Inventor

Mutsuo Takenaga

Inventor

Katano, JP

Overview

11→

Patents

1976–1990

Patent span

Physics

Primary field (CPC G)

Patents· 11 as inventor

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

G11Bprimary

G11BInformation storage based on relative movement between record carrier and transducer33%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests25%

G03CPhotosensitive materials for photographic purposes13%

C09KMaterials for miscellaneous applications, not provided for elsewhere8%

C23CCoating metallic material4%

G01TMeasurement of nuclear or x-radiation4%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein4%

G11CStatic stores4%

Y10TTechnical subjects covered by former us classification4%

PatentTitleYear

4,935,336'Optical recording medium'1990 4,916,048'Optical recording medium and method of optical recording and erasing using medium'1990 4,659,588'Method of producing optical recording medium'1987 4,624,914'Optical information recording medium of Te, O and Pd and method for making same'1986 4,569,038'Optical disk, high density optical disk system, and high density recording/reproducing method using the optical disk'1986 4,383,029'Recording medium and recording system'1983 4,322,839'Method and apparatus for recording and reproducing information on and from an optical disk'1982 4,290,909'Process for producing a lithium borate thermoluminescent and fluorescent substance'1981 4,248,731'Thermoluminescent material'1981 4,091,171'Optical information storage material and method of making it'1978 3,971,874'Optical information storage material and method of making it'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1990Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (10)· patent assignee history

1976–1990Based in Katano, JP· patent location history

1982Based in Kadoma, JP· patent location history

1986–1990Patents assigned to TAKENAGA MUTSUO (2)· patent assignee history

1986Patents assigned to AKAHIRA NOBUO (1)· patent assignee history

1986Patents assigned to KIMURA KUNIO (1)· patent assignee history

1986–1990Based in Osaka, JP· patent location history

1990Patents assigned to NISHIUCHI KENICHI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD	10	1976–1990
TAKENAGA MUTSUOself	2	1986–1990
AKAHIRA NOBUO	1	1986
KIMURA KUNIO	1	1986
NISHIUCHI KENICHI	1	1990

Locations

Location	Patents	Span
Katano, JP	7	1976–1990
Osaka, JP	3	1986–1990
Kadoma, JP	1	1982