Kabushiki Kaisha Shinsangyokaihatsu
44Patents
0Active
44Granted
39Portfolio score
Filing activity: Sep 5, 1984 → Nov 18, 1996
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5130709A | Navigation apparatus for vehicle | Physics | 297 | Expired |
| US4926336A | Route searching system of navigation apparatus | Physics | 225 | Expired |
| US4992947A | Vehicular navigation apparatus with help function | Physics | 160 | Expired |
| US5121326A | Display system in navigation apparatus | Physics | 147 | Expired |
| US4939662A | Navigation apparatus | Physics | 135 | Expired |
| US4954959A | Navigation system | Physics | 131 | Expired |
| US5654908A | Electronic diary with navigation destination output | Physics | 131 | Expired |
| US4937753A | Route end node series preparing system of navigation apparatus | Physics | 128 | Expired |
| US5231584A | Navigation apparatus with non-volatile memory for return to initial departure point | Physics | 124 | Expired |
| US5499909A | Pneumatically driven micro-pump | Human Necessities | 120 | Expired |
| US5168452A | Route exploration method of navigation apparatus | Physics | 118 | Expired |
| US5367555A | Medical data reporter | Physics | 102 | Expired |
| US4947123A | Battery state monitoring apparatus | Physics | 95 | Expired |
| US5191532A | Navigation apparatus | Physics | 95 | Expired |
| US5043902A | Vehicular navigation apparatus | Physics | 95 | Expired |
| US5115399A | Position input system for vehicular navigation apparatus | Physics | 81 | Expired |
| US5158529A | Pumping device for operating an intra-aortic balloon | Human Necessities | 80 | Expired |
| US4937751A | Navigation apparatus | Physics | 78 | Expired |
| US4926346A | Road image input system for vehicle control | Physics | 73 | Expired |
| US5067082A | Navigation apparatus | Physics | 62 | Expired |
| US4942735A | Apparatus for driving a medical appliance | Human Necessities | 58 | Expired |
| US4882696A | Navigation apparatus | Physics | 49 | Expired |
| US5103400A | Destination guidance method of vehicle navigating | Physics | 47 | Expired |
| US4937752A | An apparatus for correcting distance error in a navigation system | Physics | 43 | Expired |
| US5122961A | Navigation apparatus for vehicle | Physics | 41 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.