Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5516107 | Wood type golf club head | Takaharu Okumoto, Toshio Kobayashi, Kazuo Kawada | 1996-05-14 |
| 5306450 | Method of producing wood type golf club head | Takaharu Okumoto, Toshio Kobayashi, Kazuo Kawada | 1994-04-26 |
| 5135227 | Wood-type metal golf club head and process for producing the same | Takaharu Okumoto | 1992-08-04 |