Naoki Obi
10Patents
5h-index
16Co-inventors
59Inventor score
Filing activity: Mar 2, 1987 → Dec 20, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5372911A | Process of forming super high-contrast negative images and silver halide photographic material and developer being used therefor | Physics | 12 | Expired |
| US5217842A | Superhigh contrast negative image forming process | Physics | 11 | Expired |
| US6730241B2 | Polymerizable composition showing liquid-crystal phase and optically anisotropic object made with the same | Chemistry; Metallurgy | 9 | Expired |
| US5766833A | Process of forming super high-contrast negative images and silver halide photographic material and developer being used therefor | Physics | 6 | Expired |
| US5284733A | High-contrast image forming process | Physics | 6 | Expired |
| US5362621A | Direct positive silver halide photographic material and method for forming high contrast positive image using the same | Physics | 4 | Expired |
| US6169186A | Bismaleimides comprising mesogenic groups | Chemistry; Metallurgy | 3 | Expired |
| US5460919A | Process of forming super high-contrast negative images and silver halide photographic material and developer being used therefor | Physics | 3 | Expired |
| US5683854A | Process of forming super high-contrast negative images and silver halide photographic material and developer being used therefor | Physics | 2 | Expired |
| US4724196A | Silver halide photographic lith material | Emerging Cross-Sectional Technologies | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.