Hiroshi Maeno
24Patents
11h-index
23Co-inventors
71Inventor score
Filing activity: Feb 25, 1985 → Nov 2, 1995
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4803504A | Waterproof camera | Physics | 82 | Expired |
| US5136324A | Camera apparatus for adjusting the optical system at different speeds | Physics | 48 | Expired |
| US5084724A | Camera | Physics | 44 | Expired |
| US5073178A | Ceramic filter for a dust-containing gas and method for its production | Emerging Cross-Sectional Technologies | 27 | Expired |
| US5198006A | Ceramic filter for a dust-containing gas and method for its production | Emerging Cross-Sectional Technologies | 27 | Expired |
| US5348568A | Filtering method of flue gas of a boiler and a filter apparatus for hot gas | Performing Operations; Transporting | 19 | Expired |
| US4653883A | Watertight camera | Physics | 18 | Expired |
| US4982218A | Camera | Physics | 17 | Expired |
| US4870439A | Focal length varying device for camera | Physics | 16 | Expired |
| US4935042A | Exhaust gas treating device | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4666274A | Waterproof camera | Physics | 13 | Expired |
| US4811039A | Camera | Physics | 10 | Expired |
| US5594178A | Strength evaluation method for brittle material pieces | Physics | 9 | Expired |
| US4867769A | Supporting structure for ceramic tubes in a gas system | Performing Operations; Transporting | 8 | Expired |
| US4714333A | Water-proof window structure of water-proof camera | Physics | 8 | Expired |
| US4668061A | Buckle for a water-proof camera | Physics | 8 | Expired |
| US5002372A | Optical system for amphibious camera and a moving device using the same | Physics | 8 | Expired |
| US4758855A | Shaft holding structure for holding shaft in article of resinous material | Physics | 7 | Expired |
| USD294034S | Accessory mount for cameras | General | 5 | Expired |
| US4643549A | Data imprinting device for a camera | Physics | 3 | Expired |
| US5138352A | Camera | Physics | 3 | Expired |
| US4980712A | Film take-up spool for camera | Physics | 2 | Expired |
| US5361728A | Pressurized fluidized bed combustion boiler system | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US4731624A | Data imprinting device for a camera | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.