Daisuke Ishiko
15Patents
8h-index
8Co-inventors
61Inventor score
Filing activity: Apr 20, 1989 → Oct 26, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5699461A | Optical fiber sensors and method for making the same | Physics | 31 | Expired |
| US4999571A | Current and/or voltage detector for a distribution system | Physics | 23 | 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 |
| US5075546A | Magnetic field measurement apparatus | Physics | 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 |
| US6057678A | Optical sensor apparatus and signal processing circuit used therein including initialization and measuring modes | Physics | 9 | Expired |
| US5691837A | Magneto-optical element and optical magnetic field sensor using the same | Electricity | 9 | 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 |
| US6037770A | Optical magnetic field sensor probe having drum lenses | Physics | 4 | Expired |
| US6370288B1 | Optical magnetic field sensor probe | Physics | 4 | Expired |
| US6404190B1 | Optical magnetic field sensor probe | Physics | 2 | Expired |
| US6160396A | 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.