Takayuki Katto
64Patents
17h-index
37Co-inventors
84Inventor score
Filing activity: Dec 28, 1973 → Mar 19, 1993
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4645826A | Process for production of high to ultra-high molecular weight linear polyarylenesulfides | Chemistry; Metallurgy | 99 | Expired |
| US4699975A | Process for producing readily crystallizable arylenesulfide resin composition containing organic acid or anhydride | Chemistry; Metallurgy | 52 | Expired |
| US4745167A | Polyarylene sulfide preparation in titanium reaction vessel with two distinct temperature ranges | Chemistry; Metallurgy | 46 | Expired |
| US4814430A | Process for producing poly(arylene sulfide) of reduced alkali metal content | Chemistry; Metallurgy | 44 | Expired |
| US4895892A | Melt-stable poly(arylene thioether-ketone) compositions | Chemistry; Metallurgy | 38 | Expired |
| US4794164A | Process for producing a polyarylene sulfide of excellent handling property and a polyarylene sulfide produced by the process thereof | Chemistry; Metallurgy | 37 | Expired |
| US4315081A | Antistatic resin composition | Emerging Cross-Sectional Technologies | 34 | Expired |
| US4812539A | Polyarylene sulfide preparation in titanium reaction vessel with two distinct temperature ranges | Chemistry; Metallurgy | 28 | Expired |
| US4613654A | Polyarylenesulfide complexes, processes for production and uses thereof | Chemistry; Metallurgy | 25 | Expired |
| US4975479A | Heat-resistant thermoplastic resin composition | Chemistry; Metallurgy | 22 | Expired |
| US4895924A | Poly(arylene thioether-ketone) fibers and production process thereof | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4935473A | Polyphenylene sulfide composition and method of producing the same | Chemistry; Metallurgy | 22 | Expired |
| US4820759A | Polyarylene thiother composition | Chemistry; Metallurgy | 21 | Expired |
| US4785057A | Para-phenylene sulfide block copolymer, process for the production of the same | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4795671A | Para-phenylene sulfide block copolymers, process for the production of the same and use thereof | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4931516A | Process for producing polyarylene sulfide in titanium vessel with addition of water | Chemistry; Metallurgy | 19 | Expired |
| US5179194A | Process for production of polyarylenesulfides | Chemistry; Metallurgy | 19 | Expired |
| US4659789A | Phenylene sulfide resin compositions | Textiles; Paper | 17 | Expired |
| US4826906A | Poly(arylene thioether-ketone) compositions improved in both melt stability and crystallinity | Chemistry; Metallurgy | 15 | Expired |
| US4021509A | Production of impact-resistant, thermoplastic resin compositions | Chemistry; Metallurgy | 14 | Expired |
| US4897238A | Stretched poly(arylene thioether-ketone) films and production process thereof | Chemistry; Metallurgy | 14 | Expired |
| US4980114A | Stretched poly(arylene thioether) block copolymer films and production process thereof | Chemistry; Metallurgy | 12 | Expired |
| US4886871A | Melt-stable poly(arylene thioetherketone) and production process thereof | Chemistry; Metallurgy | 12 | Expired |
| US4431772A | Vinyl chloride resin composition | Chemistry; Metallurgy | 12 | Expired |
| US4873283A | Molded or formed poly(arylene thioether-ketone) articles | Chemistry; Metallurgy | 11 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.