Makoto Otsuki
23Patents
7h-index
27Co-inventors
69Inventor score
Filing activity: Mar 3, 1995 → Feb 27, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7125447B2 | Oil-based ink composition for ink-jet recording | Chemistry; Metallurgy | 39 | Expired |
| US5514903A | Compound semiconductor single-crystalline substrate for liquid phase epitaxial growth | Electricity | 16 | Expired |
| US6502989B1 | Dynamic pressure bearing and spindle motor with the bearing | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US6686673B1 | Bearing structures, spindle motor, and hard disk drive | Physics | 14 | Expired |
| US6417590B1 | Spindle motor | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6200035A | Hydrodynamic gas bearing structure | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US6749339B1 | Hydrodynamic bearing assembly and spindle motor having the same | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US6702464B1 | Dynamic pressure bearing with improved starting characteristics | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US6608415B2 | Spindle motor | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US6307295A | Spindle motor and complex bearing assembly for use with the spindle motor | Electricity | 5 | Expired |
| US9476507B2 | Valve, pressure controlling apparatus, liquid ejecting apparatus, and method of opening and closure valve | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US5639299A | Method of making compound semiconductor single-crystalline substrate for liquid phase epitaxial growth | Electricity | 3 | Expired |
| US6771459B1 | Spindle motor and hard disc drive incorporating the same | Physics | 3 | Expired |
| US7033078B2 | Hydrodynamic bearing assembly and spindle motor having the same | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US6870289B1 | Dynamic-pressure bearing and spindle motor comprising the same | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US7360950B2 | Hydrodynamic bearing assembly | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US7897656B2 | Oil-based white ink for ink jet recording | Chemistry; Metallurgy | 1 | Active |
| US6552455B1 | Hydrodynamic bearing and spindle motor | Electricity | 1 | Expired |
| US8008368B2 | Oil-based ink composition for inkjet recording | Chemistry; Metallurgy | 0 | Active |
| US10752006B2 | Flow path structure body, liquid ejecting apparatus, and liquid ejecting method | Performing Operations; Transporting | 0 | Active |
| US10654266B2 | Liquid ejecting head and liquid ejecting apparatus | Electricity | 0 | Active |
| US9527301B2 | Liquid ejecting apparatus | Performing Operations; Transporting | 0 | Active |
| US12174194B2 | Tumor marker, and method for collecting and detecting tumor cell in distinction from contaminant cell | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.