Yuichi Ohga
39Patents
11h-index
55Co-inventors
78Inventor score
Filing activity: Jun 28, 1990 → Aug 8, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5474589A | UV light-permeable glass and article comprising the same | Emerging Cross-Sectional Technologies | 257 | Expired |
| US5259856A | Method of producing glass preform in furnace for heating glass | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5320658A | Process of drawing optical fiber | Emerging Cross-Sectional Technologies | 22 | Expired |
| US6466721B1 | Dispersion compensating optical fiber and optical transmission line | Physics | 21 | Expired |
| US5755849A | Method for elongating glass preform | Chemistry; Metallurgy | 18 | Expired |
| US5306322A | Process for thermal treatment of glass fiber preform | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6490078B2 | Optical fiber for optical amplifier, optical fiber amplifier and optical fiber laser | Electricity | 13 | Expired |
| US6928840B1 | Optical fiber producing method | Chemistry; Metallurgy | 12 | Expired |
| US5446820A | Mode field diameter conversion optical fiber | Physics | 12 | Expired |
| US6550985B2 | Method of splicing two optical fibers | Physics | 12 | Expired |
| US6324871A | Process for producing optical fiber preform | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5417399A | Apparatus for supporting article in heating furnace | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6807823B2 | Fluorine-containing glass | Chemistry; Metallurgy | 10 | Expired |
| US5788734A | Method for drawing glass preform for optical fiber | Chemistry; Metallurgy | 10 | Expired |
| US5106401A | Process for thermal treatment of glass fiber preform | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5674306A | Method and apparatus for drawing glass preform for optical fiber | Chemistry; Metallurgy | 8 | Expired |
| US5674305A | Method for flame abrasion of glass preform | Chemistry; Metallurgy | 8 | Expired |
| US5685889A | Method for flame abrasion of glass preform | Chemistry; Metallurgy | 8 | Expired |
| US6851282B2 | Apparatus and method for making optical fiber | Chemistry; Metallurgy | 7 | Expired |
| US6748769B2 | Method of producing glass particles deposit | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7486862B2 | Optical fiber and manufacturing method thereof | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5763081A | Glass body for optical fiber method of selecting the same optical fiber and method of making thereof | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5338327A | Method of flame abrasion of glass preform | Chemistry; Metallurgy | 5 | Expired |
| US5513983A | Apparatus for vitrifying soot preform for optical fiber | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6725690B2 | Burner for synthesizing glass particles and method for producing porous glass body | Emerging Cross-Sectional Technologies | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.