Tohoku Factory, SANNO Co., Ltd.Logo Tohoku Factory, SANNO Co., Ltd.

The leader in precious metal surface processing

+81-24-963-0330

+81-24-963-0218

  • photo
  • Location 〒963-0215
    2-5-6 Machiikedai, Koriyama City, Fukushima
  • Representative President, Keiji Suzuki
  • Foundation 1958
  • Capital 962.20 Million Yen
  • Number of employees 285
  • Industry Electronic parts, devices and electronic circuits

Business Overview

* Precious metal surface processing for electronic parts such as connectors, switches etc
* Precision pressing including die design & production, and precision (metal) stamping

Product / Commodity Name

Our products are used for a wide range of electronic devices ranging from computers, smartphones, mobile phones, digital cameras, copiers, vehicles, game consoles, LCDs etc.

Message from a Representative

Ever since the Company's founding as Sanno Tokin Kogyosho (Plating industry) in 1958, our core business has been the precious metal surface treatment of electronic parts with the emphasis on connectors. Through our business activities, we have successfully accommodated the desires and demands of many customers.
We will continue to develop next-generation products that employ our plating technologies, aggregated over many years, and remain fully committed to meeting our customers' requirements and solving their manufacturing issues. By doing so, we aspire to win the trust of our customers as their partner of choice.

Technology You Want to Offer

Our surface treatment utilizes precious metals such as gold, palladium/nickel alloy, tin, silver, copper/tin etc, and we specialize in microprocessing including nickel barrier processing for selective plating as well as spot plating.
We are also currently developing technologies on hydrogen permeable films and silver plated acrylic resin particles with the use of surface treatment technologies.

Machinery and/or Equipments You Own

Name of Machinery and/or Equipments Manufacture and Model Main Specs (size, features etc) # of Units
Name of Machinery and/or Equipments

FIB: Focused Ion Beam

Manufacture and Model

Hitachi High-Technologies Microscope system for nanofabrication: SMI500

Main Specs (size, features etc)

Cross-sectional analysis

# of Units

1

Name of Machinery and/or Equipments

CP: Cross Section Polisher

Manufacture and Model

JEOL Specimen Preparation Equipment: SM-09010CP

Main Specs (size, features etc)

Cross-sectional analysis

# of Units

1

Name of Machinery and/or Equipments

EPMA

Manufacture and Model

JEOL Field Emission Electron Probe Microanalyzer(FE-EPMA): JXA-8500F

Main Specs (size, features etc)

Surface analysis

# of Units

1

Name of Machinery and/or Equipments

SEM

Manufacture and Model

Hitachi High-Technologies Scanning electron microscope: S-3000H

Main Specs (size, features etc)

Surface analysis

# of Units

1