P

Inventor

KYOTO MICHIHISA

JP36 patents
⚠️ This page may combine multiple inventors who share the name “KYOTO MICHIHISA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SUMITOMO ELECTRIC INDUSTRIES

31 patents
US5474589ADec 12, 1995

UV light-permeable glass and article comprising the same

SUMITOMO ELECTRIC INDUSTRIES277 citations99
US5306322AApr 26, 1994

Process for thermal treatment of glass fiber preform

SUMITOMO ELECTRIC INDUSTRIES44 citations96
US4969941ANov 13, 1990

Furnace for heating glass preform for optical fiber and method for producing glass preform

SUMITOMO ELECTRIC INDUSTRIES75 citations96
US5983673ANov 16, 1999

Silica glass article and manufacturing process therefor

SUMITOMO ELECTRIC INDUSTRIES54 citations95
US5249216ASep 28, 1993

Total reflection x-ray fluorescence apparatus

SUMITOMO ELECTRIC INDUSTRIES85 citations93
US5221309AJun 22, 1993

Method for producing glass preform for optical fiber

SUMITOMO ELECTRIC INDUSTRIES49 citations93
US4979971ADec 25, 1990

Method for producing glass preform for optical fiber

SUMITOMO ELECTRIC INDUSTRIES42 citations93
US6333283B1Dec 25, 2001

Silica glass article and manufacturing process therefor

SUMITOMO ELECTRIC INDUSTRIES25 citations92
US5364428ANov 15, 1994

Method for producing glass preform for optical fiber

SUMITOMO ELECTRIC INDUSTRIES24 citations92
US5217516AJun 8, 1993

Method of making optical glass article

SUMITOMO ELECTRIC INDUSTRIES39 citations92
US5158587AOct 27, 1992

Method for producing glass preform for optical fiber

SUMITOMO ELECTRIC INDUSTRIES34 citations92
US5145507ASep 8, 1992

Method for producing glass preform for optical fiber

SUMITOMO ELECTRIC INDUSTRIES38 citations92
US5053068AOct 1, 1991

High pressure fluorine method for producing preform for optical fiber

SUMITOMO ELECTRIC INDUSTRIES22 citations92
US4804247AFeb 14, 1989

Quartz glass optical fiber

SUMITOMO ELECTRIC INDUSTRIES28 citations92
US4586943AMay 6, 1986

Method for the production of glass preform for optical fibers

SUMITOMO ELECTRIC INDUSTRIES39 citations92
US5220591AJun 15, 1993

Total reflection X-ray fluorescence apparatus

SUMITOMO ELECTRIC INDUSTRIES38 citations90
US5106401AApr 21, 1992

Process for thermal treatment of glass fiber preform

SUMITOMO ELECTRIC INDUSTRIES18 citations82
US4693738ASep 15, 1987

Method for producing glass preform for optical fiber

SUMITOMO ELECTRIC INDUSTRIES22 citations81
US4610709ASep 9, 1986

Method for producing glass preform for optical fiber

SUMITOMO ELECTRIC INDUSTRIES24 citations81
US5163987ANov 17, 1992

Method for producing glass preform for optical fiber

SUMITOMO ELECTRIC INDUSTRIES11 citations74
US5022904AJun 11, 1991

Method of making optical glass article

SUMITOMO ELECTRIC INDUSTRIES16 citations74
US4902325AFeb 20, 1990

Method for producing glass preform for optical fiber

SUMITOMO ELECTRIC INDUSTRIES10 citations74
US4735475AApr 5, 1988

Optical fiber including chlorine content in cladding

SUMITOMO ELECTRIC INDUSTRIES13 citations74
US4664690AMay 12, 1987

Method for producing glass preform for optical fiber

SUMITOMO ELECTRIC INDUSTRIES9 citations74
US6709997B2Mar 23, 2004

Silica glass article and manufacturing process therefor

SUMITOMO ELECTRIC INDUSTRIES9 citations73
US5203899AApr 20, 1993

Method for producing glass preform for optical fiber

SUMITOMO ELECTRIC INDUSTRIES19 citations73
US4880452ANov 14, 1989

Method for producing glass preform for optical fiber containing fluorine in cladding

SUMITOMO ELECTRIC INDUSTRIES16 citations73
US6459403B1Oct 1, 2002

Traffic control system

SUMITOMO ELECTRIC INDUSTRIES11 citations71
US5137866AAug 11, 1992

Method for producing molded article of ceramic oxide superconductor

SUMITOMO ELECTRIC INDUSTRIES2 citations62
US4655808AApr 7, 1987

Method for producing glass preform for optical fiber

SUMITOMO ELECTRIC INDUSTRIES6 citations62
US4804393AFeb 14, 1989

Methods for producing optical fiber preform and optical fiber

SUMITOMO ELECTRIC INDUSTRIES1 citations51

NIPPON TELEGRAPH & TELEPHONE

4 patents

KAKIHARA YASUO

1 patent