Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4946645 | Steel for gears, having high strength, toughness and machinability | Kunio Namiki, Atsuyoshi Kumura, Toshihiko Matsubara | 1990-08-07 |
SN
Sukehisa Niwa
Daido Tokushuko: 1 patents #152 of 382Top 40%
Overall (All Time): #3,908,743 of 4,157,543Top 95%
1
Patents All Time