Katsushi Sugiyama
10Patents
6h-index
22Co-inventors
58Inventor score
Filing activity: Jan 30, 1997 → Jun 8, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5942377A | Reversible thermosensitive composition and reversible thermosensitive recording medium using same | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6174836A | Reversible thermosensitive recording medium, method of producing the medium, information recording devices using the medium, and image formation and erasing method using the medium | Performing Operations; Transporting | 14 | Expired |
| US5955225A | Reversible thermosensitive coloring composition and reversible thermosensitive recording medium using same | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5868821A | Thermally reversible color forming composition and thermally reversible recording medium using the thermally reversible color forming composition | Performing Operations; Transporting | 9 | Expired |
| US5891823A | Reversible thermosensitive recording medium | Performing Operations; Transporting | 9 | Expired |
| US6090192A | Reversible thermosensitive coloring composition and reversible thermosensitive recording medium using same | Performing Operations; Transporting | 9 | Expired |
| US6362130B1 | Reversible thermosensitive recording medium, card, label, disk, disk cartridge, tape cassette, method of producing the recording medium, and method of recording and erasing images using the same | Physics | 6 | Expired |
| US6489265B1 | Reversible thermosensitive recording medium, method of producing the medium, information recording devices using the medium, and image formation and erasing method using the medium | Performing Operations; Transporting | 6 | Expired |
| US6137027A | Solid waste treatment agent and treatment method of solid waste | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6794334B2 | Thermo reversible recording medium, member having information memorizing part, thermo reversible recording label, method of and apparatus for image processing | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.