Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12311235 | Ball for ball game | Shinji Katsurayama, Akio Takagi, Hironori Sato, Mitsuyoshi Ishikawa | 2025-05-27 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12311235 | Ball for ball game | Shinji Katsurayama, Akio Takagi, Hironori Sato, Mitsuyoshi Ishikawa | 2025-05-27 |