Kenji Ichikawa
63Patents
8h-index
109Co-inventors
81Inventor score
Filing activity: Apr 17, 1981 → Jun 30, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4444430A | Seat having pneumatic component | Emerging Cross-Sectional Technologies | 58 | Expired |
| US4751204A | Two-part gunning refractory composition | Chemistry; Metallurgy | 37 | Expired |
| US4673391A | Non-contact controlled micropump | Emerging Cross-Sectional Technologies | 32 | Expired |
| US6265107A | Binder for rechargeable battery with nonaqueous electrolyte and battery electrode depolarizing mix prepared using the same | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4880274A | Power reclining device of seat | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4623393A | Refractory gun mix | Chemistry; Metallurgy | 12 | Expired |
| US7282528B2 | Electrode additive | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7784765B2 | Mold, method for producing the same and magnetic recording medium | Physics | 11 | Active |
| US6611027B2 | Protection transistor with improved edge structure | Electricity | 8 | Expired |
| US7196378B2 | Electrostatic-protection dummy transistor structure | Electricity | 7 | Expired |
| US5234488A | Mold additive for continuous casting of steel | Performing Operations; Transporting | 6 | Expired |
| US4615953A | Lining structure composition for a tundish | Chemistry; Metallurgy | 4 | Expired |
| US4842647A | Mould additive for continuous casting of steel | Performing Operations; Transporting | 4 | Expired |
| US7958865B2 | Engine intake control system | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US4830992A | Carbon containing refractory | Chemistry; Metallurgy | 4 | Expired |
| US7850441B2 | Mold structure | Emerging Cross-Sectional Technologies | 4 | Active |
| US7012308B2 | Diode | Electricity | 3 | Expired |
| US7468403B2 | Method for purification of aqueous fluoropolymer emulsions, purified emulsions, and fluorine-containing finished articles | Chemistry; Metallurgy | 3 | Expired |
| US4789652A | Basic refractory composition | Chemistry; Metallurgy | 3 | Expired |
| US11148402B2 | Heat-resistant multilayer container and method for producing the same | Performing Operations; Transporting | 2 | Active |
| US10797558B2 | Electric retracting unit for electric retractable view device for vehicle | Electricity | 2 | Active |
| US11512155B2 | Production method for fluoropolymer, surfactant for polymerization, and use of surfactant | Chemistry; Metallurgy | 1 | Active |
| US10648095B2 | Production method of mold, manufacturing method of pattern sheet, production method of electroform, production method of mold using electroform, and original | Performing Operations; Transporting | 1 | Active |
| US7102197B2 | Semiconductor device including first and second transistor groups and semiconductor integrated circuit device | Electricity | 1 | Expired |
| US7888930B2 | Method for testing mold structure and magnetic recording medium | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.