Inventor

Masatoshi Marui

Inventor

Saitama, JP

Overview

6→

Patents

1980–1992

Patent span

Physics

Primary field (CPC G)

Patents· 6 as inventor

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

A61Bprimary

A61BDiagnosis20%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein20%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices20%

H05KPrinted circuits20%

G01HMeasurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves7%

G01RMeasuring electric variables7%

H05BElectric heating7%

PatentTitleYear

5,078,474'Exposure apparatus having a magnifying lens system'1992 5,062,692'Exposure apparatus'1991 5,026,145'Exposure apparatus'1991 4,273,959'Larynx stroboscope device'1981 4,232,685'Larynx stroboscope for photography'1980 4,222,394'System for processing a waveform for a larynx stroboscope'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–1992Patents assigned to ASAHI OPTICAL CO LTD (6)· patent assignee history

1980–1981Based in Kami Fukuoka, JP· patent location history

1980Based in Fukuoka, JP· patent location history

1991–1992Based in Saitama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
ASAHI OPTICAL CO LTD	6	1980–1992

Locations

Location	Patents	Span
Saitama, JP	3	1991–1992
Kami Fukuoka, JP	2	1980–1981
Fukuoka, JP	1	1980