Hitchi, Ltd.
10Patents
1Active
10Granted
36Portfolio score
Filing activity: Sep 18, 1995 → May 23, 2008 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5855553A | Remote surgery support system and method thereof | Human Necessities | 408 | Expired |
| US6496695B1 | Resource-saving event-driven monitoring system and method | Human Necessities | 86 | Expired |
| US5801472A | Micro-fabricated device with integrated electrostatic actuator | Emerging Cross-Sectional Technologies | 59 | Expired |
| US5708827A | Spread sheet calculation method and apparatus by extracting an area to be updated by a calculation formula | Physics | 41 | Expired |
| USD405070S | IC card reader and writer | General | 26 | Expired |
| US5929519A | Semiconductor module including switching device chips and diode chips | Emerging Cross-Sectional Technologies | 24 | Expired |
| US6636813B1 | Service life management system for high-temperature part of gas turbine | Physics | 23 | Expired |
| US8628250B2 | Support device for supporting propeller shaft and propeller shaft itself | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US6823288B2 | Service system for air conditioner and server system for monitoring center | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US6800888B2 | Semiconductor integrated circuitry and method for manufacturing the circuitry | Emerging Cross-Sectional Technologies | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.