OHARA INC.
198Patents
96Active
198Granted
51Portfolio score
Filing activity: Jun 18, 1985 → Jan 13, 2023 · 56 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6485622B1 | Lithium ion conductive glass-ceramics and electric cells and gas sensors using the same | Electricity | 116 | Expired |
| US6030909A | Lithium ion conductive glass-ceramics and electric cells and gas sensors using the same | Chemistry; Metallurgy | 110 | Expired |
| US5702995A | Lithium ion conductive glass-ceramics | Emerging Cross-Sectional Technologies | 104 | Expired |
| US6315881A | Electric cells and gas sensors using alkali ion conductive glass ceramic | Emerging Cross-Sectional Technologies | 93 | Expired |
| US7211532B2 | Alkali ion conductive glass-ceramics and electric cells and gas sensors using the same | Emerging Cross-Sectional Technologies | 82 | Expired |
| US6174827A | Glass-ceramic substrate for an information storage medium | Emerging Cross-Sectional Technologies | 78 | Expired |
| US6475677B1 | Glass-ceramic composite electrolyte and lithium secondary cell | Emerging Cross-Sectional Technologies | 74 | Expired |
| US8431287B2 | Lithium ion conductive solid electrolyte and method for producing the same | Chemistry; Metallurgy | 57 | Active |
| US5952256A | Optical glass having a negative anomalous dispersion | Chemistry; Metallurgy | 47 | Expired |
| US5866489A | Glass-ceramic substrate for a magnetic disk | Physics | 42 | Expired |
| US6387509B1 | Glass-ceramic substrate for a magnetic information recording medium | Physics | 42 | Expired |
| US6245411A | High rigidity glass-ceramic substrate for a magnetic information storage medium | Emerging Cross-Sectional Technologies | 40 | Expired |
| US5972816A | Glass-ceramic substrate for a magnetic information storage medium | Physics | 37 | Expired |
| US5336643A | Low expansion transparent crystallized glass-ceramic | Chemistry; Metallurgy | 35 | Expired |
| US6010644A | Long-lasting phosphor | Chemistry; Metallurgy | 32 | Expired |
| US6426311B1 | Glass-ceramics | Physics | 30 | Expired |
| US4732876A | Ophthalmic and optical glass | Emerging Cross-Sectional Technologies | 28 | Expired |
| US8114795B2 | Glass-ceramics and method for manufacturing the same | Emerging Cross-Sectional Technologies | 28 | Active |
| US6300264A | Luminous glass | Chemistry; Metallurgy | 27 | Expired |
| US6383645B1 | Glass-ceramic substrate for an information storage medium | Emerging Cross-Sectional Technologies | 27 | Expired |
| US6287663A | Glass-ceramic substrate for a magnetic information storage medium | Emerging Cross-Sectional Technologies | 26 | Expired |
| US6344423B2 | High rigidity glass-ceramic substrate for a magnetic information storage medium | Emerging Cross-Sectional Technologies | 23 | Expired |
| US6420286B1 | Glass-ceramics | Physics | 22 | Expired |
| US8043706B2 | Inorganic composition article | Electricity | 21 | Active |
| US4771020A | Optical glass | Emerging Cross-Sectional Technologies | 20 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.