Ryu Oi
19Patents
6h-index
27Co-inventors
62Inventor score
Filing activity: May 9, 1986 → Oct 10, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6104530A | Transparent laminates and optical filters for displays using same | Emerging Cross-Sectional Technologies | 113 | Expired |
| US5804102A | Plasma display filter | Electricity | 55 | Expired |
| US5705101A | Near infrared absorber, preparation process therefor and use thereof | Physics | 34 | Expired |
| US5788914A | Near infrared ray absorbing compound having high durability and its use | Chemistry; Metallurgy | 14 | Expired |
| US5953857A | Method for controlling plant growth | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5446142A | Phthalocyanine and naphthalocyanine light-absorbing compound and optical recording medium containing same | Physics | 10 | Expired |
| US4694110A | Process for production of m-phenoxybenzyl alcohol | Chemistry; Metallurgy | 6 | Expired |
| US5639809A | Azo compounds and polarizing films using the compounds | Physics | 3 | Expired |
| US5646273A | Phthalocyanine compound and optical recording medium containing it | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4684449A | Process for producing m-hydroxybenzyl alcohol | Chemistry; Metallurgy | 3 | Expired |
| US5750229A | Phthalocyanine compound and optical recording medium containing it | Emerging Cross-Sectional Technologies | 2 | Expired |
| US5698682A | Azo compounds and polarizing films using the compounds | Physics | 1 | Expired |
| US5659039A | Quinophthalone compounds | Physics | 1 | Expired |
| US7091261B1 | Yellow hue compound and aqueous ink for ink-jet recording system using the same | Chemistry; Metallurgy | 1 | Expired |
| US5750599A | Quinophthalone compounds and polarizing films using same | Physics | 0 | Expired |
| US6800674B2 | Anthraquinone compound and water-based ink-jet recording ink containing the compound | Chemistry; Metallurgy | 0 | Expired |
| US5108558A | Process for the electroreduction of aromatic carboxylic acids | Chemistry; Metallurgy | 0 | Expired |
| US5068459A | Process for producing m-phenoxybenzyl alcohol | Chemistry; Metallurgy | 0 | Expired |
| US5162554A | Optically active enantiomers of substituted glyceraldehydes or glycidaldehydes formed as subtituted 1,5- dihydro-3H-2,4-benzodioxepines | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.