Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6712119 | Collected sand processing method | Shigeaki Yamamoto, Ryoji Kanayama, Hisashi Harada, Hiroaki Tokita, Kazuo Sugimoto +3 more | 2004-03-30 |
| 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, Kazuo Sugimoto, Yukikazu Ando | 2003-07-15 |
| 5996678 | Apparatus for making mold | Shigeo Oda, Kimikazu Kaneto, Ryoji Kanayama, Kazuo Sugimoto | 1999-12-07 |
| 5947185 | Method and apparatus for pre-compacting molding sand | Shigeo Oda, Kimikazu Kaneto, Ryoji Kanayama, Kazuo Sugimoto | 1999-09-07 |
| 5794681 | Molding machine | Shigeo Oda, Kazuharu Matsui, Ryoji Kanayama, Kazuo Sugimoto, Kimikazu Kaneto | 1998-08-18 |
| 5791396 | Apparatus and method for producing molds | Shigeo Oda, Ryoji Kanayama, Kazuo Sugimoto | 1998-08-11 |
| 5660221 | Apparatus and method for producing molds | Shigeo Oda, Ryoji Kanayama, Kazuo Sugimoto | 1997-08-26 |