Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5597432 | Method for making balls for sports | Hideomi Shishido, Shigeo Doi, Masanori Hirakiuchi | 1997-01-28 |
| 5380185 | Ball for ball game and molding apparatus for forming the same | Hideomi Shishido, Shigeo Doi, Masanori Hirakiuchi | 1995-01-10 |
| 5306001 | Game ball | Hideomi Shishido, Shigeo Doi, Masanori Hirakiuchi | 1994-04-26 |