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Inventor

Toshiro Tanaka

Inventor
Tokyo, JP

Overview

4→
Patents
1978–1980
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 4 as inventor

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

A23Dprimary
A23DEdible oils or fats, e.g. margarines, shortenings or cooking oils20%
C11CFatty acids from fats, oils or waxes20%
G11BInformation storage based on relative movement between record carrier and transducer20%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
Y10TTechnical subjects covered by former us classification20%
PatentTitleYear
4,183,971'Hard butter'19804,172,176'Magnetic recording medium'19794,156,052'Magnetic recording medium'19794,108,879'Hard butter'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978Patents assigned to ASAHI DENKA KOGYO KK (1)· patent assignee history
1978–1980Based in Tokyo, JP· patent location history
1979Patents assigned to SONY CORP (2)· patent assignee history
1979Based in Izumi, JP· patent location history
1980Patents assigned to ASAHI ELECTROCHEMICAL IND CO L (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SONY CORP21979
ASAHI DENKA KOGYO KK11978
ASAHI ELECTROCHEMICAL IND CO L11980
Locations
LocationPatentsSpan
Tokyo, JP21978–1980
Izumi, JP21979