Inventor

Yutaka Hiratsuka

Inventor

Yokohama, JP

Overview

1985–1996

Patent span

Physics

Primary field (CPC G)

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

G01Nprimary

G01NInvestigating or analysing materials by determining their chemical or physical properties35%

H05HPlasma technique12%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1012%

B08BCleaning in general6%

C23CCoating metallic material6%

G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light6%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices6%

H01JElectric discharge tubes or discharge lamps6%

H05GX-ray technique6%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1985–1990Patents assigned to HITACHI LTD (7)· patent assignee history

1985–1996Based in Yokohama, JP· patent location history

1990Patents assigned to HITACHI PLANT ENG & CONSTR CO (1)· patent assignee history

1990Patents assigned to TADAHIRO OHMI (1)· patent assignee history

1990Based in Chiyoda-ku, JP· patent location history

1996Patents assigned to DAN SCIENCE CO LTD (1)· patent assignee history

Assignee and location history derived from the patent record.

Assignees

Locations

Location	Patents	Span
Yokohama, JP	8	1985–1996
Chiyoda-ku, JP	1	1990