Toshio Honjo
21Patents
8h-index
36Co-inventors
75Inventor score
Filing activity: Jan 7, 1985 → Nov 30, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5595850A | Ferrite carrier for electrophotographic developer and developer containing the carrier | Physics | 26 | Expired |
| US4977054A | Developer for electrostatic image comprising coated carrier | Emerging Cross-Sectional Technologies | 26 | Expired |
| US5204204A | Carrier for developing electrostatic latent image | Physics | 18 | Expired |
| US5466552A | Ferrite carrier for electrophotographic developer and developer containing the carrier | Physics | 16 | Expired |
| US4598034A | Ferrite carriers for electrophotographic development | Physics | 12 | Expired |
| US5419994A | Carrier for electrophotographic developer, process for preparing the same and developer prepared by using said carrier | Physics | 11 | Expired |
| US5976747A | Ferrite carrier for electrophotographic developer and electrophotographic developer containing the same | Physics | 8 | Expired |
| US5518849A | Ferrite carrier for electrophotographic developer and developer using said carrier | Physics | 8 | Expired |
| US7566519B2 | Carrier for electrophotographic developer, and electrophotographic developer using the same | Physics | 6 | Active |
| US7442483B2 | Ferrite carrier for electrophotographic developer and method for preparing the same, and electrophotographic developer using the same | Physics | 5 | Expired |
| US4861694A | Process for producing carriers for developer | Physics | 5 | Expired |
| US7521163B2 | Resin-coated ferrite carrier for electrophotographic developer, its production method, and electrophotographic developer using the resin-coated ferrite carrier | Physics | 4 | Active |
| US5491042A | Method for manufacturing a resin-coated carrier for an electrophotographic developer | Physics | 4 | Expired |
| US4871639A | Carrier for electrophotographic developer | Physics | 3 | Expired |
| US7824833B2 | Resin-coated ferrite carrier for electrophotographic developer, its production method, and electrophotographic developer using the resin-coated ferrite carrier | Physics | 2 | Active |
| US6071663A | Carrier for electrophotographic development and electrophotographic developer containing the same | Physics | 2 | Expired |
| US5965317A | Regeneration of carrier and electrophotographic developer containing regenerated carrier | Physics | 1 | Expired |
| US6124068A | Carrier for electrophotographic development and electrophotographic developer containing the same | Physics | 1 | Expired |
| US8628905B2 | Ferrite core material for resin-filled type carrier, resin-filled type carrier, and electrophotographic developer using the carrier | Physics | 1 | Active |
| US8092971B2 | Resin-coated carrier for electrophotographic developer and process for producing the same, and electrophotographic developer comprising the resin-coated carrier | Physics | 0 | Active |
| US7598011B2 | Irregular shaped ferrite carrier and electrophotographic developer using the ferrite carrier | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.