Tohru Katoh
25Patents
7h-index
36Co-inventors
65Inventor score
Filing activity: Jun 26, 1986 → Nov 29, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5476597A | Liquid softener composition, novel quaternary ammonium salt, and process for the preparation of said salt | Chemistry; Metallurgy | 69 | Expired |
| US5580481A | Aqueous fabric softener composition, novel quaternary ammonium salt, and process for the preparation of said salt | Chemistry; Metallurgy | 66 | Expired |
| US5538937A | Agricultural chemical composition comprising quaternary ammonium enhancers | Human Necessities | 38 | Expired |
| US5851982A | Liquid softener compositions and quaternary ammonium salt | Textiles; Paper | 20 | Expired |
| US5696070A | Quarternary ammonium salt, method for production thereof, and softener composition using salt | Textiles; Paper | 15 | Expired |
| US5563111A | Agricultural chemical composition comprising amine surfactants with at least one ester or amide linkage | Human Necessities | 14 | Expired |
| US5985794A | Agricultural chemical composition | Human Necessities | 12 | Expired |
| US5282983A | Fabric softener composition and ammonium salt | Textiles; Paper | 7 | Expired |
| US5097073A | Production of aliphatic primary of secondary amine | Chemistry; Metallurgy | 5 | Expired |
| US5728649A | Agricultural chemical composition | Human Necessities | 4 | Expired |
| US5472819A | Toner and developer composition containing the same | Physics | 4 | Expired |
| US7214718B1 | Quaternary ammonium salt composition | Chemistry; Metallurgy | 4 | Expired |
| US7115779B2 | Softener composition | Chemistry; Metallurgy | 3 | Expired |
| US4740609A | Phosphoric esters and process for preparing same | Chemistry; Metallurgy | 2 | Expired |
| US4845239A | Phosphoric esters and process for preparing the same | Chemistry; Metallurgy | 2 | Expired |
| US6541444B1 | Softener composition | Textiles; Paper | 2 | Expired |
| US4774350A | Phosphoric ester | Chemistry; Metallurgy | 1 | Expired |
| US6521588B1 | Softener composition | Chemistry; Metallurgy | 1 | Expired |
| US6624137B1 | Softening finish composition | Textiles; Paper | 1 | Expired |
| US7351685B2 | Softener composition | Textiles; Paper | 0 | Expired |
| US7056450B2 | Highly concentrated aqueous solutions of N,N-dialkyl-glycines and process for preparation thereof | Chemistry; Metallurgy | 0 | Expired |
| US7524486B2 | Hair cosmetic, aminocarboxylic acid amide and method for producing the same | Human Necessities | 0 | Active |
| US6855682B2 | Softener composition | Chemistry; Metallurgy | 0 | Expired |
| US6410502B1 | Softener compositions | Chemistry; Metallurgy | 0 | Expired |
| US7531165B2 | Hair cosmetic, aminocarboxylic acid amide and method for producing the same | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.