Inventor · disambiguated record
Yoichi Ishiguro
Also filed as: ISHIGURO YOICHI
36 granted patents·770 citations·filing 1985–2000
98Inventor score
Top patents by PatentIndex Score
36 records- 0197US4969941AFurnace for heating glass preform for optical fiber and method for producing glass preformSUMITOMO ELECTRIC INDUSTRIES·Filed 1988·Granted Nov 13, 1990·75 cites·10 claims
- 0295US4822399AGlass preform for dispersion shifted single mode optical fiber and method for the production of the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1987·Granted Apr 18, 1989·63 cites·3 claims
- 0387US5217516AMethod of making optical glass articleSUMITOMO ELECTRIC INDUSTRIES·Filed 1991·Granted Jun 8, 1993·39 cites·6 claims
- 0487US5158587AMethod for producing glass preform for optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1991·Granted Oct 27, 1992·34 cites·5 claims
- 0584US6347537B1Method of drawing a twisted optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 2000·Granted Feb 19, 2002·12 cites·3 claims
- 0683US6076376AMethod of making an optical fiber having an imparted twistSUMITOMO ELECTRIC INDUSTRIES·Filed 1997·Granted Jun 20, 2000·29 cites·10 claims
- 0782US5114338AFurnace for heating highly pure quartz preform for optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1991·Granted May 19, 1992·32 cites·12 claims
- 0880US5055121AMethod for producing glass preform for optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1990·Granted Oct 8, 1991·31 cites·2 claims
- 0978US5320659AMethod of forming a carbon coated optical fiber with co-current reactant flowSUMITOMO ELECTRIC INDUSTRIES·Filed 1993·Granted Jun 14, 1994·34 cites·6 claims
- 1078US5018824AProcess for fusion-splicing hermetically coated optical fibersSUMITOMO ELECTRIC INDUSTRIES·Filed 1989·Granted May 28, 1991·38 cites·6 claims
- 1176US5053068AHigh pressure fluorine method for producing preform for optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1990·Granted Oct 1, 1991·22 cites·5 claims
- 1274US5364428AMethod for producing glass preform for optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1994·Granted Nov 15, 1994·24 cites·3 claims
- 1374US5145507AMethod for producing glass preform for optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1991·Granted Sep 8, 1992·38 cites·6 claims
- 1471US5208645AMethod and apparatus for optically measuring the thickness of a coatingSUMITOMO ELECTRIC INDUSTRIES·Filed 1991·Granted May 4, 1993·29 cites·18 claims
- 1568US5032079AFurnace for producing high purity quartz glass preformSUMITOMO ELECTRIC INDUSTRIES·Filed 1989·Granted Jul 16, 1991·17 cites·7 claims
- 1666US5281247AMethod for producing hermetic coated optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1992·Granted Jan 25, 1994·22 cites·3 claims
- 1766US5203899AMethod for producing glass preform for optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1992·Granted Apr 20, 1993·19 cites·3 claims
- 1862US5125066AFiber optical amplifierSUMITOMO ELECTRIC INDUSTRIES·Filed 1990·Granted Jun 23, 1992·21 cites·13 claims
- 1962US4846867AMethod for producing glass preform for optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1988·Granted Jul 11, 1989·21 cites·4 claims
- 2062US4765815AMethod for producing glass preform for optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1987·Granted Aug 23, 1988·13 cites·2 claims
- 2161US5627930AArrayed optical fiber coupler and method of manufacturing the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1994·Granted May 6, 1997·24 cites·13 claims
- 2261US5296011AMethod of manufacturing hermetic coating optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1992·Granted Mar 22, 1994·17 cites·30 claims
- 2360US5035484AMethod and apparatus for producing coated optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1989·Granted Jul 30, 1991·14 cites·2 claims
- 2454US5022904AMethod of making optical glass articleSUMITOMO ELECTRIC INDUSTRIES·Filed 1990·Granted Jun 11, 1991·16 cites·3 claims
- 2549US4664690AMethod for producing glass preform for optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1985·Granted May 12, 1987·9 cites·4 claims
- 2647US5163987AMethod for producing glass preform for optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1992·Granted Nov 17, 1992·11 cites·4 claims
- 2745US5235666AProduction of a hermetically coated optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1992·Granted Aug 10, 1993·11 cites·3 claims
- 2845US5157755AHermetically coated optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1991·Granted Oct 20, 1992·11 cites·3 claims
- 2943US4655808AMethod for producing glass preform for optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1985·Granted Apr 7, 1987·6 cites·7 claims
- 3041US5194080AApparatus for producing hermetic coated optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1991·Granted Mar 16, 1993·7 cites·6 claims
- 3140US5620494AMethod for manufacturing optical fiber couplerSUMITOMO ELECTRIC INDUSTRIES·Filed 1995·Granted Apr 15, 1997·8 cites·17 claims
- 3239US5265179AMethod of manufacturing fiber-optic collimatorsSUMITOMO ELECTRIC INDUSTRIES·Filed 1991·Granted Nov 23, 1993·8 cites·5 claims
- 3337US4781740AMethod for producing glass preform for optical fiberSUMIMOTO ELECTRIC IND LTD·Filed 1987·Granted Nov 1, 1988·4 cites·8 claims
- 3434US5338328AApparatus of manufacturing hermetic coating optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1993·Granted Aug 16, 1994·4 cites·19 claims
- 3532US5348564AMethod for manufacturing a hermetically coated optical fiberSUMITOMO ELECTRIC INDUSTRIES·Filed 1992·Granted Sep 20, 1994·4 cites·11 claims
- 3624US5357334ASpectroanalyzer correcting for deterioration of transmissibilitySUMITOMO ELECTRIC INDUSTRIES·Filed 1992·Granted Oct 18, 1994·3 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →