Ichiro Terada
30Patents
11h-index
59Co-inventors
78Inventor score
Filing activity: Apr 1, 1976 → Jul 29, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6336012B1 | Developing device, process cartridge and electric energy supply part to developing roller | Physics | 79 | Expired |
| US5759373A | Porous ion exchanger and method for producing deionized water | Performing Operations; Transporting | 56 | Expired |
| US5961805A | Method and apparatus for producing deionized water | Chemistry; Metallurgy | 55 | Expired |
| US4042409A | Water repellent gypsum composition | Chemistry; Metallurgy | 41 | Expired |
| US6228240A | Method and apparatus for producing deionized water | Chemistry; Metallurgy | 39 | Expired |
| US5180750A | Anion exchanger | Chemistry; Metallurgy | 29 | Expired |
| US6366746B1 | Developing device and electric energy supply part for applying developing bias voltage | Physics | 20 | Expired |
| US6201935A | Electrophotographic image forming apparatus, electrophotographic image forming system, and process cartridge | Physics | 15 | Expired |
| US6385413B2 | Developing device to which developing voltage is applied from non-driving side | Physics | 14 | Expired |
| US6714750B2 | Process cartridge, mounting mechanism for process cartridge and electrophotographic image forming apparatus | Physics | 14 | Expired |
| US6692858B2 | Electrolyte membrane for polymer electrolyte fuel cell and producing method thereof | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6255094A | .beta.-galactoside-.alpha.2, 6-sialyltransferase gene | Chemistry; Metallurgy | 10 | Expired |
| US6338784B1 | Apparatus for producing deionized water | Chemistry; Metallurgy | 9 | Expired |
| US5827714A | .beta.-galactoside-.alpha.-2, 6-sialyltransferase, and a process for producing from Photobacterium | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6071397A | Apparatus for producing deionized water | Chemistry; Metallurgy | 7 | Expired |
| US5948826A | Heterogeneous ion exchange membrane and process for its production | Chemistry; Metallurgy | 7 | Expired |
| US7582713B2 | Ion exchange polymer dispersion, process for its production and its use | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6311030A | Charging device in which charging member is contactable with and separable from charged member | Physics | 5 | Expired |
| US5128378A | Cation exchanger | Chemistry; Metallurgy | 5 | Expired |
| US5834257A | .alpha.-agarase and production process of oligosaccharides and monosaccharides | Chemistry; Metallurgy | 5 | Expired |
| US6917774B2 | PROCESS CARTRIDGE MOUNTING AND DEMOUNTING MECHANISM INCLUDING A GUIDE TO BE POSITIONED, A PROCESS CARTRIDGE DETACHABLY MOUNTABLE TO ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS INCLUDING A GUIDE TO BE POSITIONED OR A CARTRIDGE POSITIONING PORTION, AND THE ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS | Physics | 5 | Expired |
| US7488788B2 | Electrolyte polymer for polymer electrolyte fuel cells, process for its production and membrane-electrode assembly | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5124261A | Gene encoding aqualysin I, recombinant vector containing the same and process of producing aqualysin I | Chemistry; Metallurgy | 3 | Expired |
| US6121985A | Vertically opening laser recording apparatus | Electricity | 3 | Expired |
| US5908766A | Method of the production of saccharides containing sialic acid | Chemistry; Metallurgy | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.