Masahiro Kikuchi
50Patents
11h-index
118Co-inventors
81Inventor score
Filing activity: Mar 29, 1977 → Aug 27, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4289400A | Apparatus for measuring a gradient of a surface | Physics | 107 | Expired |
| USD587662S1 | Semiconductor device | General | 82 | Expired |
| US5546572A | Method for retrieving database of image information | Emerging Cross-Sectional Technologies | 48 | Expired |
| US5098907A | Powdery pharmaceutical composition containing benzoyl urea, a dispersant and silicic acid | Human Necessities | 41 | Expired |
| US4983605A | Pharmaceutical composition | Human Necessities | 34 | Expired |
| USD699693S1 | Semiconductor device | General | 32 | Active |
| US5613236A | Clip holder for a portable receiver | Human Necessities | 22 | Expired |
| US5491171A | Pharmaceutical preparation containing prostaglandin compound for rectal or vaginal administration | Human Necessities | 16 | Expired |
| US6777881B2 | Power supply apparatus for generating plasma | Electricity | 15 | Expired |
| US4904668A | Benzoyl urea compound | Chemistry; Metallurgy | 15 | Expired |
| US4310912A | Servo system for recording and/or reproducing apparatus using a rotatable recording carrier | Physics | 11 | Expired |
| US5993863A | Alimentative infusion liquids for administration through peripheral vein | Human Necessities | 9 | Expired |
| US4450379A | Cathode ray tube | Electricity | 6 | Expired |
| US5839404A | Intake system in engine | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US6102012A | Air heater for air cleaner | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4568852A | Cathode ray tube with liquid coolant and reduced X-ray emission | Electricity | 5 | Expired |
| US6028475A | Method and apparatus for demodulating multi-level QAM signal | Electricity | 4 | Expired |
| US4763047A | Electron gun | Electricity | 4 | Expired |
| US4649318A | Electron gun with low spherical aberration | Electricity | 3 | Expired |
| US4634918A | Cathode ray tube apparatus with liquid cooled front panel | Electricity | 3 | Expired |
| US6197137A | Method of preventing adhesion of aquatic organisms in structures in water | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7501896B2 | High frequency power amplifier circuit, high frequency power amplifier electronic component and method thereof | Electricity | 2 | Active |
| US7245184B2 | High frequency power amplifier circuit, high frequency power amplifier electronic component and method thereof | Electricity | 2 | Expired |
| US7361462B2 | Method for efficiently determining a DNA strand break | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4703223A | Electron gun for a color display apparatus | Electricity | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.