Masashi Nakamura
169Patents
16h-index
223Co-inventors
89Inventor score
Filing activity: Feb 11, 1975 → Oct 6, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5776196A | Prosthesis for spanning a space formed upon removal of an intervertebral disk | Emerging Cross-Sectional Technologies | 398 | Expired |
| US5534031A | Prosthesis for spanning a space formed upon removal of an intervertebral disk | Emerging Cross-Sectional Technologies | 334 | Expired |
| US5482525A | Method of producing elliptic core type polarization-maintaining optical fiber | Emerging Cross-Sectional Technologies | 241 | Expired |
| US5021186A | Chloroisocyanuric acid composition having storage stability | Textiles; Paper | 78 | Expired |
| US6707169B2 | Engine generator, controller, starter apparatus, and remote control system for the engine generator | Emerging Cross-Sectional Technologies | 42 | Expired |
| US6281664A | Generator and generator apparatus | Electricity | 40 | Expired |
| US5229929A | Output peak current correction for PWM invertors | Electricity | 35 | Expired |
| US3979041A | Clamping mechanism for line-up of pipes | Performing Operations; Transporting | 32 | Expired |
| US6399697B1 | Process oil, process for producing the same and rubber composition | Chemistry; Metallurgy | 29 | Expired |
| US6779198B1 | Data processing apparatus, data processing method, and recording medium | Electricity | 29 | Expired |
| US5731687A | Generator assembly | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| US4650729A | Electric power source device | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5093611A | Output circuit for portable generators | Performing Operations; Transporting | 20 | Expired |
| US6603576B1 | Method and apparatus for superimposing additional information with image signal | Electricity | 20 | Expired |
| US5293469A | Apparatus for generating a graphic image having symbols whose centers and aligned with each other and whose sizes are adjusted to accord with each other | Physics | 17 | Expired |
| US6392619B1 | Data transfer device and liquid crystal display device | Physics | 16 | Expired |
| US6624528B2 | Engine operated generator | Electricity | 16 | Expired |
| US11616407B2 | Segment-core coupled body and method of manufacturing armature | Electricity | 16 | Active |
| US4687296A | Optical pickup | Physics | 16 | Expired |
| US7006069B2 | Display device and driving method thereof | Physics | 15 | Expired |
| US5239253A | Portable engine generator | Electricity | 15 | Expired |
| US5166870A | Pulse width-modulation control device for invertor devices | Electricity | 15 | Expired |
| US5444592A | Portable power unit | Electricity | 14 | Expired |
| US6740986B2 | Engine generator | Electricity | 13 | Expired |
| US5962939A | Outer-rotor type engine-operated generator | Electricity | 13 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.