Masami Murai
55Patents
16h-index
44Co-inventors
84Inventor score
Filing activity: Dec 26, 1984 → Apr 2, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5815652A | Computer management system | Electricity | 213 | Expired |
| US6031201A | Laser machining apparatus with rotatable phase grating | Physics | 110 | Expired |
| US6140746A | Piezoelectric thin film, method for producing the same, and ink jet recording head using the thin film | Electricity | 73 | Expired |
| US6635850B2 | Laser machining method for precision machining | Physics | 57 | Expired |
| US6044476A | Computer management system | Electricity | 54 | Expired |
| US6199180A | Computer management system | Electricity | 41 | Expired |
| US6013970A | Piezoelectric thin-film device process for manufacturing the same, and ink-jet recording head using the same | Electricity | 33 | Expired |
| US6103072A | Piezoelectric thin-film device, process for manufacturing the same, and ink-jet recording head using the same | Electricity | 30 | Expired |
| US6599757B1 | Method for manufacturing ferroelectric thin film device, ink jet recording head, and ink jet printer | Electricity | 27 | Expired |
| US4675814A | Method of switching operating systems for a data processing system | Physics | 21 | Expired |
| US5984458A | Piezoelectric thin-film element and ink-jet recording head using the same | Electricity | 21 | Expired |
| US6494567B2 | Piezoelectric element and manufacturing method and manufacturing device thereof | Electricity | 20 | Expired |
| US6705708B2 | Piezoelectric thin-film element, ink-jet head using the same, and method for manufacture thereof | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6398349B1 | Piezoelectric device, ink-jet printing head, and method for manufacturing same, and printer | Electricity | 17 | Expired |
| US6158847A | Laminated ink-jet recording head, a process for production thereof and a printer equipped with the recording head | Emerging Cross-Sectional Technologies | 17 | Expired |
| US7089451B2 | Computer management system | Electricity | 16 | Expired |
| US6376799B1 | Laser machining apparatus with a rotatable phase grating | Physics | 15 | Expired |
| US6767085B2 | Method for manufacturing ferroelectric thin film device, ink jet recording head, and ink jet printer | Electricity | 13 | Expired |
| US6147438A | Piezoelectric film element and manufacturing method thereof, and ink jet recording head | Electricity | 12 | Expired |
| US6332254A | Process for producing a laminated ink-jet recording head | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7279823B2 | Piezoelectric actuator and liquid jet head | Electricity | 9 | Expired |
| US6758554B2 | Liquid jetting head, method of manufacturing the same, and liquid jetting apparatus incorporating the same | Emerging Cross-Sectional Technologies | 8 | Expired |
| US7083269B2 | Piezoelectric element, liquid jetting head, and method for manufacturing thereof | Performing Operations; Transporting | 6 | Expired |
| US7268472B2 | Piezoelectric device, liquid jetting head, ferroelectric device, electronic device and methods for manufacturing these devices | Electricity | 6 | Expired |
| US6767084B2 | Ink-jet recording head and ink-jet recording apparatus | Performing Operations; Transporting | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.