P

Inventor

OHTANI TOSHIHIRO

JP38 patents
⚠️ This page may combine multiple inventors who share the name “OHTANI TOSHIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

FUJITSU LTD

19 patents
US6532102B2Mar 11, 2003

Optical amplifier

FUJITSU LTD33 citations92
US6046839AApr 4, 2000

Polarizaiton scrambler

FUJITSU LTD19 citations92
US6033126AMar 7, 2000

Optical waveguide module having improved high-frequency characteristics

FUJITSU LTD23 citations92
US7813647B2Oct 12, 2010

Chromatic dispersion compensation control method and apparatus

FUJITSU LTD9 citations84
US7519300B2Apr 14, 2009

Optical output control method for use in optical transmission node and optical output control apparatus for use in the same

FUJITSU LTD8 citations84
US6238102B1May 29, 2001

Multiaxial optical coupler

FUJITSU LTD16 citations84
US7251072B2Jul 31, 2007

Optical transmission system

FUJITSU LTD13 citations82
US6674567B2Jan 6, 2004

Raman excitation control method and optical transmission system using the same

FUJITSU LTD9 citations74
US6621620B2Sep 16, 2003

Optical amplification system using Raman amplification

FUJITSU LTD8 citations74
US9544087B2Jan 10, 2017

Amplifying device, receiving device, and amplification method

FUJITSU LTD2 citations73
US9154227B2Oct 6, 2015

Port monitoring device and port monitoring method

FUJITSU LTD2 citations63
US7454108B2Nov 18, 2008

Multimode fiber transmission system

FUJITSU LTD2 citations63
US7324189B2Jan 29, 2008

Light power adjusting method, optical transmitter, and optical receiver

FUJITSU LTD5 citations63
US6819828B2Nov 16, 2004

Method and device for optical fiber transmission

FUJITSU LTD6 citations63
US7586672B2Sep 8, 2009

Optical transmission system

FUJITSU LTD2 citations61
US9614345B2Apr 4, 2017

Arrayed optical amplifier and optical transmission device

FUJITSU LTD0 citations52
US7911685B2Mar 22, 2011

Control of a light source providing excitation light

FUJITSU LTD0 citations52
US7142782B2Nov 28, 2006

Noise light elimination method, noise light elimination apparatus and optical transmission system, using stimulated brillouin scattering

FUJITSU LTD1 citations52
US9869824B2Jan 16, 2018

Optical adapter

FUJITSU LTD1 citations42

EBARA CORP

6 patents

OHTANI TOSHIHIRO

5 patents

SUZUKI YUICHI

2 patents

FUJITSU OPTICAL COMPONENTS LTD

2 patents

HOSHI RYUTA

1 patent

MURAKAMI MAKOTO

1 patent

YUKI MASAHIRO

1 patent

OTANI TOMOTAKA

1 patent