Hisao Takeuchi
35Patents
10h-index
53Co-inventors
78Inventor score
Filing activity: Nov 4, 1985 → Aug 5, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6082900A | Dynamic pressure pneumatic bearing structure and method of manufacturing the same | Mechanical Engineering; Lighting; Heating | 39 | Expired |
| US5904993A | Joint body of aluminum and silicon nitride and method of preparing the same | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4886709A | Member for semiconductor apparatus | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5034357A | Heat-conductive aluminum nitride sintered body and method of manufacturing the same | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5010388A | Connection structure between components for semiconductor apparatus | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5085923A | Heat-conductive aluminum nitride sintered body and method of manufacturing the same | Emerging Cross-Sectional Technologies | 17 | Expired |
| US6502989B1 | Dynamic pressure bearing and spindle motor with the bearing | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US6417590B1 | Spindle motor | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US5618765A | Ceramics porous body and method of preparing the same | Performing Operations; Transporting | 10 | Expired |
| US5756411A | Sintered body of silicon nitride and method of producing the same | Chemistry; Metallurgy | 10 | Expired |
| US5036026A | Sintered body of aluminum nitride and method for producing the same | Chemistry; Metallurgy | 8 | Expired |
| US6702464B1 | Dynamic pressure bearing with improved starting characteristics | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US6749339B1 | Hydrodynamic bearing assembly and spindle motor having the same | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US5944427A | Dynamic pressure gas bearing structure and method of manufacturing the same as well as method of using the same | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US5695700A | Method of preparing a ceramic porous body | Performing Operations; Transporting | 6 | Expired |
| US5770322A | Ceramic sliding component | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4659508A | Electrically-conductive sintered compact of silicon nitride machinable by electrical discharge machining and process of producing the same | Chemistry; Metallurgy | 6 | Expired |
| US6918955B2 | Ink-jet recording liquid and process for producing the same | Chemistry; Metallurgy | 5 | Expired |
| US8183057B2 | Biomaterial construct, its producing method, biomaterial support, target material purifying method, affinity chromatography container, separation chip, analyzing method and analyzing separator for target material, biomaterial complex, and its support, sensor chip, solid support with biomaterial fixed thereon | Physics | 5 | Active |
| US6608415B2 | Spindle motor | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US6123460A | Hydrodynamic gas bearing structure and optical deflection scanner comprising the same | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US5783314A | Sliding component and production method thereof | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4794798A | Device for measuring Young's modulus and internal friction of specimen | Physics | 3 | Expired |
| US7033078B2 | Hydrodynamic bearing assembly and spindle motor having the same | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US8293011B2 | Method for growing group III nitride semiconductor crystal and growing device for group III nitride semiconductor crystal | Emerging Cross-Sectional Technologies | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.