Yuichi Ishikawa
79Patents
14h-index
95Co-inventors
87Inventor score
Filing activity: Jul 7, 1976 → May 27, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7840699B2 | Name resolution server and packet transfer device | Electricity | 65 | Active |
| US7286535B2 | Device for flow classifying and packet forwarding device with flow classify function | Electricity | 41 | Expired |
| US4896357A | Industrial playback robot having a teaching mode in which teaching data are given by speech | Physics | 36 | Expired |
| US6331843A | Display apparatus capable of adjusting the number of subframes to brightness | Physics | 33 | Expired |
| US6388678B1 | Plasma display panel drive pulse controller | Physics | 30 | Expired |
| US5414356A | Fluxmeter including squid and pickup coil with flux guiding core and method for sensing degree of deterioration of an object | Physics | 24 | Expired |
| US7012890B2 | Packet forwarding apparatus with packet controlling functions | Electricity | 24 | Expired |
| US6414657B1 | Detector for detecting pseudo-contour noise and display apparatus using the detector | Electricity | 23 | Expired |
| US6795123B2 | Interpolation apparatus, and video signal processing apparatus including the same | Electricity | 22 | Expired |
| US6380943B1 | Color display apparatus | Physics | 20 | Expired |
| US6965358B1 | Apparatus and method for making a gray scale display with subframes | Physics | 18 | Expired |
| US7774592B2 | Encrypted communication method | Electricity | 17 | Active |
| US6690388B2 | PDP display drive pulse controller | Physics | 16 | Expired |
| US8356169B2 | Encryption communication system, apparatus and method for allowing direct encryption communication with a plurality of nodes | Electricity | 16 | Active |
| US4946613A | Photosetting ferrofluid compositions | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7031313B2 | Packet transfer apparatus with the function of flow detection and flow management method | Electricity | 12 | Expired |
| US6388645B2 | Display apparatus capable of adjusting subfield number according to brightness | Physics | 12 | Expired |
| US4987367A | Method and apparatus for predicting deterioration of a member constituting a part of equipment | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7420917B2 | Bandwidth policing method and packet transfer apparatus with bandwidth policing function | Emerging Cross-Sectional Technologies | 11 | Active |
| US7787442B2 | Communication statistic information collection apparatus | Electricity | 10 | Active |
| US6812932B2 | Detector for detecting pseudo-contour noise and display apparatus using the detector | Electricity | 10 | Expired |
| US4211276A | Method of making fin elements for heat exchangers | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6400346B2 | Display apparatus capable of adjusting subfield number according to brightness | Physics | 9 | Expired |
| US7969976B2 | Gateway apparatus, packet forwarding method, and program | Electricity | 9 | Active |
| US6414660B1 | Display device and method of controlling its brightness | Physics | 9 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.