Haruhisa Maruyama
33Patents
11h-index
31Co-inventors
75Inventor score
Filing activity: Dec 7, 1988 → Mar 8, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6419007B1 | Heat sink-equipped cooling apparatus | Electricity | 39 | Expired |
| US5827593A | Disc substrate used for an optical disc and a molding die for molding the same | Emerging Cross-Sectional Technologies | 29 | Expired |
| USD501450S1 | Electronic component cooling apparatus | General | 29 | Expired |
| US5759332A | Process of reproducing optical discs and optical discs produced by the same | Performing Operations; Transporting | 27 | Expired |
| US6411510B1 | Heat sink-equipped cooling apparatus | Electricity | 22 | Expired |
| US5820961A | Laminated optical discs | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6480383B2 | Electronic component cooling apparatus | Electricity | 17 | Expired |
| US6927979B2 | Heat-emitting element cooling apparatus | Electricity | 14 | Expired |
| US5006058A | Apparatus for injection molding information recording disks | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6136133A | Method of producing optical disc of bonded type | Physics | 13 | Expired |
| USD516526S1 | Electronic component cooling apparatus | General | 11 | Expired |
| US6621699B2 | Electronic component cooling apparatus | Electricity | 10 | Expired |
| USD637276S1 | Fan | General | 10 | Expired |
| US5824385A | Optical disc and method for manufacturing the same | Emerging Cross-Sectional Technologies | 9 | Expired |
| USD511326S1 | Electronic component cooling apparatus | General | 9 | Expired |
| USD509483S1 | Heat sink | General | 8 | Expired |
| US6312547A | Method for manufacturing optical disks | Performing Operations; Transporting | 7 | Expired |
| US6132545A | Method of producing an optical video disc | Physics | 7 | Expired |
| USD541229S1 | Electronic component cooling apparatus | General | 6 | Expired |
| US9033680B2 | Electric fan | Electricity | 5 | Active |
| US7411327B2 | Heat-emitting element cooling apparatus | Electricity | 5 | Expired |
| US7331756B2 | Axial-flow fan unit and heat-emitting element cooling apparatus | Electricity | 4 | Expired |
| US8164008B2 | Electrical apparatus | Electricity | 3 | Active |
| US7170746B2 | Heat-emitting element cooling apparatus | Electricity | 3 | Expired |
| USD537418S1 | Heat sink | General | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.