CSR/Environmental Activities

Consumer Safety and Protection

Rubycon products contribute to society through power electronics technologies

  Urgent global themes such as energy issues are faced by societies. Core technologies to control energy with countermeasures to avoid escalation of global warming with power electronics are of primary importance. Rubycon is proposing capacitors to various power conversion devices to contribute higher efficiency, longer life and miniaturization.

«Conductive Polymer Aluminum Solid Electrolytic Capacitor»

  Conductive polymer aluminum solid electrolytic capacitors have a wider temperature range, are more compact, have lower ESR, and higher resistance to ripple current than other aluminum electrolytic capacitors. These features enable high-efficiency power supply design and can contribute to the reduced number of parts. The net result of this capacitor technology is energy savings improved efficiency.

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Example of part reduction with conductive polymer aluminum solid electrolytic capacitor

Aluminum Solid Electrolytic Capacitor

«Power Film Capacitor»

  Voltage and current of main circuits have been increased to improve efficiency in power electronics. Most notably, in applications such as solar/wind power and automotive. Demand of large film capacitors (referred to as power film capacitors) is increasing. We are addressing deposition technology and low ESL (inductance) designs to improve efficiency and improve miniaturization.

Power Film Capacitor
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«Screw Terminal Type Aluminum Electrolytic Capacitor»

  Screw Terminal Type Aluminum Electrolytic Capacitor is used to main circuit of power electronics together with power film capacitor.
  We are downsizing dimensions and raising withstand voltage with our independent development of new electrolytes and adoption of high capacitance etched foil.
Stud screw type capacitor has efficient heat radiation structure and high resistance to ripple current, so as to contribute to efficient package and downsizing of equipment.
  We are further addressing to development of new electrolyte and foil for higher voltage use, which is important to circuits with the next-generation power electronics semiconductor.

Screw Terminal Type Aluminum Electrolytic Capacitor
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«Electric Double Layer Capacitor»

  Electric double layer capacitors use "electric double layer" produced on the boundary between the electrode and electrolyte (as dielectric) for storing electric charges. This capacitor realizes quick charge-discharge cycles as well as long life since there aren't chemical reactions to store charges. This capacitor is ideal for applications requiring momentary large current such as power assist and energy regeneration. If the capacitor is used as the main power for rechargeable equipment, maintenance is reduced.

Aluminum Solid Electrolytic Capacitor

Security of Product Safety

  We, closely check compliance and non-use of banned substances in planning phase of product development, in order to secure product safety.
  We also describe safety instructions in our catalog and delivery specifications.
  We perform reliability tests with various processes to secure safety of products to be manufactured.
  We conduct reliability tests in various phases, including process design phase to secure correct materials, specifications and production conditions. During the mass production phase we check reliability of all products through regular sampling, also during the product development and planning phases. Such tests include reliability and the general process is confirmed in addition to safety, so as to maintain the reliability of Rubycon products.
  We are striving to supply safe and reliable products now and in the future.

Security of Product Safety

Response to Product Accident and Failure

  Quality Assurance Center (QA Center) receives complaints and investigation requests for accident and failure from customers through each sales office.
  QA Center uses special equipment for the primary investigation of returns and notifies complaint information to the concerned factory on the current day. Then the center starts investigation of production record and the root cause of the failure.
  Quality Control Section in the concerned factory performs expansion estimation and prepares measures to report to QA Center. QA Center reports the measures to each customer.
  QA Center further performs validation and horizontal development of the measures through internal audit, so as to confirm the change.
  Under the motto "I guarantee the quality," all of Rubycon's members are aiming to win customer satisfaction as well as addressing quality improvements.

Response to Product Accident and Failure

C0C: Claim 0 Campaign

  We, accept every complaint from customers with sincerity in order to improve customer satisfaction and quality related with product safety.
  We have started quality improvement activities as the manufacturer responsible for our products, so as to attain our goal "Claim 0."
  We started Claim 0 Campaign (C0C) in May, 2012.
  In the result of the sixth year, 66% reduction in the complaint rate (number of complaints/output) has been kept. We are addressing to C0C activities to attain "Claim 0."

Transition of Claim Rate

Factory recognition commendation

  We evaluate the outcome of C0C activities by factory, and we grant an Award every year.
  In 2017, the Akita Rubycon Daisen Factory, which achieved the "zero" complaint for 33 consecutive months, won the Award.

Improvement of Customer Satisfaction

  We have the quality policy of "manufacture to win customer satisfaction" that provides customers with relief and trust through 5 pillars of cooperation power, promptness, analyzing ability, quality control ability, small group activities. We are addressing Customer Satisfaction through quality to contribute to the society and the future.
  We conduct customer questionnaire every year including cost, delivery and service as well as quality, so as to improve customer satisfaction.

Improvement of Customer Satisfaction

ISO/IATF audit and internal audit

  We have acquired ISO 9001, IATF, ISO14001 and OHSAS18001 are engaged in production activities based on internal regulations and standards.
  As well as receiving audits by third-party organizations in order to confirm whether the production actvities are conducted firmly in accordance with the standard requirements, we are also promoting interconnection among various sections in the company and working on improvement of mutual levels, by conducting internal audits by the auditor team whose representatives are selected from each division.

ISO9001 and IIATF Information

OHSAS18001 Information

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1938-1, Nishi-Minowa Ina City, Nagano 399-4593 Japan TEL:0265-72-7111 FAX:0265-73-2914