Inventor · disambiguated record
Junya Kosaka
Also filed as: KOSAKA JUNYA
42 granted patents·4 pending applications·833 citations·filing 1996–2023
98Inventor score
Top patents by PatentIndex Score
46 records- 0197US6229641B1Optical amplifier, method of controlling the output light from the optical amplifier, optical transmission system and method of controlling an optical transmission path cross reference to related applicationHITACHI LTD·Filed 2000·Granted May 8, 2001·69 cites·11 claims
- 0297US6038062AOptical amplifier, method of controlling the output light from the optical amplifier, optical transmission system and method of controlling an optical transmission pathHITACHI LTD·Filed 1998·Granted Mar 14, 2000·110 cites·4 claims
- 0397US5675432AOptical amplification apparatusHITACHI LTD·Filed 1996·Granted Oct 7, 1997·128 cites·47 claims
- 0493US6094296AOptical amplification apparatusHITACHI LTD·Filed 1997·Granted Jul 25, 2000·74 cites·12 claims
- 0587US6233091B1Optical amplifier unit control methods, optical amplifier systems and systems which use the methods and amplifier systemsHITACHI LTD·Filed 2000·Granted May 15, 2001·20 cites·13 claims
- 0686US5986800AOptical amplification apparatusHITACHI LTD·Filed 1997·Granted Nov 16, 1999·45 cites·17 claims
- 0785US6256141B1Optical amplification apparatusHITACHI LTD·Filed 2000·Granted Jul 3, 2001·13 cites·8 claims
- 0884US6483630B2Optical amplifier, method of controlling the output light from the optical amplifier, optical transmission system and method of controlling an optical transmission path cross reference to related applicationHITACHI LTD·Filed 2001·Granted Nov 19, 2002·14 cites·2 claims
- 0980US6373622B1Optical amplification apparatusHITACHI LTD·Filed 2001·Granted Apr 16, 2002·9 cites·3 claims
- 1080US5864423AOptical amplifier, method of controlling the output light from the optical amplifier, optical transmission system and method of controlling an optical transmission pathHITACHI LTD·Filed 1996·Granted Jan 26, 1999·34 cites·4 claims
- 1178US6771854B2Optical transmission system and optical coupler/branching filterHITACHI LTD·Filed 2003·Granted Aug 3, 2004·11 cites·6 claims
- 1278US6580550B1Filter with variable transmission character, optical transmission equipment and method of optical transmissionHITACHI LTD·Filed 2000·Granted Jun 17, 2003·12 cites·4 claims
- 1378US6262835B1Optical amplifier unit control methods, optical amplifier systems and systems which use the methods and amplifier systemsHITACHI LTD·Filed 2000·Granted Jul 17, 2001·11 cites·23 claims
- 1476US6459527B1Optical amplifier apparatus and control method thereof, and optical transmission system using optical amplifier apparatusHITACHI LTD·Filed 2000·Granted Oct 1, 2002·11 cites·3 claims
- 1575US6314217B1Optical transmission device and optical transmission system employing the sameHITACHI LTD·Filed 2000·Granted Nov 6, 2001·10 cites·2 claims
- 1674US6671084B2Optical amplifierHITACHI LTD·Filed 2002·Granted Dec 30, 2003·7 cites·8 claims
- 1774US6525871B2Optical amplification apparatusHITACHI LTD·Filed 2002·Granted Feb 25, 2003·6 cites·8 claims
- 1874US6321002B1Optical amplifier, optical transmission equipment, optical transmission system, and method thereofHITACHI LTD·Filed 2000·Granted Nov 20, 2001·10 cites·9 claims
- 1973US6532103B1Optical fiber amplifier and optical transmission system using the sameHITACHI LTD·Filed 2001·Granted Mar 11, 2003·11 cites·1 claims
- 2071US6195480B1Optical transmission device and optical transmission system employing the sameHITACHI LTD·Filed 1998·Granted Feb 27, 2001·27 cites·20 claims
- 2171US6091539AOptical amplifier apparatus and control method thereof, and optical transmission system using optical amplifier apparatusHITACHI LTD·Filed 1998·Granted Jul 18, 2000·30 cites·13 claims
- 2269US6433925B1Optical fiber amplifier and optical transmission system using the sameHITACHI LTD·Filed 1998·Granted Aug 13, 2002·41 cites·7 claims
