Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4427914 | Sparkplug with improved antifouling performance | Hisao Mizuno, Shunichi Takagi, Kichio Nakahara | 1984-01-24 |
HN
Hiroyuki Nagae
Overall (All Time): #4,028,556 of 4,157,543Top 100%
1
Patents All Time