Inventor · disambiguated record
Kazunori Katayama
Also filed as: KATAYAMA KAZUNORI
14 granted patents·33 pending applications·88 citations·filing 1986–2022
88Inventor score
Top patents by PatentIndex Score
47 records- 0188US4721297ASheet feederTOKYO JUKI INDUSTRIAL CO LTD·Filed 1986·Granted Jan 26, 1988·38 cites·4 claims
- 0283US11422301B2Optical fiber cableNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Aug 23, 2022·4 cites·8 claims
- 0380US7010718B2Method and system for supporting network system troubleshootingHITACHI LTD·Filed 2002·Granted Mar 7, 2006·34 cites·20 claims
- 0471US11474303B2Optical connector ferrule, sleeve, and method for manufacturing ferrule memberNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Oct 18, 2022·1 cites·7 claims
- 0562US5839679ABobbin thread winding apparatusJUKI KK·Filed 1995·Granted Nov 24, 1998·9 cites·17 claims
- 0658US12474527B2Optical coupling device and optical coupling systemNTT INC·Filed 2020·Granted Nov 18, 2025·0 cites·10 claims
- 0758US12375839B2Surveillance control device and optical power supply systemNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Jul 29, 2025·0 cites·8 claims
- 0855US2025018518A1Device and method for manufacturing photosynthesis and demultiplexing circuitNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 0953US11543612B2Connector plug, connector insertion method, and a connector removal methodNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jan 3, 2023·0 cites·7 claims
- 1052US2024230464A1Optical monitor deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 1152US2024230461A1Optical monitor deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 1250US2025317201A1Remote optical fiber switching node and its monitoring methodNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 1350US2025310002A1Optical communication system, optical node, and optical power supply methodNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 1450US2025306288A1Optical fiber switching methodNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 1549US11740414B2Multifiber optical connector and optical cable connection methodNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Aug 29, 2023·0 cites·7 claims
- 1649US8718467B2Method of switching optical path, and apparatus thereofTSUJIMURA TAKESHI·Filed 2009·Granted May 6, 2014·1 cites·18 claims
- 1749US2024329325A1Optical switch and optical switch systemNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 1849US2025189730A1Optical coupling part and optical switchNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 1949US2025130371A1Optical switch and optical switch systemNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 2049US2024393540A1Optical connection moduleNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 2149US2025172765A1Cylindrical multi-core ferrule and optical connectorNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 2249US2024280758A1Optical node, rotation angle deviation compensation system and rotation angle deviation compensation methodNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 2348US11949220B2Cable blocksNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Apr 2, 2024·0 cites·7 claims
- 2448US2024264381A1Optical switch and optical switch systemNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 2548US2025334745A1Photosynthetic demultiplexing circuit and branch ratio adjustment methodNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 2648US2024272375A1Optical connector plug, optical connector and manufacturing method of optical waveguideNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 2748US2025168538A1Optical path switching node, optical fiber network and test method for the optical fiber networkNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 2848US2025070868A1Optical nodes, remote control systems, and remote control methodsNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 2948US2024411089A1Optical connection device and optical switch using itNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 3047US2024201448A1Optical connector and its manufacturing methodNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 3147US2024201450A1Optical connector cleaning toolNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 3247US2022349609A1Air conditioning system and air conditioning control methodNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Application pending·0 cites
- 3347US2025138246A1Ferrule rotary mating part and optical switchNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 3446US12314649B2Cable route setting methodNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted May 27, 2025·0 cites·12 claims
- 3546US2025133315A1Optical fiber switching node deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 3646US2025317217A1Optical communication system, optical node, and optical power supply methodNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 3746US2025293769A1Optical power supply system and failure location detection methodNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 3846US2024134127A1Optical switchNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 3945US2024094477A1Optical coupling part and optical switchNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 4045US2024061188A1Cylindrical multi-core ferrule and optical connectorNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 4145US2025198708A1Heat conversion system and heat conversion methodNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 4245US2023280536A1Optical coupling device and optical coupling systemNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Application pending·0 cites
- 4344US11360281B2Optical fiber cable, and device and method for manufacturing optical fiber cableNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jun 14, 2022·0 cites·6 claims
- 4444US2025300730A1Systems and methods for detecting optical switch anomaly in optical nodeNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 4544US2022318448A1Cable route design methodNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Application pending·0 cites
- 4643US2024027692A1Optical connector cleaning toolNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Application pending·0 cites
- 4732US6053119ALower thread automatic supply device for a sewing machineJUKI KK·Filed 1998·Granted Apr 25, 2000·1 cites·23 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →