Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6221561 | Diffusion plate and method for manufacturing master die thereof | Hiroshi Kuboya, Toshiharu Takahashi, Makoto Iki, Moriyasu Shirayanagi, Koichi Maruyama +1 more | 2001-04-24 |
| 5965327 | Method for manufacturing a master die for a diffusion plate and diffusion manufactured by said method | Hiroshi Kuboya, Toshiharu Takahashi, Makoto Iki, Moriyasu Shirayanagi, Koichi Maruyama +1 more | 1999-10-12 |
| 5733710 | Method for manufacturing a master die for a diffusion plate and diffusion plate manufactured by said method | Hiroshi Kuboya, Toshiharu Takahashi, Makoto Iki, Moriyasu Shirayanagi, Koichi Maruyama +1 more | 1998-03-31 |