Takashi Sugawara
49Patents
17h-index
75Co-inventors
84Inventor score
Filing activity: Dec 11, 1987 → Aug 4, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6249740A | Communications navigation system, and navigation base apparatus and vehicle navigation apparatus both used in the navigation system | Physics | 293 | Expired |
| US5681265A | Cylindrical anal retractor | Human Necessities | 237 | Expired |
| US6314369A | Communications navigation system, and navigation base apparatus and navigation apparatus both used in the navigation system | Physics | 150 | Expired |
| US6263276A | Communicatory navigation system | Physics | 84 | Expired |
| US6484093B1 | Communication route guidance system | Physics | 81 | Expired |
| US6202024A | Communicatory navigation system | Physics | 69 | Expired |
| US5348873A | Immobilization of an anti-thrombogenic substance with a photo-reactive azide and a photo-crosslinking material | Human Necessities | 64 | Expired |
| US6518916B1 | Object recognition apparatus | Physics | 59 | Expired |
| US6282492A | Navigation system and navigation apparatus used in the navigation system | Physics | 50 | Expired |
| USD651163S1 | Pneumatic tire | General | 38 | Expired |
| US6542816B1 | Communication navigation system | Physics | 37 | Expired |
| US6339831B1 | Automatic detecting unit for diagnosing a connection and identifying an external device, information processing apparatus, and external device | Physics | 32 | Expired |
| US6140954A | Radar device | Physics | 30 | Expired |
| US6427117B1 | Navigation method, navigation system, and information communications apparatus used in the navigation system | Physics | 28 | Expired |
| US6380884B1 | Radar apparatus | Physics | 25 | Expired |
| US6728822B1 | Bus bridge circuit, information processing system and cardbus controller | Physics | 17 | Expired |
| US6128263A | External storage device having an audio function, and information processing apparatus in which the storage device can be installed | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5963162A | Object detecting system | Physics | 14 | Expired |
| US7934072B2 | Solid state storage reclamation apparatus and method | Physics | 14 | Active |
| US5240747A | Process for modifying surfaces of materials | Chemistry; Metallurgy | 14 | Expired |
| US7813892B2 | Motion detection apparatus and motion detecting method | Physics | 12 | Expired |
| US6751741B1 | Computer power management apparatus and method for optimizing CPU throttling | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4934471A | Device for connecting working implement to tractor | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7409565B2 | Method, program and apparatus for power control through an electronic information device in a magnetic disk unit | Emerging Cross-Sectional Technologies | 6 | Active |
| US6778930B2 | System for reducing distortion of signals transmitted over a bus | Physics | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.