Inventor
Hidenobu Taniguchi
Inventor
Yokohama, JP
Overview
Patents· 4 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 communication33%
G06FElectric digital data processing17%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes17%
G07FCoin-freed or like apparatus17%
H04QSelecting17%
PatentTitleYear
7,841,001'Authentication information management method for device embedded with microprocessor unit'20107,110,548'Cryptographic communication method, encryption algorithm shared control method, encryption algorithm conversion method and network communication system'20065,051,992'Data link control method and system for integrated services digital network'19914,879,742'Charging system in data communication network'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–2010Patents assigned to HITACHI LTD (3)· patent assignee history
1989–2010Based in Yokohama, JP· patent location history
1991Based in Machida, JP· patent location history
2006Patents assigned to HATACHI KEIYO ENGINEERING CO L (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 3 | 1989–2010 |
| HATACHI KEIYO ENGINEERING CO L | 1 | 2006 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokohama, JP | 3 | 1989–2010 |
| Machida, JP | 1 | 1991 |