Kazuyo Umezawa
55Patents
2h-index
17Co-inventors
53Inventor score
Filing activity: Dec 17, 2003 → Jan 10, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7512046B2 | Optical disk apparatus and method for controlling the same | Physics | 4 | Active |
| US7869339B2 | Multi-layer optical disc, information recording method and information reproducing method | Physics | 2 | Active |
| US7033659B2 | Optical information recording medium and method of recording and reproducing information on and from optical information recording medium | Emerging Cross-Sectional Technologies | 2 | Expired |
| US8149672B2 | Optical recording medium, information recording method, and information reproducing method | Physics | 1 | Active |
| US8142693B2 | Stamper and stamper evaluation method | Emerging Cross-Sectional Technologies | 1 | Active |
| US7914969B2 | Storage medium, reproducing method, and recording method | Emerging Cross-Sectional Technologies | 1 | Active |
| US8137894B2 | Storage medium, reproducing method, and recording method | Emerging Cross-Sectional Technologies | 1 | Active |
| US8437242B2 | Optical recording medium for writing data using multiple pulses | Physics | 1 | Active |
| US8142981B2 | Storage medium, reproducing method, and recording method | Physics | 1 | Active |
| US8139459B2 | Optical recording medium, information recording method, and information reproducing method | Physics | 1 | Active |
| US8154970B2 | Optical recording medium, information recording method, and information reproducing method | Physics | 1 | Active |
| US8551685B2 | Ultraviolet-curing resin material for pattern transfer and magnetic recording medium manufacturing method using the same | Physics | 1 | Active |
| US7995442B2 | Optical recording medium, information recording method, and information reproducing method | Physics | 1 | Active |
| US8154971B2 | Optical recording medium, information recording method, and information reproducing method | Physics | 1 | Active |
| US7960093B2 | Storage medium, reproducing method, and recording method | Emerging Cross-Sectional Technologies | 1 | Active |
| US8134899B2 | Optical recording medium, information recording method, and information reproducing method | Physics | 1 | Active |
| US7864654B2 | Optical recording medium, information recording method, and information reproducing method | Physics | 1 | Active |
| US8173029B2 | Magnetic recording medium manufacturing method | Chemistry; Metallurgy | 1 | Active |
| US8593930B2 | Optical recording medium, information recording method, and information reproducing method | Physics | 0 | Active |
| US8218416B2 | Multi-layer optical disc, information recording method and information reproducing method | Physics | 0 | Active |
| US8179763B2 | Optical disc, information recording method, and information reproducing method | Physics | 0 | Active |
| US8184517B2 | Optical recording medium, information recording method, and information reproducing method | Physics | 0 | Active |
| US8310913B2 | Optical recording medium capable of using wide ranges of linear velocity recording | Physics | 0 | Active |
| US8159920B2 | Optical recording medium, information recording method, and information reproducing method | Physics | 0 | Active |
| US8422353B2 | Optical recording medium for writing data using multiple pulses | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.