Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4759860 | Two-cycle engine oil composition | Noboru Watanabe, Hiromiti Seiki | 1988-07-26 |
TT
Tosimitu Tanaka
Idemitsu Kosan Co.: 1 patents #699 of 1,237Top 60%
Overall (All Time): #3,956,158 of 4,157,543Top 100%
1
Patents All Time