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Inventor

Tadashi Kaji

Inventor
Yokohama, JP

Overview

22→
Patents
2001–2016
Patent span
Electricity
Primary field (CPC H)

Patents· 22 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication65%
G06FElectric digital data processing23%
B08BCleaning in general3%
B65GTransport or storage devices, e.g. conveyors for loading or tipping, shop conveyor systems or pneumatic tube conveyors3%
G06KGraphical data reading3%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes3%
PatentTitleYear
9,372,995'Vulnerability countermeasure device and vulnerability countermeasure method'20168,516,245'Method, product and apparatus for accelerating public-key certificate validation'20138,402,524'ID bridge service system and method thereof'20138,238,555'Management server, communication apparatus and program implementing key allocation system for encrypted communication'20128,218,769'Encrypted communication system, communication status management server, encrypted communication method, and communication status management method'20128,205,074'Data communication method and data communication system'20128,095,676'Mediating system and method to establish communication session, allowing private information to be protected'20128,094,337'Device and system for assisting printer selection through a network'20128,081,758'Communication support server, communication support method, and communication support system'20118,041,822'Service network system and server device'20118,019,996'Method for encrypted communication with a computer system and system therefor'20118,010,793'Data communication method and system'20117,984,290'System and method for encrypted communication'20117,940,780'Data communication system enabling data communication between communication devices through a server'20117,720,227'Encryption method for SIP message and encrypted SIP communication system'20107,697,692'Cryptographic communication system and method'20107,657,035'Encryption communication method and system'20107,558,952'Method and apparatus for accelerating public-key certificate validation'20097,533,269'Digital-signed digital document exchange supporting method and information processor'20097,443,986'Key allocating method and key allocation system for encrypted communication'20087,392,380'Authentication and authorization infrastructure system with CRL issuance notification function'20086,327,658'Distributed object system and service supply method therein'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001–2016Patents assigned to HITACHI LTD (22)· patent assignee history
2001–2013Based in Fujisawa, JP· patent location history
2008–2013Based in Yokohama, JP· patent location history
2011–2016Patents assigned to KAJI TADASHI (9)· patent assignee history
2011–2013Patents assigned to FUJISHIRO TAKAHIRO (7)· patent assignee history
2011–2012Patents assigned to HOSHINO KAZUYOSHI (6)· patent assignee history
2011–2012Patents assigned to TAKATA OSAMU (5)· patent assignee history
2016Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD222001–2016
KAJI TADASHIself92011–2016
FUJISHIRO TAKAHIRO72011–2013
HOSHINO KAZUYOSHI62011–2012
TAKATA OSAMU52011–2012
Locations
LocationPatentsSpan
Yokohama, JP172008–2013
Fujisawa, JP42001–2013
Tokyo, JP12016