Masao Koga
16Patents
4h-index
23Co-inventors
60Inventor score
Filing activity: Nov 16, 1979 → Jan 12, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4303560A | Rubbery polymer composition | Chemistry; Metallurgy | 9 | Expired |
| US5212045A | Method for image formation | Physics | 6 | Expired |
| US4517348A | Rubbery polymer composition | Chemistry; Metallurgy | 5 | Expired |
| US4599300A | Direct positive silver halide photographic emulsions | Physics | 4 | Expired |
| US5567771A | Chloroprene polymer composition and process for its production | Chemistry; Metallurgy | 4 | Expired |
| US6407179B1 | Acrylic rubber and its composition | Chemistry; Metallurgy | 4 | Expired |
| US5681891A | Method for producing a polychloroprene latex | Chemistry; Metallurgy | 3 | Expired |
| US4940657A | Photographic spectral sensitizing dye | Physics | 3 | Expired |
| US5624993A | Chloroprene polymer composition and process for its production | Chemistry; Metallurgy | 2 | Expired |
| US5254436A | Method for image formation | Physics | 2 | Expired |
| US5661205A | Method for producing a polychloroprene latex | Chemistry; Metallurgy | 2 | Expired |
| US7792155B2 | Communication system and slave and repeater units therefor | Emerging Cross-Sectional Technologies | 1 | Active |
| US7056986B2 | Ethylene-acrylic copolymer rubber composition | Chemistry; Metallurgy | 1 | Expired |
| US10496279B2 | Slave device, control method of slave device, non-volatile computer readable recording medium | Physics | 0 | Active |
| US6984681B2 | Method for producing a carboxyl group containing rubber | Chemistry; Metallurgy | 0 | Expired |
| US5824758A | Copolymer of chloroprene and .alpha.-cyanoacrylate | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.