Katsushi Ohta
22Patents
4h-index
20Co-inventors
63Inventor score
Filing activity: Jan 28, 1998 → Aug 31, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7818556B2 | Storage apparatus, control method, and control device which can be reliably started up when power is turned on even after there is an error during firmware update | Physics | 18 | Active |
| US6166845A | Electro-optic probe | Physics | 15 | Expired |
| US5943349A | Variable wavelength laser device | Electricity | 9 | Expired |
| US6429669B1 | Temperature-insensitive electro-optic probe | Physics | 6 | Expired |
| US6297651A | Electro-optic sampling probe having unit for adjusting quantity of light incident on electro-optic sampling optical system module | Physics | 4 | Expired |
| US6410906B1 | Electro-optic probe | Physics | 4 | Expired |
| US6445198B1 | Electro-optic sampling probe and a method for adjusting the same | Physics | 3 | Expired |
| US6337565B1 | Electro-optic probe | Physics | 3 | Expired |
| US6469528B2 | Electro-optic sampling probe and measuring method using the same | Physics | 3 | Expired |
| US6288531A | Probe for electro-optic sampling oscilloscope | Physics | 2 | Expired |
| US6507014B2 | Electro-optic probe | Physics | 2 | Expired |
| US6297650A | Electrooptic probe | Physics | 2 | Expired |
| US6407561B1 | Probe for electro-optic sampling oscilloscope | Physics | 2 | Expired |
| US6369562B2 | Electro-optical probe for oscilloscope measuring signal waveform | Physics | 2 | Expired |
| US6388454B1 | Electro-optic sampling prober | Physics | 1 | Expired |
| US6342783B1 | Electrooptic probe | Physics | 1 | Expired |
| US10684952B2 | Disk device and disk device control method | Emerging Cross-Sectional Technologies | 1 | Active |
| US5936982A | Variable wavelength laser light source | Electricity | 1 | Expired |
| US6403946B1 | Electro-optic sampling probe comprising photodiodes insulated from main frame of EOS optical system | Physics | 0 | Expired |
| US6348787B1 | Electrooptic probe | Physics | 0 | Expired |
| US6560003B2 | Light receiving module and light receiving method with reduced polarization dependence | Physics | 0 | Expired |
| US9053746B2 | Disk device and data recording method | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.