Issued Patents All Time
Showing 51–53 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5713802 | Golf ball having two-layer cover structure | Keiji Moriyama, Masatoshi Yokota | 1998-02-03 |
| 5697856 | Solid golf ball and process for producing the same | Keiji Moriyama, Hidenori Hiraoka, Kazushige Sugimoto, Masatoshi Yokota | 1997-12-16 |
| D382033 | Golf ball | Keiji Moriyama | 1997-08-05 |