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Inventor

Tohru Nakahara

Inventor
Osaka, JP

Overview

17→
Patents
1986–2021
Patent span
Physics
Primary field (CPC G)

Patents· 17 as inventor

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

G06Fprimary
G06FElectric digital data processing29%
H04NPictorial communication, e.g. television17%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes14%
H04LTransmission of digital information, e.g. telegraphic communication11%
F15DFluid dynamics, i.e. methods or means for influencing the flow of gases or liquids6%
G21CNuclear reactors6%
H04WWireless communication networks6%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution6%
G11BInformation storage based on relative movement between record carrier and transducer3%
H04MTelephonic communication3%
PatentTitleYear
10,907,668Flow damper, pressure-accumulation and water-injection apparatus, and nuclear installation202110,900,508Flow damper, pressure-accumulation and water-injection apparatus, and nuclear installation20219,106,797'Content reproducing device and content reproducing method'20158,879,400'Mobile communication system, base station, cell coverage control method'20148,483,695'Wireless terminal, wireless controller, core-network device, and wireless base station'20138,260,714'Terminal apparatus and system thereof'20128,166,555'Content reproducing device and content preproducing method'20128,077,980'Image processing apparatus'20117,984,508'Contents using device, and contents using method'20117,940,935'Content playback apparatus, content playback method, computer program, key relay apparatus, and recording medium'20117,725,399'Content usage device and network system, and license information acquisition method'20107,715,564'License information conversion apparatus'20107,630,922'Content distribution management system and content distribution management method'20097,451,202'Information management system having a common management server for establishing secure communication among groups formed out of a plurality of terminals'20087,359,883'License management system, license management device, relay device and terminal device'20087,260,720'Device authentication system and method for determining whether a plurality of devices belong to a group'20074,571,461'Conference telephone apparatus'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–2021Based in Tokyo, JP· patent location history
2007–2015Based in Osaka, JP· patent location history
2008–2012Patents assigned to PANASONIC CORP (9)· patent assignee history
2011–2015Patents assigned to NAKAHARA TOHRU (6)· patent assignee history
2012–2015Patents assigned to OKAMOTO RYUICHI (3)· patent assignee history
2012–2015Patents assigned to IGARASHI MASAKI (2)· patent assignee history
2012Based in Kanagawa, JP· patent location history
2013–2014Patents assigned to FUJITSU LTD (2)· patent assignee history
2013Based in Kawasaki, JP· patent location history
2014Based in Yokohama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PANASONIC CORP92008–2012
NAKAHARA TOHRUself62011–2015
OKAMOTO RYUICHI32012–2015
FUJITSU LTD22013–2014
IGARASHI MASAKI22012–2015
Locations
LocationPatentsSpan
Osaka, JP112007–2015
Tokyo, JP31986–2021
Yokohama, JP12014
Kawasaki, JP12013
Kanagawa, JP12012