P

Inventor

HASEBE TAKAYUKI

JP64 patents
⚠️ This page may combine multiple inventors who share the name “HASEBE TAKAYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

FUJITSU LTD

35 patents
US5796824AAug 18, 1998

Storage medium for preventing an irregular use by a third party

FUJITSU LTD163 citations99
US5737413AApr 7, 1998

Information distribution system wherein storage medium storing ciphered information is distributed

FUJITSU LTD180 citations99
US5555304ASep 10, 1996

Storage medium for preventing an illegal use by a third party

FUJITSU LTD109 citations99
US5539825AJul 23, 1996

Electronic cashless transaction system

FUJITSU LTD327 citations99
US5428684AJun 27, 1995

Electronic cashless transaction system

FUJITSU LTD275 citations99
US5392351AFeb 21, 1995

Electronic data protection system

FUJITSU LTD373 citations99
US5935243AAug 10, 1999

Licensee notification system

FUJITSU LTD95 citations98
US5621794AApr 15, 1997

Moving-picture encipherment method and system, and enciphered moving-picture decipherment method and system

FUJITSU LTD130 citations98
US6898708B2May 24, 2005

Device for reproducing data

FUJITSU LTD123 citations97
US5838791ANov 17, 1998

Encoder and decoder

FUJITSU LTD62 citations96
US5832083ANov 3, 1998

Method and device for utilizing data content

FUJITSU LTD73 citations96
US5761651AJun 2, 1998

Software charging system and software data utilization permitting device

FUJITSU LTD84 citations96
US5584022ADec 10, 1996

Enciphered file sharing method

FUJITSU LTD66 citations96
US5499299AMar 12, 1996

Modular arithmetic operation system

FUJITSU LTD101 citations96
US5440631AAug 8, 1995

Information distribution system wherein storage medium storing ciphered information is distributed

FUJITSU LTD55 citations96
US5325433AJun 28, 1994

Encryption communication system

FUJITSU LTD64 citations96
US5761308AJun 2, 1998

System for refunding payment for software

FUJITSU LTD74 citations95
US7272720B2Sep 18, 2007

Date-and-time management device and signature generation apparatus with date-and-time management function

FUJITSU LTD20 citations93
US6385726B1May 7, 2002

Software license protection via cryptography

FUJITSU LTD29 citations93
US8051302B1Nov 1, 2011

Data distributing system and recording medium used for it

FUJITSU LTD21 citations92
US7383446B1Jun 3, 2008

Recording device

FUJITSU LTD31 citations92
US7013392B1Mar 14, 2006

File processing unit

FUJITSU LTD24 citations92
US7000114B1Feb 14, 2006

Apparatus to create and/or verify digital signatures having a secure time element and an identifier of the apparatus

FUJITSU LTD40 citations92
US5917908AJun 29, 1999

File protection system, software utilization system using the file protection system and storage medium used in the software utilization system

FUJITSU LTD44 citations92
US7191155B2Mar 13, 2007

License transmitting and distributing system under offline environment and method thereof

FUJITSU LTD39 citations91
US7512801B1Mar 31, 2009

Authentication system, authentication method, signing apparatus, signing method, certifying apparatus, certifying method, and a computer-readable recording medium with a program making a computer execute the method recording therein

FUJITSU LTD11 citations84
US6687835B1Feb 3, 2004

Command authorization method

FUJITSU LTD16 citations84
US5953416ASep 14, 1999

Data processing apparatus

FUJITSU LTD17 citations84
US6434623B1Aug 13, 2002

Data transmission and data receiving apparatus that obtains file differences during transmission

FUJITSU LTD16 citations82
US10298578B2May 21, 2019

Communication relay device, communication network, and communication relay method

FUJITSU LTD2 citations73
US10567401B2Feb 18, 2020

Device and method for detecting attack in network

FUJITSU LTD2 citations72
US8040220B2Oct 18, 2011

Method and apparatus for managing tag information, and computer product

FUJITSU LTD4 citations63
US7325247B2Jan 29, 2008

Information management method using a recording medium with a secure area and a user-use area

FUJITSU LTD4 citations63
USRE39802EAug 28, 2007

Storage medium for preventing an irregular use by a third party

FUJITSU LTD2 citations63
US7747538B2Jun 29, 2010

Memory card

FUJITSU LTD5 citations62

SANYO ELECTRIC CO

10 patents

NITTOKU CO LTD

2 patents

HITACHI LTD

1 patent

TOKUTANI TAKASHI

1 patent

SAKAI ATSUSHI

1 patent

Showing the top 50 of 64 patents by PatentIndex Score.