Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6548162 | Sanitary ware and process for producing the same | Koichi Hayashi, Hirotaka Ishibashi, Tomoyasu Ichiki, Masaaki Ito, Masami Ando +5 more | 2003-04-15 |
| 6514622 | Sanitary earthen products | Makoto Hayakawa, Koichi Hayashi, Masami Ando, Masaaki Ito, Tomoyasu Ichiki +1 more | 2003-02-04 |