Overview

Rubycon Capacitors is a Japanese manufacturer of aluminum electrolytic, film, and polymer capacitors, along with switching power supply units. Founded in 1952 and headquartered in Minamiminowa, Nagano, Japan, it has an estimated 1,000-5,000 employees and an estimated annual revenue of $250-500 million. The company is privately held and serves the automotive, electric-vehicle, electronics, appliance, plumbing-hardware, and renewable-energy industries. In 2026 it announced the opening of a branch in Pune, India.

At a glance

What Rubycon Capacitors makes

The company holds IATF 16949, ISO 9001, ISO 14001, ISO 45001, and ISO/TS 16949 certifications.

Products and capabilities described on the company's own site include Aluminum (source: rubycon.co.jp).

Certifications

Rubycon Capacitors is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:

• IATF 16949 — rubycon.co.jp

• ISO 14001 — rubycon.co.jp

• ISO 45001 — rubycon.co.jp

• ISO 9001 — rubycon.co.jp

• ISO/TS 16949 — ivec-cleve.de

Latest developments

• 2026-06-30 — 「テクノフロンティア2026」出展のお知らせ – ルビコン株式会社 (rubycon.co.jp)

• 2026-06-09 — PMLCAPが集積化パワーエレクトロニクスの研究開発に貢献しています – ルビコン株式会社 (rubycon.co.jp)

• 2026-06-01 — ルビコンインド・プネ支店開設のお知らせ – ルビコン株式会社 (rubycon.co.jp)

• 2026-04-28 — 【New Product Release】 Expansion of aluminum electrolytic capacitors – Rubycon Corporation (rubycon.co.jp)

• 2026-04-21 — PMLCAPが国際宇宙ステーションISSの日本実験棟「きぼう」に取り付けられるビデオライトユニットに搭載されています – ルビコン株式会社 (rubycon.co.jp)

• 2025-07-03 — Rubycon India Pvt. Ltd. Announces New Branch Opening – Rubycon Corporation (rubycon.co.jp)

Company details

Rubycon Capacitors was founded in 1952, has an estimated 1,000-5,000 employees, and is headquartered in Minamiminowa, Nagano. On the LightSource stability read it is rated "Established & active": 74 years in operation (founded 1952). Holds IATF 16949, ISO 14001, ISO 45001, ISO 9001, ISO/TS 16949 certification(s) per public sources.

Frequently asked questions

What does Rubycon Capacitors make?

Rubycon Capacitors is a Japanese manufacturer of aluminum electrolytic, film, and polymer capacitors, along with switching power supply units. Founded in 1952 and headquartered in Minamiminowa, Nagano, Japan, it has an estimated 1,000-5,000 employees and an estimated annual revenue of $250-500 million. The company is privately held and serves the automotive, electric-vehicle, electronics, appliance, plumbing-hardware, and renewable-energy industries. In 2026 it announced the opening of a branch in Pune, India.

Where is Rubycon Capacitors headquartered?

Rubycon Capacitors is headquartered in Minamiminowa, Nagano.

When was Rubycon Capacitors founded?

Rubycon Capacitors was founded in 1952.

How big is Rubycon Capacitors?

Rubycon Capacitors has an estimated 1,000-5,000 employees, with revenue in the $250-500M range (estimated).

What certifications does Rubycon Capacitors hold?

Rubycon Capacitors lists IATF 16949 · ISO 14001 · ISO 45001 · ISO 9001 · ISO/TS 16949 on its website. Confirm the certified scope for the specific plant producing your part.

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Last verified Nov 2026. Is this your company? Request a correction.