Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883777 | Sealing glass composition with filler containing Fe and W partially substituted for Ti in PbTiO.sub.3 filler | — | 1989-11-28 |
| 4811050 | Apparatus for the forming of images with a cleaning device for a corona wire | Toru Tanjo, Takahiro Wakikaido, Masaru Hatano, Nobuyuki Hirata, Kazuya Kamidaira | 1989-03-07 |