Nobuki Itoh
22Patents
10h-index
14Co-inventors
68Inventor score
Filing activity: Apr 24, 1992 → Mar 10, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5635830A | Optical magnetic field sensor employing differently sized transmission lines | Physics | 131 | Expired |
| US5212446A | Magneto-optical element and magnetic field measurement apparatus | Electricity | 31 | Expired |
| US5699461A | Optical fiber sensors and method for making the same | Physics | 31 | Expired |
| US6814901B2 | Method of manufacturing microlens array and microlens array | Electricity | 22 | Expired |
| US5732167A | Optical fiber sensor for measuring a magnetic field or electric current and method for making the same | Physics | 20 | Expired |
| US5835257A | Magneto-optical element and optical magnetic field sensor using the same | Electricity | 16 | Expired |
| US7184617B2 | Portable device | Electricity | 14 | Expired |
| US6542647B2 | Optical signal transmission system and magneto-optical modulator designed to establish modulation over wide range for use in the same | Physics | 10 | Expired |
| US6947645B2 | Optical package substrate and optical device | Physics | 10 | Expired |
| US6904190B2 | Optical package substrate, optical device, optical module, and method for molding optical package substrate | Physics | 10 | Expired |
| US5691837A | Magneto-optical element and optical magnetic field sensor using the same | Electricity | 9 | Expired |
| US5485079A | Magneto-optical element and optical magnetic field sensor | Physics | 8 | Expired |
| US5742157A | Optical fiber magnetic-field sensor | Physics | 7 | Expired |
| US6215576A | Method for making a second-order nonlinear optical material, the material obtained by the method, and an optical modulation device comprising the material | Physics | 6 | Expired |
| US6008927A | Optical fiber modulator having an optical fiber having a poled portion serving as an electrooptic element and method for making same | Physics | 5 | Expired |
| US5861741A | Magneto-optical element | Physics | 4 | Expired |
| US6370288B1 | Optical magnetic field sensor probe | Physics | 4 | Expired |
| US6037770A | Optical magnetic field sensor probe having drum lenses | Physics | 4 | Expired |
| US6232763A | Magneto-optical element and optical magnetic field sensor | Physics | 2 | Expired |
| US6160396A | Optical magnetic field sensor probe | Physics | 2 | Expired |
| US6404190B1 | Optical magnetic field sensor probe | Physics | 2 | Expired |
| US6333809A | Magneto-optical element | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.