Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5846372 | Method of manufacturing a mat for decorative aggregate exposed finishes | Teruaki Kobayashi, Yoshikazu Okada, Hiroyuki Ogawa, Kazuhisa Ishigaki | 1998-12-08 |
| 5185039 | Hydraulic composition | Tsunehisa Ueda, Tadao Natsuume | 1993-02-09 |
| 4957596 | Process for producing coke | Keizoo Ukita, Masaaki Inoue | 1990-09-18 |
| 4883535 | Novel hydraulic composition | Tsunehisa Ueda, Tadao Natsuume | 1989-11-28 |