Takashi Yumiba
32Patents
9h-index
42Co-inventors
71Inventor score
Filing activity: Jul 6, 1992 → Jul 9, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6938162B1 | Optical disk, optical disk recording and reproducing apparatus, method for recording, reproducing and deleting data on optical disk, and information processing system | Physics | 144 | Expired |
| US5384601A | Color adjustment apparatus for automatically changing colors | Electricity | 107 | Expired |
| US5289295A | Color adjustment apparatus | Electricity | 58 | Expired |
| US6735160B1 | Optical disc, and recording apparatus, recording method, and reproducing apparatus for the same | Physics | 28 | Expired |
| US6526010B1 | Recording medium, method and apparatus for recording/reproducing information which has been scrambled using a medium identifier and a sector number | Physics | 22 | Expired |
| US5790569A | Method and apparatus for generating, recording and transmitting an error product code block having an improved check code arrangement | Electricity | 19 | Expired |
| US5483359A | Color image scanning apparatus for reading a color original without color shift regardless of a magnification ratio of the original | Electricity | 16 | Expired |
| US6661768B1 | Optical disk, and method and apparatus for reproducing information recorded in optical disk | Physics | 12 | Expired |
| US7400725B1 | Information recording medium for recording a scrambled part of content information, and method and apparatus for reproducing information recorded therein | Physics | 10 | Expired |
| US5530239A | Document reading apparatus employing two subsequent samplings of the light source to insure stability of the light intensity level before scanning occurs | Electricity | 8 | Expired |
| US6182263A | Apparatus for generating, recording and transmitting an error product code block having an improved check code arrangement | Electricity | 6 | Expired |
| US5428461A | Reduction image converting device | Electricity | 5 | Expired |
| US5914969A | Device and method for error correcting coding, and device and method for error correcting decoding | Electricity | 5 | Expired |
| US7196994B2 | Information recording medium, information recording apparatus and information reproduction apparatus for the same | Physics | 3 | Expired |
| US6891788B2 | Optical disk, and method and apparatus for reproducing information recorded in optical disk | Physics | 3 | Expired |
| US7209422B2 | Optical disc recording method and optical disc reproducing method | Physics | 3 | Expired |
| US7092342B2 | Optical disc, recording apparatus and method, and reproduction apparatus and method | Physics | 2 | Expired |
| US8031869B2 | Information recording medium, usage management method, and usage management apparatus | Physics | 2 | Active |
| US7092333B2 | Device and program for checking optical disks | Physics | 2 | Expired |
| US6654380B1 | Data exchange unit | Electricity | 2 | Expired |
| US7136335B2 | Information recording medium, recording apparatus, and reproduction apparatus | Physics | 2 | Expired |
| US7023779B2 | Optical disc, recording device, and recording device | Physics | 2 | Expired |
| US7133349B2 | Optical disc, recording apparatus and method, and reproduction apparatus and method | Physics | 1 | Expired |
| US7099245B2 | Optical disk, and method and apparatus for reproducing information recorded in optical disk | Physics | 1 | Expired |
| US7164644B2 | Optical disc, recording apparatus method, and reproduction apparatus and method | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.