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SAKAMURA TAKESHI

Overview
  • Total Patents
    34
About

SAKAMURA TAKESHI has a total of 34 patent applications. Its first patent ever was published in 1987. It filed its patents most often in Japan and China. Its main competitors in its focus markets control, it methods for management and computer technology are SAKAMURA KEN, GORDONOMICS LTD and GEOPRI LLC.

Patent filings in countries

World map showing SAKAMURA TAKESHIs patent filings in countries
# Country Total Patents
#1 Japan 33
#2 China 1

Patent filings per year

Chart showing SAKAMURA TAKESHIs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sakamura Takeshi 33
#2 Koshizuka Noboru 10
#3 Hongo Setsuyuki 10
#4 Ishii Kazuhiko 10
#5 Mori Kensaku 10
#6 Aono Hiroshi 10
#7 Tsurumi Kanehisa 6
#8 Tamai Kazuji 5
#9 Nakamura Nobuharu 5
#10 Yoshida Toyohiko 4

Latest patents

Publication Filing date Title
JP2004015665A Authentication method and ic card in electronic ticket distribution system
JP2004013748A Autonomous ic card
JP2004013731A Management system for connection information of ic card, management method for connection information, ic card and server
JP2004015667A Inter ic card encryption communication method, inter ic card encryption communication in electronic ticket distribution system, and ic card
JP2004013744A Issuing system for digital content and issuing method
JP2004013735A Management system for connection information of ic card, management method for connection information, ic card, server and terminal device
JP2004013438A Electronic value data communication method, communication system, ic card, and portable terminal
JP2003337894A Portable terminal, distribution server, provision server, system and method for distributing electronic book
JP2003337912A Mobile terminal, distribution server, providing server, and system and method for electronic book distribution
JP2003337887A Communication terminal, server, system and method for charging electronic value
JP2000076067A Data processor
JPH10240523A Data processor
JPH09288564A Data processor
JPH03201743A Method for sharing clock in common in ring type lan
JPH03201742A Token ring type lan
JPH03201744A Management method for communication station
JPH03201746A Priority setting method in token ring type lan
JPH03201745A Ring type lan
JPH0332247A Ring type communication system
JPH02116947A Data transfer system