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Inventor

Tohru Segawa

Inventor
Koriyama, JP

Overview

4→
Patents
1999–2010
Patent span
Chemistry
Primary field (CPC C)

Patents· 4 as inventor

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

C03Cprimary
C03CChemical composition of glasses, glazes or vitreous enamels44%
C03BManufacture, shaping, or supplementary processes22%
H01JElectric discharge tubes or discharge lamps11%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1011%
Y10TTechnical subjects covered by former us classification11%
PatentTitleYear
7,841,211'Production process of synthetic quartz glass'20106,869,898'Quartz glass jig for processing apparatus using plasma'20056,680,455'Plasma resistant quartz glass jig'20045,876,473'Method of producing cristobalite containing silica glass'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999–2010Based in Koriyama, JP· patent location history
2004–2010Patents assigned to SHINETSU QUARTZ PROD (3)· patent assignee history
2004–2005Patents assigned to HERAEUS QUARZGLAS (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHINETSU QUARTZ PROD32004–2010
HERAEUS QUARZGLAS22004–2005
Locations
LocationPatentsSpan
Koriyama, JP41999–2010