Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6460321 | Racquet string | Tatsumi Koshimae | 2002-10-08 |
| 5478072 | Racket string and stringed rackets using the same | Yutaka Takashima | 1995-12-26 |
| 4607409 | Method and apparatus for processing textiles | Sumio Hishimuma | 1986-08-26 |
| 4464431 | Friction-melt resistant textile product and preparing method thereof | Hisao Hisaki, Junnosuke Nagashima | 1984-08-07 |