| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 4 | |
| #2 | Japan | 4 | |
| #3 | Belgium | 3 | |
| #4 | Germany | 2 | |
| #5 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Macromolecular chemistry and polymers |
| # | Technology | |
|---|---|---|
| #1 | Photosensitive materials | |
| #2 | Photomechanical semiconductor production | |
| #3 | Polysaccharides | |
| #4 | Processing photographic materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Yamamoto Kaneo | 7 |
| Publication | Filing date | Title |
|---|---|---|
| JPS56143428A | Heat developing diazo type copying material | |
| JPS56123535A | Heat developing diazo type copying material | |
| JPS5666844A | Manufacture of diazo photosensitive paper preventing ground discoloration of copy | |
| JPS5540471A | High speed binary black line diazo photosensitive paper |