ASAHI GLASS CO., LTD.
2,621Patents
1,093Active
2,621Granted
55Portfolio score
Filing activity: Oct 8, 1971 → Jul 20, 2020 · 520 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8967608B2 | Glass substrate-holding tool and method for producing an EUV mask blank by employing the same | Emerging Cross-Sectional Technologies | 504 | Active |
| US8192901B2 | Glass substrate-holding tool | Electricity | 503 | Active |
| US5181779A | Thermocouple temperature sensor and a method of measuring the temperature of molten iron | Physics | 479 | Expired |
| US5306651A | Process for preparing a polycrystalline semiconductor thin film transistor | Emerging Cross-Sectional Technologies | 289 | Expired |
| US5158638A | Method of making window glass with a gasket | Performing Operations; Transporting | 257 | Expired |
| US4368223A | Process for preparing nickel layer | Chemistry; Metallurgy | 254 | Expired |
| US4702566A | Electrochromic display device | Physics | 223 | Expired |
| US4338000A | Electrochromic light controlling panel | Physics | 220 | Expired |
| US4761061A | Method for fabrication of electrochromic device and the same fabricated by the method | Physics | 216 | Expired |
| US4671619A | Electro-optic device | Physics | 202 | Expired |
| US6473049B2 | Antenna device | Electricity | 184 | Expired |
| US4435048A | Electro-optical device and electro-optical light controlling device | Physics | 179 | Expired |
| US5150232A | Active matrix liquid crystal display element and projection type active matrix liquid crystal display device | Physics | 172 | Expired |
| US4897457A | Novel fluorine-containing cyclic polymer | Chemistry; Metallurgy | 161 | Expired |
| US5386306A | Active matrix liquid crystal display element and projection type active matrix liquid crystal display device | Physics | 156 | Expired |
| US5871843A | Laminate and process for its production | Emerging Cross-Sectional Technologies | 156 | Expired |
| US4687707A | Low reflectance transparent material having antisoiling properties | Emerging Cross-Sectional Technologies | 146 | Expired |
| US7505188B2 | Light control device and method for producing the same | Physics | 143 | Active |
| US5587816A | LCD device including an illumination device having a polarized light separating sheet between a light guide and the display | Physics | 141 | Expired |
| US4862328A | Electric double layer capacitor | Emerging Cross-Sectional Technologies | 138 | Expired |
| US5650834A | Active-matrix device having silicide thin film resistor disposed between an input terminal and a short-circuit ring | Physics | 125 | Expired |
| US6545778B2 | Holographic display device and method for producing a transmission diffusion hologram suitable for it | Physics | 116 | Expired |
| US6664503B1 | Method for manufacturing a magnetic disk | Physics | 105 | Expired |
| US5849055A | Process for producing inorganic microspheres | Chemistry; Metallurgy | 96 | Expired |
| US4730260A | Method for eyewear simulation and a device for its practice | Electricity | 92 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.