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Hamada Infrastructure Ltd.

Hamada Infrastructure Ltd. #590007179

33
members (measured 22 Oct 2026, 20:27 UTC)
12 May 2026
created (per Roblox API)
10 August 2026
first measured by this register

OtherJAbusinessinfrastructurejapanese_company

Description

ハマダ・インフラストラクチャー株式会社 設立:1991年6月10日

Written by the group; not a statement by this register.

Membership history

Growth

Growth history is still building. We hold one measurement for this entry. A trend needs at least two, taken days apart — so this will fill in on its own rather than being estimated. We do not publish numbers we have not measured.

Measurement log — every members count we have recorded
Measured (UTC)MembersChange
10 Aug 2026, 12:0733first reading

Ownership

Owned by 渡辺修二 (@ShujiWatanabe) as measured.

Owner first observed: user #471541521 — observed between sweeps, detected 14 Aug 2026, 00:08 UTC

Detection dates bound when a change was seen by this register, not when it happened.

Groups seen changing owner — the largest ever handed over and the most recent — are on the ownership transfers board.

Members we’ve seen

渡辺修二 (@ShujiWatanabe) — Hamada Ltd Holder. (rank 255)

@ShigeoMatsumoto — 社長 (rank 200)

@AokiMiyamoto — 事務局長 (rank 195)

aizen (@Wowwzersz) — 事務局長 (rank 195)

YukariYatagarasu (@YukariMisora) — 消費者 (rank 180)

RyujiKatsuno (@murdersans594) — 消費者 (rank 180)

BewitchedCiao (@KandaKiyoshi) — 消費者 (rank 180)

HeavenSent (@sSCorpionKhian) — 消費者 (rank 180)

yuna (@Imharrynotbob) — 消費者 (rank 180)

@KenjiroNakano — 消費者 (rank 180)

Ichiro Kobayashi (@IchiiroKobayashi) — 消費者 (rank 180)

ShinjiKyuryu (@briellellie) — Member (rank 1)

Aikawa (@AikawaAkimoto) — Member (rank 1)

A sample — only members this register has independently measured, highest rank first. Not the full roster.

Rank structure

Hamada Ltd Holder.1
会長1
社長1
事務局長3
部門長0
消費者18
Member33
Guest0

Roles and per-rank member counts as Roblox reports them (rank 0 = guest … 255 = owner).

Open data

Download this group’s measured record — free to reuse with attribution: membership history (CSV) · full record (JSON)

Each file carries its licence and retrieval time inside it, and is generated from the same measurements shown above.