Keisuke Takuma
49Patents
9h-index
89Co-inventors
78Inventor score
Filing activity: Jul 18, 1986 → Sep 13, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5804102A | Plasma display filter | Electricity | 55 | Expired |
| US5705101A | Near infrared absorber, preparation process therefor and use thereof | Physics | 34 | Expired |
| US5677398A | Epoxy acrylate resins and their uses | Emerging Cross-Sectional Technologies | 31 | Expired |
| US5948593A | Optical recording medium | Emerging Cross-Sectional Technologies | 23 | Expired |
| US6080833A | Low-birefringent organic optical component and a spirobiindan polymer | Physics | 21 | Expired |
| US6106999A | Photosensitizer, visible light curable resin composition using the same, and use of the composition | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6458908B1 | Sulfur-containing unsaturated carboxylate compound and its cured products | Chemistry; Metallurgy | 19 | 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 |
| US6320020A | Sulfur-containing (thio)ether (co)polymer and a use thereof | Physics | 9 | Expired |
| US5045434A | Visible radiation sensitive composition containing substituted 3-(benzothiazo-2-yl)-7-diethylaminocoumarin as sensitizers | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5158703A | Resin composition for ultraviolet luminescent screen | Electricity | 8 | Expired |
| US5658707A | Optical recording media | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4954410A | Color toner composition | Physics | 5 | Expired |
| US5342974A | Halogenated anthraquinone and their use as near infrared rays absorbing optical filters | Physics | 5 | Expired |
| US5358536A | Dyestuff for heat-sensitive transfer record and transfer sheet containing same | Chemistry; Metallurgy | 5 | Expired |
| US6028161A | Polycarbonate copolymer and applications thereof | Physics | 5 | Expired |
| US5300475A | Sublimation thermal transfer printing sheet comprising novel magenta dyestuffs | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6130346A | Process for preparing an organic compound from an oxirane-containing compound in the presence of a tris(triaminophosphoranylideneamino)phosphine oxide | Chemistry; Metallurgy | 4 | Expired |
| US5567470A | Heat-sensitive transfer sheet containing blue dyestuff | Chemistry; Metallurgy | 4 | Expired |
| US4734218A | Dichroic azo dyestuffs and liquid crystal composition containing said dyestuffs | Chemistry; Metallurgy | 4 | Expired |
| US5672462A | Optical recording medium | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5359075A | Quinophthalone compound | Chemistry; Metallurgy | 3 | Expired |
| US5182409A | Preparation process of bis(1,2-diaryl-1,2-ethyolenedithiolato)nickel-based complex | Chemistry; Metallurgy | 3 | Expired |
| US5168093A | Sublimation thermaltransfer printing sheet comprising novel magenta dyestuffs | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.