Inventor
OHGA YUICHI
JP39 patents
⚠️ This page may combine multiple inventors who share the name “OHGA YUICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO ELECTRIC INDUSTRIES
38 patentsUS5474589ADec 12, 1995
UV light-permeable glass and article comprising the same
SUMITOMO ELECTRIC INDUSTRIES277 citations99
US5320658AJun 14, 1994
Process of drawing optical fiber
SUMITOMO ELECTRIC INDUSTRIES54 citations96
US5306322AApr 26, 1994
Process for thermal treatment of glass fiber preform
SUMITOMO ELECTRIC INDUSTRIES44 citations96
US5259856ANov 9, 1993
Method of producing glass preform in furnace for heating glass
SUMITOMO ELECTRIC INDUSTRIES55 citations96
US6550985B2Apr 22, 2003
Method of splicing two optical fibers
SUMITOMO ELECTRIC INDUSTRIES20 citations92
US6490078B2Dec 3, 2002
Optical fiber for optical amplifier, optical fiber amplifier and optical fiber laser
SUMITOMO ELECTRIC INDUSTRIES26 citations92
US6466721B1Oct 15, 2002
Dispersion compensating optical fiber and optical transmission line
SUMITOMO ELECTRIC INDUSTRIES38 citations92
US6324871B1Dec 4, 2001
Process for producing optical fiber preform
SUMITOMO ELECTRIC INDUSTRIES26 citations92
US5788734AAug 4, 1998
Method for drawing glass preform for optical fiber
SUMITOMO ELECTRIC INDUSTRIES24 citations92
US5755849AMay 26, 1998
Method for elongating glass preform
SUMITOMO ELECTRIC INDUSTRIES39 citations92
US5674305AOct 7, 1997
Method for flame abrasion of glass preform
SUMITOMO ELECTRIC INDUSTRIES19 citations92
US5446820AAug 29, 1995
Mode field diameter conversion optical fiber
SUMITOMO ELECTRIC INDUSTRIES21 citations92
US5674306AOct 7, 1997
Method and apparatus for drawing glass preform for optical fiber
SUMITOMO ELECTRIC INDUSTRIES20 citations91
US6928840B1Aug 16, 2005
Optical fiber producing method
SUMITOMO ELECTRIC INDUSTRIES18 citations84
US7486862B2Feb 3, 2009
Optical fiber and manufacturing method thereof
SUMITOMO ELECTRIC INDUSTRIES12 citations83
US5106401AApr 21, 1992
Process for thermal treatment of glass fiber preform
SUMITOMO ELECTRIC INDUSTRIES18 citations82
US6807823B2Oct 26, 2004
Fluorine-containing glass
SUMITOMO ELECTRIC INDUSTRIES12 citations74
US6050108AApr 18, 2000
Method for producing glass preform
SUMITOMO ELECTRIC INDUSTRIES8 citations74
US5763081AJun 9, 1998
Glass body for optical fiber method of selecting the same optical fiber and method of making thereof
SUMITOMO ELECTRIC INDUSTRIES11 citations74
US5693115ADec 2, 1997
Process for production of glass preform for optical fiber including consolidating in a furnace with a temperature gradient
SUMITOMO ELECTRIC INDUSTRIES10 citations74
US5685889ANov 11, 1997
Method for flame abrasion of glass preform
SUMITOMO ELECTRIC INDUSTRIES16 citations74
US5238479AAug 24, 1993
Method for producing porous glass preform for optical fiber
SUMITOMO ELECTRIC INDUSTRIES11 citations74
US6427044B1Jul 30, 2002
Optical fiber
SUMITOMO ELECTRIC INDUSTRIES11 citations73
US6301936B1Oct 16, 2001
Apparatus for manufacturing porous glass preform
SUMITOMO ELECTRIC INDUSTRIES12 citations73
US5338327AAug 16, 1994
Method of flame abrasion of glass preform
SUMITOMO ELECTRIC INDUSTRIES10 citations73
US6748769B2Jun 15, 2004
Method of producing glass particles deposit
SUMITOMO ELECTRIC INDUSTRIES9 citations72
US6725690B2Apr 27, 2004
Burner for synthesizing glass particles and method for producing porous glass body
SUMITOMO ELECTRIC INDUSTRIES11 citations72
US6851282B2Feb 8, 2005
Apparatus and method for making optical fiber
SUMITOMO ELECTRIC INDUSTRIES9 citations71
US6400878B1Jun 4, 2002
Optical fiber and method of making the same
SUMITOMO ELECTRIC INDUSTRIES12 citations71
US5513983AMay 7, 1996
Apparatus for vitrifying soot preform for optical fiber
SUMITOMO ELECTRIC INDUSTRIES16 citations71
US5417399AMay 23, 1995
Apparatus for supporting article in heating furnace
SUMITOMO ELECTRIC INDUSTRIES18 citations71
US6895783B2May 24, 2005
Method of producing optical fiber preform
SUMITOMO ELECTRIC INDUSTRIES8 citations68
US6705772B2Mar 16, 2004
Optical fiber splicing method and optical fiber
SUMITOMO ELECTRIC INDUSTRIES6 citations62
US7143608B2Dec 5, 2006
Burner for synthesizing glass particles and method for producing porous glass body
SUMITOMO ELECTRIC INDUSTRIES0 citations51
US6889529B2May 10, 2005
Method of manufacturing optical fiber preform
SUMITOMO ELECTRIC INDUSTRIES0 citations51
US6845636B2Jan 25, 2005
Apparatus for dehydrating and consolidating an optical fiber preform and method of the same
SUMITOMO ELECTRIC INDUSTRIES1 citations51
US6837077B2Jan 4, 2005
Method for producing soot body
SUMITOMO ELECTRIC INDUSTRIES1 citations50
US7194171B2Mar 20, 2007
Dispersion compensating optical fiber, dispersion compensating device, optical transmission line and optical transmission system
SUMITOMO ELECTRIC INDUSTRIES0 citations41