Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4797939 | Pattern masking method and an apparatus therefor | Tetsuo Hoki, Tetsuo Sano, Ryuji Kitakado, Yoshinori Sezaki, Tomiji Hotta | 1989-01-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4797939 | Pattern masking method and an apparatus therefor | Tetsuo Hoki, Tetsuo Sano, Ryuji Kitakado, Yoshinori Sezaki, Tomiji Hotta | 1989-01-10 |