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Inventor

Yasuo Ohama

Inventor
Fukui, JP

Overview

15→
Patents
2004–2013
Patent span
Chemistry
Primary field (CPC C)

Patents· 15 as inventor

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

C03Bprimary
C03BManufacture, shaping, or supplementary processes27%
C30BSingle-crystal growth25%
Y10TTechnical subjects covered by former us classification21%
Y02PClimate change mitigation technologies in the production or processing of goods11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
B28BShaping clay or other ceramic compositions2%
C03CChemical composition of glasses, glazes or vitreous enamels2%
C04BLime, magnesia2%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h102%
PatentTitleYear
8,555,674'Quartz glass crucible for silicon single crystal pulling operation and process for manufacturing the same'20138,361,228'Crucible having a doped upper wall portion and method for making the same'20138,277,559'Quartz glass crucible for pulling up silicon single crystal and method for manufacture thereof'20127,993,556'Method for making a silica glass crucible'20117,716,948'Crucible having a doped upper wall portion and method for making the same'20107,686,887'Quartz glass crucible for pulling up silicon single crystal and method for producing the same'20107,587,912'Method for producing quartz glass crucible for use in pulling silicon single crystal and quartz glass crucible produced by said method'20097,556,764'Silica vessel with nozzle and method of making'20097,427,327'Silica glass crucible with barium-doped inner wall'20087,383,696'Silica glass crucible with bubble-free and reduced bubble growth wall'20087,299,658'Quartz glass crucible for the pulling up of silicon single crystal'20077,074,731'Method for producing hydrogen-doped silica powder, hydrogen-doped silica powder obtained from that method for use in a quartz glass crucible'20066,886,364'Method for producing quartz glass crucible'20056,841,210'Multilayer structured quartz glass crucible and method for producing the same'20056,797,061'Quartz glass crucible for pulling up silicon single crystal and production method therefor'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004–2013Patents assigned to SHINETSU QUARTZ PROD (11)· patent assignee history
2004–2010Based in Takefu, JP· patent location history
2005–2013Patents assigned to HERAEUS QUARZGLAS (5)· patent assignee history
2007Patents assigned to HERAEUS QUARZGLAS GMBH & CO K (1)· patent assignee history
2007–2013Based in Echizen-shi, JP· patent location history
2008–2013Patents assigned to HERAEUS SHIN ETSU AMERICA INC (6)· patent assignee history
2008–2013Based in Fukui, JP· patent location history
2012–2013Patents assigned to OHAMA YASUO (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHINETSU QUARTZ PROD112004–2013
HERAEUS SHIN ETSU AMERICA INC62008–2013
HERAEUS QUARZGLAS52005–2013
OHAMA YASUOself32012–2013
HERAEUS QUARZGLAS GMBH & CO K12007
Locations
LocationPatentsSpan
Fukui, JP62008–2013
Takefu, JP62004–2010
Echizen-shi, JP32007–2013