Japan
焼結機械部品の製造
含油軸受の製造
粉末冶金製品の研究開発
粉末冶金製品の販売
粉末冶金製品製造
焼結部品製造
〒950-8640 新潟県新潟市東区小金町3-1-1
673 people
897 people
Company name
Group
Parent
Subsidiary
Customer
Supplier
Alliance
Bank
Shareholder
Diamet Klang (Malaysia) Sdn., Bhd.
Group
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36 entries
| Date | Description |
|---|
| 1944 |
三菱鉱業（株）新潟金属工業所創設 |
| 1944 |
Established the Niigata Metals Plant of Mitsubishi Mining Company Ltd. |
| 1947 |
焼結含油軸受 生産開始 |
| 1947 |
Started the production of oil-impregnated sintered bearings |
| 1950 |
三菱鉱業（株）から分離 三菱金属鉱業（株）発足 |
| 1950 |
Founded Mitsubishi Metal Mining Company Ltd. as a spin off from Mitsubishi Mining Company Ltd. |
| 1961 |
第二工場（現・本社工場）落成 |
| 1961 |
Opened the Second Factory (presently the headquarters plant) |
| 1964 |
新潟地震により第一工場焼失 第二工場に集約 |
| 1964 |
The first plant burned down in the Niigata earthquake and was integrated into the second plant. |
| 1973 |
三菱金属（株）に社名変更 |
| 1973 |
Changed the company name to Mitsubishi Metal Corp. |
| 1983 |
粉末冶金製品製造技術輸出 |
| 1983 |
Exported the manufacturing technology of powder metallurgy. |
| 1987 |
藤岡事業所（現・藤岡工場）操業開始 |
| 1987 |
Started operation of the Fujioka office (presently the Fujioka plant) |
| 1988 |
Diamet（アメリカ）操業開始 |
| 1988 |
Started operation of Diamet Corporation (America) |
| 1990 |
三菱マテリアル（株）に社名変更 |
| 1990 |
Changed the company name to Mitsubishi Materials Corporation |
| 1993 |
Diamet Klang (Malaysia) Sdn., Bhd.操業開始 |
| 1993 |
Started operation of Diamet Klang (M) Sdn., Bhd. (Malaysia) |
| 2005 |
上海菱青汽車零部件有限公司（中国）操業開始 |
| 2005 |
三菱マテリアルPMG（株）設立 |
| 2005 |
Started operation of Diamet Lingqing (Shanghai) Co., Ltd. (China) |
| 2005 |
Established Mitsubishi Materials PMG Co., Ltd. *1 |
| 2005-12-01 |
設立 |
| 2005-12-01 |
Established |
| 2009 |
（株）ダイヤメットに社名変更 |
| 2009 |
Changed the company name to Diamet Corporation *2 |
| 2012 |
広東達宜明粉末冶金有限公司（中国）操業開始 |
| 2012 |
Started operation of Guangdong Diamet Powder Metallurgy Co., Ltd. (China) |
| 2023 |
持株会社である株式会社メプロホールディングスを設立 |
| 2023 |
Established Mepro Holdings Co., Ltd., a holding company. |
| 2024 |
DIAMET SINTERED METAL INDIA PRIVATE LIMITED（インド）を設立 |
| 2024 |
Established DIAMET SINTERED METAL INDIA Pvt. Ltd. (India) |
7110001008388
| Trade name | 株式会社ダイヤメット |
|---|
| Trade name (kana) | ダイヤメット |
|---|
| Name in English | |
|---|
| Corporation type | 301 |
|---|
| Address | 〒950-0026 新潟県新潟市東区小金町３丁目１番１号 |
|---|
| Postal code | 9500026 |
|---|
| Prefecture code | 15 |
|---|
| City code | 102 |
|---|
| Address outside Japan | |
|---|
| Prefecture in English | |
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| City in English | |
|---|
| Address outside Japan in English | |
|---|
| Corporate number assignment date | 2015-10-05 |
|---|
| Update date | 2025-10-15 |
|---|
| Change date | 2025-10-02 |
|---|
| Registry closure date | |
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| Reason for registry closure | |
|---|
| Successor corporate number | |
|---|
| Details of the change | 令和７年１０月１日新潟市東区平和町１４番地株式会社ピーエムテクノ（1110001005069）を合併 |
|---|
| Latest record | 1 |
|---|
| Excluded from search | 0 |
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| Processing type | 71 |
|---|
| Correction type | 0 |
|---|
| Trade name image ID | |
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| Address image ID | |
|---|
| Sequence number | 3030502 |
|---|
Source: National Tax Agency Corporate Number Publication Site, basic three items
7110001008388
| Corporate number | 7110001008388 |
|---|
| Trade name | 株式会社ダイヤメット |
|---|
| Trade name (kana) | ダイヤメット |
|---|
| Trade name (alphabet) | |
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| Registry closure date | |
|---|
| Reason for registry closure | |
|---|
| Registered address | 新潟県新潟市東区小金町３丁目１番１号 |
|---|
| Postal code | 9500026 |
|---|
| Prefecture | 新潟県 |
|---|
| Prefecture code | 15 |
|---|
| City or district | 新潟市東区 |
|---|
| City code | 102 |
|---|
| Street address | 小金町３丁目１番１号 |
|---|
| Organisation type | 301 |
|---|
| Processing type | 71 |
|---|
| Correction type | 0 |
|---|
| Status | |
|---|
| Representative | |
|---|
| Capital | |
|---|
| Employees | 561 |
|---|
| Employees (male) | 411 |
|---|
| Employees (female) | 118 |
|---|
| Business summary | 焼結部品の製造、研究開発及び販売 |
|---|
| Website URL | http://www.diamet.co.jp/ |
|---|
| Year founded | |
|---|
| Business category | E:製造業 |
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| Date established | |
|---|
| Unified government qualification - grade | |
|---|
| Unified government qualification - business items | |
|---|
| Update date | 2025-10-15 |
|---|
| Key information | 7110001008388 |
|---|
Source: gBizINFO (Ministry of Economy, Trade and Industry)
2026-09-21 18:06 (Model: gpt-oss-20b(99) )
