Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6923699 | Method of making a spark plug | Yoshihiro Matsubara, Shinichi Hiramatsu, Kazumi Kawamura | 2005-08-02 |
| 6864623 | Spark plug | — | 2005-03-08 |
MI
Masahiro Ishikawa
Overall (2005): #44,477 of 245,428Top 20%
2
Patents 2005