| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 9 | |
| #2 | United Kingdom | 9 | |
| #3 | United States | 9 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Machines | |
| #3 | Optics |
| # | Technology | |
|---|---|---|
| #1 | Treatment of glass | |
| #2 | Unspecified technologies | |
| #3 | Manufacturing processes | |
| #4 | Photomechanical semiconductor production |
| # | Name | Total Patents |
|---|---|---|
| #1 | Komorita Fujio | 9 |
| #2 | Nakahara Muneo | 5 |
| #3 | Nozawa Nobuhiro | 4 |
| #4 | Inoue Satoshi | 4 |
| #5 | Sato Bunryo | 3 |
| #6 | Yatsuda Hisao | 3 |
| #7 | Miyazaki Mutsumi | 3 |
| #8 | Fukuzaki Fukushichi | 2 |
| #9 | Ishii Yoshio | 2 |
| #10 | Fukuzawa Masaki | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US4501819A | Glass for a photomask | |
| US4249927A | Method and apparatus for manufacturing glass products by controlling free flow of low viscosity molten glass | |
| DE2756160A1 | Optical glass having high refractive and low dispersive properties - and free of poisonous thorium oxide | |
| DE2756161A1 | High-refractive, low-dispersive optical glass - comprising a boron, lanthanum, gadolinium, tungsten, zirconium and/or tantalum oxide system | |
| GB1562130A | Optical glass | |
| US4111707A | Optical glass | |
| GB1539490A | Optical glass | |
| US4120732A | Optical glass | |
| US3669696A | Optical glass |