Inventor
ISHIZAKA TETSUO
JP26 patents
⚠️ This page may combine multiple inventors who share the name “ISHIZAKA TETSUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
21 patentsUS5515682AMay 14, 1996
Peltier control circuit and a peltier device structure
FUJITSU LTD69 citations95
US5212699AMay 18, 1993
Temperature-controlling laser diode assembly
FUJITSU LTD60 citations95
US6678428B2Jan 13, 2004
Optical modulator
FUJITSU LTD22 citations92
US6741379B2May 25, 2004
Optical module having element for optical phase shift using electro-optic effect
FUJITSU LTD23 citations91
US6490303B1Dec 3, 2002
Laser diode module
FUJITSU LTD24 citations91
US5751877AMay 12, 1998
Semiconductor laser module
FUJITSU LTD47 citations91
US5703893ADec 30, 1997
Laser diode module
FUJITSU LTD31 citations91
US6999223B2Feb 14, 2006
Optical modulator
FUJITSU LTD6 citations74
US6594407B2Jul 15, 2003
Optical modulator of clock modulation type
FUJITSU LTD11 citations74
US5966938AOct 19, 1999
Peltier control circuit and a peltier device structure
FUJITSU LTD11 citations73
US5214660AMay 25, 1993
Laser diode module and method for fabricating the same
FUJITSU LTD15 citations73
US5150230ASep 22, 1992
Rod lens fixing method and fiber collimator manufactured thereby
FUJITSU LTD13 citations73
US7113677B2Sep 26, 2006
Optical modulator, optical waveguide device and acousto-optic tunable filter apparatus
FUJITSU LTD6 citations72
US5760946AJun 2, 1998
Optical isolator, faraday rotator suitable for use in the same, and laser diode module incorporating the same
FUJITSU LTD10 citations72
US6023481AFeb 8, 2000
Module having Peltier element
FUJITSU LTD9 citations69
US7787717B2Aug 31, 2010
Optical waveguide device
FUJITSU LTD4 citations63
US7386198B2Jun 10, 2008
Optical waveguide device
FUJITSU LTD3 citations63
US7315676B2Jan 1, 2008
Optical modulator, optical waveguide device and acousto-optic tunable filter apparatus
FUJITSU LTD2 citations61
US7280713B2Oct 9, 2007
Optical modulator, optical waveguide device and acousto-optic tunable filter apparatus
FUJITSU LTD3 citations61
US7006715B2Feb 28, 2006
Optical modulator of clock modulation type
FUJITSU LTD0 citations52
US7289703B2Oct 30, 2007
Optical modulator, optical waveguide device and acousto-optic tunable filter apparatus
FUJITSU LTD0 citations50
FUJITSU OPTICAL COMPONENTS LTD
4 patentsUS11710914B2Jul 25, 2023
Optical module
FUJITSU OPTICAL COMPONENTS LTD16 citations82
US10536217B2Jan 14, 2020
Optical transmission module and control method of optical transmission module
FUJITSU OPTICAL COMPONENTS LTD4 citations73
US11415764B2Aug 16, 2022
Optical module
FUJITSU OPTICAL COMPONENTS LTD2 citations68
US9515728B2Dec 6, 2016
Light source module and optical transceiver
FUJITSU OPTICAL COMPONENTS LTD0 citations52