Chikara Aoshima
76Patents
17h-index
29Co-inventors
84Inventor score
Filing activity: Feb 25, 1985 → Jun 27, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5831356A | Compact cylindrical stepping motor and advancing device | Electricity | 48 | Expired |
| US5945753A | Motor | Electricity | 43 | Expired |
| US5384506A | Stepper motor | Electricity | 39 | Expired |
| US6800970B2 | Motor and optical apparatus using the same | Electricity | 34 | Expired |
| US5097278A | Camera using a film with a magnetic memory | Physics | 34 | Expired |
| US6081053A | Motor | Electricity | 32 | Expired |
| US6172440A | Motor | Electricity | 30 | Expired |
| US4731629A | Control device for exposure-with-zooming photography | Physics | 29 | Expired |
| US5245372A | Camera using a film with a magnetic memory portion with a two-speed film transporting feature | Physics | 27 | Expired |
| US6157107A | Motor with magnetic stator poles inside and outside the rotor magnet | Electricity | 24 | Expired |
| US6255749A | Motor | Electricity | 24 | Expired |
| US6411003B1 | Motor | Electricity | 23 | Expired |
| US5925945A | Compact motor with enhanced workability | Electricity | 21 | Expired |
| US6591066B2 | Motor and photographing apparatus | Physics | 19 | Expired |
| US5973425A | Motor | Electricity | 19 | Expired |
| US5172151A | Image pickup apparatus | Electricity | 18 | Expired |
| US5353078A | Camera having a magnetic recording device | Physics | 18 | Expired |
| US5969453A | Motor | Electricity | 17 | Expired |
| US6710563B2 | Driving device, light amount controller and shutter | Physics | 16 | Expired |
| US6046517A | Electric motor | Electricity | 15 | Expired |
| US6559569B2 | Motor device | Electricity | 15 | Expired |
| US5136318A | Camera using film having magnetic storage part | Physics | 14 | Expired |
| US6465916B2 | Motor | Electricity | 14 | Expired |
| US6844643B2 | Motor device | Electricity | 12 | Expired |
| US6631014B1 | Image reading apparatus | Electricity | 12 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.