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Inventor

Reiji Ishikawa

Inventor
Chiyoda-ku, JP

Overview

3→
Patents
1984–2021
Patent span
Physics
Primary field (CPC G)

Patents· 3 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus50%
C03CChemical composition of glasses, glazes or vitreous enamels33%
G01SRadio direction-finding17%
PatentTitleYear
10,989,794Scanning optical system and radar20214,803,337'Method for producing a light transmitting filter'19894,438,160'Method of making a rotary ball display device'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–1989Patents assigned to SONY CORP (2)· patent assignee history
1984Based in Kanagawa, JP· patent location history
1989Based in Tokyo, JP· patent location history
2021Patents assigned to KONICA MINOLTA INC (1)· patent assignee history
2021Based in Chiyoda-ku, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SONY CORP21984–1989
KONICA MINOLTA INC12021
Locations
LocationPatentsSpan
Chiyoda-ku, JP12021
Tokyo, JP11989
Kanagawa, JP11984