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Inventor

Koichi Sumida

Inventor
Nara, JP

Overview

14→
Patents
1995–2014
Patent span
Electricity
Primary field (CPC H)

Patents· 14 as inventor

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

H04Nprimary
H04NPictorial communication, e.g. television41%
H04LTransmission of digital information, e.g. telegraphic communication18%
G01MTesting static or dynamic balance of machines or structures6%
G01NInvestigating or analysing materials by determining their chemical or physical properties6%
G03GElectrography6%
G06FElectric digital data processing6%
G06TImage data processing or generation, in general6%
H01HElectric switches6%
H02HEmergency protective circuit arrangements6%
PatentTitleYear
8,917,406'Image reading apparatus for determining whether a document contains a distinguishing pattern'20148,411,307'Image processing device and image forming device'20138,045,235'Method of adding specific image information and image forming apparatus'20118,035,864'Image processing apparatus'20118,031,700'PPP terminating equipment, network equipment and method of responding to LCP echo requirement'20117,916,344'Image detecting method'20117,860,303'Image processing apparatus, program, and recording medium'20107,701,611'Image processing apparatus'20107,664,104'PPP terminating equipment, network equipment and method of responding to LCP echo requirement'20107,568,055'Data processing apparatus for selecting either a PIO data transfer method or a DMA data transfer method'20097,251,244'PPP terminating equipment, network equipment and method of responding to LCP echo requirement'20076,934,141'Power supply device preventing inrush current'20055,844,124'Method and apparatus for measuring odorant concentration and oderant adding system'19985,430,293'Gas visualizing apparatus and method for detecting gas leakage from tanks or piping'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–1998Patents assigned to OSAKA GAS CO LTD (2)· patent assignee history
1995–2014Based in Osaka, JP· patent location history
2005–2014Patents assigned to SHARP KK (9)· patent assignee history
2005–2009Based in Tenri, JP· patent location history
2007–2011Patents assigned to JUNIPER NETWORKS INC (3)· patent assignee history
2007–2011Based in Tokyo, JP· patent location history
2010–2011Based in Nara, JP· patent location history
2013–2014Patents assigned to NAKAI YOSHIYUKI (2)· patent assignee history
2013–2014Patents assigned to SUMIDA KOICHI (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHARP KK92005–2014
JUNIPER NETWORKS INC32007–2011
NAKAI YOSHIYUKI22013–2014
OSAKA GAS CO LTD21995–1998
SUMIDA KOICHIself22013–2014
Locations
LocationPatentsSpan
Nara, JP52010–2011
Osaka, JP41995–2014
Tokyo, JP32007–2011
Tenri, JP22005–2009