Shigeo Maruyama
11Patents
9h-index
27Co-inventors
72Inventor score
Filing activity: Sep 6, 1974 → Dec 31, 1996
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5116114A | Ophthalmologic apparatus | Human Necessities | 56 | Expired |
| US4293198A | Eye refractometer | Human Necessities | 52 | Expired |
| US4372655A | Automatic eye-refractometer | Human Necessities | 49 | Expired |
| US4014495A | Automatic welding apparatus | Physics | 43 | Expired |
| US4421391A | Auto eye-refractometer | Human Necessities | 41 | Expired |
| US4376573A | Apparatus for measuring the refractive power of the eye | Human Necessities | 37 | Expired |
| US5056522A | Supersonic ophthalmic measuring apparatus | Human Necessities | 35 | Expired |
| US4233491A | Method and apparatus for controlling increment type position control apparatus | Performing Operations; Transporting | 15 | Expired |
| US4179602A | Method and system of velocity control for automatic welding apparatus | Performing Operations; Transporting | 9 | Expired |
| US5896363A | Tray loading device of a CD player | Physics | 0 | Expired |
| US5650985A | Apparatus for locking a movable member of a CD player | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.