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ISHII MASAHARU

Overview
  • Total Patents
    14
About

ISHII MASAHARU has a total of 14 patent applications. Its first patent ever was published in 1994. It filed its patents most often in Japan, EPO (European Patent Office) and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets computer technology, control and basic communication technologies are DASSAULT SYS OF AMERICA, DASSAULT SYSTEMES SOLIDWORKS and SOLIDWORKS CORP.

Patent filings in countries

World map showing ISHII MASAHARUs patent filings in countries
# Country Total Patents
#1 Japan 7
#2 EPO (European Patent Office) 2
#3 WIPO (World Intellectual Property Organization) 2
#4 Australia 1
#5 Canada 1
#6 Germany 1

Patent filings per year

Chart showing ISHII MASAHARUs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ishii Masaharu 14
#2 Umeno Takeshi 1

Latest patents

Publication Filing date Title
JP2010002786A Parameter generating device, key sharing system, public key cryptosystem, electronic signature system, sending key creating device, first key sharing apparatus, second key sharing apparatus, encrypting apparatus, decrypting apparatus, signature apparatus, authentication apparatus, parameter generating method, sending key creating method, key sharing method, encrypting method, decrypting method, key pair creating method, signature method, authentication method, and program
JP2008034938A Individual decryption key generating apparatus, individual decryption key generation method, program for the individual decryption key generating apparatus, electronic data decryption apparatus, program for the electronic data decryption apparatus, electronic data encryption/decryption system, and electronic data encryption system
JP2001273278A Device and method for optimization
JPH09106451A Geographical feature model preparing device and medium storing geographical feature model preparing program
JPH09185401A Device and method for optimization
JPH08129636A Device and method for topographical model generation
JPH07226656A Optimizing device and optimizing method