Osamu Murakami
51Patents
17h-index
93Co-inventors
87Inventor score
Filing activity: Sep 6, 1977 → Oct 19, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5339239A | Information collecting and/or service furnishing systems by which a user can request information from a central data base using a portable personal terminal and an access terminal | Physics | 321 | Expired |
| US5173840A | Molded IC card | Electricity | 95 | Expired |
| US4907546A | Air-cooled type cooling system for engine working machine assembly | Mechanical Engineering; Lighting; Heating | 75 | Expired |
| US5272374A | Production method for an IC card and its IC card | Electricity | 74 | Expired |
| US5416358A | IC card including frame with lateral hole for injecting encapsulating resin | Emerging Cross-Sectional Technologies | 67 | Expired |
| USD266855S | Electronic calculator with thermometer and timer | General | 60 | Expired |
| US4779905A | Forcedly air-cooled engine generator of vertical shaft type | Mechanical Engineering; Lighting; Heating | 49 | Expired |
| US6917396B2 | Light diffusion film, plane light source device and liquid crystal display apparatus for enhancing a constant luminance and diffusing a light | Chemistry; Metallurgy | 48 | Expired |
| US6529250B1 | Projector | Physics | 35 | Expired |
| US6778228B2 | Projection-type display apparatus | Physics | 31 | Expired |
| USD293904S | Power generator | General | 31 | Expired |
| US5498388A | Production method for an IC card | Electricity | 27 | Expired |
| US4995029A | Optical disk identifying method, manufacture of cartridge-enclosed optical disks, and optical disk cartridges | Physics | 24 | Expired |
| US4549835A | Docking apparatus for ships | Performing Operations; Transporting | 22 | Expired |
| US5992393A | V type diesel engine | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5192682A | Manufacturing method for thin semiconductor device assemblies | Emerging Cross-Sectional Technologies | 20 | Expired |
| USD301885S | Hand held electronic dialer | General | 20 | Expired |
| US4683519A | Connection structure | Electricity | 17 | Expired |
| US4899277A | Bore hole scanner with position detecting device and light polarizers | Fixed Constructions | 16 | Expired |
| US4767348A | External memory pack having an opening and a slideable shutter | Electricity | 14 | Expired |
| US5520863A | Method of making IC card | Emerging Cross-Sectional Technologies | 14 | Expired |
| USD269277S | Desk-top electronic calculator | General | 13 | Expired |
| US6772725B2 | Balance shaft, housing for balance shaft and engine oil return passage | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| USD282853S | Desk-top electronic calculator | General | 12 | Expired |
| US4108004A | Self-propelled pipe inspecting apparatus | Physics | 11 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.