Kabushiki Kaisha Daini Seikosha
352Patents
0Active
352Granted
41Portfolio score
Filing activity: Dec 14, 1973 → May 28, 1987
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4041954A | System for detecting information in an artificial cardiac pacemaker | Emerging Cross-Sectional Technologies | 152 | Expired |
| US4239040A | Capsule for medical use | Human Necessities | 137 | Expired |
| US4309627A | Detecting circuit for a power source voltage | Physics | 115 | Expired |
| US4680580A | Active matrix-addressed liquid-crystal display device | Physics | 106 | Expired |
| US4061929A | Circuit for obtaining DC voltage higher than power source voltage | Physics | 86 | Expired |
| US4350918A | Contour vibration mode piezoelectric resonator | Electricity | 49 | Expired |
| US4095405A | Electronic watch | Physics | 39 | Expired |
| US4511259A | Bar code input electronic timepiece | Physics | 38 | Expired |
| US4011001A | Liquid crystal device | Physics | 38 | Expired |
| US4566847A | Industrial robot | Performing Operations; Transporting | 36 | Expired |
| US4519930A | Electrochromic display device | Physics | 35 | Expired |
| US4017155A | Liquid crystal display device | Physics | 34 | Expired |
| US4551031A | Electronic clinical thermometer | Physics | 33 | Expired |
| US4395139A | Temperature detecting device | Physics | 32 | Expired |
| US4616340A | Non-volatile semiconductor memory | Electricity | 31 | Expired |
| US4088842A | Automatic coordinate determining device | Physics | 30 | Expired |
| US4178566A | Quartz crystal tuning fork vibrator for a crystal oscillator | Electricity | 29 | Expired |
| US4104865A | Electronic timepiece having an alarm device | Physics | 28 | Expired |
| US4044546A | Digital liquid crystal electronic timepiece with color coded display | Physics | 28 | Expired |
| US4128816A | Electronic circuit | Physics | 27 | Expired |
| US3984176A | Reflective plates for a liquid crystal display device | Physics | 27 | Expired |
| US4086752A | Electronic timepiece | Electricity | 26 | Expired |
| USD246577S | Watch case | General | 25 | Expired |
| US4045691A | Level shift circuit | Electricity | 24 | Expired |
| US4205369A | Voltage dropping circuit | Electricity | 24 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.