P

Inventor

ONO TAKATOSHI

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

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

14 patents
US6263081B1Jul 17, 2001

Elliptic curve calculation apparatus capable of calculating multiples at high speed

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD55 citations96
US6868404B1Mar 15, 2005

Digital data recording device, digital data memory device, and digital data utilizing device for converting management information which contains restrictive information using a different key in each management information send/receive session

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD47 citations93
US6567832B1May 20, 2003

Device, method, and storage medium for exponentiation and elliptic curve exponentiation

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD32 citations93
US6963644B1Nov 8, 2005

Multi-word arithmetic device for faster computation of cryptosystem calculations

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD32 citations92
US7401232B2Jul 15, 2008

Content playback apparatus method and program and key management apparatus and system

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD33 citations91
US6523115B1Feb 18, 2003

Encryption device, decryption device, encryption method, decryption method, cryptography system, computer-readable recording medium storing encryption program, and computer-readable recording medium storing decryption program which perform error diagnosis

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD49 citations91
US6496930B1Dec 17, 2002

Message receiving apparatus and message transmitting apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD29 citations91
US6366940B1Apr 2, 2002

High-speed modular multiplication apparatus achieved in small circuit

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD28 citations89
US7388957B2Jun 17, 2008

Elliptic curve exponentiation apparatus that can counter differential fault attack, and information security apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations84
US7167559B2Jan 23, 2007

Information security device, exponentiation device, modular exponentiation device, and elliptic curve exponentiation device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations84
US7098895B2Aug 29, 2006

Optical trackball device and electronic apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations74
US7076668B1Jul 11, 2006

Data usage controlling apparatus that prevents the unauthorized use of main data by updating a type 1 and a type 2 key used for protecting the main data in accordance with usage of the main data

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations74
US7236158B2Jun 26, 2007

Trackball and in-vehicle device controller using the trackball

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations73
US7130422B2Oct 31, 2006

Information security device, prime number generation device, and prime number generation method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations63

DISCO CO LTD

5 patents

BRIDGESTONE CORP

4 patents

ONO TAKATOSHI

4 patents

BROTHER IND LTD

4 patents

DISCO ABRASIVE SYSTEMS LTD

3 patents

TOSHIBA KK

2 patents

DISCO KABUSHIKI KAISHA

1 patent

IKUSHIMA KIMIYA

1 patent

PANASONIC CORP

1 patent

EDA HAJIME

1 patent

TOMONO KEITARO

1 patent

PANASONIC IP MAN CO LTD

1 patent

IKEDA TAKUO

1 patent