Ichiro Okamoto
48Patents
10h-index
38Co-inventors
75Inventor score
Filing activity: Sep 10, 1982 → May 15, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5440404A | Image signal compression apparatus and method using variable length encoding | Electricity | 40 | Expired |
| US4818394A | Separating agent | Chemistry; Metallurgy | 33 | Expired |
| US4436896A | Polyester copolymer | Chemistry; Metallurgy | 28 | Expired |
| US4786415A | Separation agent comprising aliphatic ester of polysaccharide | Performing Operations; Transporting | 19 | Expired |
| USRE34457E | Separating agent | General | 17 | Expired |
| US4415727A | Modified polyethylene terephthalate molding material | Chemistry; Metallurgy | 16 | Expired |
| US4879038A | Separation agent comprising acyl- or carbamoyl-substituted polysaccharide | Chemistry; Metallurgy | 14 | Expired |
| US5539586A | Method and apparatus for recording digital data on a recording medium by recording ODD-numbered and even-numbered data segments and compressed digital data in distinct recording regions | Physics | 14 | Expired |
| US5315445A | Audio signal recording apparatus and method for use with VTR | Electricity | 13 | Expired |
| US5493414A | Method of dubbing digital video signals | Physics | 11 | Expired |
| US5805469A | Digital audio signal processing apparatus and method for error concealment | Electricity | 10 | Expired |
| US4714555A | Agent for separation | Chemistry; Metallurgy | 10 | Expired |
| US4606567A | Door latch operating device | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4892659A | Separation agent comprising aliphatic ester of polysaccharide | Performing Operations; Transporting | 7 | Expired |
| US5604012A | Hollow fiber fabric and process for producing the same | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5041226A | Separating with an agent comprising aliphatic ester of polysaccharide | Performing Operations; Transporting | 7 | Expired |
| US5032277A | Optical resolution with .beta.-1,4-mannan tribenzoate | Performing Operations; Transporting | 6 | Expired |
| US4786416A | Resolving agent | Chemistry; Metallurgy | 6 | Expired |
| US4830752A | Separation agent comprising 1,3-glucan | Performing Operations; Transporting | 6 | Expired |
| US5489387A | Separation agent comprising acyl- or carbamoyl-substituted polysaccharide | Chemistry; Metallurgy | 5 | Expired |
| US4966694A | Separation agent comprising acyl- or carbamoyl-substituted polysaccharide | Chemistry; Metallurgy | 5 | Expired |
| US5089138A | Separating with an agent comprising an aliphatic ester of a polysaccharide | Performing Operations; Transporting | 4 | Expired |
| US5017290A | Separation agent comprising acyl- or carbamoyl-substituted polysaccharide | Chemistry; Metallurgy | 4 | Expired |
| US7428008B2 | Video imaging device, video conversion device, and video edition device | Electricity | 4 | Expired |
| US4931184A | Optical resolution with tribenzoyl-b-1,4-chitosan | Performing Operations; Transporting | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.