    • Gaisha
    • Ido
    • Kabushiki
  • kddi designing studio
    • Mobile
    • Au
    • 3g
    • Cellular
    • Citation
    • Needed
    • Service
    • Japan
    • Operator
    • Companies
    • Telecommunication
    • Tokyo
  • y!mobile
    • Au
    • Service
    • Japan
    • Telecommunication
    • Brand
    • Phone
    • Telecommunications
    • Number
    • Provider
    • Uq
    • Companies
    • Tokyo
  • myanmar post and telecommunication
    • Service
    • Tokyo
    • Telephony
    • Uq
    • Needed
    • Phone
    • Telecommunications
  • ip telephony over copper
    • Uq
    • Telecommunication
    • Tokyo
    • Needed
    • Service

Connections between topic areas Semantic bridges

For KDDI, one of the stronger structural bridges in this analysis connects KDDI with History. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
KDDI — History · splits 10 ⟂ 39
KDDI — Overview · splits 40 ⟂ 9

Map overview Semantic statistics

KDDI

Nodes49
Edges48
Triples57
Avg. degree1.96
Density0.040816
Components1

Source & methodology

TTTA analyzes the structure around KDDI to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History & Companies, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — KDDI · EN edition · Analysis: TopicsToTalkAbout

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