Coins Presently Minted

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Coin Manufacture (Osaka, Tokyo, Hiroshima)
Japan Mint manufactures 6 kinds of regular coins including 500 yen nickel-brass coins. In addition to regular coinage, the Mint has manufactured several kinds of commemorative coins to mark major national events.

500 yen Nickel-brass Coin

Image of 500 yen

Material Nickel-brass
Composition Copper 720
Zinc 200
Nickel 80
Weight 7g
Diameter 26.5mm
Commencement
of Production
2000

Details: Analyzing 500 yen Nickel-brass Coin

100 yen Cupronickel Coin

Image of 100 yen

Material Cupronickel
Composition Copper 750
Nickel 250
Weight 4.8g
Diameter 22.6mm
Commencement
of Production
1967

50 yen Cupronickel Coin

Image of 50 yen

Material Cupronickel
Composition Copper 750
Nickel 250
Weight 4g
Diameter 21mm
Center hole diameter 4mm
Commencement
of Production
1967

10 yen Bronze Coin

Image of 10 yen

Material Bronze
Composition Copper 950
Zinc 40 to 30
Tin 10 to 20
Weight 4.5g
Diameter 23.5mm
Commencement
of Production
1959

5 yen Brass Coin

Image of 5 yen

Material Brass
Composition Copper 600 to 700
Zinc 400 to 300
Weight 3.75g
Diameter 22mm
Center hole diameter 5mm
Commencement
of Production
1959

1 yen Aluminum Coin

Image of 1 yen

Material Aluminum
Composition Pure Aluminum
Weight 1g
Diameter 20mm
Commencement
of Production
1955