Takayuki Ishikawa
123Patents
13h-index
198Co-inventors
89Inventor score
Filing activity: Dec 2, 1987 → Aug 11, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5639990A | Solid printed substrate and electronic circuit package using the same | Emerging Cross-Sectional Technologies | 238 | Expired |
| US5266746A | Flexible printed circuit board having a metal substrate | Electricity | 117 | Expired |
| US5445869A | Composite flexible substrate | Emerging Cross-Sectional Technologies | 69 | Expired |
| US6010760A | Thermoplastic resin composition, injection molding method thereof, and injection molded article | Emerging Cross-Sectional Technologies | 41 | Expired |
| US6162999A | Multi-directional operating switch | Electricity | 30 | Expired |
| US4888127A | Liquid crystal polyester resin composition having excellent surface characteristics | Chemistry; Metallurgy | 30 | Expired |
| US6447913B1 | Thermoplastic polyester resin composition | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4889886A | Liquid crystal polyester composition | Chemistry; Metallurgy | 20 | Expired |
| US6350507B1 | Recording sheet for ink jet printer | Emerging Cross-Sectional Technologies | 20 | Expired |
| US7364770B2 | Coated fine particles and method for producing coated fine particles by reverse Diels-Alder reaction | Emerging Cross-Sectional Technologies | 20 | Expired |
| US7213301B2 | Folding device | Fixed Constructions | 17 | Expired |
| US5268414A | Liquid-crystal polyester resin composition which exhibits excellent high temperature stability | Chemistry; Metallurgy | 16 | Expired |
| US7775268B2 | Vehicle cooling system | Performing Operations; Transporting | 14 | Active |
| US6584789B2 | Vehicular cooling system and related method | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6670750B2 | Luminous EL sheet having a domed diaphragm and a switch employing the EL sheet | Electricity | 12 | Expired |
| US6960733B2 | Lighted switch sheet and lighted switch unit using the same | Electricity | 11 | Expired |
| US7090719B2 | Compound and method for synthesizing the same, ink, ink cartridge, recording unit, ink-jet recording apparatus, recording method, liquid composition, pattern generating method, article, environmental history-detecting method | Electricity | 11 | Expired |
| US6815021B1 | Recording medium for ink jet printers | Performing Operations; Transporting | 11 | Expired |
| US8710485B2 | Semiconductor device and method of manufacturing the same | Electricity | 11 | Active |
| US9623719B2 | Thermal management system for electric vehicle and its control method | Emerging Cross-Sectional Technologies | 10 | Active |
| US7543357B2 | Folding device and method of mounting the same | Electricity | 10 | Expired |
| US5501763A | Tape joining apparatus | Performing Operations; Transporting | 10 | Expired |
| US7008671B2 | Recorded matter, method of producing recorded matter, method for improving image fastness, image fastness-improving agent, image fastness improving kit, dispenser, and applicator | Performing Operations; Transporting | 9 | Expired |
| US6670565B2 | Illuminated button switch | Electricity | 9 | Expired |
| US9480437B2 | Movement compensation for superimposed fluoroscopy and radiography image | Human Necessities | 8 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.