Yasuhiro Yamada
131Patents
17h-index
188Co-inventors
89Inventor score
Filing activity: Apr 5, 1973 → Sep 13, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5175618A | Compression method for interlace moving image signals | Electricity | 170 | Expired |
| US5153925A | Image processing apparatus | Electricity | 78 | Expired |
| US6347561B2 | Push-pull control cable | Emerging Cross-Sectional Technologies | 61 | Expired |
| US5079547A | Method of orthogonal transform coding/decoding | Electricity | 56 | Expired |
| US5117228A | System for coding and decoding an orthogonally transformed audio signal | Physics | 48 | Expired |
| US5121447A | Apparatus for performing gradation processing on image data | Electricity | 39 | Expired |
| US5894314A | Ink jet recording apparatus using thermal energy | Performing Operations; Transporting | 39 | Expired |
| US6457794B1 | Ink jet recording method and apparatus for controlling recording signal parameters | Performing Operations; Transporting | 37 | Expired |
| US5861895A | Ink jet recording method and apparatus controlling driving signals in accordance with head temperature | Performing Operations; Transporting | 35 | Expired |
| US6400470B1 | Image processing apparatus and method for discriminating an original having a predetermined pattern | Electricity | 31 | Expired |
| US5731880A | Image processing apparatus for discriminating an original having a predetermined pattern | Electricity | 24 | Expired |
| US5121446A | Image processing apparatus capable of obtaining multi-level data | Electricity | 24 | Expired |
| US6229832A | Optical wavelength stability control apparatus, optical transmitter and multiple wavelength transmitter | Electricity | 23 | Expired |
| US4873071A | Graphite structures and method for production thereof | Chemistry; Metallurgy | 22 | Expired |
| US4943800A | Intrusion detection system using three pyroelectric sensors | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5790165A | Image processing apparatus and providing controlling addition of predetermined data in a border portion | Electricity | 19 | Expired |
| US6116710A | Ink jet recording method and apparatus using thermal energy | Performing Operations; Transporting | 17 | Expired |
| US4881900A | Sensing display apparatus of image pattern | Physics | 17 | Expired |
| US4590055A | Pitch-based carbon fibers and pitch compositions and precursor fibers therefor | Chemistry; Metallurgy | 17 | Expired |
| US4416010A | Double error correcting system in digital signal reproducing apparatus | Physics | 15 | Expired |
| US5679226A | Oxygen sensor | Physics | 15 | Expired |
| US4866654A | Digital multiplying circuit | Physics | 14 | Expired |
| US5481382A | Method of transmitting and receiving image data and apparatus which is used in such a method | Electricity | 14 | Expired |
| US4333160A | Memory control system | Physics | 14 | Expired |
| US5875663A | Rolling method and rolling mill of strip for reducing edge drop | Performing Operations; Transporting | 13 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.