Inventor · disambiguated record
Keiji Osaka
Also filed as: OSAKA KEIJI
14 granted patents·1 pending application·365 citations·filing 1986–2001
94Inventor score
Files withSUMITOMO ELECTRIC INDUSTRIES14
Top patents by PatentIndex Score
15 records- 0181US4750804AOptical fiber connecting jigSUMITOMO ELECTRIC INDUSTRIES·Filed 1986·Granted Jun 14, 1988·50 cites·5 claims
- 0278US5590227AOptical connector apparatusSUMITOMO ELECTRIC INDUSTRIES·Filed 1994·Granted Dec 31, 1996·43 cites·3 claims
- 0378US4812010AApparatus for arranging a plurality of coated optical fibers and collective fusion splicing method using the apparatusSUMITOMO ELECTRIC INDUSTRIES·Filed 1988·Granted Mar 14, 1989·41 cites·19 claims
- 0478US4715876AMethod of and apparatus for coupling multicore coated optical fibersSUMITOMO ELECTRIC INDUSTRIES·Filed 1986·Granted Dec 29, 1987·44 cites·12 claims
- 0572US4749252AMethod for splicing optical fibersSUMITOMO ELECTRIC INDUSTRIES·Filed 1987·Granted Jun 7, 1988·33 cites·11 claims
- 0665US5530782AIntermediate branching method for optical pathSUMITOMO ELECTRIC INDUSTRIES·Filed 1994·Granted Jun 25, 1996·29 cites·16 claims
- 0764US6190057B1Optical fiber ribbon fusion splicing apparatusSUMITOMO ELECTRIC INDUSTRIES·Filed 1998·Granted Feb 20, 2001·33 cites·8 claims
- 0863US7234881B2Molding apparatus for a reinforcement resin coating of glass optical fiber exposing portion of an optical fiber junction, method for molding reinforcement resin coating of a glass optical fiber exposing portion of an optical fiber junction, and optical fiber cableSUMITOMO ELECTRIC INDUSTRIES·Filed 2001·Granted Jun 26, 2007·8 cites·10 claims
- 0962US6553791B1Etching an optical fiber fusion spliceSUMITOMO ELECTRIC INDUSTRIES·Filed 2000·Granted Apr 29, 2003·8 cites·2 claims
- 1062US5524166ASeparating tool for multi-core ribbon fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1994·Granted Jun 4, 1996·26 cites·17 claims
- 1161US6287020B1Observation apparatus and fusion splicer for optical fibersSUMITOMO ELECTRIC INDUSTRIES·Filed 1998·Granted Sep 11, 2001·24 cites·11 claims
- 1242US6105480AApparatus for separating ribbon-coated multicore optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1997·Granted Aug 22, 2000·10 cites·22 claims
- 1341US5384878AMethod for fusion connecting optical fibers utilizing V-grooves with nonconducting layerSUMITOMO ELECTRIC INDUSTRIES·Filed 1992·Granted Jan 24, 1995·10 cites·3 claims
- 1438US2002015563A1Optical connecting articleFiled 2001·Application pending·0 cites
- 1537US5418872AOptical connector connecting apparatus and optical connector connecting methodSUMITOMO ELECTRIC INDUSTRIES·Filed 1994·Granted May 23, 1995·6 cites·5 claims
Join the waitlist — get patent alerts
Get an alert when Keiji Osaka files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →