Seiko Instruments Inc.
2,934Patents
1,157Active
2,934Granted
54Portfolio score
Filing activity: Nov 29, 1974 → Nov 21, 2023 · 585 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5646432A | Semiconductor thin film formed on a supporting substrate | Electricity | 356 | Expired |
| US5124272A | Method of producing field effect transistor | Electricity | 325 | Expired |
| US5766131A | Pulse-wave measuring apparatus | Human Necessities | 239 | Expired |
| US6659978B1 | Portable dosing apparatus | Human Necessities | 233 | Expired |
| US6431762B1 | Optical connector adapter | Physics | 226 | Expired |
| US6151432A | Universal optical fiber connectors and basic plugs thereof | Physics | 221 | Expired |
| US7155685B2 | Optimizing designing apparatus of integrated circuit, optimizing designing method of integrated circuit, and storing medium in which program for carrying out optimizing designing method of integrated circuit is stored | Physics | 194 | Expired |
| US5587558A | Coordinate detecting apparatus having acceleration detectors | Physics | 193 | Expired |
| US4834831A | Method for growing single crystal thin films of element semiconductor | Chemistry; Metallurgy | 176 | Expired |
| US6107862A | Charge pump circuit | Electricity | 174 | Expired |
| US6270271A | Printer for portable information processor | Performing Operations; Transporting | 168 | Expired |
| US5395711A | Non-aqueous electrolyte secondary battery and its production method | Emerging Cross-Sectional Technologies | 166 | Expired |
| US7443152B2 | Boost DC-DC converter and semiconductor device having boost DC-DC converter | Electricity | 156 | Active |
| US6678629B2 | Portable altimeter and altitude computing method | Physics | 150 | Expired |
| US6761064B2 | Movement-detecting altimeter | Physics | 142 | Expired |
| US6275778A | Location-force target path creator | Physics | 133 | Expired |
| US6246362A | Portable GPS signal receiving apparatus | Human Necessities | 131 | Expired |
| US5905460A | Wrist watch type GPS receiver | Physics | 129 | Expired |
| US6229188A | MOS field effect transistor and its manufacturing method | Electricity | 128 | Expired |
| US6485449B2 | Pressure-variable valve device and set-pressure adjusting device for the valve device | Emerging Cross-Sectional Technologies | 127 | Expired |
| US5637187A | Light valve device making | Physics | 124 | Expired |
| US6391019B1 | Valve apparatus and valve system using thereof | Emerging Cross-Sectional Technologies | 122 | Expired |
| US6067062A | Light valve device | Physics | 121 | Expired |
| US6022792A | Semiconductor dicing and assembling method | Electricity | 120 | Expired |
| US6702249B2 | Pressure-variable valve device and set-pressure adjusting device for the valve device | Emerging Cross-Sectional Technologies | 118 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.