Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6591891 | Method for making sand covered with bentonite, the sand, and a method for recycling molding sand for a mold using the sand covered by bentonite | Ryoji Kanayama, Yasunori Yoshida, Kuniyasu Mori, Yukikazu Ando | 2003-07-15 |
| 6538370 | Cathode-ray tube and electron gun having reduced radiation | Yasunobu Amano, Norifumi Kikuchi, Takashi Shirai, Motomu Tadama, Mitsunori Endou | 2003-03-25 |