Yoshihiro Hosaka
18Patents
11h-index
18Co-inventors
69Inventor score
Filing activity: Mar 12, 1979 → May 30, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4499171A | Positive type photosensitive resin composition with at least two o-quinone diazides | Physics | 37 | Expired |
| US4275142A | Photosensitive compositions and printing plates containing same | Emerging Cross-Sectional Technologies | 31 | Expired |
| US5405720A | Radiation-sensitive composition containing 1,2 quinonediazide compound, alkali-soluble resin and monooxymonocarboxylic acid ester solvent | Physics | 27 | Expired |
| US5215857A | 1,2-quinonediazide containing radiation-sensitive resin composition utilizing methyl 2-hydroxypropionate, ethyl 2-hydroxypropionate or methyl 3-methoxypropionate as the solvent | Physics | 23 | Expired |
| US5087548A | Positive type radiation-sensitive resin composition | Physics | 23 | Expired |
| US5238774A | Radiation-sensitive composition containing 1,2-quinonediazide compound, alkali-soluble resin and monooxymonocarboxylic acid ester solvent | Physics | 16 | Expired |
| US8459013B2 | Urea tank with closure member for vehicle exhaust system | Emerging Cross-Sectional Technologies | 15 | Active |
| US4384037A | Positive type photosensitive resin composition | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4923948A | Curable composition | Physics | 13 | Expired |
| US6020104A | Radiation-sensitive resin composition utilizing monooxymonocarboxylic acid ester solvent | Physics | 12 | Expired |
| US5494784A | Method of pattern formation utilizing radiation-sensitive resin composition containing monooxymonocarboxylic acid ester solvent | Physics | 11 | Expired |
| US5925492A | Radiation-sensitive resin composition utilizing monooxymonocarboxylic acid ester solvent | Physics | 11 | Expired |
| US6270939A | Radiation-sensitive resin composition | Physics | 10 | Expired |
| US6228554A | Radiation-sensitive resin composition | Physics | 10 | Expired |
| US10619407B2 | Sliding fire door | Fixed Constructions | 2 | Active |
| US9932767B2 | Fire door | Fixed Constructions | 1 | Active |
| US7409363B2 | Centralized management system for maintenance parts | Physics | 1 | Active |
| US9670715B2 | Fire door | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.