Inventor · disambiguated record
Koji Asahi
Also filed as: ASAHI KOJI
23 granted patents·1 pending application·583 citations·filing 1977–2024
96Inventor score
Top patents by PatentIndex Score
24 records- 0193US7350881B2Motorcycle with antilock brake systemSUZUKI CO LTD·Filed 2004·Granted Apr 1, 2008·39 cites·12 claims
- 0290US6195186B1Optical WDM ring networkNEC CORP·Filed 1997·Granted Feb 27, 2001·95 cites·21 claims
- 0388US6704508B1Optical crossconnect, optical network device, and connection status supervisory methodNEC CORP·Filed 2000·Granted Mar 9, 2004·36 cites·10 claims
- 0487US6222653B1Optical communication node and wavelength division multiplexing optical transmission device having ring structure comprising the optical communication nodesNEC CORP·Filed 1998·Granted Apr 24, 2001·83 cites·86 claims
- 0585US6023359AOptical wavelength-division multiplex transmission equipment with a ring structureNEC CORP·Filed 1997·Granted Feb 8, 2000·89 cites·21 claims
- 0683US11561118B2State specifying system, state specifying apparatus, state specifying method, and non-transitory computer readable mediumNEC CORP·Filed 2019·Granted Jan 24, 2023·2 cites·9 claims
- 0780US2024271969A1Utility pole deterioration detection system, utility pole deterioration detection apparatus, utility pole deterioration detection method, and non-transitory computer readable mediumNEC CORP·Filed 2024·Application pending·0 cites
- 0879US6619867B1Optical transmission systemNEC CORP·Filed 2000·Granted Sep 16, 2003·21 cites·6 claims
- 0977US11747175B2Utility pole location specifying system, utility pole location specifying apparatus, utility pole location specifying method, and non-transitory computer readable mediumNEC CORP·Filed 2019·Granted Sep 5, 2023·1 cites·15 claims
- 1076US6570685B1Node for optical communication and wavelength-division multiplexing transmission apparatus having a ring structure composed of the same nodesNEC CORP·Filed 1999·Granted May 27, 2003·48 cites·16 claims
- 1176US5563731AMonitor control signal receiving apparatus for optical fiber amplifierNEC CORP·Filed 1995·Granted Oct 8, 1996·43 cites·6 claims
- 1272US6532089B1Optical cross-connect, method of switching over optical path, optical ADM, and optical cross-connect network systemNEC CORP·Filed 1999·Granted Mar 11, 2003·40 cites·51 claims
- 1369US6595821B2Rotary anode for X-ray tube comprising an Mo-containing layer and a W-containing layer laminated to each other and method of producing the sameTOKYO TUNGSTEN KK·Filed 2001·Granted Jul 22, 2003·7 cites·6 claims
- 1466US11994417B2Utility pole deterioration detection system, utility pole deterioration detection apparatus, utility pole deterioration detection method, and non-transitory computer readable mediumNEC CORP·Filed 2019·Granted May 28, 2024·0 cites·11 claims
- 1563US6724953B2Optical cross-connect apparatus, and its signal monitoring methodNEC CORP·Filed 2001·Granted Apr 20, 2004·5 cites·16 claims
- 1662US6337886B1Bit rate-selective type optical receiver, optical regenerative repeater and automatic bit rate discriminating methodNEC CORP·Filed 1998·Granted Jan 8, 2002·48 cites·15 claims
- 1758US12078769B2Monitoring system, monitoring device, monitoring method, and non-transitory computer-readable mediumNEC CORP·Filed 2019·Granted Sep 3, 2024·0 cites·14 claims
- 1856US7339723B2Optical transmission system, optical repeating apparatus, and quality supervising methodNEC CORP·Filed 2005·Granted Mar 4, 2008·1 cites·46 claims
- 1954US5786591AOptical filter with transmission wavelength band controlling function and receiver using the optical filterNEC CORP·Filed 1997·Granted Jul 28, 1998·18 cites·14 claims
- 2052US12094210B2Monitoring system, monitoring device, monitoring method, and non-transitory computer-readable mediumNEC CORP·Filed 2020·Granted Sep 17, 2024·0 cites·13 claims
- 2144US7649162B2Optical feedback control unit, optical communication system, feedback control method, and recording medium for recording programOGUMA TAKEFUMI·Filed 2008·Granted Jan 19, 2010·0 cites·15 claims
- 2238US6034800ANXN light matrix switchNEC CORP·Filed 1997·Granted Mar 7, 2000·5 cites·4 claims
- 2328US4123329AProcess for producing L-lysine by fermentationKANEGAFUCHI CHEMICAL IND·Filed 1977·Granted Oct 31, 1978·1 cites·9 claims
- 2425US6233311B1Rotary anode for X-ray tube comprising an Mo-containing layer and a W-containing layer laminated to each other and method of producing the sameTOKYO TUNGSTERS CO LTD·Filed 1999·Granted May 15, 2001·1 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when Koji Asahi files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →