Inventor · disambiguated record
Tetsuo Ishizaka
Also filed as: ISHIZAKA TETSUO
25 granted patents·4 pending applications·382 citations·filing 1991–2023
96Inventor score
Top patents by PatentIndex Score
29 records- 0195US11710914B2Optical moduleFUJITSU OPTICAL COMPONENTS LTD·Filed 2020·Granted Jul 25, 2023·16 cites·8 claims
- 0288US5515682APeltier control circuit and a peltier device structureFUJITSU LTD·Filed 1994·Granted May 14, 1996·69 cites·16 claims
- 0386US11415764B2Optical moduleFUJITSU OPTICAL COMPONENTS LTD·Filed 2020·Granted Aug 16, 2022·2 cites·9 claims
- 0482US10536217B2Optical transmission module and control method of optical transmission moduleFUJITSU OPTICAL COMPONENTS LTD·Filed 2017·Granted Jan 14, 2020·4 cites·6 claims
- 0582US6678428B2Optical modulatorFUJITSU LTD·Filed 2001·Granted Jan 13, 2004·22 cites·53 claims
- 0680US6741379B2Optical module having element for optical phase shift using electro-optic effectFUJITSU LTD·Filed 2002·Granted May 25, 2004·23 cites·22 claims
- 0778US7787717B2Optical waveguide deviceFUJITSU LTD·Filed 2008·Granted Aug 31, 2010·4 cites·9 claims
- 0877US5212699ATemperature-controlling laser diode assemblyFUJITSU LTD·Filed 1991·Granted May 18, 1993·60 cites·13 claims
- 0975US5751877ASemiconductor laser moduleFUJITSU LTD·Filed 1996·Granted May 12, 1998·47 cites·15 claims
- 1074US7386198B2Optical waveguide deviceFUJITSU LTD·Filed 2005·Granted Jun 10, 2008·3 cites·10 claims
- 1174US7280713B2Optical modulator, optical waveguide device and acousto-optic tunable filter apparatusFUJITSU LTD·Filed 2006·Granted Oct 9, 2007·3 cites·22 claims
- 1271US6594407B2Optical modulator of clock modulation typeFUJITSU LTD·Filed 2001·Granted Jul 15, 2003·11 cites·24 claims
- 1369US5703893ALaser diode moduleFUJITSU LTD·Filed 1995·Granted Dec 30, 1997·31 cites·7 claims
- 1468US7315676B2Optical modulator, optical waveguide device and acousto-optic tunable filter apparatusFUJITSU LTD·Filed 2006·Granted Jan 1, 2008·2 cites·26 claims
- 1564US6490303B1Laser diode moduleFUJITSU LTD·Filed 1996·Granted Dec 3, 2002·24 cites·3 claims
- 1663US7113677B2Optical modulator, optical waveguide device and acousto-optic tunable filter apparatusFUJITSU LTD·Filed 2003·Granted Sep 26, 2006·6 cites·33 claims
- 1761US6999223B2Optical modulatorFUJITSU LTD·Filed 2003·Granted Feb 14, 2006·6 cites·6 claims
- 1856US2023251421A1Photonic integrated circuit, and optical transmission moduleFUJITSU OPTICAL COMPONENTS LTD·Filed 2022·Application pending·0 cites
- 1954US5214660ALaser diode module and method for fabricating the sameFUJITSU LTD·Filed 1991·Granted May 25, 1993·15 cites·19 claims
- 2051US7289703B2Optical modulator, optical waveguide device and acousto-optic tunable filter apparatusFUJITSU LTD·Filed 2006·Granted Oct 30, 2007·0 cites·22 claims
- 2150US2023305328A1Optical device and optical receiving deviceFUJITSU OPTICAL COMPONENTS LTD·Filed 2023·Application pending·0 cites
- 2249US9515728B2Light source module and optical transceiverFUJITSU OPTICAL COMPONENTS LTD·Filed 2014·Granted Dec 6, 2016·0 cites·9 claims
- 2347US5150230ARod lens fixing method and fiber collimator manufactured therebyFUJITSU LTD·Filed 1991·Granted Sep 22, 1992·13 cites·10 claims
- 2446US5966938APeltier control circuit and a peltier device structureFUJITSU LTD·Filed 1996·Granted Oct 19, 1999·11 cites·3 claims
- 2542US5760946AOptical isolator, faraday rotator suitable for use in the same, and laser diode module incorporating the sameFUJITSU LTD·Filed 1997·Granted Jun 2, 1998·10 cites·10 claims
- 2641US7006715B2Optical modulator of clock modulation typeFUJITSU LTD·Filed 2003·Granted Feb 28, 2006·0 cites·13 claims
- 2740US2013194657A1Optical amplifier and manufacturing method of optical amplifierFUJITSU OPTICAL COMPONENTS LTD·Filed 2012·Application pending·0 cites
- 2834US8520710B2Optical transmission module and controlling method for optical transmission moduleISHIZAKA TETSUO·Filed 2011·Granted Aug 27, 2013·0 cites·6 claims
- 2934US2012069542A1Communication moduleISHIZAKA TETSUO·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →