大口電子株式会社
Ohkuchi Electronics Co., Ltd.
Alias
Japan
貴金属リサイクル
機能性インク
結晶材料（サファイア基板）
SiC基板（パワー半導体用）
〒895-2501 鹿児島県伊佐市大口牛尾1755番地2
Tomoyuki Saito
402 people
402 people
Company name
Group
Parent
Subsidiary
Customer
Supplier
Alliance
Bank
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18 entries
| Date | Description |
|---|
| 1641 |
The Ohkuchi Gold Mine was discoverd. |
| 1940 |
The accumulated amount of gold yielded in the Ohkuchi Gold Mine reached 1,200kg per year. |
| 1977 |
The Ohkuchi Gold Mine was closed and started precious metals recycling. |
| 1981 |
住友金属鉱山㈱の全額出資により大口電子(株)設立 |
| 1981-10-01 |
住友金属鉱山㈱の全額出資により大口電子(株)設立 |
| 1982 |
The company started production of outer lead plating of lead frames. (withdrew from the production in 2003.) |
| 1984 |
The company started production of lead frames and bonding wires. (withdrew from the production in 2013.) |
| 1986 |
The company absorbed Ohkuchiseikin Co., Ltd., its main business was precious metals recycling. |
| 1992 |
The company started lead frames etching process. |
| 1997 |
The company started IC-Stiffener production. (withdrew from the production in 2016.) |
| 2000 |
The company stared tab tape production. (The production was transferred to a Taiwanese group company in 2005.) |
| 2005 |
The company started functional ink materials production. |
| 2011 |
The company started crystal materials(sapphire) production. |
| 2013 |
The lead frames business was split into Ohkuchi Materials Co., Ltd. (Dissolution/liquidation in March 2024). |
| 2015 |
The company withdrew from the sapphire materials production, starting lithium tantalate and lithium niobate materials production. |
| 2024-03 |
Split up of the lead frames business, establishing Ohkuchi Materials Co., Ltd. (Dissolution/liquidation in March 2024). |
| 2024-04 |
SiC事業 ㈱サイコックス大口工場設立（2025年4月株式会社サイコックスは住友金属鉱山株式会社へ吸収合併） |
| 2025-04 |
Ohkuchi Electronics Co., Ltd. has started the SiC business. |
1340001007447
| Trade name | 大口電子株式会社 |
|---|
| Trade name (kana) | オオクチデンシ |
|---|
| Name in English | |
|---|
| Corporation type | 301 |
|---|
| Address | 〒895-2501 鹿児島県伊佐市大口牛尾１７５５番地２ |
|---|
| Postal code | 8952501 |
|---|
| Prefecture code | 46 |
|---|
| City code | 224 |
|---|
| Address outside Japan | |
|---|
| Prefecture in English | |
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| City in English | |
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| Address outside Japan in English | |
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| Corporate number assignment date | 2015-10-05 |
|---|
| Update date | 2020-02-03 |
|---|
| Change date | 2015-10-05 |
|---|
| Registry closure date | |
|---|
| Reason for registry closure | |
|---|
| Successor corporate number | |
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| Details of the change | |
|---|
| Latest record | 1 |
|---|
| Excluded from search | 0 |
|---|
| Processing type | 01 |
|---|
| Correction type | 1 |
|---|
| Trade name image ID | |
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| Address image ID | |
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| Sequence number | 5600191 |
|---|
Source: National Tax Agency Corporate Number Publication Site, basic three items
1340001007447
| Corporate number | 1340001007447 |
|---|
| Trade name | 大口電子株式会社 |
|---|
| Trade name (kana) | オオクチデンシ |
|---|
| Trade name (alphabet) | |
|---|
| Registry closure date | |
|---|
| Reason for registry closure | |
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| Registered address | 鹿児島県伊佐市大口牛尾１７５５番地２ |
|---|
| Postal code | 8952501 |
|---|
| Prefecture | 鹿児島県 |
|---|
| Prefecture code | 46 |
|---|
| City or district | 伊佐市 |
|---|
| City code | 224 |
|---|
| Street address | 大口牛尾１７５５番地２ |
|---|
| Organisation type | 301 |
|---|
| Processing type | 01 |
|---|
| Correction type | 1 |
|---|
| Status | |
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| Representative | |
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| Capital | |
|---|
| Employees | 413 |
|---|
| Employees (male) | 319 |
|---|
| Employees (female) | 69 |
|---|
| Business summary | 電子材料部品の製造 |
|---|
| Website URL | |
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| Year founded | |
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| Business category | E:製造業 |
|---|
| Date established | |
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| Unified government qualification - grade | |
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| Unified government qualification - business items | |
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| Update date | 2020-02-03 |
|---|
| Key information | 1340001007447 |
|---|
Source: gBizINFO (Ministry of Economy, Trade and Industry)
2026-09-21 18:02 (Model: gpt-4.1-nano )
