Takeshi Baba
61Patents
18h-index
85Co-inventors
87Inventor score
Filing activity: Feb 5, 1973 → Dec 2, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4714326A | Method and element for optical modulation | Physics | 87 | Expired |
| US4783155A | Optical device with variably shaped optical surface and a method for varying the focal length | Physics | 78 | Expired |
| US4985186A | Process for producing optical element | Emerging Cross-Sectional Technologies | 70 | Expired |
| US6253248A | Information processing apparatus and method | Electricity | 59 | Expired |
| US4802746A | Variable-focus optical element and focus detecting device utilizing the same | Physics | 49 | Expired |
| US4872058A | Automatic focusing device | Electricity | 47 | Expired |
| US4872743A | Varifocal optical element | Electricity | 45 | Expired |
| US4729641A | Functional optical element having a non-flat planar interface with variable-index medium | Physics | 38 | Expired |
| US4593953A | Apparatus for covering disc wheel for motor vehicle | Performing Operations; Transporting | 34 | Expired |
| USD786448S1 | Container for cell observation | General | 31 | Active |
| US4783153A | Variable-focus optical device | Physics | 28 | Expired |
| US4783141A | Array lens | Performing Operations; Transporting | 27 | Expired |
| US5396336A | In-focus detecting device | Electricity | 24 | Expired |
| US6466968B2 | Information processing system capable of file transmission and information processing apparatus in the system | Electricity | 23 | Expired |
| US4712882A | Variable focal length lens | Physics | 22 | Expired |
| US6367811B1 | Rotation shaft seal | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US5575544A | Vehicle-mounted equipment anti-theft mechanism | Electricity | 19 | Expired |
| US4848879A | Light modulating device | Physics | 18 | Expired |
| US4523801A | Scanning optical system subjected to a moisture proof treatment | Physics | 17 | Expired |
| US4781445A | Optical device having positionally changeable optical surfaces and a method of varying an image forming position | Physics | 16 | Expired |
| USD787699S1 | Container for cell observation | General | 12 | Active |
| US4674843A | Gradient index lens | Physics | 10 | Expired |
| US4647159A | Gradient index type single lens | Physics | 10 | Expired |
| US4770506A | Gradient index single lens | Physics | 9 | Expired |
| USD697032S1 | Relay bus bar with built-in current sensor | General | 9 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.