Kazuo Van
28Patents
9h-index
23Co-inventors
71Inventor score
Filing activity: Feb 27, 1987 → Aug 27, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5399461A | Optical disk for use in optical memory devices | Emerging Cross-Sectional Technologies | 77 | Expired |
| US5674583A | Optical recording medium and manufacturing method thereof | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5079113A | Photo-mask | Physics | 20 | Expired |
| US5087535A | Method of manufacturing photo-mask and photo-mask manufactured thereby | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5088086A | Optical recording medium and the method of recording, reading, and erasing information using it | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5981039A | Magnetic recording medium and a manufacturing method thereof as well as a photo-printing apparatus using such a magnetic recording medium | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5666345A | Optical memory medium with predetermined guide tracks and prepits | Physics | 11 | Expired |
| US5338646A | Optical memory device having an improved light reflection or optical memory layer | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5192644A | Optical memory device | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5459711A | Optical recording element and driving system | Physics | 9 | Expired |
| US5175079A | Optical memory device | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5438561A | Method for recording and reproducing information using an optical memory | Physics | 8 | Expired |
| US5170390A | Optical recording element and driving system | Physics | 7 | Expired |
| US5403683A | Photo-mask | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5457006A | Method of manufacturing photo-mask and photo-mask manufactured thereby | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5500850A | Optical disk with grooves and pits of different depths | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5058099A | Magneto-optical memory element | Physics | 6 | Expired |
| US5214636A | Optical recording element having a plurality of thin film filtering layers and optical recording element having an electrically conductive layer | Physics | 5 | Expired |
| US5989671A | Optical recording medium and manufacturing method thereof | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5754523A | Optical memory medium with preformed pit arrangement | Physics | 4 | Expired |
| US4754355A | Optical head | Physics | 3 | Expired |
| US5605779A | Optical memory medium | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5335220A | Optical recording element and driving system | Physics | 2 | Expired |
| US5081614A | Magneto-optical head utilizing central and peripheral portions of reflected light flux for different purposes | Physics | 1 | Expired |
| US5707754A | Magnetic recording medium and thermal recording printing device adopting the same | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.