Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883623 | Method for producing a golf club head | Itsushi Nagamoto, Tomoharu Yamashita | 1989-11-28 |
| 4859554 | Multilayer photoreceptor | Toshinori Yamazaki, Eiichi Sakai, Hiroyuki Nomori | 1989-08-22 |
| 4824116 | Golf club head | Itsushi Nagamoto, Ryohei Tajima | 1989-04-25 |
| 4803023 | Method for producing a wood-type golf club head | Koichi Enomoto | 1989-02-07 |