Inventor · Tsukuba, JP

Shin Sumida

19Patents
13h-index
59Co-inventors
81Inventor score

Filing activity: Nov 19, 1984 → Feb 23, 2004

Most-cited inventions

PatentTitleAreaCited byStatus
US6599027B2 Ferrule holding structure for optical connector component Physics 54 Expired
US7090409B2 Optical functioning component and optical connector having optical functioning component Physics 53 Expired
US6304687A Optical waveguide circuit, its manufacturing method and optical waveguide module having the optical waveguide circuit Physics 44 Expired
US4978188A Integrated optical device and method for manufacturing thereof Physics 29 Expired
US4900112A Integrated optical device and method for manufacturing thereof Physics 28 Expired
US5432877A Integrated optical circuit having a waveguide end of lens geometry, and method for making same Physics 22 Expired
US5064266A Circular channel waveguides and lenses formed from rectangular channel waveguides Physics 21 Expired
US5473721A Multi-mode optical circuit to couple light between various optical elements and method of fabricating same Physics 20 Expired
US6269210A Optical fiber Physics 17 Expired
US6565261B1 Optical fiber connector Physics 16 Expired
US4659215A Optical fiber test method and apparatus Physics 15 Expired
US6655433B1 Optical fiber ribbonizing apparatus Physics 14 Expired
US6913394B2 Optical connector plug, manufacturing method thereof and assembling tool Physics 13 Expired
US5710854A Multi-mode optical T-splitter and method of fabricating same Physics 12 Expired
US7398599B2 Device for removing coating on optical fiber Emerging Cross-Sectional Technologies 9 Active
US6585426B2 Optical module using wiring lead integrated resin substrate Electricity 8 Expired
US5261022A Optical waveguide of silica glass film on ceramic substrate Physics 4 Expired
US6985667B2 Optical fiber component for connection and manufacturing method thereof Physics 3 Expired
US6776535B2 One-piece construction of plug frame for optical connector component Physics 1 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.