Kyoji Tsutsui
45Patents
16h-index
40Co-inventors
81Inventor score
Filing activity: May 22, 1978 → Mar 16, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6579826B2 | Reversible thermosensitive recording medium and image forming and erasing method using the recording medium | Performing Operations; Transporting | 123 | Expired |
| US4245021A | Electrophotographic element having charge transport layer | Emerging Cross-Sectional Technologies | 51 | Expired |
| US5432534A | Reversible thermosensitive coloring composition, recording medium, recording method, and image display apparatus using the recording medium | Performing Operations; Transporting | 44 | Expired |
| US5981115A | Reversible thermosensitive recording material | Emerging Cross-Sectional Technologies | 26 | Expired |
| US5296439A | Reversible thermosensitive coloring recording medium, recording method, and image display apparatus using the recording medium | Performing Operations; Transporting | 26 | Expired |
| US4596754A | Electrophotographic printing original plate and electrophotographic plate making process using the printing original plate | Physics | 25 | Expired |
| US5521138A | Reversible thermosensitive coloring composition, and recording medium using the same | Performing Operations; Transporting | 23 | Expired |
| US6154243A | Reversible thermal recording method and apparatus therefor | Performing Operations; Transporting | 22 | Expired |
| US4251614A | Novel disazo compounds, process for the preparation of same and application of said disazo compounds and analogues thereof to electrophotographic sensitive materials | Physics | 20 | Expired |
| US4260672A | Electrophotographic sensitive element having a photoconductive disazo pigment | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4251613A | Disazo compounds, process for preparation of same and application of said disazo compounds and analogues thereof to electrophotographic sensitive materials | Chemistry; Metallurgy | 18 | Expired |
| US6090748A | Reversible thermosensitive recording material and recording method and recording apparatus therefor | Performing Operations; Transporting | 18 | Expired |
| US4299896A | Electrophotographic sensitive materials containing a disazo pigment | Physics | 18 | Expired |
| US6677273B2 | Erasable recording material capable of inputting additional information written thereon and information recording system and information recording method using the recording material | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5641724A | Reversible thermosensitive coloring composition and a thermosensitive recording medium using thereof | Performing Operations; Transporting | 17 | Expired |
| US5981429A | Reversible thermosensitive recording medium | Performing Operations; Transporting | 17 | Expired |
| US5942377A | Reversible thermosensitive composition and reversible thermosensitive recording medium using same | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5185194A | Heat-mode recording medium | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4314015A | Electrophotographic sensitive materials containing disazo compounds | Physics | 15 | Expired |
| US4363859A | Electrophotographic photoconductor | Physics | 14 | Expired |
| US6063173A | Reversible thermosensitive coloring composition and reversible thermosensitive recording medium using the same | Performing Operations; Transporting | 13 | Expired |
| US6432518B1 | Erasable recording material capable of inputting additional information written thereon and information recording system and information recording method using the recording material | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5703005A | Thermosensitive coloring composition and reversible thermosensitive recording medium using same | Performing Operations; Transporting | 12 | Expired |
| US4565759A | Plates for use in lithographic printing | Physics | 10 | Expired |
| US5955225A | Reversible thermosensitive coloring composition and reversible thermosensitive recording medium using same | Emerging Cross-Sectional Technologies | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.