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NIPPON TELEGRAPH & TELEPHONE CORP

Overview
  • Total Patents
    56
  • GoodIP Patent Rank
    29,923
  • Filing trend
    ⇩ 13.0%
About

NIPPON TELEGRAPH & TELEPHONE CORP has a total of 56 patent applications. It decreased the IP activity by 13.0%. Its first patent ever was published in 1990. It filed its patents most often in China, Australia and EPO (European Patent Office). Its main competitors in its focus markets telecommunications, computer technology and digital networks are KOREA ELECTRONICS TELECOMM, NTT DOCOMO INC JP and FUTUREWEI TECHNOLOGIES INC.

Patent filings in countries

World map showing NIPPON TELEGRAPH & TELEPHONE CORPs patent filings in countries
# Country Total Patents
#1 China 51
#2 Australia 4
#3 EPO (European Patent Office) 1

Patent filings per year

Chart showing NIPPON TELEGRAPH & TELEPHONE CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ikarashi Dai 6
#2 Kamamoto Yutaka 5
#3 Moriya Takehiro 5
#4 Hamada Koki 4
#5 Harada Noboru 4
#6 Yoshida Yui 3
#7 Kashiwagi Keiichiro 3
#8 Ishii Hisaharu 3
#9 Abeysekera Hirantha 3
#10 Tsukada Shingo 3

Latest patents

Publication Filing date Title
CN112020737A Secret aggregation totaling system, secret computing device, secret aggregation totaling method, and program
CN111566627A Information accumulation device, data processing system, and program
CN111052405A Avalanche photodiode and method for manufacturing the same
CN111033599A Negotiation system, negotiation device, program, and recording medium
CN110300955A The control method of communication processing apparatus, information processing unit and communication processing apparatus
CN109478928A Optical transmitter, photoreceiver, light data conveyer system, light transmitting method and method for optical reception
CN109219765A Optical connector
CN108701452A Audio model learning method, audio recognition method, audio model learning device, speech recognition equipment, audio model learning program and speech recognition program
CN108140336A Authentication secret code attachment device, authentication secret code addition method and program
CN108141006A Semiconductor laser apparatus
CN107534596A Stand side device and wavelength switching monitoring method
AU1611392A Multifiber optical connector plug with low reflection and low insertion loss