Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814821 | Image-forming device | Noboru Sawayama, Hideo Yuh, Masayuki Takashima, Tadayuki Sekiya | 1989-03-21 |
SK
Shinichi Kamiyama
Overall (1989): #57,687 of 140,708Top 45%
1
Patents 1989