P

Inventor

KATAYAMA MAKOTO

JP69 patents
⚠️ This page may combine multiple inventors who share the name “KATAYAMA MAKOTO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SUMITOMO ELECTRIC INDUSTRIES

19 patents
US5996930ADec 7, 1999

Line dispenser and dispensing method

SUMITOMO ELECTRIC INDUSTRIES27 citations93
US7062120B2Jun 13, 2006

Optical device and movable reflector

SUMITOMO ELECTRIC INDUSTRIES11 citations84
US6801683B2Oct 5, 2004

Optical module, light divider/insertor and light transmission device

SUMITOMO ELECTRIC INDUSTRIES14 citations84
US6782185B2Aug 24, 2004

Optical variable attenuator and optical module

SUMITOMO ELECTRIC INDUSTRIES16 citations84
US6665466B2Dec 16, 2003

Optical multiplexer/demultiplexer

SUMITOMO ELECTRIC INDUSTRIES16 citations84
US6643431B2Nov 4, 2003

Optical device and control method thereof

SUMITOMO ELECTRIC INDUSTRIES13 citations84
US6659614B2Dec 9, 2003

Variable dispersion compensator and optical transmission system

SUMITOMO ELECTRIC INDUSTRIES13 citations80
US6892003B2May 10, 2005

Variable dispersion compensator and optical transmission system

SUMITOMO ELECTRIC INDUSTRIES11 citations74
US6825981B2Nov 30, 2004

Optical signal processor

SUMITOMO ELECTRIC INDUSTRIES7 citations74
US6633703B2Oct 14, 2003

Optical multiplexer/demultiplexer

SUMITOMO ELECTRIC INDUSTRIES10 citations74
US6574397B2Jun 3, 2003

Optical multiplexer/demultiplexer

SUMITOMO ELECTRIC INDUSTRIES8 citations74
US6868198B2Mar 15, 2005

Optical switch for switching between multiple main light emitters

SUMITOMO ELECTRIC INDUSTRIES8 citations73
US6782155B2Aug 24, 2004

Optical switch

SUMITOMO ELECTRIC INDUSTRIES9 citations73
US7110636B2Sep 19, 2006

Optical device control apparatus and optical device control method

SUMITOMO ELECTRIC INDUSTRIES2 citations63
US7106924B2Sep 12, 2006

Optical switching device and optical transmission system

SUMITOMO ELECTRIC INDUSTRIES2 citations63
US6473546B2Oct 29, 2002

Optical multiplexer/demultiplexer

SUMITOMO ELECTRIC INDUSTRIES2 citations63
US6424760B1Jul 23, 2002

Optical multiplexer/demultiplexer

SUMITOMO ELECTRIC INDUSTRIES6 citations63
US6993218B2Jan 31, 2006

Optical switch and optical switch array

SUMITOMO ELECTRIC INDUSTRIES4 citations62
US5617460AApr 1, 1997

Method of increasing index of refraction of silica glass

SUMITOMO ELECTRIC INDUSTRIES3 citations62

MATSUSHITA REFRIGERATION

11 patents

HONDA MOTOR CO LTD

8 patents

FUJI XEROX CO LTD

4 patents

PANASONIC CORP

4 patents

NINTENDO CO LTD

2 patents

KATAYAMA MAKOTO

1 patent

YAMAOKA MASAKAZU

1 patent

Showing the top 50 of 69 patents by PatentIndex Score.