Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5634999 | Method of producing ceramic diaphragm structure having convex diaphragm portion | Yukihisa Takeuchi, Hideo Masumori, Katsuyuki Takeuchi | 1997-06-03 |
| 5600197 | Piezoelectric/electrostrictive film element and method of producing the same | Yukihisa Takeuchi | 1997-02-04 |