Inventor
KOYA KAZUO
JP24 patents
⚠️ This page may combine multiple inventors who share the name “KOYA KAZUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHINETSU CHEMICAL CO
18 patentsUS5404415AApr 4, 1995
Optical fiber coupler and method for preparing same
SHINETSU CHEMICAL CO141 citations96
US4650511AMar 17, 1987
Method for the preparation of a dehydrated quartz glass material for light transmission
SHINETSU CHEMICAL CO67 citations95
US5408309AApr 18, 1995
Apparatus and method for inspecting elliplicity and eccentricity of optical fiber preforms
SHINETSU CHEMICAL CO24 citations92
US5246475ASep 21, 1993
Method for preparing a fused silica glass body co-doped with a rare earth element and aluminum
SHINETSU CHEMICAL CO34 citations92
US4690504ASep 1, 1987
Quartz glass-made optical fibers and a method for the preparation thereof
SHINETSU CHEMICAL CO37 citations92
US5295219AMar 15, 1994
Supporting member for optical fiber coupler
SHINETSU CHEMICAL CO22 citations87
US6301412B1Oct 9, 2001
Apparatus and method for making multi-branching optical coupler
SHINETSU CHEMICAL CO15 citations80
US5406374AApr 11, 1995
Method for detecting bubbles and inclusions present in optical fiber preform and apparatus for detecting same
SHINETSU CHEMICAL CO18 citations74
US4874416AOct 17, 1989
Base material of optical fibers and a method for the preparation thereof
SHINETSU CHEMICAL CO12 citations73
US4772644ASep 20, 1988
Method for resin encapsulation of a semiconductor device and a resin composition therefor
SHINETSU CHEMICAL CO12 citations71
US4608071AAug 26, 1986
Method for reducing diameter of a glass rod or tube by drawing
SHINETSU CHEMICAL CO11 citations71
US6157758ADec 5, 2000
Grating optical fiber, and optical fiber base material suitable for grating
SHINETSU CHEMICAL CO13 citations70
US6549711B1Apr 15, 2003
Soliton pulse compression optical fiber and method for making soliton pulse compression optical fiber
SHINETSU CHEMICAL CO3 citations63
US5671309ASep 23, 1997
Wide-band optical fiber coupler and method for preparing the same
SHINETSU CHEMICAL CO4 citations61
US5440420AAug 8, 1995
Optical amplifier
SHINETSU CHEMICAL CO2 citations61
US5420950AMay 30, 1995
Wide wavelength range-optical fiber coupler and method for the preparation thereof
SHINETSU CHEMICAL CO6 citations61
US6600857B1Jul 29, 2003
Grating optical fiber, and optical fiber base material suitable for grating
SHINETSU CHEMICAL CO3 citations59
US5329602AJul 12, 1994
Optical fiber coupler
SHINETSU CHEMICAL CO1 citations51
HITACHI CABLE
3 patentsUS5712941AJan 27, 1998
Rare earth element-doped multiple-core optical fiber and method for fabricating the same
HITACHI CABLE42 citations92
US5706124AJan 6, 1998
Rare earth element-doped optical fiber amplifier
HITACHI CABLE20 citations92
US5570448AOct 29, 1996
Rare earth element-doped multiple-core optical fiber, method for fabricating the same, and optical amplifier using the same
HITACHI CABLE23 citations92