LexDanaLexDanabeta
Inventor

Hiroko Ohkura

Inventor
Kanagawa, JP

Overview

22→
Patents
2004–2021
Patent span
Physics
Primary field (CPC G)

Patents· 22 as inventor

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

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer36%
Y10TTechnical subjects covered by former us classification15%
B41JTypewriters6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
B41MPrinting, duplicating, marking, or copying processes4%
C23CCoating metallic material4%
F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact4%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution4%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations2%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form2%
PatentTitleYear
11,130,343Wiping device, liquid discharging device, and wiping method202110,889,119Wiping device, wiping member, liquid discharging device, and wiping method202110,759,173Wiping member, wiping method, and wiping device20209,453,659'Reaction material formed body and heat storage and release unit'20169,243,179'Reaction material and chemical heat pump'20168,124,315'Optical recording medium'20128,075,974'Optical recording medium'20118,017,209'Optical recording medium'20117,800,993'Optical recording medium, recording method thereof and evaluation method of optical recording medium'20107,715,293'Optical recording medium and method of recording to the same'20107,626,915'Phase-change optical recording medium and recording and reproducing method thereof'20097,507,523'Optical information recording medium, method of manufacturing the optical information recording medium, and method of and apparatus for recording/reproducing optical information'20097,485,357'Optical recording medium'20097,438,965'Phase-change information recording medium, manufacturing method for the same, sputtering target, method for using the phase-change information recording medium and optical recording apparatus'20087,384,678'Optical recording medium and process for producing the same, sputtering target, using process of optical recording medium, and optical recording apparatus'20087,364,781'Optical recording medium, recording material, method of producing optical recording medium and optical recording, reading and rewriting method'20087,242,657'Phase change type optical recording medium and recording method therefor'20077,068,591'Information recording method and optical recording medium therefor'20066,963,527'Information recording method and optical recording medium therefor'20056,884,487'Optical recording medium, recording material, method of producing optical recording medium, and optical recording, reading and rewriting method'20056,846,611'Phase-change optical recording medium'20056,790,592'Phase-change optical information recording medium'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004–2010Patents assigned to RICOH KK (14)· patent assignee history
2004–2021Based in Kanagawa, JP· patent location history
2005–2011Based in Sagamihara, JP· patent location history
2008–2012Based in Yokohama, JP· patent location history
2011–2021Patents assigned to RICOH CO LTD (8)· patent assignee history
2011–2021Patents assigned to OHKURA HIROKO (6)· patent assignee history
2016Patents assigned to AMAN YASUTOMO (2)· patent assignee history
2020–2021Patents assigned to ATAKE Takumi (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH KK142004–2010
RICOH CO LTD82011–2021
OHKURA HIROKOself62011–2021
AMAN YASUTOMO22016
ATAKE Takumi22020–2021
Locations
LocationPatentsSpan
Kanagawa, JP102004–2021
Yokohama, JP72008–2012
Sagamihara, JP52005–2011