Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6589475 | Lining material for glass melting furnaces, glass melting furnaces, process for producing glass products, and process for purifying the lining material | Tsugunobu Murakami | 2003-07-08 |
| 6401493 | Lining material for glass melting furnaces, glass melting furnaces, process for producing glass products, and process for purifying the lining material | Tsugunobu Murakami | 2002-06-11 |
| 6250111 | Lining material for glass melting furnaces, glass melting furnaces, process for producing glass products, and process for purifying the lining material | Tsugunobu Murakami | 2001-06-26 |
| 6017837 | Ultraviolet and infrared radiation absorbing glass | Yukihito Nagashima | 2000-01-25 |
| 4769059 | Glass melting furnace | Toshikazu Kondo | 1988-09-06 |
| 4732601 | Apparatuses for producing plate glasses | Toshikazu Kondo | 1988-03-22 |