Koichi Koga
15Patents
6h-index
21Co-inventors
66Inventor score
Filing activity: May 20, 1974 → May 28, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6075505A | Active matrix liquid crystal display | Physics | 67 | Expired |
| US6727878B2 | Liquid crystal display | Physics | 20 | Expired |
| US4028331A | Ultra violet absorber | Chemistry; Metallurgy | 12 | Expired |
| US6894673B2 | Liquid crystal display control circuit | Physics | 10 | Expired |
| US7116297B2 | Liquid crystal display device and driving method for liquid crystal display device | Physics | 9 | Expired |
| US6747669B1 | Method for varying initial value in gray scale modification | Physics | 6 | Expired |
| US3947471A | Benz (c) fluoran compounds and recording sheet containing them | Performing Operations; Transporting | 4 | Expired |
| US6982693B2 | Liquid crystal display | Physics | 3 | Expired |
| US7202845B2 | Liquid crystal display device | Physics | 2 | Expired |
| US6911967B2 | Liquid crystal display | Physics | 2 | Expired |
| US10511033B2 | Solid oxide fuel cell | Emerging Cross-Sectional Technologies | 1 | Active |
| US7126572B2 | Image display method and image display device | Physics | 1 | Expired |
| US8883369B2 | Connected body connecting electrically between power generation parts of solid oxide fuel cells | Emerging Cross-Sectional Technologies | 0 | Active |
| US10181605B2 | Joining material and stack structure of fuel cell using the joining material | Emerging Cross-Sectional Technologies | 0 | Active |
| US8748650B2 | Method for production of N-carboxy amino acid anhydride and amino acid carbamate compound | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.