Coins Presently Minted
Coin Manufacture (Osaka, Saitama, Hiroshima)
Japan Mint manufactures 6 kinds of regular coins including 500 yen bicolor clad coins. In addition to regular coinage, the Mint has manufactured several kinds of commemorative coins to mark major national events.
500 yen Bicolor Clad Coin

| Material | Nickel-brass, cupronickel and copper |
|---|---|
| Composition | Copper 750 Zinc 125 Nickel 125 |
| Weight | 7.1g |
| Diameter | 26.5mm |
| Commencement of Production |
2021 |
100 yen Cupronickel Coin

| Material | Cupronickel |
|---|---|
| Composition | Copper 750 Nickel 250 |
| Weight | 4.8g |
| Diameter | 22.6mm |
| Commencement of Production |
1967 |
50 yen Cupronickel Coin

| Material | Cupronickel |
|---|---|
| Composition | Copper 750 Nickel 250 |
| Weight | 4g |
| Diameter | 21mm |
| Center hole diameter | 4mm |
| Commencement of Production |
1967 |
10 yen Bronze Coin

| 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

| 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

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







