Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874727 | Particulate lead titanate ceramic and composite material containing same | Kanji Ohya, Koji Ogura, Hirofumi Ozeki, Takashi Yamamoto | 1989-10-17 |
TT
Tsutomu Tsunooka
Overall (1989): #47,312 of 140,708Top 35%
1
Patents 1989