Keisuke Harada
31Patents
3h-index
27Co-inventors
63Inventor score
Filing activity: Oct 30, 1997 → Nov 3, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6115435A | Soft decision method and receiver | Electricity | 33 | Expired |
| US10637008B2 | Display device | Emerging Cross-Sectional Technologies | 9 | Active |
| US8896940B2 | Objective optical system and endoscope using same | Physics | 3 | Active |
| US9468358B2 | Objective lens for an endoscope and endoscope | Physics | 3 | Active |
| US9678327B2 | Endoscope objective lens and endoscope | Physics | 3 | Active |
| US8301035B2 | Optical communication apparatus, control apparatus, and method for controlling optical output | Electricity | 2 | Active |
| US9709796B2 | Objective lens for endoscopes and endoscope | Physics | 2 | Active |
| US7136584B2 | Optical output power automatic attenuation circuit for optical communication apparatus | Electricity | 1 | Expired |
| US9442283B2 | Endoscopic objective lens and endoscope | Human Necessities | 1 | Active |
| US8902515B2 | Objective optical system and endoscope using same | Physics | 1 | Active |
| US10446791B2 | Display device | Electricity | 1 | Active |
| US10374701B2 | Optical signal-to-noise ratio measuring device and optical signal-to-noise ratio measuring method | Electricity | 1 | Active |
| US9703089B2 | Objective lens for endoscopes and endoscope | Physics | 1 | Active |
| US10310239B2 | Imaging lens and optical apparatus | Physics | 1 | Active |
| US7728500B2 | Electrodeless discharge lamp | Electricity | 1 | Active |
| US10861880B2 | Electronic device and manufacturing method therefor | Electricity | 1 | Active |
| US9063340B2 | Objective optical system and endoscope using same | Physics | 1 | Active |
| US8148884B2 | Electrodeless discharge lamp | Electricity | 0 | Active |
| US11402621B2 | Objective lens for endoscope and endoscope | Physics | 0 | Active |
| US10003406B2 | Optical level control apparatus and optical reception apparatus | Electricity | 0 | Active |
| US7492098B2 | Coil assembly body structure for electrodeless discharge lamp | Electricity | 0 | Expired |
| US9019593B2 | Optical amplification apparatus | Electricity | 0 | Active |
| US7884546B2 | Electrodeless discharge lamp apparatus and lighting fixture with the electrodeless discharge lamp apparatus | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11906725B2 | Illumination lens, illumination optical system, and endoscope | Physics | 0 | Active |
| US12055702B2 | Objective lens for endoscope and endoscope | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.