Toshio Danzuka
30Patents
10h-index
28Co-inventors
71Inventor score
Filing activity: Nov 4, 1985 → Dec 3, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5983673A | Silica glass article and manufacturing process therefor | Emerging Cross-Sectional Technologies | 33 | Expired |
| US4668263A | Method for producing glass preform for optical fiber | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5755849A | Method for elongating glass preform | Chemistry; Metallurgy | 18 | Expired |
| US4793842A | Method for producing glass preform for optical fiber | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5676725A | Method of manufacturing single-mode optical fiber | Chemistry; Metallurgy | 14 | Expired |
| US6324871A | Process for producing optical fiber preform | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6333283A | Silica glass article and manufacturing process therefor | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6535679B2 | Optical fiber and method of manufacturing the same | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4938789A | Raw material supplying device and process | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4978378A | Method for producing glass preform for optical fiber | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5788734A | Method for drawing glass preform for optical fiber | Chemistry; Metallurgy | 10 | Expired |
| US5470369A | Process for consolidation of porous preform for optical fiber | Chemistry; Metallurgy | 10 | Expired |
| US5296011A | Method of manufacturing hermetic coating optical fiber | Chemistry; Metallurgy | 9 | Expired |
| US5685889A | Method for flame abrasion of glass preform | Chemistry; Metallurgy | 8 | Expired |
| US5330548A | Method for producing glass preform for optical fiber | Chemistry; Metallurgy | 8 | Expired |
| US5674306A | Method and apparatus for drawing glass preform for optical fiber | Chemistry; Metallurgy | 8 | Expired |
| US4765815A | Method for producing glass preform for optical fiber | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5338327A | Method of flame abrasion of glass preform | Chemistry; Metallurgy | 5 | Expired |
| US5585137A | Apparatus and method of manufacturing fiber | Chemistry; Metallurgy | 5 | Expired |
| US5513983A | Apparatus for vitrifying soot preform for optical fiber | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6709997B2 | Silica glass article and manufacturing process therefor | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5236482A | Method for producing glass preform for optical fiber | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5693115A | Process for production of glass preform for optical fiber including consolidating in a furnace with a temperature gradient | Chemistry; Metallurgy | 3 | Expired |
| US5352261A | Apparatus for the production of hermetically coated optical fiber | Chemistry; Metallurgy | 3 | Expired |
| US5250097A | Method for producing glass soot deposit | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.