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Inventor

Takashi Ohnaka

Inventor
Moriguchi, JP

Overview

3→
Patents
1989–2000
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.

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer40%
H04NPictorial communication, e.g. television40%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
PatentTitleYear
6,014,494'Method of recording image data'20005,715,358'Method for recording at least two picture signals and method of reproduction at least two picture signals'19984,802,028'Method and apparatus for erasing a magnetic disc employing erasing signals having at least two different frequencies'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2000Patents assigned to SANYO ELECTRIC CO (3)· patent assignee history
1989Based in Hirakata, JP· patent location history
1998Based in Osaka, JP· patent location history
2000Based in Moriguchi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SANYO ELECTRIC CO31989–2000
Locations
LocationPatentsSpan
Moriguchi, JP12000
Osaka, JP11998
Hirakata, JP11989