Takashi Morikawa
71Patents
23h-index
93Co-inventors
91Inventor score
Filing activity: Jul 12, 1974 → Mar 16, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5613108A | Electronic mail processing system and electronic mail processing method | Emerging Cross-Sectional Technologies | 184 | Expired |
| US5765170A | Electronic mail processing system and electronic mail processing method | Emerging Cross-Sectional Technologies | 127 | Expired |
| US7208236B2 | Magnetic recording medium with multi-portion carbon-based protection layer, and apparatus thereof | Emerging Cross-Sectional Technologies | 74 | Expired |
| US7220500B1 | Magnetic recording medium, and thermal stability measuring method and apparatus of magnetic recording medium | Physics | 73 | Expired |
| US7420886B2 | Magnetic recording medium, and thermal stability measuring method and apparatus of magnetic recording medium | Physics | 71 | Active |
| US6946191B2 | Magnetic recording medium | Emerging Cross-Sectional Technologies | 71 | Expired |
| US5389549A | Method for classifying leukocytes and a reagent used therefor | Emerging Cross-Sectional Technologies | 64 | Expired |
| US6078717A | Opical waveguide device | Physics | 59 | Expired |
| US5644416A | Light modulation device and method of light modulation using the same | Physics | 53 | Expired |
| US5084831A | Printer and printing method | Physics | 37 | Expired |
| US6385355B1 | Optical deflection element | Physics | 34 | Expired |
| US6307996A | Optical waveguide device and manufacturing method thereof | Physics | 33 | Expired |
| US5051925A | Printer for converting character codes into bit images | Physics | 33 | Expired |
| US9152005B2 | Particle dispersion for display, display medium, and display device | Physics | 30 | Active |
| US5618733A | Reagent for analyzing leucocytes | Emerging Cross-Sectional Technologies | 30 | Expired |
| US6470125B1 | Optical device, driving method of optical device and manufacture of optical device | Physics | 30 | Expired |
| US5671211A | Data recording medium | Physics | 28 | Expired |
| US4843405A | Method of controlling reproduction of image in bit-map controlled laser printer | Physics | 28 | Expired |
| US5413938A | Reagent for measuring immature leukocytes | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5150455A | Image data processor | Physics | 26 | Expired |
| US4272815A | Channel control system for controlling data transfer through a plurality of channels with priority assignment | Physics | 25 | Expired |
| US6525807B1 | Particle analyzing apparatus | Physics | 25 | Expired |
| US4965771A | Printer controller for connecting a printer to an information processor having a different protocol from that of a printer | Physics | 24 | Expired |
| US5136688A | Print data processing apparatus for an image forming apparatus | Physics | 23 | Expired |
| US7116273B2 | Microwave antenna and process for producing the same | Electricity | 21 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.