Last updated : 04/01/2020
Tsutsumida Precious Metal Industry Co., Ltd.
- President
- Eiji TSUTSUMIDA (Mr.)
- Year established
- 1967
- Capital
- 77,000,000 yen
- Sales
- 2,400,000,000 yen
- Employees
- 18
- Postal (zip) code
- 733-0012
- Company address
- 2-14-23 Nakahiro-cho, Nishi-ku, Hiroshima-shi
- Phone
- 082-293-2233
- Fax
- 082-295-0643
- E-Mail
- info@gold-tsutsumida.co.jp
- URL
- http://www.gold-tsutsumida.co.jp
Company PR
We are the only one gold wholesaler in Chugoku and Shikoku areas, and an official member of the Japan Gold Bullion Distributors Association (General Incorporated Association). Please be assured, as this company deals in actual products and cash, and is the only JIS standard approved dental alloy manufacturing plant in Chugoku, Shikoku and Kyushu areas. We specialize in the recycling of precious metals.
Major Products
- Trading of precious metals (gold, silver, platinum) in actual products and in cash.
- JIS gold/palladium 12%, JIS silver alloy Type 1 and Type 2 for dental use
- Platinum-added gold and gold alloy for dental use, precious metal materials for dental metal-ceramic restorations.
- Refining and analysis of recycled precious metals (gold, silver, platinum, palladium)
- Sale of jewelry (jewels, K18 necklaces, rings, gold coins), buy of precious metal products (rings, necklaces, pierces, oval gold coins, large oval gold coins, gold cups, etc.) on the same day in the shop and appraisement of diamond grading
Major Customers
- D and I, Ltd.
- Dental clinics and dental technician’s offices nationwide
- Trading company (Sumisho Materials Corporation)
- Ground metal traders (Tanaka Kikinzoku Kogyo Co., Ltd. and Ishifuku Metal Industry Co., Ltd. And TOKURIKI HONTEN CO., LTD.)
Major Facilities/Equipment
- High frequency continuous casting machine 1
30 kW
- High frequency melting furnace 2
1300 °C
- Argon arc melting furnace 1
1800 °C
- X-ray fluorescent analyzer 2
X-ray irradiation type
- Rolling machine 3
Two-stage type
- Thermal expansion testing equipment
- Pulling testing equipment
Technology Employed
- Fabricated metal products manufacturing industry
- Refine precious metal (gold, silver, platinum and palladium)
- Fabricated metal products manufacturing industry
- You can measure specific gravity accurately and quickly using electronic densimeter.
- Fabricated metal products manufacturing industry
- Using a high frequency continuous casting machine, can cast 100 kg of precious metal alloy into the dimensions 3 mm × 110 mm in 3 hours.
- Fabricated metal products manufacturing industry
- We have rolling machines, power press and high precision injection mold to punch out product weight (1g) accurately.
- Fabricated metal products manufacturing industry
- The technology that can highly-control softening heat treatment and hardening heat treatment of metals.
- Fabricated metal products manufacturing industry
- Conduct chemical and X-ray analyses on precious metals (gold, silver, platinum, palladium).
- Fabricated metal products manufacturing industry
- Test metal alloy by JIS standard for tensile strength, hardness, elasticity and thermal expansion generated by compression heat.
- Fabricated metal products manufacturing industry
- grading gold bullion
Primary Area of Technical Expertise
The level of Tsutsumida Precious Metal Industry’s refining, and our analysis of precious metals is as good as the Mint Bureau. To date, a former manager retired from the Test Section of the Mint Bureau and specialists in testing have served as technological advisers at Tsutsumida Precious Metal Industry, to teach us refining and analysis technology. We are the only company in the Chugoku/Shikoku region that can stamp the company seal on pure recycled gold.
Future Business Challenges
- Refining/analysis of precious metals from alloys other than those for dental use (including electrical machinery, electronic parts, gold products, etc.).
- Development of alloy that is highly biocompatible among dental alloy.
Future Technical Challenges
- Fabricated metal products manufacturing industry
- Using the X-ray fluorescent analyzer, can conduct qualitative and quantitative analyses of alloys.
Other
An official member of the Japan Gold Bullion Distributors Association (General Incorporated Association). Conducted joint research with Professor Horibe, Faculty of Science and Engineering, Fukuoka Dental College, on "Characteristics of Gold-Silver-Palladium Alloy Produced by Continuous Casting (1994 - 1995)" and released it's research results.
Obtained ISO13485 certification.
