Inventor
HOSOYA TOSHIFUMI
JP33 patents
⚠️ This page may combine multiple inventors who share the name “HOSOYA TOSHIFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO ELECTRIC INDUSTRIES
30 patentsUS6901197B2May 31, 2005
Microstructured optical fiber
SUMITOMO ELECTRIC INDUSTRIES79 citations98
US6810188B1Oct 26, 2004
Coated optical fiber
SUMITOMO ELECTRIC INDUSTRIES64 citations96
US7043127B2May 9, 2006
Microstructured optical fiber
SUMITOMO ELECTRIC INDUSTRIES43 citations92
US5916495AJun 29, 1999
Plastic optical fiber preform, and process and apparatus for producing the same
SUMITOMO ELECTRIC INDUSTRIES24 citations92
US5851666ADec 22, 1998
Plastic optical fiber preform, and process and apparatus for producing the same
SUMITOMO ELECTRIC INDUSTRIES23 citations92
US5639512AJun 17, 1997
Plastic optical fiber preform, and process and apparatus for producing the same
SUMITOMO ELECTRIC INDUSTRIES34 citations92
US5614253AMar 25, 1997
Plastic optical fiber preform, and process and apparatus for producing the same
SUMITOMO ELECTRIC INDUSTRIES22 citations92
US5432873AJul 11, 1995
Optical switch
SUMITOMO ELECTRIC INDUSTRIES33 citations92
US5322228AJun 21, 1994
Method for screening optical fiber and apparatus for carrying out method
SUMITOMO ELECTRIC INDUSTRIES34 citations92
US5268984ADec 7, 1993
Coated optical fiber and method of producing the same
SUMITOMO ELECTRIC INDUSTRIES24 citations92
US5091984AFeb 25, 1992
Optical switch for use with optical fibers
SUMITOMO ELECTRIC INDUSTRIES24 citations92
US4875758AOct 24, 1989
Plastic-coated optical transmission fiber and an estimating method thereof
SUMITOMO ELECTRIC INDUSTRIES26 citations91
US7534051B2May 19, 2009
Optical fiber connector, optical fiber connecting method, and connector converter
SUMITOMO ELECTRIC INDUSTRIES16 citations84
US5472128ADec 5, 1995
Method and apparatus for sucking an optical fiber
SUMITOMO ELECTRIC INDUSTRIES14 citations82
US5441215AAug 15, 1995
Slitted winding wheel for optical fiber
SUMITOMO ELECTRIC INDUSTRIES17 citations82
US5108200AApr 28, 1992
Coupler-type optical switch and process for producing the same
SUMITOMO ELECTRIC INDUSTRIES21 citations82
US6907175B2Jun 14, 2005
Coated optical fiber, optical fiber tape core using it and optical fiber unit
SUMITOMO ELECTRIC INDUSTRIES9 citations74
US5891570AApr 6, 1999
Plastic optical fiber preform having a jacket layer
SUMITOMO ELECTRIC INDUSTRIES10 citations74
US5058987AOct 22, 1991
Coated optical fiber
SUMITOMO ELECTRIC INDUSTRIES7 citations74
US7410303B2Aug 12, 2008
Method and metal mold for manufacturing optical connector ferrule, optical connector ferrule manufactured by using the method, and optical connector and optical wiring system using the ferrule
SUMITOMO ELECTRIC INDUSTRIES8 citations73
US6898356B2May 24, 2005
Split type optical fiber tape core
SUMITOMO ELECTRIC INDUSTRIES7 citations73
US6597846B1Jul 22, 2003
Optical fiber
SUMITOMO ELECTRIC INDUSTRIES6 citations73
US9186078B2Nov 17, 2015
Optical fiber sheet
SUMITOMO ELECTRIC INDUSTRIES4 citations72
US7162126B2Jan 9, 2007
Optical module having a semiconductor optical device mounted on a bared cladding of an optical fiber
SUMITOMO ELECTRIC INDUSTRIES3 citations63
US6785455B2Aug 31, 2004
Dispersion compensation unit and method of producing the same
SUMITOMO ELECTRIC INDUSTRIES2 citations63
US7512307B2Mar 31, 2009
Method of making optical connector ferrule, die for making optical connector ferrule, optical connector ferrule made by this method, and optical connector and optical wiring system using the same
SUMITOMO ELECTRIC INDUSTRIES2 citations62
US7606453B2Oct 20, 2009
Ribbon-like optical fiber core assembly, method for producing the same, tape core assembly-containing connector, tape core assembly-containing optical fiber array, and optical wiring system
SUMITOMO ELECTRIC INDUSTRIES2 citations61
US8012321B2Sep 6, 2011
Biosensor chip, biosensor system and measuring instrument thereof
SUMITOMO ELECTRIC INDUSTRIES2 citations60
US12517697B2Jan 6, 2026
Communication assistance program, communication assistance method, communication assistance system, terminal device, and non-verbal expression program
SUMITOMO ELECTRIC INDUSTRIES0 citations57
US11960792B2Apr 16, 2024
Communication assistance program, communication assistance method, communication assistance system, terminal device, and non-verbal expression program
SUMITOMO ELECTRIC INDUSTRIES1 citations57