Yusuke Tajima
25Patents
10h-index
38Co-inventors
75Inventor score
Filing activity: Jul 17, 1978 → May 16, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5368976A | Pigment-dispersed color-filter composition comprising an alkali-soluble block copolymer as a binder | Emerging Cross-Sectional Technologies | 38 | Expired |
| US5021743A | Biasing networks for matrix amplifiers | Electricity | 23 | Expired |
| US5847015A | Pigment-dispersed radiation-sensitive composition for color filters | Physics | 20 | Expired |
| US5021756A | Transversal and recursive filters useable in a diplexer | Electricity | 18 | Expired |
| US5025225A | Amplifier having substantially constant D.C. to r.f. conversion efficiency | Electricity | 16 | Expired |
| US4787686A | Monolithic programmable attenuator | Electricity | 14 | Expired |
| US4660006A | Radio frequency multiplier producing an even harmonic output | Electricity | 12 | Expired |
| US5323064A | Radio frequency signal frequency converter | Electricity | 11 | Expired |
| US4532484A | Hybrid coupler having interlaced coupling conductors | Electricity | 10 | Expired |
| US8368451B2 | High power radio frequency (RF) switch | Electricity | 10 | Active |
| US7671219B2 | Method for manufacturing fullerene derivatives | Chemistry; Metallurgy | 9 | Expired |
| US4211986A | Strip line coupler having spaced ground plate for increased coupling characteristic | Electricity | 8 | Expired |
| US4709410A | Frequency conversion circuits | Electricity | 7 | Expired |
| US8810314B2 | Envelope tracking amplifier | Electricity | 7 | Active |
| US4662000A | Frequency conversion circuits | Electricity | 7 | Expired |
| US4684965A | Monolithic programmable attenuator | Electricity | 6 | Expired |
| US6528231B1 | PHOTOSENSITIVE RESIN COMPOSITION, PRINTED WIRING BOARD, SUBSTRATE FOR DISPOSING SEMICONDUCTOR CHIPS, SEMICONDUCTOR DEVICE AND PROCESSES FOR PRODUCING A PRINTED WIRING BOARD, A SUBSTRATE FOR DISPOSING SEMICONDUCTOR CHIPS AND A SEMICONDUCTOR DEVICE | Emerging Cross-Sectional Technologies | 4 | Expired |
| US9653964B2 | Linear actuator | Electricity | 3 | Active |
| US9030255B2 | Linearization circuit and related techniques | Electricity | 3 | Active |
| US8289085B2 | Amplifier circuit | Electricity | 3 | Active |
| USRE37033E | Pigment-dispersed color-filter composition comprising an alkali-soluble block copolymer as a binder | General | 3 | Expired |
| US5998089A | Photosensitive resin composition comprising fullerene | Emerging Cross-Sectional Technologies | 2 | Expired |
| US10021769B2 | Light driving apparatus and light control system | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US8224264B1 | RF amplifier modulation circuit and related techniques | Electricity | 0 | Active |
| US6709804B2 | Printed wiring board and semiconductor device and processes to prepare the same | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.