Asaka Riken Co., Ltd., Precious Metal Division

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Precious Metal Division

Recycle & Development

Valuable metals are effectively collected from urban mines by fully utilizing three core technologies.  Used jigs and advanced components are cleaned and regenerated at the same time.

Crystal device, LED, power device, precision press, printed-circuit board, etc.  Etching technology cultivated from experiences to face and resolve issues raised by customers in each industry with utmost efforts as well as from core chemical knowledge is Asaka Riken’s greatest strength.  We have acquired high evaluation from our customers by utilizing these experiences and technology and accumulating transactions with many companies including automobile manufacturers, major crystal oscillator manufacturers, and jewelry/eyeglass manufacturers.

Collection of Valuable Metals

Collection of Valuable Metals

We effectively collect valuable precious metals including gold, silver, platinum, palladium, etc. from substrate scraps, defective products and disposed products received from businesses that handle materials containing valuable metals such as electronic components (semiconductor, LED, power device, etc.) manufacturers, jewelry/eyeglass manufacturers, etc.  The secret of our high collection rate, high speed, and capability to accept many types and small lots lies in the unique dissolution/extraction method.  It is a collection/purification technology with many advantages including shorter purification time compared with the electrolytic method or wet method, high quality, low cost, reduction of environmental burdens, etc.

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Precision Cleaning

Precision Cleaning

Jigs, etc. such as shield plates and masks used for dry coating of advanced components are cleaned.  Jigs with thin and complicated shapes are effectively cleaned with chemical cleaning based on “chemical stripping” that causes less damage to base materials than mechanical stripping and is more effective than electrolytic stripping, followed by the final cleaning line that uses purified water.

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Regeneration of Advanced Components

Regeneration of Advanced Components

Electronic devices have been developed one after another.  Advanced components are regenerated and recycled from defective products that occurred in the production process.  Multiple coatings attached are stripped with a unique technology and can be collected and regenerated without destroying the essential nature of components and utilization purposes; therefore can be reused after return.

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Evaluation System of Dental Metals

Evaluation System of Dental Metals

Valuable metals are collected from dental scraps and appraised in cooperation with trading companies, etc. of dental equipment.  The high collection rate, high transparency and high appraisal rate have received a great response since the very beginning of business, achieving trust and recognition from not only affiliated customers but also dentists.  Affiliates are steadily growing nationwide.

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