[JPN] Japan Maritime Self-Defense Force #16743029

29

members (measured 19 Oct 2026, 21:05 UTC)

8 January 2023

created (per Roblox API)

10 August 2026

first measured by this register

Military & clansENmilitaryjapanroleplay

Description

Japan Maritime Self-Defense Force Commanding Officers CoJS: N/A CoMS: HMSAstute1

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

Membership history

Growth

3 measurements spanning 52 days, net -2. Dots are measurements; the straight line between them is drawn to join them, not to claim we know the path taken in between — snapshots are recorded only when a count changes, so gaps mean “no change observed”, never “interpolated”. The vertical axis spans 29–31 and does not start at zero.

Measurement log — every members count we have recorded
Measured (UTC)	Members	Change
2 Oct 2026, 04:33	29	-1
16 Aug 2026, 17:41	30	-1
10 Aug 2026, 21:21	31	first reading

Ownership

Owned by holder (@dinolorean099) as measured.

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

Members we’ve seen

holder (@dinolorean099) — グループ経営者 / Group Holder (rank 255)

dinolorean (@DINOLOREAN00) — コミュニティー管理 | Community Manager (rank 254)

Fubuki (@Natsuiro_Matsurii) — 2等海佐 | Commander (rank 19)

@MarceloCamorra — 海曹長 | Chief Petty Officer (rank 7) terminated

The_Hitman (@CaptainDonel) — 1等海士 | Seaman (rank 3)

Canto (@C4NT0N3SE) — 2等海士 | Seaman Apprentice (rank 2)

KenjiKawamoto (@Officer8771) — 自衛官候補生 | Seaman recruit (rank 1)

chris (@mh8l) — 自衛官候補生 | Seaman recruit (rank 1)

therealjameycaldwell (@Dragonliod) — 自衛官候補生 | Seaman recruit (rank 1)

Gabrielle (@Poloniurn) — 自衛官候補生 | Seaman recruit (rank 1)

@RealDiamondRaptor — 自衛官候補生 | Seaman recruit (rank 1)

TheGuardian (@LucianAquila) — 自衛官候補生 | Seaman recruit (rank 1)

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

Rank structure

グループ経営者 / Group Holder1

コミュニティー管理 | Community Manager1

防衛大臣 | Minister of Defence1

統合幕僚長および海上幕僚長 | Admiral & Chief of Staff0

海将 | Vice Admiral0

海将補 | Rear Admiral0

1等海佐 | Captain0

2等海佐 | Commander1

3等海佐 | Lieutenant Commander1

1等海尉 | Lieutenant0

2等海尉 | Lieutenant (junior grade)0

3等海尉 | Ensign0

准海尉 | Warrant officer0

海曹長 | Senior Chief Petty Officer0

海曹長 | Chief Petty Officer1

1等海曹 | Petty Officer First Class0

2等海曹 | Petty Officer Second Class0

3等海曹 | Petty Officer Third Class1

1等海士 | Seaman3

2等海士 | Seaman Apprentice2

Member30

自衛官候補生 | Seaman recruit18

Guest0

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

Related groups

Groups whose measured members overlap with this one — a sample from our membership graph.

[JPN] Japan Self-Defense Fοrces#16098456 · 12 shared members

SEA Military#2648601 · 8 shared members

Pilot Training Club#2794513 · 6 shared members

Polarstar Studios#5615635 · 6 shared members

[JP] Japanᅠᅠ#33210263 · 6 shared members

Paradoxum Games#4914494 · 5 shared members

Chillz Studios#2782840 · 3 shared members

(学乱) Gakuran#416091513 · 3 shared members

SCP | Roleplay Community#5479038 · 3 shared members

Stateview Correctional Facility. ∞#5025380 · 3 shared members

Hapless Studios#5502618 · 3 shared members

Μilitary Simulator#4800484 · 3 shared members

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.