HITACH, LTD.
16Patents
3Active
16Granted
39Portfolio score
Filing activity: Dec 22, 1982 → Mar 28, 2014
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5062012A | Linear access mechanism with driving force reaction cancelling device and magnetic disk apparatus using the same | Physics | 37 | Expired |
| US4952058A | Method and apparatus for detecting abnormal patterns | Physics | 36 | Expired |
| US5854616A | Active matrix type liquid crystal display system and driving method therefor | Physics | 29 | Expired |
| US5933297A | Magnetic storage/read system with read head including magnetoresistive element | Physics | 25 | Expired |
| US6249325A | Having a pattern for improving voltage difference between different pixel electrodes in which semiconductive or signal line portion is larger for a more remote pixel | Physics | 23 | Expired |
| US6023520A | Method and apparatus for detecting and displaying a representative image of a shot of short duration in a moving image | Electricity | 18 | Expired |
| US4554237A | Photosensitive resin composition and method for forming fine patterns with said composition | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5107498A | Automatic testing method for information processing devices | Physics | 10 | Expired |
| US6487100B2 | Semiconductor integrated circuit device and contactless electronic device | Physics | 9 | Expired |
| US6537832B2 | Measuring apparatus and film formation method | Physics | 8 | Expired |
| US6512829B1 | Key distribution method and system in secure broadcast communication | Electricity | 6 | Expired |
| US6472808B1 | Color cathode ray tube having electrostatic quadrupole lenses | Electricity | 5 | Expired |
| US9496516B2 | Organic light-emitting element, light source device and method of manufacturing organic light-emitting element | Electricity | 4 | Active |
| US9317312B2 | Computer and memory management method | Emerging Cross-Sectional Technologies | 2 | Active |
| US6284414A | Mask for manufacturing semiconductor device and method of manufacture thereof | Emerging Cross-Sectional Technologies | 2 | Expired |
| US9911916B2 | Method for vapor-phase growth of phase-change thin film, and device for vapor-phase growth of phase-change thin film | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.