Masayoshi Ito
32Patents
8h-index
42Co-inventors
71Inventor score
Filing activity: May 20, 1982 → Jun 24, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4797477A | Process for preparing sialic acid derivatives | Chemistry; Metallurgy | 20 | Expired |
| US4698332A | Expectorant | Chemistry; Metallurgy | 18 | Expired |
| US6084015A | Rubber composition | Chemistry; Metallurgy | 15 | Expired |
| US4694076A | Sialic acid derivatives | Human Necessities | 14 | Expired |
| US5023239A | Sialosyl cholesterol, process for producing the same, and neuropathy remedy comprising the same | Chemistry; Metallurgy | 8 | Expired |
| US5158886A | Monoclonal antibodies specific for free N-acetylfuraminic acid and beta-glycosides and beta-glycoconjugates thereof | Human Necessities | 8 | Expired |
| US4447600A | N-Acetylneuraminic acid derivatives and the preparation thereof | Chemistry; Metallurgy | 8 | Expired |
| US4968786A | Sialic acid derivatives, galactose derivatives and method for producing the same | Chemistry; Metallurgy | 8 | Expired |
| US4730058A | Sialosylceramides and production method thereof | Chemistry; Metallurgy | 7 | Expired |
| US4691012A | Sialic acid derivative and process for preparing the same | Chemistry; Metallurgy | 6 | Expired |
| US4950750A | Glycolipid containing N-glycolylneuraminic acid and method of producing the same | Chemistry; Metallurgy | 6 | Expired |
| US4663443A | N-substituted neuraminic acid derivatives | Human Necessities | 6 | Expired |
| US4918177A | Sialic acid derivatives having active carbonyl group | Human Necessities | 6 | Expired |
| US4968471A | Solution spinning process | Textiles; Paper | 6 | Expired |
| US4914195A | Process for preparing N-acetylneuraminic acid derivatives | Chemistry; Metallurgy | 6 | Expired |
| US5101026A | Ganglioside related compounds and method of producing the same | Chemistry; Metallurgy | 5 | Expired |
| US4990603A | Sialic acid derivatives and process therefor | Chemistry; Metallurgy | 5 | Expired |
| US4880572A | Un-natural ceramide related compounds and preparation thereof | Chemistry; Metallurgy | 4 | Expired |
| US5126330A | Sialosyl cholesterol and neuropathy remedy comprising the same | Chemistry; Metallurgy | 4 | Expired |
| US5420238A | Poly(silyleneethynylene phenyleneethynylenes), method for preparing same and hardened product thereof | Chemistry; Metallurgy | 3 | Expired |
| US5057605A | Sialocylglycerolipids and method for preparing the same | Human Necessities | 3 | Expired |
| US4751290A | Sialosylcerebrosides | Human Necessities | 3 | Expired |
| US4675391A | Glycoside derivatives | Human Necessities | 3 | Expired |
| US4963653A | Sialic acid-bonded octapeptide and preparation thereof | Emerging Cross-Sectional Technologies | 2 | Expired |
| US5061425A | Solution spinning process for producing a polyethylene terephthalate filament | Textiles; Paper | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.