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Inventor

Kenji Ohshima

Inventor
Ibaraki, JP

Overview

14→
Patents
1992–2017
Patent span
Performing operations
Primary field (CPC B)

Patents· 14 as inventor

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

B41Cprimary
B41CProcesses for the manufacture or reproduction of printing surfaces17%
Y10TTechnical subjects covered by former us classification17%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form8%
B41JTypewriters8%
A61FFilters implantable into blood vessels6%
B05DProcesses for applying fluent materials to surfaces, in general6%
F16LPipes6%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems6%
H05KPrinted circuits6%
B05CApparatus for applying fluent materials to surfaces, in general3%
PatentTitleYear
9,596,782'Power converter with cooling board'20179,350,228'Power conversion apparatus'20167,037,298'Disposable absorbent article having a raised circumferential bank'20066,807,904'Method and apparatus for making heat-sensitive stencil and heat-sensitive stencil material'20046,758,138'Heat sensitive stencil material'20046,755,126'Apparatus for making a heat-sensitive stencil'20046,629,495'Method of and apparatus for making heat-sensitive stencil and heat-sensitive stencil material'20036,571,700'Method for making a heat-sensitive stencil'20036,571,699'Method of thermally perforating a heat sensitive stencil'20035,730,738'Absorbent article with angled band structural elastic-like film cuffs'19985,590,689'Method for lining the internal surface of a pipe'19975,402,395'Driving device for a rotary member'19955,161,130'Clock with openable dial pieces'19925,089,297'Method for repairing interior portions of a pipeline'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–1997Patents assigned to HAKKO CO (2)· patent assignee history
1992–1995Patents assigned to SEIKOSHA KK (2)· patent assignee history
1992–1995Based in Tokyo, JP· patent location history
1998–2006Patents assigned to PROCTER & GAMBLE (2)· patent assignee history
2003–2004Patents assigned to RISO KAGAKU CORP (6)· patent assignee history
2003–2004Based in Ibaraki, JP· patent location history
2003–2004Based in Amimachi, JP· patent location history
2006Based in Kobe, JP· patent location history
2016–2017Patents assigned to HITACHI AUTOMOTIVE SYSTEMS LTD (2)· patent assignee history
2016–2017Based in Hitachinaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RISO KAGAKU CORP62003–2004
HAKKO CO21992–1997
HITACHI AUTOMOTIVE SYSTEMS LTD22016–2017
PROCTER & GAMBLE21998–2006
SEIKOSHA KK21992–1995
Locations
LocationPatentsSpan
Ibaraki, JP32003–2004
Amimachi, JP32003–2004
Hitachinaka, JP22016–2017
Tokyo, JP21992–1995
Kobe, JP12006