Junichi Yoshikawa
29Patents
11h-index
34Co-inventors
75Inventor score
Filing activity: Mar 6, 1978 → May 12, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5109236A | Smoothness measuring device and recording apparatus to which the smoothness measuring device is applied | Physics | 37 | Expired |
| US5395101A | Clamp for use in optical fiber coupler manufacturing apparatus | Emerging Cross-Sectional Technologies | 34 | Expired |
| US5247598A | Reinforcing apparatus for optical-fiber coupler | Physics | 27 | Expired |
| US5689292A | Multi-step heating of a recording head | Performing Operations; Transporting | 24 | Expired |
| US5329600A | Reflection monitor optical fiber coupler manufacturing system and method | Physics | 21 | Expired |
| US5261018A | Optical-coupler reinforcing material and optical-coupler reinforcing method | Physics | 21 | Expired |
| US7222955B2 | Both-side recording apparatus | Performing Operations; Transporting | 19 | Expired |
| US4712000A | Rotary encoder with source-adjacent light sampling and control | Electricity | 19 | Expired |
| US6793425B2 | Feeding device with loading device adapted to hold a plurality of media or a storage case with a plurality of media and recording apparatus containing same | Performing Operations; Transporting | 17 | Expired |
| US5189436A | Recording method that selects a movement velocity in conformity with a recognized recording width to accomplish recording and recording apparatus using the same method | Performing Operations; Transporting | 15 | Expired |
| US6288067A | Prophylactic or therapeutic agents for drug-induced renal injury | Human Necessities | 12 | Expired |
| US5389192A | Apparatus and method for removing a coating from a coated linear material | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5306378A | Apparatus and method for removing a coating from a coated linear material | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7547011B2 | Sheet feeding device and image forming apparatus | Performing Operations; Transporting | 9 | Active |
| US5150977A | Recording apparatus with detector for paper edge and end of ribbon sensing | Performing Operations; Transporting | 7 | Expired |
| US7033014B2 | Both-side recording apparatus | Performing Operations; Transporting | 6 | Expired |
| US7063473B2 | Both-side recording apparatus | Performing Operations; Transporting | 6 | Expired |
| US7063417B2 | Recording apparatus and recording medium conveying apparatus | Performing Operations; Transporting | 5 | Expired |
| US4189350A | Process for purifying urokinase | Chemistry; Metallurgy | 4 | Expired |
| US4986677A | Electronic typewriter having improved paper and ink feed mechanisms selectively driven by a single reversible motor | Performing Operations; Transporting | 4 | Expired |
| US7820667B2 | Methods of treating hypertension | Chemistry; Metallurgy | 4 | Expired |
| US8262216B2 | Inkjet printing apparatus, liquid application mechanism and method of controlling the liquid application mechanism | Performing Operations; Transporting | 4 | Active |
| US5478158A | Output apparatus having a rotatable type wheel | Performing Operations; Transporting | 3 | Expired |
| US4147592A | Purification of urokinase | Emerging Cross-Sectional Technologies | 2 | Expired |
| US5257869A | Print carriage positioning with normal and precision modes | Performing Operations; Transporting | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.