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Inventor

Ken Kawashima

Inventor
Tokyo, JP

Overview

4→
Patents
2005–2014
Patent span
Physics
Primary field (CPC G)

Patents· 4 as inventor

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

G06Fprimary
G06FElectric digital data processing60%
B41JTypewriters20%
Y10TTechnical subjects covered by former us classification20%
PatentTitleYear
8,745,588'Method for testing operation of software'20148,707,268'Testing operations of software'20148,479,165'System for testing operation of software'20136,966,630'Inkjet head'2005

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2005Patents assigned to RICOH PRINTING SYS LTD (1)· patent assignee history
2005Based in Hitachinaka, JP· patent location history
2013–2014Patents assigned to IBM (3)· patent assignee history
2013–2014Patents assigned to KAWASHIMA KEN (2)· patent assignee history
2013–2014Patents assigned to YANAGISAWA TAKASHI (2)· patent assignee history
2013–2014Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
IBM32013–2014
KAWASHIMA KENself22013–2014
YANAGISAWA TAKASHI22013–2014
RICOH PRINTING SYS LTD12005
Locations
LocationPatentsSpan
Tokyo, JP32013–2014
Hitachinaka, JP12005