Hiroyuki Harada
175Patents
20h-index
218Co-inventors
93Inventor score
Filing activity: Jan 18, 1977 → Jul 19, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5617451A | Direct-conversion receiver for digital-modulation signal with signal strength detection | Electricity | 116 | Expired |
| US5336004A | Dot printer | Performing Operations; Transporting | 101 | Expired |
| US5399184A | Method for fabricating gas diffusion electrode assembly for fuel cells | Emerging Cross-Sectional Technologies | 74 | Expired |
| US5614861A | N-phase modulated signal demodulation system with carrier reproduction | Electricity | 66 | Expired |
| US5690797A | Hydrogen and oxygen gas generating system | Emerging Cross-Sectional Technologies | 66 | Expired |
| US9131897B2 | Catheter for measuring electric potential | Human Necessities | 62 | Active |
| US5159004A | Thermoplastic resin composition | Emerging Cross-Sectional Technologies | 61 | Expired |
| US5624991A | Polypropylene resin composition | Chemistry; Metallurgy | 58 | Expired |
| US5071911A | Thermoplastic resin composition and process for producing the same | Emerging Cross-Sectional Technologies | 53 | Expired |
| US4605685A | Method for preparation of graft polymeric membranes | Chemistry; Metallurgy | 49 | Expired |
| US6108976A | Feeder arrangement of sliding door | Fixed Constructions | 33 | Expired |
| US5293408A | FSK data receiving system | Electricity | 32 | Expired |
| US5783051A | Apparatus for producing hydrogen and oxygen | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5484512A | Methods and apparatuses for producing high purity oxygen and hydrogen | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4939867A | Power supplying system for self-driving closure device | Fixed Constructions | 25 | Expired |
| US5796799A | Control apparatus for oxygen concentration of water in atomic reactor | Emerging Cross-Sectional Technologies | 24 | Expired |
| USD322278S | Printer for a computer | General | 24 | Expired |
| US6563938B1 | Sheet-through type document reader | Electricity | 24 | Expired |
| US7048839B2 | System and method for generating high pressure hydrogen | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4983359A | Apparatus for measuring lymphocyte subclasses | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5894428A | Recursive digital filter | Electricity | 20 | Expired |
| US4769284A | Polypropylene multi-layer film | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5412462A | Automatic document conveying apparatus | Physics | 17 | Expired |
| US5414736A | FSK data receiving system | Electricity | 17 | Expired |
| US4384941A | Process for electrolyzing water | Emerging Cross-Sectional Technologies | 16 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.