Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6458287 | Piezoelectric ceramic composition and piezoelectric element containing the same | Masamitsu Nishida, Keiichi Takahashi, Kojiro Okuyama, Junichi Kato | 2002-10-01 |
| 6426017 | Piezoelectric ceramic composition and piezoelectric element using the same | Keiichi Takahashi, Masamitsu Nishida | 2002-07-30 |