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Inventor

Toshiharu Shirakura

Inventor
Ibaraki, JP

Overview

14→
Patents
1981–1993
Patent span
Electricity
Primary field (CPC H)

Patents· 14 as inventor

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

H01Sprimary
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light75%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
B23KSoldering or unsoldering6%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light6%
PatentTitleYear
5,202,898'Laser oscillator, laser resonator, and apparatus for manufacturing of semiconductor'19935,117,434'Metal vapor laser apparatus'19924,991,180'Metallic vapor laser apparatus'19914,740,980'Gas laser device'19884,602,372'Gas laser generator'19864,590,599'Gas laser device'19864,541,097'Gas laser device with plural electrode members on the upper gas flow side'19854,500,998'Gas laser'19854,474,468'Method of and apparatus for measuring laser beam'19844,468,777'Mirror supporting frame for gas laser oscillation apparatus'19844,391,519'Axis-monitoring apparatus for a laser beam'19834,351,052'Coaxial type gas-flow laser device'19824,331,939'Gas laser device'19824,287,487'Gas laser generating device of the longitudinal gas flow type'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1993Patents assigned to HITACHI LTD (14)· patent assignee history
1981–1984Based in Tokai, JP· patent location history
1984–1988Based in Ibaraki, JP· patent location history
1985–1993Based in Toukai, JP· patent location history
1985Based in Tohkai, JP· patent location history
1991Based in Toka, JP· patent location history
1993Patents assigned to HITACHI ENG CO LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD141981–1993
HITACHI ENG CO LTD11993
Locations
LocationPatentsSpan
Ibaraki, JP41984–1988
Tokai, JP41981–1984
Toukai, JP31985–1993
Toka, JP11991
Tohkai, JP11985