Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884501 | Pressure developing apparatus | Takeshi Izaki | 1989-12-05 |
| 4855280 | Developer sheet | Shuzo Ohara | 1989-08-08 |
HK
Hiroshi Kawahara
Goyo Paper Working Co.: 1 patents #1 of 2Top 50%
Overall (1989): #25,908 of 140,708Top 20%
2
Patents 1989