- 2369US6078422AOptical amplifier unit control methods optical amplifier systems and systems which use the methods and amplifier systemsHITACHI LTD·Filed 1997·Granted Jun 20, 2000·29 cites·3 claims
- 2467US6563978B2Optical transmission system and optical coupler/branching filterHITACHI LTD·Filed 2001·Granted May 13, 2003·8 cites·6 claims
- 2567US2024018459A1Analyzing apparatus, analyzing system, analyzing method, and computer-readable non-transitory storage mediumHITACHI HIGH TECH SOLUTIONS CORP·Filed 2023·Application pending·0 cites
- 2665US7526199B2Optical transmission equipment preventing malfunction in recovery from faultHITACHI COMM TECH LTD·Filed 2005·Granted Apr 28, 2009·3 cites·7 claims
- 2764US6577438B2Method and apparatus for monitoring and controlling gain tilt in an optical amplifierHITACHI LTD·Filed 2001·Granted Jun 10, 2003·7 cites·18 claims
- 2862US6674938B2Optical amplifier, optical transmission equipment, optical transmission system, and method thereofHITACHI LTD·Filed 2002·Granted Jan 6, 2004·4 cites·13 claims
- 2961US6839164B2Optical transmission equipment and supervisory system thereofHITACHI LTD·Filed 2001·Granted Jan 4, 2005·6 cites·20 claims
- 3061US6490387B2Optical transmission device and optical transmission system employing the sameHITACHI LTD·Filed 2001·Granted Dec 3, 2002·10 cites·4 claims
- 3159US6496617B2Optical amplifier, optical transmission equipment, optical transmission system, and method thereofHITACHI LTD·Filed 2001·Granted Dec 17, 2002·3 cites·4 claims
- 3251US6859308B2Optical amplifierHITACHI LTD·Filed 2003·Granted Feb 22, 2005·1 cites·5 claims
- 3349US5943162AOptical amplifier, optical amplifying method and optical transmission system using the optical amplifierHITACHI LTD·Filed 1998·Granted Aug 24, 1999·11 cites·13 claims
- 3448US6839161B2Optical amplification apparatusHITACHI LTD·Filed 2003·Granted Jan 4, 2005·0 cites·20 claims
- 3548US6400475B1Optical transmission system and optical communications deviceHITACHI LTD·Filed 1998·Granted Jun 4, 2002·12 cites·6 claims
- 3647US6867909B2Filter with variable transmission character, optical transmission equipment and method of optical transmissionHITACHI LTD·Filed 2003·Granted Mar 15, 2005·0 cites·8 claims
- 3747US6829408B2Optical amplifier, optical transmission equipment, optical transmission system, and method thereofHITACHI LTD·Filed 2003·Granted Dec 7, 2004·0 cites·10 claims
- 3847US2004197100A1Optical transmission system and optical coupler/branching filterHITACHI LTD·Filed 2004·Application pending·0 cites
- 3946US2023375930A1Photosensitive resin multilayer bodyASAHI CHEMICAL IND·Filed 2021·Application pending·0 cites
- 4045US6229936B1Optical amplifier, optical transmission equipment, optical transmission system, and method thereofHITACHI LTD·Filed 1999·Granted May 8, 2001·12 cites·20 claims
- 4145US5835260AOptical amplifier, optical amplifying method and optical transmission system using the optical amplifierHITACHI LTD·Filed 1997·Granted Nov 10, 1998·9 cites·34 claims
- 4244US6836587B2Optical transmission device and optical transmission system employing the sameHITACHI LTD·Filed 2003·Granted Dec 28, 2004·3 cites·8 claims
- 4344US2005036788A1Optical network system construction method and support systemFiled 2004·Application pending·0 cites
- 4442US6297902B1Light amplification medium control method, light amplification apparatus and system using the sameHITACHI LTD·Filed 1996·Granted Oct 2, 2001·10 cites·28 claims
- 4541US6671431B2Optical transmission device and optical transmission system employing the sameHITACHI LTD·Filed 2002·Granted Dec 30, 2003·2 cites·4 claims
- 4638US12353130B2Photosensitive resin composition and photosensitive resin multilayer bodyASAHI CHEMICAL IND·Filed 2020·Granted Jul 8, 2025·0 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →