Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6475949 | Promoter for purifying internal engine exhaust and method for preparing the same | Masatoshi Yamazaki | 2002-11-05 |
| 6406513 | Nickel powder and conductive paste | Takao Hayashi | 2002-06-18 |