Tamotsu Ito
54Patents
16h-index
51Co-inventors
87Inventor score
Filing activity: Apr 26, 1974 → Sep 13, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8150079B2 | Personal digital assistant and stereo reproduction method | Electricity | 164 | Active |
| US5608717A | Information recording media and optical disc presenting a character or a graphic pattern formed by specified pit patterns on data tracks | Physics | 102 | Expired |
| US6633724B1 | Realtime data recording method | Electricity | 75 | Expired |
| US6594442B1 | Optical disk recording still image data, a method and apparatus for recording and playing back still image data to and from the optical disk | Electricity | 66 | Expired |
| US7224886B2 | Method of using AV devices and AV device system | Electricity | 59 | Expired |
| US6393201B1 | Reproducing apparatus and reproducing/recording apparatus memorizing identification information of optical information meda and method thereof | Electricity | 50 | Expired |
| US5751671A | Information recording media and optical disk, disk having specific data so that a visible pattern of characters or graphics appear on a copy disk | Physics | 45 | Expired |
| US5875156A | Playback system for an optical disc representing a character or a graphic pattern formed by specified pit patterns | Physics | 42 | Expired |
| US3955266A | Vacuum sealed molding process for producing molds having a deep concave portion or a convex portion | Emerging Cross-Sectional Technologies | 41 | Expired |
| US5499221A | CD-ROM retrieval apparatus | Physics | 38 | Expired |
| US6493504B1 | Storage medium, recording apparatus, playback apparatus, recording method, and computer-readable storage medium | Electricity | 36 | Expired |
| US6243340A | Information recording apparatus including system control means for producing managing information for managing data recorded on an information recording medium and preventing designated data from being accessed | Electricity | 36 | Expired |
| US9032438B2 | Method and apparatus for accessing content | Electricity | 32 | Active |
| US6483983B1 | Information reproducing method, information reproducing apparatus and information recording/reproducing apparatus | Electricity | 22 | Expired |
| US6496978B1 | Microcomputer control system in which programs can be modified from outside of the system and newer versions of the modified programs are determined and executed | Physics | 21 | Expired |
| US6631107B1 | Method and apparatus for information recording medium | Physics | 21 | Expired |
| US6701063B1 | Video disc recording and reproducing apparatus, and method using the same | Electricity | 16 | Expired |
| US4146756A | Moving voice coil transducer with diaphragm having concentric sections of opposite curvature | Electricity | 15 | Expired |
| US6463022B1 | Information recording medium, enclosing casing of information recording medium, and information recording apparatus using the same | Electricity | 11 | Expired |
| US5768502A | Error correcting apparatus for detecting and correcting errors in data accessed from a storage medium | Physics | 9 | Expired |
| US6445654B1 | Recording/reproducing method and device with supplementary data storage and output | Electricity | 8 | Expired |
| US5808987A | Information reproducing system for reproducing interleaved image data and voice data from a recording medium in accordance with a control program reproducing from the recording medium | Physics | 8 | Expired |
| US5737306A | Playback system for an optical disc presenting a character or a graphic pattern formed by specified pit patterns on data tracks | Physics | 6 | Expired |
| US6467005B1 | System for connecting drive unit for host apparatus | Physics | 6 | Expired |
| US7174537B2 | Microcomputer control system in which programs can be modified and newer versions of the modified programs being detected and executed | Physics | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.