Hiroshi Hayakawa
74Patents
14h-index
126Co-inventors
87Inventor score
Filing activity: Nov 17, 1975 → Jul 29, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5144714A | Vacuum cleaner | Human Necessities | 112 | Expired |
| US6345411B1 | Vacuum cleaner | Emerging Cross-Sectional Technologies | 74 | Expired |
| US5475206A | Scanner assembly | Physics | 58 | Expired |
| US5695734A | Process for the separation of carbon nanotubes from graphite | Emerging Cross-Sectional Technologies | 46 | Expired |
| US5383409A | Corrugated board pallet | Performing Operations; Transporting | 41 | Expired |
| US5610752A | Optical reader with vibrating mirror | Physics | 40 | Expired |
| US4381656A | Automobile door assembly having a door locking device | Emerging Cross-Sectional Technologies | 37 | Expired |
| US6684451B2 | Vacuum cleaner | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4930213A | System for transferring vehicle body from a coating station to an assembly line and an overhead conveyor | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5764398A | Optical reader with vibrating mirror | Physics | 17 | Expired |
| US5293507A | Movable contact piece support structure of a seesaw switch | Electricity | 17 | Expired |
| US4960228A | Portable post-mix beverage dispenser unit | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5623134A | Switch with pivoting control member mounted on slider | Electricity | 14 | Expired |
| US6142647A | Darkroom illumination equipment | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5557080A | Switching device | Electricity | 14 | Expired |
| US6458204B1 | Method of producing high-quality silicon single crystals | Chemistry; Metallurgy | 13 | Expired |
| US5512717A | Plunger switch | Electricity | 12 | Expired |
| US5075519A | Windshield wiper switch | Electricity | 11 | Expired |
| US5424216A | No radical measuring method and apparatus | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6170789A | Appliance for supporting carriage of cylindrical article | Performing Operations; Transporting | 11 | Expired |
| US4527606A | Pneumatic radial tires for passenger cars having low rolling resistance and excellent slipping resistance | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5447820A | Silver halide photographic light-sensitive material | Physics | 9 | Expired |
| US4986448A | Beverage dispensing unit with a control unit for controlling dispensation of a beverage | Performing Operations; Transporting | 9 | Expired |
| US4806867A | Magnetic resonance imaging system | Physics | 8 | Expired |
| US5905237A | Vehicular knob switch apparatus | Performing Operations; Transporting | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.